CTI BIOPHARMA CORP (Form: 10-K, Received: 03/13/2019 17:06:06)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)



x	ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2018



¨	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number: 000-28386

CTI BIOPHARMA CORP.

(Exact name of registrant as specified in its charter)



Delaware		91-1533912
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification Number)
3101 Western Avenue, Suite 800 Seattle, WA		98121
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (206) 282-7100

Securities registered pursuant to Section 12(b) of the Act:



Title of each class		Name of each exchange on which registered
Common Stock, $0.001 par value per share		The NASDAQ Stock Market LLC

Securities registered pursuant to Section 12(g) of the Act:

None.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ¨ No x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Yes ¨ No x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x No ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of the registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of the Form 10-K or any amendment to the Form 10-K. ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”, “smaller reporting company” and "emerging growth company" in Rule 12b-2 of the Exchange Act.



Large accelerated filer ¨		Accelerated filer x

Non-accelerated filer ¨		Smaller reporting company x

Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ¨ No ý

As of June 30, 2018 , the aggregate market value of the registrant’s common equity held by non-affiliates was approximately $252.1 million. Shares of common stock held by each executive officer and director and by each other person who may be deemed to be an affiliate of the registrant have been excluded from this computation. This determination of affiliate status for this purpose is not necessarily a conclusive determination for other purposes.

The number of outstanding shares of the registrant’s common stock as of February 28, 2019 was 57,980,075 .

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive proxy statement relating to its 2019 annual meeting of stockholders, or the 2019 Proxy Statement, are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated. The 2019 Proxy Statement will be filed with the U.S. Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.

CTI BIOPHARMA CORP.

TABLE OF CONTENTS



		Page
PART I
ITEM 1.	BUSINESS	3
ITEM 1A.	RISK FACTORS	24
ITEM 1B.	UNRESOLVED STAFF COMMENTS	45
ITEM 2.	PROPERTIES	45
ITEM 3.	LEGAL PROCEEDINGS	45
ITEM 4.	MINE SAFETY DISCLOSURES	46
PART II
ITEM 5.	MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES	47
ITEM 6.	SELECTED FINANCIAL DATA	48
ITEM 7.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	48
ITEM 7A.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	56
ITEM 8.	FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA	57
ITEM 9.	CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE	90
ITEM 9A.	CONTROLS AND PROCEDURES	90
ITEM 9B.	OTHER INFORMATION	93
PART III
ITEM 10.	DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE	94
ITEM 11.	EXECUTIVE COMPENSATION	94
ITEM 12.	SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS	94
ITEM 13.	CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE	94
ITEM 14.	PRINCIPAL ACCOUNTING FEES AND SERVICES	94
PART IV
ITEM 15.	EXHIBITS, FINANCIAL STATEMENT SCHEDULES	95
ITEM 16.	FORM 10-K SUMMARY	100
SIGNATURES		100
CERTIFICATIONS

Forward Looking Statements

This Annual Report on Form 10-K and the documents we incorporate by reference herein or therein may contain “forward-looking statements” within the meaning of the United States, or the U.S., federal securities laws. All statements other than statements of historical fact are forward-looking statements, including, without limitation:


•	our expectations regarding sufficiency of cash resources, cash expenditures, sources of cash flows and other projections, product manufacturing and sales, research and development expenses, selling, general and administrative expenses and additional losses;


•	our ability to obtain funding for our operations;


•	the timing of, and our ability to develop, commercialize, and obtain regulatory approval of pacritinib and other development programs;


•	the design of our clinical trials and anticipated enrollment, and the progress and potential of our other development programs;


•	the timing of and results from clinical trials and pre-clinical development activities, including those related to pacritinib and our other product candidates;


•	our ability to advance product candidates into, and successfully complete, clinical trials;


•	our ability to achieve profitability, including our ability to effectively implement cost reduction strategies and realize anticipated cost savings from those efforts;


•	our ability to receive milestones, royalties and sublicensing fees under our collaborations, and the timing of such payments;


•	our expectations regarding federal, state and foreign regulatory requirements;


•	the rate and degree of market acceptance and clinical utility of any current or future products;


•	the timing of, and our and our collaborators’ ability to obtain and maintain, regulatory approvals for our product candidates;


•	our ability to maintain and establish collaborations;


•	our expectations regarding market risk, including interest rate changes and foreign currency fluctuations;


•	our ability to protect our intellectual property and operate our business without infringing upon the intellectual property rights of others;


•	our ability to negotiate, integrate, and implement collaborations, acquisitions and other strategic transactions;


•	our ability to engage and retain the employees required to advance our development activities and grow our business; and


•	developments relating to our competitors and our industry, including the success of competing therapies that are or become available.

In some cases, forward-looking statements can be identified by terms such as “anticipates,” “believes,” “continue,” “could,” “estimates,” “expects,” “intends,” “may,” “plans,” “potential,” “predicts,” “projects,” “should” or “will” or the negative thereof, variations thereof and similar expressions. Such statements are based on management’s current expectations and are subject to risks and uncertainties, which may cause actual results to differ materially from those set forth in the forward-looking statements. There can be no assurance that such expectations or any of the forward-looking statements will prove to be correct, and actual results could differ materially from those projected or assumed in the forward-looking statements. We urge you to carefully review the disclosures we make concerning risks and other factors that may affect our

business and operating results, including those made under Part I, Item 1, “Business,” Part I, Item 1A, “Risk Factors,” Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and elsewhere in this Annual Report on Form 10-K and any risk factors contained in subsequent Quarterly Reports on Form 10-Q that we file with the U.S. Securities and Exchange Commission, or the SEC.

In addition, statements that “we believe” and similar statements reflect our beliefs and opinions on the relevant subject. These statements are based upon information available to us as of the date of this report, and while we believe such information forms a reasonable basis for such statements, such information may be limited or incomplete, and our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all potentially available relevant information. These statements are inherently uncertain and investors are cautioned not to unduly rely upon these statements.

We do not intend to update any of the forward-looking statements after the date of this Annual Report on Form 10-K to conform these statements to actual results or changes in our expectations. Readers are cautioned not to place undue reliance on these forward-looking statements, which apply only as of the date of this Annual Report on Form 10-K.

In this Annual Report on Form 10-K, all references to “we,” “us,” “our,” the “Company” and “CTI” mean CTI BioPharma Corp. and our subsidiaries, except where it is otherwise made clear.

PART I

Item 1. Business

Overview

We are a biopharmaceutical company focused on the acquisition, development and commercialization of novel targeted therapies for blood-related cancers that offer a unique benefit to patients and their healthcare providers. Our goal is to build a profitable company by generating income from products we develop and commercialize, either alone or with partners. We concentrate our efforts on treatments that target blood-related cancers where there is an unmet medical need and are primarily focused on evaluating pacritinib for the treatment of adult patients with myelofibrosis.

Pacritinib

Our primary development candidate, pacritinib, is an investigational oral kinase inhibitor with specificity for JAK2, FLT3, IRAK1 and CSF1R. The JAK family of enzymes is a central component in signal transduction pathways, which are critical to normal blood cell growth and development, as well as inflammatory cytokine expression and immune responses. Mutations in these kinases have been shown to be directly related to the development of a variety of blood-related cancers, including myeloproliferative neoplasms, leukemia and lymphoma. In addition to myelofibrosis, the kinase profile of pacritinib suggests its potential therapeutic utility in conditions such as acute myeloid leukemia, or AML, myelodysplastic syndrome, or MDS, chronic myelomonocytic leukemia, or CMML, and chronic lymphocytic leukemia, or CLL, due to its inhibition of c-fms, IRAK1, JAK2 and FLT3. We believe pacritinib has the potential to be delivered as a single agent or in combination therapy regimens.

In May 2015, we announced the final results from PERSIST-1, our Phase 3 trial evaluating the efficacy and safety of pacritinib compared to the Best Available Therapy, or BAT, excluding JAK2 inhibitors, which included a broad range of currently utilized treatments, in 327 patients with myelofibrosis regardless of the patients' platelet counts. The study included patients with severe or life-threatening thrombocytopenia. Patients were randomized to receive 400 mg pacritinib once daily or BAT, excluding JAK2 inhibitors. The trial met its primary endpoint of spleen volume reduction, or SVR, (35 percent or greater from baseline to Week 24 by magnetic resonance imaging, or MRI, or computerized tomography, or CT). The most common treatment-emergent adverse events, or AEs, occurring in 20 percent or more of patients treated with pacritinib within 24 weeks, of any grade, were gastrointestinal (generally manageable diarrhea and nausea) and anemia.

On February 8, 2016, clinical studies under the investigational new drug, or IND, for pacritinib were placed on a full clinical hold issued by the FDA. A full clinical hold is an order to suspend investigations performed under the IND application. Under the full clinical hold, all patients on pacritinib at the time were required to discontinue pacritinib immediately and no patients could be enrolled or start pacritinib as initial or crossover treatment. In its written notification, the FDA stated that the reasons for the full clinical hold were that it noted interim overall survival results from the PERSIST-2 Phase 3 trial showing a detrimental effect on survival consistent with the results from PERSIST-1, as well as hemorrhagic/cardiac toxicities. The FDA had placed a partial hold on pacritinib on February 4, 2016.

In February 2016, prior to the clinical hold, we completed patient enrollment in the PERSIST-2 Phase 3 clinical trial. Under the full clinical hold, all patients participating in the PERSIST-2 clinical trial discontinued pacritinib treatment.

In August 2016, we announced the top-line results from PERSIST-2, our second Phase 3 trial of pacritinib for the treatment of patients with myelofibrosis whose platelet counts are less than or equal to 100,000 per microliter. Three hundred eleven (311) patients were enrolled in the study, which formed the basis for the safety analysis. Two hundred twenty-one (221) patients reached Week 24 (the primary analysis time point) at the time the clinical hold was imposed and constituted the intent-to-treat analysis population utilized for the evaluation of efficacy. Results demonstrated that the PERSIST-2 trial met one of the co-primary endpoints showing a statistically significant SVR in patients treated with pacritinib compared to BAT, including the approved JAK2 inhibitor ruxolitinib. The co-primary endpoint of reduction of Total Symptom Score, or TSS, was not achieved but trended toward improvement in TSS. There was no significant difference in overall survival across treatment arms, censored at the time of clinical hold. The most common treatment-emergent AEs, occurring in 20 percent or more of patients treated with pacritinib within 24 weeks, of any grade, were gastrointestinal (generally manageable diarrhea, nausea and vomiting) and hematologic (anemia and thrombocytopenia). Details of the trial were presented in a late-breaking

oral session at the American Society of Hematology Annual Meeting in December 2016. Subsequently, the results were published in JAMA Oncology in May 2018.

In January 2017, the FDA removed the full clinical hold following review of our complete response submission which included, among other items, final Clinical Study Reports for both the PERSIST-1 and 2 trials and FDA agreement on a proposed study design for a dose-exploration clinical trial (PAC203). At that time, the PAC203 trial was designed to enroll up to approximately 105 patients with primary myelofibrosis and who had failed prior ruxolitinib therapy across three dose regimens of pacritinib, 100 mg QD, 100 mg BID and 200 mg BID, to evaluate the dose response relationship for safety and efficacy (SVR at 12 and 24 weeks). The 200 mg BID dose was selected as the top dose based upon observations from the completed PERSIST-2 study. In PAC203, the entry criteria were modified to exclude patients with a history of cardiac and/or bleeding events and additional dose modification guidelines were implemented for the management of treatment-emergent cardiac and or bleeding events. The first patient in the PAC203 trial was enrolled in July 2017. In April 2018, we amended the protocol to expand the sample size to a maximum of 150 patients (or 50 patients per arm) to collect additional data for the safety and efficacy analyses. In July 2018, we announced that the independent data monitoring committee, or IDMC, for the PAC203 trial completed its planned interim data review of the PAC203 trial and that the IDMC did not identify any drug- or dose-related safety concerns and did not identify any concerns about cardiac or bleeding events. Following meetings with the FDA and EMA and consultation with the IDMC, we eliminated the interim efficacy analysis and focused the second interim data review, and all subsequent data reviews, on an assessment of safety. The protocol was amended to reflect this change and submitted to FDA. In October 2018, we announced the continuation of the PAC203 Phase 2 study without modification, following a planned second interim data review by the IDMC. The IDMC did not identify significant drug- or dose-related safety concerns and specifically did not identify any concerns around hemorrhagic or cardiac toxicity. A complete dataset from the fully enrolled study (including efficacy, safety, pharmacokinetic and pharmacodynamic data) will be used to determine the optimal dose of pacritinib for further clinical development, as requested by the FDA.The PAC203 study was fully enrolled in December 2018. In January 2019, the IDMC completed its planned third interim safety review and recommended that the study continue without modification.We expect to report the determination of the optimal dose of pacritinib in mid-2019 following a meeting with the FDA and top-line efficacy and safety data from the study are expected to be reported at a major medical meeting by the end of 2019.

In July 2018, we attended a Type B meeting with the FDA to discuss the proposed regulatory pathway for pacritinib. Based on FDA feedback at that meeting, we plan to conduct a randomized Phase 3 study of pacritinib in patients with myelofibrosis. We anticipate the dose and dosing schedule for the Phase 3 study will be determined using the results of the PAC203 study. We attended a Type C meeting with the FDA in December 2018 and received input on key elements of the design of the new randomized Phase 3 study of pacritinib in adult patients with myelofibrosis (primary myelofibrosis, post-polycythemia vera myelofibrosis, or post-essential thrombocythemia myelofibrosis) and who have severe thrombocytopenia (as defined by patients with platelet counts of less than 50,000 per microliter), an indication that has been recognized by the medical community as an important unmet medical need. The planned Phase 3 study is designed to evaluate the effects of pacritinib as compared to physician’s choice of treatment. The primary efficacy endpoint will be the proportion of patients achieving a greater than or equal to 35% SVR between baseline and Week 24. Secondary efficacy endpoints of the study include TSS reduction and overall survival. Before commencing the Phase 3 study, we plan to seek FDA advice on the proposed final protocol design and seek scientific advice from European countries to support alignment on the Phase 3 study design. To expedite the transition to Phase 3, we intend to amend the PAC203 protocol to include a Phase 3 component, with enrollment anticipated to commence following our determination of the optimal dose of pacritinib, which we expect to report in mid-2019.

The original Marketing Authorization Application, or MAA, for pacritinib was submitted to the European Medicines Agency, or EMA, in February 2016 with an indication statement based on the PERSIST-1 trial data. In its initial assessment report, the Committee for Medicinal Products for Human Use, or CHMP, determined that the original application was not approvable at that point in the review cycle because of major objections in the areas of efficacy, safety (hematological and cardiovascular toxicity) and the overall risk-benefit profile of pacritinib. Subsequent to the filing of the original MAA, data from the second Phase 3 trial of pacritinib, PERSIST-2, were reported.

Following discussions with the EMA about how PERSIST-2 data might address the major objections and how to integrate the data into the current application, we withdrew the original MAA, and submitted a new application for the treatment of patients with myelofibrosis who have thrombocytopenia (platelet counts less than 100,000 per microliter). The new MAA was validated by the EMA in July 2017. Validation confirms that the submission is complete and initiates the centralized review process by the CHMP. The CHMP review period is 210 days, excluding extension, question or opinion response periods, after which the CHMP opinion is reviewed by the European Commission, which usually issues a final decision on E.U. authorization within three months. If authorized, pacritinib would be granted a marketing license valid in all 28 E.U. member states, Norway, Iceland and Liechtenstein.

We received the Day 120 List of Questions, or LoQ, in November 2017, which included Major Objections in areas including efficacy, safety (including hematological, cardiovascular and infectious toxicities) and other concerns including the size of the data set and the pharmacokinetic analyses of the two dosing regimens studied in PERSIST-2. A request for an extension was submitted following a clarification meeting with the rapporteur, co-rapporteur and members of the EMA to provide the EMA with data from PAC203, and in January 2018, we were granted a three-month extension for submitting our response to the Day 120 LoQs. In December 2017 a preapproval GCP inspection of the PERSIST-2 clinical study was conducted by the EMA. In February 2018, the EMA issued its final GCP inspection report, which concluded that the PERSIST-2 clinical trial was generally conducted in compliance with GCP and internationally accepted ethical standards, that the deficient safety reporting procedures identified as inspection findings did not pose a direct risk to data quality and that the results from the PERSIST-2 clinical trial can be used for the evaluation and assessment of the MAA. In July 2018, we received the Day 180 LoQs and were granted a two-month extension to allow us to submit a snapshot of clinical data from the ongoing PAC203 study with our responses to the remaining list of questions. In the third quarter of 2018, we submitted comprehensive responses to the Day 180 LoQs, which included new data from the PAC203 trial. In November 2018, we received a second round of questions related to the Day 180 List of Outstanding Issues. We submitted responses to these additional questions, which included data from the ongoing open label PAC203 trial, in December 2018. We withdrew the MAA in February 2019 following interactions with CHMP, during which we learned that CHMP was likely to formally adopt a negative opinion in its evaluation of the application. CHMP indicated that the risk-benefit profile for pacritinib for the intended indication has not been sufficiently established with the clinical data available to date.

PIXUVRI

PIXUVRI is a novel aza-anthracenedione with unique structural and physiochemical properties. In May 2012, the European Commission granted conditional marketing authorization in the European Union, or the E.U., for PIXUVRI as a monotherapy for the treatment of adult patients with multiply relapsed or refractory aggressive B-cell non-Hodgkin lymphoma, or NHL. As part of the conditional marketing authorization in the E.U., we were required to conduct a post-authorization trial, which we refer to as PIX306, comparing PIXUVRI and rituximab with gemcitabine and rituximab in the setting of aggressive B-cell NHL and follicular grade 3 lymphoma. Enrollment for PIX306 was completed in August 2017 and, in July 2018, we and Les Laboratoires Servier and Institut de Recherches Internationales Servier, or together, Servier, announced that PIXUVRI plus rituximab did not show a statistically significant improvement in progression-free survival compared to gemcitabine plus rituximab. In February 2019, we and Servier agreed to mutually terminate our collaborative relationship. For more information on the termination of our agreement with Servier, see the section of this report captioned “- License Agreements - Servier.”

Our Strategy

Our objective is to become a leader in the acquisition, development and commercialization of novel therapeutics for the treatment of blood-related cancers. The key elements of our strategy to achieve these objectives are to:


•	Develop Pacritinib in Myelofibrosis. We intend to develop and commercialize pacritinib for adult patients with myelofibrosis.

•

Evaluate Strategic Product Collaborations to Accelerate Development and Commercialization. Where we believe it may be beneficial, we intend to evaluate additional collaborations to broaden and accelerate clinical trial development and potential commercialization of our product candidates. Collaborations have the potential to generate non-equity based operating capital, supplement our own internal expertise and provide us with access to the marketing, sales and distribution capabilities of our collaborators in specific territories.


•	Identify and Acquire Additional Pipeline Opportunities. Historically, we have built our candidate pipeline using multiple approaches, including through licensing and acquiring assets that we believe were initially undervalued opportunities. We plan to continue to seek out additional product candidates in an opportunistic manner.

Product and Development Portfolio

The following table summarizes our current product and development portfolio as of the date of this report:

(1) To expedite our transition to Phase 3, we intend to amend the PAC203 protocol to include a Phase 3 component, with enrollment anticipated to commence following our determination of the optimal dose of pacritinib, which we expect to report in mid-2019.

Oncology Market Overview and Opportunity

According to the American Cancer Society, or ACS, cancer is the second leading cause of death in the U.S., resulting in more than 600,000 deaths annually, or more than 1,600 people per day. Approximately 1.8 million new cases of cancer are expected to be diagnosed in 2019 in the U.S. While the exact prevalence of myelofibrosis is uncertain, a U.S. study presented at the 2012 American Society of Hematology reported a prevalence rate of 5.7 myelofibrosis cases per 100,000 people, indicating that there are approximately 18,000 myelofibrosis patients in the U.S. The most commonly used methods for treating patients with cancer are surgery, radiation and chemotherapy. Patients usually receive a combination of these treatments depending upon the type and extent of their disease.

We believe our expertise in blood-related cancers, together with our ability to identify unique therapies that address unmet medical needs that are potentially less toxic and more effective at treating and curing patients, may fill a significant unmet medical need for cancer patients.

Pacritinib

Overview

Our primary development candidate, pacritinib, is an investigational oral kinase inhibitor with specificity for JAK2, FLT3, IRAK1 and CSF1R. The JAK family of enzymes is a central component in signal transduction pathways, which are critical to normal blood cell growth and development, as well as inflammatory cytokine expression and immune responses. Mutations in these kinases have been shown to be directly related to the development of a variety of blood-related cancers, including myeloproliferative neoplasms, leukemia and lymphoma. In addition to myelofibrosis, the kinase profile of pacritinib suggests its potential therapeutic utility in conditions such as acute myeloid leukemia, or AML, MDS, chronic myelomonocytic leukemia, or CMML, and CLL due to its inhibition of c-fms, IRAK1, JAK2 and FLT3. We believe pacritinib has the potential to be delivered as a single agent or in combination therapy regimens.

In August 2014, pacritinib was granted Fast Track designation by the FDA for the treatment of intermediate and high risk myelofibrosis, including, but not limited to patients with disease-related thrombocytopenia (low platelet counts); patients experiencing treatment-emergent thrombocytopenia on other JAK2 inhibitor therapy; or patients who are intolerant of or whose symptoms are not well controlled (sub-optimally managed) on other JAK2 therapy. The FDA’s Fast Track process is designed to facilitate the development and expedite the review of drugs to treat serious conditions and fill an unmet medical need.

Pacritinib was evaluated in two Phase 3 clinical trials, known as the PERSIST program, for patients with myelofibrosis, with one trial in a broad set of patients without limitations on platelet counts, the PERSIST-1 trial; and the other in patients with low platelet counts, the PERSIST-2 trial. Myelofibrosis is a rare blood cancer associated with significantly reduced quality of life and shortened survival. As the disease progresses, the body slows production of important blood cells and within one year of diagnosis, the incidence of disease-related thrombocytopenia (very low blood platelet counts), severe anemia and red blood cell transfusion requirements increase significantly. Among other complications, most patients with myelofibrosis present with enlarged spleens (splenomegaly), as well as many other potentially devastating physical symptoms such as abdominal discomfort, bone pain, feeling full after eating little, severe itching, night sweats and extreme fatigue. Currently patients with very low blood platelets (<50,000/µL) or those ineligible to receive, intolerant of or have insufficient response to the approved JAK1/JAK2 inhibitor have limited or no effective treatment options. Patients have poor survival following discontinuation of therapy with the approved JAK1/JAK2 therapy. We believe pacritinib may offer effective treatment of splenomegaly and disease-related symptoms in patients with severe thrombocytopenia and/or in patients with prior exposure to an approved JAK1/JAK2 inhibitor.

PERSIST-1 was a randomized (2:1), open-label, multi-center Phase 3 trial evaluating the efficacy and safety of pacritinib compared to BAT excluding JAK inhibitors, in 327 patients with myelofibrosis, without exclusion for low platelet counts. The primary endpoint for PERSIST-1 was the proportion of patients achieving a 35 percent or greater SVR from baseline to Week 24 as measured by MRI or CT, when compared with physician-specified BAT, excluding treatment with JAK2 inhibitors. The secondary endpoint was the percentage of patients achieving a 50 percent or greater reduction in TSS from baseline to week 24 as measured by tracking specific symptoms on a form, or Patient Reported Outcome, or PRO, instrument. At study entry, 46 percent of patients were thrombocytopenic; 32 percent of patients had platelet counts less than 100,000 per microliter (<100,000/µL); and 16 percent of patients had platelet counts less than 50,000 per microliter (<50,000/µL); normal platelet counts range from 150,000 to 450,000 per microliter. At the time of initiation of the trial, PERSIST-1 utilized the Myeloproliferative Neoplasm Symptom Assessment Form, or MPN-SAF TSS, the PRO instrument developed by Mayo Clinic, to measure TSS reduction. We collaborated with Mayo Clinic and the FDA and developed a modified instrument to be used as the endpoint for pacritinib clinical development. As a result, we amended the PERSIST-1 trial protocol to replace the original MPN-SAF TSS instrument with a new instrument, known as the MPN-SAF TSS 2.0, which was also used for recording patient-reported outcomes for the PERSIST-2 trial. In connection with this amendment, we increased patient enrollment in the PERSIST-1 study from 270 to 327 patients.

In May 2015, data from PERSIST-1 showed that compared to BAT (exclusive of a JAK inhibitor) pacritinib therapy resulted in a significantly higher proportion of patients with SVR and control of disease-related symptoms meeting the primary endpoint of the trial.

The following table shows the proportion of patients randomized to pacritinib or BAT who achieved a ≥35% SVR from baseline at Week 24 or up to Week 24 in the intent-to-treat, or ITT, population or evaluable patient population. The greatest difference in treatment arms was observed in evaluable patients with the lowest platelet counts (<50,000/µL platelets) (33.3 percent with pacritinib vs 0 percent with BAT) (p=0.037).

Spleen Volume Reduction of ≥35% at Week 24 by Platelet Levels



	Pacritinib	BAT	p-value
All Platelet Levels
ITT*	19% (n=220)	5% (n=107)	0.0003
Evaluable**	25% (n=168)	6% (n=85)	<0.0001

< 100,000/µL platelets
ITT	17% (n=72)	0% (n=34)	0.0086
Evaluable	24% (n=51)	0% (n=24)	0.0072

< 50,000/µL platelets
ITT	23% (n=35)	0% (n=16)	0.0451
Evaluable	33% (n=24)	0% (n=11)	0.0370

* ITT - primary analysis included all patients randomized. Patients who missed MRI or CT scans at baseline or at Week 24 were counted as non-responders.

** Evaluable - analysis included patients who had assessment at both baseline and at Week 24.

Results from PERSIST-1 PRO and other quality of life measures showed significant improvements in symptom score with pacritinib therapy compared to BAT (exclusive of a JAK inhibitor) across the symptoms reported in the presentation. Patients treated with pacritinib experienced greater improvement in their disease-related symptoms (ITT patient population: 24.5 percent of pacritinib-treated patients vs 6.5 percent of BAT-treated patients, p<0.0001; evaluable patient population: 40.9 percent of pacritinib-treated patients vs 9.9 percent of BAT-treated patients, p<0.0001).

Additionally, 25 percent of patients treated with pacritinib who were severely anemic and transfusion dependent - requiring at least six units of blood in the 90 days prior to study entry - became transfusion independent, compared to zero patients treated with BAT (p<0.05). Among patients with the lowest baseline platelets (<50,000/µL) who received treatment with pacritinib, a significant increase in platelet counts was observed over time compared to BAT (p=0.003) - with a 35 percent increase in platelet counts from baseline to Week 24.

The most common adverse events, occurring in 10 percent or more of patients treated with pacritinib within 24 weeks, of any grade, were: mild to moderate diarrhea, nausea, anemia, thrombocytopenia, and vomiting. Of the patients treated with pacritinib, 3 discontinued therapy and 13 patients required dose interruption (average one week) for diarrhea. Patients received a daily full dose of pacritinib over the duration of treatment. Gastrointestinal symptoms typically lasted for approximately one week and few patients discontinued treatment due to side effects. There were no Grade 4 gastrointestinal events reported.

In December 2015, primarily based on the results of the PERSIST-1 trial, we submitted a NDA to the FDA, for pacritinib requesting U.S. marketing approval of pacritinib for the treatment of patients with intermediate and high-risk myelofibrosis with low platelet counts of less than 50,000 per microliter (<50,000/µL) for whom there are no approved therapies.

The PERSIST-2 trial was a randomized (2:1), open-label, multi-center registration-directed Phase 3 trial evaluating pacritinib compared to BAT, including the approved JAK inhibitor dosed according to product label, for patients with myelofibrosis whose platelet counts are less than or equal to 100,000 per microliter (≤100,000/µL). Patients were randomized to receive 200 mg pacritinib twice daily, 400 mg pacritinib once daily or BAT. In October 2013, we reached an agreement with the FDA on a Special Protocol Assessment, or SPA, for the PERSIST-2 trial regarding the planned design, endpoints and statistical analysis approach of the trial. The SPA is a written agreement between us and the FDA regarding the design, endpoints and planned statistical analysis approach of the trial to be used in support of a NDA submission. Under the SPA, the agreed upon co-primary endpoints are the percentage of patients achieving a 35% or greater SVR measured by MRI or CT scan from baseline to Week 24 of treatment and the percentage of patients achieving a TSS reduction of 50 percent or greater using eight key symptoms as measured by the modified MPN-SAF TSS 2.0 diary from baseline to Week 24. The design of PERSIST-1 and PERSIST-2 allowed for patients on the BAT arm to crossover and receive treatment with pacritinib if their disease progresses or after they achieve the 24-week measurement endpoint. Although crossover design of clinical trials may confound evaluation of survival, such designs are frequently used in cancer studies, and the FDA has approved multiple oncology drugs that utilized crossover design in Phase 3 trials.

In February 2015, we received a recommendation from the Independent Data Monitoring Committee, or IDMC, in place at the time to terminate the PERSIST-1 trial and hold enrollment of new patients in the PERSIST-2 trial. The IDMC’s recommendation was based on non-statistically significant safety concerns, including mortality, in patients on pacritinib, particularly those who crossover after 24 weeks. The IDMC agreed that the recommendation would be only preliminary until we were unblinded to and could review the primary and secondary endpoint data as well as safety results from the PERSIST-1 trial. The IDMC recommendation was reviewed with the PERSIST Steering Committee, comprised of external experts and the study’s principal investigators who disagreed with the IDMC’s recommendation and expressed the view that the studies should continue as planned. We also asked an independent clinician and a statistician experienced in oversight of clinical trial safety to evaluate the safety profile of pacritinib in the PERSIST-1 trial. Neither was told of the recommendation reached by either the IDMC or the Steering Committee. Both experts agreed with the Steering Committee that the studies could continue. The firm that assembled the IDMC hired a second external independent statistician to review the IDMC’s analyses and recommendation, who also disagreed with the IDMC recommendation and concurred with the other independent experts that the studies need not be terminated nor enrollment held. In June 2015, the IDMC made its recommendation final and we provided to the FDA the information reviewed by the IDMC, the IDMC’s meeting minutes, and the written opinion of the Steering Committee co-chairs, the independent experts, and the second independent statistician. In July 2015, we requested a meeting with the FDA to confirm if we should continue the studies. The FDA assigned the request to a type C meeting. In its written response, the FDA did not mandate any modifications to the studies or place pacritinib on clinical hold at that time, but indicated that it had not yet reviewed the data and noted the difficulty in attempting to draw meaningful conclusions from non-significant results, and that the crossover designs may confound the analysis of survival. We determined that no modifications to the ongoing trials were required. We decided to commission a new IDMC because of these concerns regarding the previous

recommendation. The newly constituted IDMC met on several occasions and its recommendation was to continue PERSIST-2 as planned.

On February 8, 2016, the FDA notified us that a full clinical hold had been placed on pacritinib clinical studies. A full clinical hold is a suspension of the clinical work requested under the investigational new drug, or an IND, application. Under the full clinical hold, all patients on pacritinib at the time of the hold order were required to discontinue pacritinib immediately and no new patients could be enrolled or start pacritinib as initial or crossover treatment. In its written notification, the FDA cited the reasons for the full clinical hold were that it noted interim overall survival results from the PERSIST-2 Phase 3 trial showing a detrimental effect on survival consistent with the results from PERSIST-1. The deaths in PERSIST-2 in pacritinib-treated patients include intracranial hemorrhage, cardiac failure and cardiac arrest. In connection with the full clinical hold, the FDA recommended that we conduct Phase 1 dose exploration studies of pacritinib in patients with myelofibrosis, submit final clinical study reports, or CSRs, and datasets for PERSIST-1 and PERSIST-2, provide certain notifications, revise relevant statements in the related Investigator’s Brochure and informed consent documents and make certain modifications to protocols. In addition, the FDA recommended that we request a meeting prior to submitting a response to full clinical hold. As a result of the full clinical hold of pacritinib, the SPA agreement is no longer binding for PERSIST-2, and we withdrew the NDA.

In February 2016, prior to the clinical hold we completed patient enrollment in the PERSIST-2 Phase 3 clinical trial. Under the full clinical hold, all patients participating in the PERSIST-2 clinical trial discontinued pacritinib treatment.

In August 2016, we announced the top-line results from PERSIST-2. In the PERSIST-2 trial three hundred eleven (311) patients were randomized to receive 200 mg pacritinib BID, 400 mg pacritinib QD or BAT. Two hundred twenty-one (221) patients (74 pacritinib BID; 75 pacritinib QD; 72 BAT) were enrolled at least 24 weeks prior to the full clinical hold and were potentially evaluable for the Week 24 efficacy endpoint (ITT efficacy population). In the ITT efficacy population at study entry, 46 percent (101/221) of patients had platelet counts less than 50,000 per microliter (<50,000/µL), and 59 percent (130/221) were anemic (hemoglobin <10 g/dL). Normal platelet counts range from 150,000 to 450,000 per microliter. The percentage of patients in the ITT efficacy population who received prior ruxolitinib was as follows: 41 percent (31/75) pacritinib QD; 42 percent (31/74) pacritinib BID; and 46 percent (33/72) BAT. Safety analyses were based on all patients exposed to study treatment of any duration.

The co-primary endpoints of the trial were the proportion of patients achieving a 35 percent or greater SVR from baseline to Week 24 as measured by MRI or CT scan and the proportion of patients achieving a TSS reduction of 50 percent or greater using the modified MPN-SAF TSS 2.0 diary from baseline to Week 24. The primary objective of the study was to compare pooled pacritinib arms versus BAT and the secondary objectives were to compare pacritinib BID and QD arms individually to BAT. The study was designed to evaluate its objectives with a sample size of 300. At the time of clinical hold, study enrollment was completed with three hundred eleven (311) patients randomized, but only two hundred twenty one (221) patients had the potential to be evaluated for efficacy endpoints at Week 24.

The PERSIST-2 trial met one of the co-primary endpoints showing a statistically significant SVR in patients treated with pacritinib combining the once- and twice-daily arms compared to BAT. Although the PERSIST-2 trial did not meet the other co-primary endpoint of greater than 50 percent reduction in TSS, the results approached marginal significance compared to BAT. Although secondary objectives could not be evaluated formally due to the study not achieving one of the primary objectives, when the two pacritinib dosing arms were evaluated separately versus BAT, pacritinib given twice daily showed a higher percent of SVR and TSS responses compared to BAT; whereas, pacritinib given once daily showed only a higher percent SVR responses compared to BAT.

Spleen Volume Reduction of ≥35%; Total Symptom Score Reduction of ≥50% at Week 24



	Co-Primary Pacritinib BID + QD (n=149)	Secondary Pacritinib BID (n=74)	Secondary Pacritinib QD (n=75)	BAT (n=72)
Percent of Patients with ≥35% SVR from baseline to Week 24	18% (n=27;p=0.001)	22% (n=16;p=0.001)	15% (n=11;p=0.017)	3% (n=2)
Percent of Patients with ≥50% reduction in TSS from baseline to Week 24	25% (n=37;p=0.079)	32% (n=24;p=0.011)	17% (n=13;p=0.652)	14% (n=10)

A total of 45 percent of the BAT patients randomized received ruxolitinib at some point on the study.

There was no significant difference in overall survival, or OS, across treatment arms, censored at the time of clinical hold. Hazard ratios (95% confidence intervals, or CI) were 0.68 (0.30-1.53) for pacritinib BID versus BAT and 1.18 (0.57-2.44) for pacritinib QD versus BAT. Overall mortality rates at that time were comparable between arms: 9 percent BID versus 14 percent QD and 14 percent BAT.

The most common treatment-emergent AEs, occurring in 20 percent or more of patients treated with pacritinib within 24 weeks, of any grade, were gastrointestinal (generally manageable diarrhea, nausea and vomiting) and hematologic (anemia and thrombocytopenia) and were generally less frequent for BID versus QD administration. The most common serious treatment-emergent AEs (incidence of ≥5 percent reported in any treatment arm irrespective of grade) were anemia, thrombocytopenia, pneumonia and acute renal failure none of which exceeded 8 percent individually in any arm.

In January 2017, the FDA removed the full clinical hold following review of our complete response submission which included, among other items, final Clinical Study Reports for both PERSIST-1 and 2 trials and a dose-exploration clinical trial protocol that the FDA requested. At that time, the PAC203 trial was designed to enroll up to approximately 105 patients with primary myelofibrosis and who had failed prior ruxolitinib therapy across three dose regimens of pacritinib, 100 mg QD, 100 mg BID and 200 mg BID, to evaluate the dose response relationship for safety and efficacy (SVR at 12 and 24 weeks). The 200 mg BID dose was selected as the top dose based upon observations from the completed PERSIST-2 study. In PAC203, the entry criteria were modified to exclude patients with a history of cardiac and/or bleeding events and additional dose modification guidelines were implemented for the management of treatment-emergent cardiac and or bleeding events. The first patient in the PAC203 trial was enrolled in July 2017. In April 2018, we amended the protocol to expand the sample size to a maximum of 150 patients (or 50 patients per arm) to collect additional data for the safety and efficacy analyses. In July 2018, we announced that the IDMC for the PAC203 trial completed its planned interim data review of the PAC203 trial and that the IDMC did not identify any drug- or dose-related safety concerns and did not identify any concerns about cardiac or bleeding events. Following meetings with the FDA and EMA and consultation with the IDMC, we eliminated the interim efficacy analysis and focused the second interim data review, and all subsequent data reviews, on an assessment of safety. The protocol was amended to reflect this change and submitted to FDA. In October 2018, we announced the continuation of the PAC203 Phase 2 study without modification, following a planned second interim data review by the IDMC. The IDMC did not identify significant drug- or dose-related safety concerns and specifically did not identify any concerns around hemorrhagic or cardiac toxicity. A complete dataset from the fully enrolled study (including efficacy, safety, pharmacokinetic and pharmacodynamic data) will be used to determine the optimal dose of pacritinib for further clinical development, as requested by the FDA. The PAC203 study was fully enrolled in December 2018. In January 2019, the IDMC completed its planned third interim safety review and recommended that the study continue without modification. We expect to report the determination of the optimal dose of pacritinib in mid-2019 following a meeting with the FDA and top-line efficacy and safety data from the study are expected to be reported at a major medical meeting by the end of 2019.

In July 2018, we attended a Type B meeting with the FDA to discuss the proposed regulatory pathway for pacritinib. Based on FDA feedback at that meeting, we plan to conduct a randomized Phase 3 study of pacritinib in patients with myelofibrosis. We anticipated the dose and dosing schedule for the Phase 3 study will be determined using the results of the PAC203 study. We completed a Type C meeting with the FDA in December 2018 and received input from the FDA on key elements of the design of the new randomized Phase 3 study of pacritinib in adult patients with myelofibrosis (primary myelofibrosis, post-polycythemia vera myelofibrosis, or post-essential thrombocythemia myelofibrosis) and who have severe thrombocytopenia (as defined by patients with platelet counts of less than 50,000 per microliter), an indication that has been recognized by the medical community as an important unmet medical need. The planned Phase 3 study is designed to evaluate the effects of pacritinib as compared to physician’s choice of treatment. The primary efficacy endpoint will be the proportion of patients achieving a greater than or equal to 35% SVR between baseline and Week 24. Secondary efficacy endpoints of the study include TSS reduction and overall survival. Before commencing the Phase 3 study, we plan to seek FDA advice on the proposed final protocol design and seek scientific advice from European countries to support alignment on the Phase 3 study design. To expedite the transition to Phase 3, we intend to amend the PAC203 protocol to include a Phase 3 component, with enrollment anticipated to commence following our determination of the optimal dose of pacritinib, which we expect to report in mid-2019.

Marketing Authorization Application

The MAA for pacritinib was submitted to the EMA in February 2016 with an indication statement based on the PERSIST-1 trial data. In its initial assessment report, the CHMP determined that the original application was not approvable at

that point in the review cycle because of major objections in the areas of efficacy, safety (hematological and cardiovascular toxicity) and the overall risk-benefit profile of pacritinib. Subsequent to the filing of the original MAA, data from the second Phase 3 trial of pacritinib, PERSIST-2, were reported.

Following discussions with the EMA about how PERSIST-2 data might address the major objections and how to integrate the data into the current application, we withdrew the original MAA, and submitted a new application for the treatment of patients with myelofibrosis who have thrombocytopenia (platelet counts less than 100,000 per microliter). The new MAA was validated by the EMA in July 2017. Validation confirms that the submission is complete and initiates the centralized review process by the CHMP. The CHMP review period is 210 days, excluding question or opinion response periods, after which the CHMP opinion is reviewed by the European Commission, which usually issues a final decision on E.U. authorization within three months. If authorized, pacritinib would be granted a marketing license valid in all 28 E.U. member states, Norway, Iceland and Liechtenstein.

We received the Day 120 LoQ in November 2017, which included Major Objections in areas including efficacy, safety (including hematological, cardiovascular and infectious toxicities) and other concerns including the size of the data set and the pharmacokinetic analyses of the two dosing regimens studied in PERSIST-2. A request for an extension was submitted following a clarification meeting with the rapporteur, co-rapporteur and members of the EMA to provide the EMA with data from PAC203, and in January 2018, we were granted a three-month extension for submitting our response to the Day 120 LoQs. In December 2017 a preapproval GCP inspection of the PERSIST-2 clinical study was conducted by the EMA. In February 2018, the EMA issued its final GCP inspection report, which concluded that the PERSIST-2 clinical trial was generally conducted in compliance with GCP and internationally accepted ethical standards, that the deficient safety reporting procedures identified as inspection findings did not pose a direct risk to data quality and that the results from the PERSIST-2 clinical trial can be used for the evaluation and assessment of the MAA. In July 2018, we received the Day 180 LoQs and were granted a two-month extension to allow us to submit a snapshot of clinical data from the ongoing PAC203 study with our responses to the remaining list of questions. In the third quarter of 2018, we submitted comprehensive responses to the Day 180 LoQs, which included new data from the PAC203 trial. In November 2018, we received a second round of questions related to the Day 180 List of Outstanding Issues. We submitted responses to these additional questions, which included data from the ongoing open label PAC203 trial, in December 2018. We withdrew the MAA in February 2019 following interactions with CHMP, during which we learned that CHMP was likely to formally adopt a negative opinion in its evaluation of the application. CHMP indicated that the risk-benefit profile for pacritinib for the intended indication has not been sufficiently established with the clinical data available to date.

Development in Other Indications

In December 2014, we announced results of a preclinical analysis of kinase inhibition by pacritinib that demonstrated a unique kinome profile among agents in development for myelofibrosis and suggests potential therapeutic benefit across a spectrum of blood-related cancers. Pacritinib’s potent inhibition of IRAK1 and CSF1R highlight its potential therapeutic utility in other diseases, such as MDS, CLL, graft versus host disease, or GvHD, autoimmune diseases and breast cancer, some of which are currently being evaluated in investigator sponsored trials, or ISTs.

In October 2016, we regained worldwide rights for the development and commercialization of pacritinib following termination of the Pacritinib License Agreement with Baxalta. For additional information relating to the termination of the Pacritinib License Agreement, see “License Agreements - Baxalta” below.

PIXUVRI

PIXUVRI is a novel aza-anthracenedione with unique structural and physiochemical properties. In May 2012, the European Commission granted conditional marketing authorization in the E.U., for PIXUVRI as a monotherapy for the treatment of adult patients with multiply relapsed or refractory aggressive B-cell non-Hodgkin lymphoma, or NHL. As part of the conditional marketing authorization in the E.U., we were required to conduct a post-authorization trial, which we refer to as PIX306, comparing PIXUVRI and rituximab with gemcitabine and rituximab in the setting of aggressive B-cell NHL and follicular grade 3 lymphoma. Enrollment for PIX306 was completed in August 2017 and, in July 2018, we and Servier announced that PIXUVRI plus rituximab did not show a statistically significant improvement in progression-free survival compared to gemcitabine plus rituximab. In February 2019, we and Servier agreed to mutually terminate our collaborative

relationship. For additional information on our agreements with Servier, please see the discussion in “- License Agreements - Servier.”

Research and Development Expenses

Research and development is essential to our business. We spent $36.5 million and $32.9 million in 2018 and 2017, respectively, on company-sponsored research and development activities. The development of a product candidate involves inherent risks and uncertainties, including, among other things, that we cannot predict with any certainty the pace of enrollment of our clinical trials. As a result, we are unable to provide the nature, timing and estimated costs of the efforts necessary to complete the development of pacritinib. Even after a clinical trial is enrolled, preclinical and clinical data can be interpreted in different ways, which could delay, limit or preclude regulatory approval and advancement of this compound through the development process. For these reasons, among others, we cannot estimate the date on which clinical development of a product candidate will be completed or when, if ever, we will be able to commence commercialization of pacritinib. For additional information relating to our research and development expenses and associated risks, see Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Results of Operations - Years ended December 31, 2018 and 2017 - Operating costs and expenses - Research and development expenses ” and Part I, Item 1A, “Risk Factors.”

License Agreements

Servier

In April 2017, we entered into the Restated Agreement with Servier, pursuant to which we amended and restated our Exclusive License and Collaboration Agreement, or the Original Agreement, with Servier, entered into in September 2014. Under the Restated Agreement, we granted Servier an exclusive, sublicensable (subject to certain exceptions) license with respect to the development and commercialization of PIXUVRI for use in pharmaceutical products, or Licensed Products, outside of the U.S. (and its territories and possessions). In accordance with the Restated Agreement, we transferred to Servier medical affairs and commercialization activities relating to the Licensed Products in Austria, Denmark, Finland, Germany, Israel, Norway, Sweden, Turkey and the U.K., collectively referred to as the Transition Territory. We also terminated or assigned certain distributor and wholesaler contracts to Servier in the Transition Territory, which activities were completed in 2018. Pursuant to the Restated Agreement, each party has responsibility for the manufacture and supply of drug products and substances in its respective territory. In connection with the Restated Agreement, in October 2017, we and Servier entered into an amendment to our June 2015 trademark license agreement to provide for Servier’s right to use of our trademark PIXUVRI in connection with Licensed Products worldwide, excluding the U.S. (and its territories and possessions).

We received an upfront payment of €12.0 million from Servier, which included €2.0 million for a new milestone previously achieved, and Servier purchased PIXUVRI drug product for an additional €0.9 million in July 2017. Subject to the achievement of certain conditions, the Restated Agreement provided for certain milestone payments from Servier. In September 2017 and November 2018, we attained a regulatory milestone under the Restated Agreement and recorded milestone revenue in the amount of €1.0 million (or $1.2 million using the currency exchange rate as of the date the milestone was achieved) and €3.0 million (or $3.4 million using the currency exchange rate as of the date the milestone was achieved), respectively.

In February 2019, we entered into a Termination and Transfer Agreement, or the Servier Termination Agreement, with Servier, which terminates the Restated Agreement. Under the Servier Termination Agreement, we will continue to be responsible for non-U.S. pharmacovigilance for PIXUVRI, the submission of a marketing authorization application for PIXUVRI and wind down of the PIX306 clinical trial during a transition period, which will last until the EMA adopts a position on the PIXUVRI marketing authorization application. Servier agreed to reimburse us €620,000 for costs to be incurred in connection with transition period activities, and if the transition period extends beyond May 31, 2019, Servier will provide additional reimbursement to us not to exceed €50,000 per month or €200,000 in the aggregate. If the EMA’s definitive position results in a standard marketing authorization for PIXUVRI, we will transfer and assign all of our rights and responsibilities for PIXUVRI globally to Servier pursuant to an asset purchase agreement. Alternatively, if the EMA’s definitive position results in a conditional marketing authorization or suspension or withdrawal of the marketing authorization, then, at Servier’s election, we will either transfer and assign all of our rights and responsibilities for PIXUVRI globally to Servier pursuant to an asset purchase agreement or cooperate with Servier in the withdrawal of PIXUVRI from all jurisdictions other than the United States. The Servier Termination Agreement provides that, in either scenario, any asset purchase agreement will require, among other things, Servier to pay us €2.0 million and assume responsibility for all of the

obligations related to PIXUVRI, including our remaining royalty payments to Novartis International Pharmaceutical Ltd. and the University of Vermont.

Baxalta

In November 2013, we entered into a Development, Commercialization and License Agreement, dated as of November 14, 2013, with Baxter International Inc., or Baxter, for the development and commercialization of pacritinib for use in oncology and potentially additional therapeutic areas, or the Pacritinib License Agreement, which was subsequently amended in June 2015. Baxter assigned its rights and obligations under the Pacritinib License Agreement to Baxalta. Under the Pacritinib License Agreement, we granted to Baxter an exclusive, worldwide (subject to co-promotion rights discussed below), royalty-bearing, non-transferable, and (under certain circumstances outside of the U.S.) sub-licensable license to our know-how and patents relating to pacritinib.

In October 2016, we entered into the Asset Return and Termination Agreement, or the Baxalta Termination Agreement, with Baxalta. Pursuant to the Baxalta Termination Agreement, the Pacritinib License Agreement was terminated in its entirety (other than with respect to certain customary provisions that survive termination, including those pertaining to confidentiality and indemnification), the Pacritinib License Agreement has no further force or effect, and all rights and obligations of the Company and Baxalta under the Pacritinib License Agreement were terminated.

In October 2016, we resumed primary responsibility for the development and commercialization of pacritinib as a result of the Baxalta Termination Agreement and are no longer eligible to receive cost sharing or milestone payments for pacritinib’s development from Baxalta. In addition, under the Baxalta Termination Agreement, we are required to make a milestone payment to Baxalta in the amount of approximately $10.3 million upon the first regulatory approval or any pricing and reimbursement approvals of a product containing pacritinib.

University of Vermont

We entered into an agreement with the University of Vermont, or UVM, in March 1995, as amended, or the UVM Agreement, which grants us an exclusive sublicensable license for the rights to PIXUVRI. Pursuant to the UVM Agreement, we acquired the rights to make, have made, sell and use PIXUVRI, and we are obligated to make royalty payments to UVM ranging from low single digits to mid-single digits as a percentage of net sales; such royalty expenses are included in Cost of product sold in our consolidated financial statements. The higher royalty rate is payable for net sales in countries where specified UVM licensed patents exist, or where we have obtained orphan drug protection, until such UVM patents or such protection no longer exists. For a period of ten years after the first commercialization of PIXUVRI, the lower royalty rate is payable for net sales in such countries after expiration of the designated UVM patents or loss of orphan drug protection, and in all other countries without such specified UVM patents or orphan drug protection. Unless otherwise terminated, the term of the UVM Agreement continues for the life of the licensed patents in those countries in which a licensed patent exists, and continues for ten years after the first sale of PIXUVRI in those countries where no such patents exist. We may terminate the UVM Agreement, on a country-by-country basis or on a patent-by-patent basis, at any time upon advance written notice. UVM may terminate the UVM Agreement upon advance written notice in the event royalty payments are not made. In addition, either party may terminate the UVM Agreement in the event of an uncured material breach of the UVM Agreement by the other party or in the event of bankruptcy of the other party. If we enter into an asset purchase agreement with Servier pursuant to the Servier Termination Agreement, Servier will assume our obligations to make royalty payments to UVM under the UVM Agreement.

S*BIO

We acquired the compounds SB1518 (which is referred to as “pacritinib”) and SB1578, which inhibit JAK2 and FLT3, from S*BIO in May 2012. Under our agreement with S*BIO, we are required to make milestone payments to S*BIO up to an aggregate amount of $132.5 million if certain U.S., E.U. and Japanese regulatory approvals are obtained and if certain worldwide net sales thresholds are met in connection with any pharmaceutical product containing or comprising any compound that we acquired from S*BIO for use for specific diseases, infections or other conditions. At our election, we may pay up to 50% of any milestone payments to S*BIO through the issuance of shares of our common stock or shares of our preferred stock convertible into our common stock. In addition, S*BIO will be entitled to receive royalty payments from us at incremental rates in the low single-digits based on certain worldwide net sales thresholds on a product-by-product and country-by-country basis.

Novartis

In January 2014, we entered into a Termination Agreement with Novartis, or the Novartis Termination Agreement, to reacquire the rights to PIXUVRI previously granted to Novartis under our agreement entered into in September 2006, as amended, or the Original Novartis Agreement. Pursuant to the Novartis Termination Agreement, the Original Novartis Agreement was terminated in its entirety, except for certain customary provisions, including those pertaining to confidentiality and indemnification, which survive termination.

Under the Novartis Termination Agreement, we agreed not to transfer, license, sublicense or otherwise grant rights with respect to intellectual property of PIXUVRI and Opaxio unless the recipient thereof agrees to be bound by the terms of the Novartis Termination Agreement. We also agreed to provide potential payments to Novartis, including a percentage ranging from the low double-digits to the mid-teens, of any consideration received by us or our affiliates in connection with any transfer, license, sublicense or other grant of rights with respect to intellectual property of PIXUVRI or Opaxio; provided that such payments will not exceed certain prescribed ceilings in the low single-digit millions. Novartis is entitled to receive potential payments of up to $16.6 million upon the successful achievement of certain sales milestones of PIXUVRI and Opaxio. We are also obligated to pay to Novartis tiered low single-digit percentage royalty payments for the first several hundred million dollars in annual net sales, and 10% royalty payments thereafter based on annual net sales of each of PIXUVRI and Opaxio, subject to reduction in the event generic drugs are introduced and sold by a third party, causing the sale of PIXUVRI to fall by a percentage in the high double digits. Royalty payments for PIXUVRI are subject to certain minimum floor percentages in the low single digits. The royalty expenses payable under the Novartis Termination Agreement are included in Cost of product sold in our consolidated financial statements. If we enter into an asset purchase agreement with Servier pursuant to the Servier Termination Agreement, Servier will assume our obligations to make royalty payments to Novartis under the Novartis Termination Agreement.

Teva Pharmaceutical Industries Ltd.

In June 2005, we entered into an acquisition agreement with Cephalon, Inc., or Cephalon, pursuant to which we divested the compound, TRISENOX. Cephalon was subsequently acquired by Teva Pharmaceutical Industries Ltd., or Teva. Under this agreement, we have the right to receive up to $100 million in payments upon achievement by Teva of specified sales and development milestones related to TRISENOX. To date, we have received $60.0 million of such potential milestone payments as a result of having achieved certain sales milestones.

Other Agreements

We have several agreements with CROs, third-party manufacturers and distributors that have durations of greater than one year for the development and distribution of certain of our compounds.

Information about Customer and Geographic Concentrations

Information about customer and geographic revenue is set forth in Part II, Item 8, "Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements - Note 15. Customer and Geographic Concentrations " of this Annual Report on Form 10-K.

Patents and Proprietary Rights

We dedicate significant resources to protecting our intellectual property, which is important to our business. We have filed numerous patent applications in the U.S. and various other countries seeking protection of inventions originating from our research and development, and we have also obtained rights to various patents and patent applications under licenses with third parties and through acquisitions. Patents have been issued on many of these applications. We have pending patent applications or issued patents in the U.S. and foreign countries directed to PIXUVRI, pacritinib and other product candidates. However, the lives of these patents are limited. Patents for the individual products extend for varying periods according to the date of the patent filing or grant and the legal term of patents in the various countries where patent protection is obtained.

Our U.S. and foreign composition of matter patents for pacritinib expire as follows: U.S. patents expire in May 2028 (method) / January 2029 (compound) / March 2030 (salt); foreign patents expire in November 2026 (method and compound) / December 2029 (salt). We expect our U.S. and foreign patent applications for use of pacritinib for treating transplant rejection will expire in 2036. Pacritinib has orphan drug designation for myelofibrosis in the U.S. and the E.U.

Our U.S. and foreign patents for PIXUVRI (pixantrone) expire as follows: US Patent Nos. 5,616,709 and 5,506,232 covering the pixantrone compound (i.e., 6,9-bis[(2-aminoethyl)amino]benzo[g]isoquinoline-5,10-dione), and dimaleate salt thereof, expired in 2014. Other patents relating to PIXUVRI include a US patent expiring in August 2024 (injectable formulation); Foreign patents (except Europe) expiring in May 2023 (injectable formulation); and European patents expiring in March 2020 (salt) and May 2027 (injectable formulation). If we enter into an asset purchase agreement with Servier pursuant to the Servier Termination Agreement, we will be required to transfer our U.S. and foreign patents for PIXUVRI to Servier. For more information, see “- License Agreements - Servier.”

Each patent may be eligible for future patent term restoration of up to five years under certain circumstances. Also, regulatory exclusivity tied to the protection of clinical data may be complementary to patent protection. During a period of regulatory exclusivity, competitors generally may not use the original applicant’s data as the basis for a generic application. In the U.S., the data protection generally runs for five years from first marketing approval of a new chemical entity, extended to seven years for an orphan drug indication.

In the absence of a patent, we would, to the extent possible, need to rely on unpatented technology, know-how and confidential information. Ultimately, the lack or expiration at any given time of a patent to protect our compounds may allow our competitors to copy the underlying inventions and better compete with us.

The risks and uncertainties associated with our intellectual property, including our patents, are discussed in more detail in Part I, Item 1A, “Risk Factors.”

Manufacturing, Distribution and Associated Operations

Our manufacturing strategy utilizes third party contractors for the procurement and manufacture, as applicable, of raw materials, active pharmaceutical ingredients and finished drug product, as well as for labeling, packaging, storage and distribution of our compounds and associated supply chain operations. As our clinical development activities continue to expand, we expect that our manufacturing, distribution and related operational requirements will increase correspondingly. Additionally, in October 2016, we resumed primary responsibility for the development and commercialization of pacritinib as a result of the termination of the Pacritinib License Agreement. The development and commercialization of a major product candidate like pacritinib without a collaborative partner has significantly increased our manufacturing, distribution and related operational requirements, and we expect such increases to continue as we advance the clinical development of pacritinib.

Each third party contractor undergoes a formal qualification process by our subject matter experts prior to our entry into any service agreement and initiating any manufacturing work. We currently have a commercial supply arrangement for pacritinib.

Integral to our manufacturing strategy is our quality control and quality assurance program, which includes standard operating procedures and specifications with the goal that our compounds are manufactured in accordance with current Good Manufacturing Practices, or cGMPs, and other applicable global regulations. The cGMP compliance includes strict adherence to regulations for quality control, quality assurance and the maintenance of records and documentation. Manufacturing facilities for products and product candidates must meet cGMP requirements, and commercialized products must have acquired FDA, EMA and any other applicable regulatory approval. In this regard, we expect to continue to rely on contract manufacturers to produce sufficient quantities of our compounds in accordance with cGMPs for use in clinical trials and distribution.

We believe our operational strategy of utilizing qualified outside vendors in the foregoing manner allows us to direct our financial and managerial resources to development and commercialization activities, rather than to the establishment and maintenance of a manufacturing and distribution infrastructure.

Competition

Competition in the pharmaceutical and biotechnology industries is intense. We face competition from a variety of companies focused on developing oncology drugs. We compete with large pharmaceutical companies and with other specialized biotechnology companies. In addition to the specific competitive factors discussed below, new anti-cancer drugs that may be developed and marketed in the future could compete with our various compounds.

Pacritinib would compete with Jakafi ® , which is marketed by Incyte in the U.S. and Novartis ex-U.S. If approved, we may face competition from other candidates in development that target JAK inhibition to treat cancer such as fedratinib (Celgene) and momelotinib (Sierra Oncology).

Some of our existing or potential competitors have substantially greater financial, technical and human resources than us and may be better equipped to develop, manufacture and market products. Smaller companies may also prove to be significant competitors, particularly through collaborative arrangements with large pharmaceutical and established biotechnology companies. Many of these competitors have products that have been approved or are in development and operate large, well-funded research and development programs.

Companies that complete clinical trials, obtain required regulatory approvals and commence commercial sales of their products before us may achieve a significant competitive advantage if their products work through a similar mechanism as our products and if the approved indications are similar. A number of biotechnology and pharmaceutical companies are developing new products for the treatment of the same diseases being targeted by us. In some instances, such products have already entered late-stage clinical trials or received FDA or European Commission approval. However, cancer drugs with distinctly different mechanisms of action are often used together in combination for treating cancer, allowing several different products to target the same cancer indication or disease type. Such combination therapy is typically supported by clinical trials that demonstrate the advantage of combination therapy over that of a single-agent treatment.

We believe that our ability to compete successfully will be based on our ability to create and maintain scientifically advanced technology, develop proprietary products, attract and retain scientific personnel, obtain patent or other protection for our products, obtain required regulatory approvals and manufacture and successfully market our products, either alone or through outside parties. We will continue to seek licenses with respect to technology related to our field of interest and may face competition with respect to such efforts. See the risk factor, “ We face direct and intense competition from our competitors in the biotechnology and pharmaceutical industries, and we may not compete successfully against them. ” in Part I, Item 1A, “Risk Factors” of this Annual Report on Form 10-K for additional information regarding the risks and uncertainties we face due to competition in our industry.

Government Regulation

We are subject to extensive regulation by the FDA and other federal, state, and local regulatory agencies. The Federal Food, Drug, and Cosmetic Act, or the FDCA, and its implementing regulations set forth, among other things, requirements for the testing, development, manufacture, quality control, safety, effectiveness, approval, labeling, storage, record keeping, reporting, distribution, import, export, advertising and promotion of our products. Our activities in other countries will be subject to regulation that is similar in nature and scope as that imposed in the U.S., although there can be important differences. Additionally, some significant aspects of regulation in the E.U. are addressed in a centralized way through the EMA and the European Commission, but country-specific regulation by the competent authorities of the E.U. member states remains essential in many respects.

U.S. Regulation

In the U.S., the FDA regulates drugs under the FDCA and its implementing regulations, through review and approval of NDAs. NDAs require extensive studies and submission of a large amount of data by the applicant.

Drug Development

Preclinical Testing. Before testing any compound in human subjects in the U.S., a company must generate extensive preclinical data. Preclinical testing generally includes laboratory evaluation of product chemistry and formulation, as well as toxicological and pharmacological studies in several animal species to assess the quality and safety of the product. Animal studies must be performed in compliance with the FDA’s Good Laboratory Practice regulations and the U.S. Department of Agriculture’s Animal Welfare Act.

IND Application. Human clinical trials in the U.S. cannot commence until an IND application is submitted and becomes effective. A company must submit preclinical testing results to the FDA as part of the IND application, and the FDA must evaluate whether there is an adequate basis for testing the drug in initial clinical studies in human volunteers. Unless the FDA raises concerns, the IND application becomes effective 30 days following its receipt by the FDA. Once human clinical trials have commenced, the FDA may stop the clinical trials by placing them on “clinical hold” because of concerns about the safety of the product being tested, or for other reasons.

Clinical Trials. Clinical trials involve the administration of the drug to healthy human volunteers or to patients, under the supervision of a qualified investigator. The conduct of clinical trials is subject to extensive regulation, including compliance with the FDA’s bioresearch monitoring regulations and Good Clinical Practice, or GCP, requirements, which

establish standards for conducting, recording data from and reporting the results of, clinical trials, and are intended to assure that the data and reported results are credible and accurate, and that the rights, safety, and well-being of study participants are protected. Clinical trials must be conducted under protocols that detail the study objectives, parameters for monitoring safety, and the efficacy criteria, if any, to be evaluated. Each protocol is reviewed by the FDA as part of the IND application. In addition, each clinical trial must be reviewed, approved, and conducted under the auspices of an institutional review board, or IRB, at the institution conducting the clinical trial. Companies sponsoring the clinical trials, investigators, and IRBs also must comply with regulations and guidelines for obtaining informed consent from the study subjects, complying with the protocol and investigational plan, adequately monitoring the clinical trial and timely reporting adverse events. Foreign studies conducted under an IND application must meet the same requirements that apply to studies being conducted in the U.S. Data from a foreign study not conducted under an IND application may be submitted in support of an NDA if the study was conducted in accordance with GCP and the FDA is able to validate the data.

A study sponsor is required to submit certain details about active clinical trials and clinical trial results to the National Institutes of Health for public posting on http://clinicaltrials.gov. Human clinical trials typically are conducted in three sequential phases, although the phases may overlap with one another:

•

Phase 1 clinical trials include the initial administration of the investigational drug to humans, typically to a small group of healthy human subjects, but occasionally to a group of patients with the targeted disease or disorder. Phase 1 clinical trials generally are intended to determine the metabolism and pharmacologic actions of the drug, the side effects associated with increasing doses, and, if possible, to gain early evidence of effectiveness.


•	Phase 2 clinical trials generally are controlled studies that involve a relatively small sample of the intended patient population, and are designed to develop data regarding the product’s effectiveness, to determine dose response and the optimal dose range and to gather additional information relating to safety and potential adverse effects.

•

Phase 3 clinical trials are conducted after preliminary evidence of effectiveness has been obtained, and are intended to gather the additional information about safety and effectiveness necessary to evaluate the drug’s overall risk-benefit profile, and to provide a basis for physician labeling. Generally, Phase 3 clinical development programs consist of expanded, large-scale studies of patients with the target disease or disorder to obtain statistical evidence of the efficacy and safety of the drug, or the safety, purity, and potency of a biological product, at the proposed dosing regimen.

The sponsoring company, the FDA or the IRB may suspend or terminate a clinical trial at any time on various grounds, including a finding that the subjects are being exposed to an unacceptable health risk. Further, success in early-stage clinical trials does not assure success in later-stage clinical trials. Data obtained from clinical activities are not always conclusive and may be subject to alternative interpretations that could delay, limit or prevent regulatory approval.

The FDA and IND application sponsor may agree in writing on the design and size of clinical trials intended to form the primary basis of an effectiveness claim in an NDA application. This process is known as a SPA. These agreements may not be changed after the clinical trials begin, except in limited circumstances. The existence of a SPA, however, does not assure approval of a product candidate.

Drug Approval

Assuming successful completion of the required clinical testing, the results of the preclinical studies and of the clinical trials, together with other detailed information, including information on the manufacture and composition of the investigational product, are submitted to the FDA in the form of an NDA requesting approval to market the product for one or more indications. The testing and approval process requires substantial time, effort and financial resources. Submission of an NDA requires payment of a substantial review user fee to the FDA. The FDA will review the application and may deem it to be inadequate to support commercial marketing, and there can be no assurance that any product approval will be granted on a timely basis, if at all. The FDA may also seek the advice of an advisory committee, typically a panel of clinicians practicing in the field for which the product is intended, for review, evaluation and a recommendation as to whether the application should be approved. The FDA is not bound by the recommendations of the advisory committee.

The FDA has various programs, including breakthrough therapy, fast track, priority review and accelerated approval, that are intended to expedite or simplify the process for reviewing drugs and/or provide for approval on the basis of surrogate endpoints. Generally, drugs that may be eligible for one or more of these programs are those for serious or life-threatening conditions, those with the potential to address unmet medical needs and those that provide meaningful benefit over existing treatments. We cannot be sure that any of our drugs will qualify for any of these programs, or that, if a drug does qualify, the review time will be reduced or the product will be approved.

Before approving a NDA, the FDA usually will inspect the facility or the facilities where the product is manufactured, tested and distributed and will not approve the product unless cGMP compliance is satisfactory. If the FDA evaluates the NDA and the manufacturing facilities as acceptable, the FDA may issue an approval letter, or in some cases, a complete response letter. A complete response letter contains a number of conditions that must be met in order to secure final approval of the NDA. When and if those conditions have been met to the FDA’s satisfaction, the FDA will issue an approval letter. The approval letter authorizes commercial marketing of the drug for specific indications. As a condition of approval, the FDA may require post-marketing testing and surveillance to monitor the product’s safety or efficacy, or impose other post-approval commitment conditions.

In some circumstances, post-marketing testing may include post-approval clinical trials, sometimes referred to as Phase 4 clinical trials, which are used primarily to gain additional experience from the treatment of patients in the intended population, particularly for long-term safety follow-up. In addition, the FDA may require a Risk Evaluation and Mitigation Strategy, or REMS, to ensure that the benefits outweigh the risks. A REMS can include medication guides, physician communication plans and elements to assure safe use, such as restricted distribution methods, patient registries or other risk mitigation tools.

After approval, certain changes to the approved product, such as adding new indications, making certain manufacturing changes or making certain additional labeling claims, are subject to further FDA review and approval. Obtaining approval for a new indication generally requires that additional clinical trials be conducted.

Post-Approval Requirements

Holders of an approved NDA are required to: (i) report certain adverse reactions to the FDA; (ii) comply with certain requirements concerning advertising and promotional labeling for their products; and (iii) continue to have quality control and manufacturing procedures conform to cGMP after approval. The FDA periodically inspects the sponsor’s records related to safety reporting and/or manufacturing and distribution facilities; this latter effort includes assessment of compliance with cGMP. Accordingly, manufacturers must continue to expend time, money and effort in the area of production, quality control and distribution to maintain cGMP compliance. Future FDA inspections may identify compliance issues at manufacturing facilities that may disrupt production or distribution, or require substantial resources to correct. In addition, discovery of problems with a product after approval may result in restrictions on a product, manufacturer or holder of an approved NDA, including withdrawal of the product from the market.

Marketing of prescription drugs is also subject to significant regulation through federal and state agencies tasked with consumer protection and prevention of medical fraud, waste and abuse. After approval in the U.S., we must comply with FDA’s regulation of drug promotion and advertising, including restrictions on off-label promotion, and we comply with federal anti-kickback statutes, limitations on gifts and payments to physicians and reporting of payments to certain third parties, among other requirements.

Failure to comply with applicable U.S. requirements may subject us to administrative or judicial sanctions, such as clinical holds, FDA refusal to approve pending NDAs or supplemental applications, warning letters, product recalls, product seizures, total or partial suspension of production or distribution, injunctions and/or criminal prosecution.

Non-U.S. Regulation

Before our medicinal products can be marketed outside of the U.S., they must be subject to regulatory approval similar to that required in the U.S. The requirements governing the conduct of clinical trials, including requirements to conduct additional clinical trials, product licensing, safety reporting, post-authorization requirements, marketing and promotion, interactions with healthcare professionals, pricing and reimbursement may vary widely from country to country. No action can be taken to market any product in a country until an appropriate approval application has been approved by the regulatory authorities in that country. The current approval process varies from country to country, and the time spent in gaining approval varies from that required for FDA approval. In certain countries, the sales price of a product must also be approved. The pricing review period often begins after market approval is granted. Even if a product is approved by a regulatory authority, satisfactory prices may not be approved for such product.

Conduct of clinical trials in the E.U.

Similar to the United States, the various phases of non-clinical and clinical research in the E.U. are subject to significant regulatory controls. Although EU Clinical Trials Directive 2001/20/EC, or the Clinical Trials Directive, has sought to

harmonize the E.U. clinical trials regulatory framework, setting out common rules for the control and authorization of clinical trials in the E.U., E.U. Member States have transposed and applied the provisions of the Clinical Trials Directive in a manner that is not always uniform. This has led to variations in the rules governing the conduct of clinical trials in the individual E.U. Member States. The E.U. has, therefore, adopted Regulation (EU) No 536/2014, or the Clinical Trials Regulation. The Clinical Trials Regulation, which will replace the Clinical Trials Directive, introduces a complete overhaul of the existing regulation of clinical trials for medicinal products in the E.U., including a new coordinated procedure for authorization of clinical trials that is reminiscent of the mutual recognition procedure for marketing authorization of medicinal products, and increased obligations on sponsors to publish clinical trial results. The Clinical Trials Regulation is expected to take effect beginning in late 2019 or in 2020.

Clinical trials must currently be conducted in accordance with the requirements of the Clinical Trials Directive and applicable good clinical practice standards, as implemented into national legislation by the individual E.U. Member States. Under the current regime, before a clinical trial can be initiated it must be approved in each E.U. Member State where there is a site at which the trial is to be conducted by two separate entities: the National Competent Authority, or NCA, and one or more Ethics Committees. Under the current regime all suspected unexpected serious adverse reactions to the investigated drug that occur during the clinical trial must be reported to the NCA and to the Ethics Committees of the E.U. Member State where they occur.

In the E.U., pediatric data or an approved Pediatric Investigation Plan, or PIP, or waiver, must be approved by the European Medicines Agency, or EMA, prior to submission of a marketing authorization application to the EMA or to the competent authorities of the E.U. Member States. In most E.U. countries, companies are also required to have an approved PIP before enrolling pediatric patients in a clinical trial.

Marketing authorization procedures in the E.U. and post-marketing obligations

In the E.U., medicinal products may only be placed on the market after a related marketing authorization, or MA, has been granted. Marketing authorizations for medicinal products can be obtained through several different procedures founded on the same basic regulatory process. These are through the centralized procedure, the mutual recognition procedure, the decentralized procedure, or a national procedure (single E.U. Member State).The centralized procedure is mandatory for certain medicinal products, including orphan medicinal products, medicinal products derived from certain biotechnological processes, advanced therapy medicinal products and certain other new medicinal products containing a new active substance for the treatment of AIDS, cancer, neurodegenerative disorders, diabetes, auto-immune and viral diseases. It is optional for medicinal products containing a new active substance that is not yet authorized in the European Economic Area, or the EEA, and for medicinal products that constitute significant therapeutic, scientific or technical innovations, or for which grant of a marketing authorization through the centralized procedure would be in the interest of patients or animal health at E.U. level. The centralized procedure allows a company to submit a single application to the EMA which will provide a positive opinion regarding the application if it meets certain quality, safety, and efficacy requirements. Based on the positive opinion of the EMA, the European Commission takes a final decision to grant a centralized marketing authorization which is valid in all 28 E.U. Member States and three of the four European Free Trade Association, or EFTA countries (Iceland, Liechtenstein and Norway).

The decentralized authorization procedure permits companies to file identical applications for authorization to the competent authorities in several E.U. Member States simultaneously for a medicinal product that has not yet been authorized in any E.U. Member State. The competent authority of a single E.U. Member State, the reference member state, is appointed to review the application and provide an assessment report. The competent authorities of the other E.U. Member States, the concerned member states, are subsequently required to grant marketing authorization for their territories on the basis of this assessment. The only exception to this is where the competent authority of an E.U. Member State considers that there are concerns of potential serious risk to public health related to authorization of the product. In these circumstances the matter is submitted to the Heads of Medicines Agencies, or CMDh, for review. The mutual recognition procedure allows companies that have a medicinal product already authorized in one E.U. Member State to apply for this authorization to be recognized by the competent authorities in other E.U. Member States. The national marketing authorization procedure is founded on the same basic E.U. regulatory process as the other marketing authorization procedures discussed herein. The national marketing authorization procedure, which is increasingly rare, permits a company to submit an application to the competent authority of a single E.U. Member State and, if successful, to obtain a marketing authorization that is valid only in this E.U. Member State.

The maximum timeframe for the evaluation of a marketing authorization application in the E.U. is 210 days, excluding question or opinion response periods. The initial marketing authorization granted in the E.U. is valid for five years. The authorization may be renewed and remain valid for an unlimited period unless the national competent authority or the European Commission decides on justified grounds to proceed with one additional five-year renewal period. The renewal of a

marketing authorization is subject to a re-evaluation of the risk-benefit balance of the product by the national competent authorities or the EMA.

Similar to accelerated approval regulations in the U.S., conditional marketing authorizations can be granted in the E.U. by the European Commission in exceptional circumstances. A conditional marketing authorization can be granted for medicinal products where, although comprehensive clinical data referring to the safety and efficacy of the medicinal product have not been supplied, a number of criteria are fulfilled; i) the benefit/risk balance of the product is positive, ii) it is likely that the applicant will be in a position to provide the comprehensive clinical data, iii) unmet medical needs will be fulfilled by the grant of the marketing authorization and iv) the benefit to public health of the immediate availability on the market of the medicinal product concerned outweighs the risk inherent in the fact that additional data are still required. A conditional marketing authorization must be renewed annually. Under the provisions of the conditional marketing authorization for PIXUVRI, we were required to complete a post-marketing Phase 3 study to further investigate the effects of using PIXUVRI in a defined group of patients who had received prior treatment with rituximab. We submitted the related clinical study report to the EMA in November 2018.

In the E.U., innovative medicinal products that are subject to marketing authorization on the basis of a full dossier and which do not fall within the scope of the concept of global marketing authorization qualify for eight years of data exclusivity upon marketing authorization and ten years of market exclusivity. The eight years' data exclusivity prevents regulatory authorities in the E.U. from referencing the innovator’s data in assessing an application for authorization of a generic or biosimilar medicinal product for eight years from the data of authorization of the innovative product. After this period has expired a generic or biosimilar marketing authorization application may be submitted, and the innovator’s data may be referenced in the application. However, even if the generic product or biosimilar products is authorized it cannot be marketed in the E.U. for a further two years. The overall ten year market exclusivity period may be extended for a further year to a maximum of 11 years if, during the first eight years of those ten years, the marketing authorization holder obtains an authorization for one or more new therapeutic indications which, during the scientific evaluation prior to their authorization, are held to bring a significant clinical benefit in comparison with existing therapies.

Pricing and reimbursement in the E.U.

Even if a product is subject to a marketing authorization in the E.U., there can be no assurance that reimbursement for such product will be secured on a timely basis or at all. The E.U. Member States have the power to restrict the range of medicinal products for which their national health insurance systems provide reimbursement and to control the prices of medicinal products for human use. An E.U. Member State may approve a specific price for the medicinal product. Alternatively, it may adopt a system of direct or indirect controls on the profitability of the company placing the medicinal product on the market.

In a number of E.U. Member States we may be subject to cost-cutting measures, such as lower maximum prices, lower or lack of reimbursement coverage and incentives to use cheaper, usually generic, products as an alternative. Health Technology Assessment, or HTA, of medicinal products is becoming an increasingly common part of the pricing and reimbursement procedures in some E.U. Member States, including countries representing major markets. The HTA process, which is governed by the national laws of these countries, is the procedure according to which the assessment of the public health impact, therapeutic impact and the economic and societal impact of use of a given medicinal product in the national healthcare systems of the individual country is conducted. The outcome of HTA regarding specific medicinal products will often influence the pricing and reimbursement status granted to these medicinal products by the competent authorities of individual E.U. Member States. On January 31, 2018, the European Commission adopted a proposal for a regulation on health technologies assessment. This legislative proposal is intended to boost cooperation among E.U. Member States in assessing health technologies, including new medicinal products, and providing the basis for cooperation at the E.U. level for joint clinical assessments in these areas. The proposal provides that E.U. Member States will be able to use common HTA tools, methodologies, and procedures across the E.U., working together in four main areas, including joint clinical assessment of the innovative health technologies with the most potential impact for patients, joint scientific consultations whereby developers can seek advice from HTA authorities, identification of emerging health technologies to identify promising technologies early, and continuing voluntary cooperation in other areas. Individual E.U. Member States will continue to be responsible for assessing non-clinical (e.g., economic, social, ethical) aspects of health technology, and making decisions on pricing and reimbursement. The European Commission has stated that the role of the draft HTA regulation is not to influence pricing and reimbursement decisions in the individual E.U. Member States, but there can be no assurance that the draft HTA regulation will not have effects on pricing and reimbursement decisions.

Therefore, we will need to expend significant effort and expense to establish and maintain reimbursement arrangements in the various countries comprising the E.U. and may never succeed in obtaining widespread reimbursement arrangements therein.

Post-Approval Regulation

Similarly to the U.S., both marketing authorization holders and manufacturers of medicinal products are subject to comprehensive regulatory oversight by the EMA, the European Commission and the competent authorities of the individual E.U. Member States both before and after grant of the manufacturing and marketing authorizations. Failure by us or by any of our third-party partners, including suppliers, manufacturers and distributors to comply with E.U. laws and the related national laws of individual E.U. Member States governing the conduct of clinical trials, manufacturing approval, marketing authorization of medicinal products and marketing of such products, both before and after grant of marketing authorization, may result in administrative, civil or criminal penalties. These penalties could include delays or refusal to authorize the conduct of clinical trials or to grant marketing authorization, product withdrawals and recalls, product seizures, suspension, withdrawal or variation of the marketing authorization, total or partial suspension of production, distribution, manufacturing or clinical trials, operating restrictions, injunctions, suspension of licenses, fines and criminal penalties.

The holder of an E.U. marketing authorization for a medicinal product must also comply with E.U. pharmacovigilance legislation and its related regulations and guidelines, which entail many requirements for conducting pharmacovigilance, or the assessment and monitoring of the safety of medicinal products. These rules can impose on holders of marketing authorization granted through the centralized marketing authorization procedure the obligation to conduct a labor intensive collection of data regarding the risks and benefits of marketed medicinal products and to engage in ongoing assessments of those risks and benefits, including the possible requirement to conduct additional clinical studies, which may be time consuming and expensive and could impact our profitability. Marketing authorization holders are required to prepare Periodic Safety Update Reports in relation to medicinal products for which they hold marketing authorizations. The EMA reviews Periodic Safety Update Reports for medicinal products authorized through the centralized procedure. If the EMA has concerns that the risk benefit profile of a product has varied, it can adopt an opinion advising that the existing marketing authorization for the product be suspended, withdrawn or varied. The Agency can advise that the marketing authorization holder be obliged to conduct post-authorization Phase IV safety studies. The EMA opinion is submitted to the European Commission for its consideration. If the Commission agrees with the opinion, it can adopt a decision varying the existing marketing authorization. Failure by the marketing authorization holder to fulfill the obligations for which the European Commission's decision provides can undermine the on-going validity of the marketing authorization.

More generally, non-compliance with pharmacovigilance obligations can lead to the variation, suspension or withdrawal of the marketing authorization for the product or imposition of financial penalties or other enforcement measures.

The manufacturing process for medicinal products in the E.U. is highly regulated and regulators may shut down manufacturing facilities that they believe do not comply with regulations. Manufacturing requires a manufacturing authorization, and the manufacturing authorization holder must comply with various requirements set out in the applicable E.U. laws, regulations and guidance, including Directive 2001/83/EC, Directive 2003/94/EC, Regulation (EC) No 726/2004 and the European Commission Guidelines for Good Manufacturing Practice. These requirements include compliance with E.U. cGMP standards when manufacturing medicinal products and active pharmaceutical ingredients, including the manufacture of active pharmaceutical ingredients outside of the E.U. with the intention to import the active pharmaceutical ingredients into the E.U. Similarly, the distribution of medicinal products into and within the E.U. is subject to compliance with the applicable E.U. laws, regulations and guidelines, including the requirement to hold appropriate authorizations for distribution granted by the competent authorities of the E.U. Member States.

We and our third-party manufacturers are subject to cGMP, which are extensive regulations governing manufacturing processes, stability testing, record keeping and quality standards as defined by the EMA, the European Commission, the competent authorities of E.U. Member States and other regulatory authorities. Companies may be subject to civil, criminal or administrative sanctions. These include suspension of manufacturing authorization in case of non-compliance with the E.U. or E.U. Member States’ requirements governing the manufacturing of medicinal products.

Sales and Marketing Regulations

In the E.U., the advertising and promotion of our products are subject to E.U. Member States’ laws governing promotion of medicinal products, interactions with physicians, misleading and comparative advertising and unfair commercial practices. In addition, other legislation adopted by individual E.U. Member States may apply to the advertising and promotion of medicinal products. These laws require that promotional materials and advertising in relation to medicinal products comply

with the product’s Summary of Product Characteristics, or SmPC, as approved by the competent authorities. Promotion of a medicinal product that does not comply with the SmPC is considered to constitute off-label promotion. The off-label promotion of medicinal products is prohibited in the E.U.. The applicable laws at E.U. level and in the individual E.U. Member States also prohibit the direct-to-consumer advertising of prescription-only medicinal products. Violations of the rules governing the promotion of medicinal products in the E.U. could be penalized by administrative measures, fines and imprisonment. These laws may further limit or restrict the advertising and promotion of our products to the general public and may also impose limitations on our promotional activities with health care professionals.

Anti-Corruption Legislation

Our business activities outside of the U.S. are subject to anti-bribery or anti-corruption laws, regulations, industry self-regulation codes of conduct and physicians’ codes of professional conduct or rules of other countries in which we operate, including the U.K. Bribery Act of 2010.

Interactions between pharmaceutical companies and physicians are also governed by strict laws, regulations, industry self-regulation codes of conduct and physicians’ codes of professional conduct developed at both E.U. level and in the individual E.U. Member States. The provision of benefits or advantages to physicians to induce or encourage the prescription, recommendation, endorsement, purchase, supply, order or use of medicinal products is prohibited in the E.U.. Violation of these laws could result in substantial fines and imprisonment. Payments made to physicians in certain E.U. Member States also must be publicly disclosed. Moreover, agreements with physicians must often be the subject of prior notification and approval by the physician’s employer, his/her competent professional organization, and/or the competent authorities of the individual E.U. Member States. Failure to comply with these requirements could result in reputational risk, public reprimands, administrative penalties, fines or imprisonment.

Data Privacy and Protection

Data protection laws and regulations have been adopted at the E.U. level with related implementing laws in individual E.U. Member States which impose significant compliance obligations. For example, the E.U. General Data Protection Regulation, which entered into force in May 2018, imposes strict obligations and restrictions on the ability to collect, analyze and transfer personal data, including health data from clinical trials and adverse event reporting.

As the General Data Protection Regulation entered into force recently, guidance on implementation and compliance practices are still being developed, updated or otherwise revised. Although the General Data Protection Regulation is intended to provide for a high level of harmonization across the E.U., Member States may still implement certain variations, and data protection authorities may enforce the General Data Protection Regulation and national laws differently, which adds to the complexity of processing personal data in the E.U. Apart from exceptional circumstances, the E.U. General Data Protection Regulation prohibits the transfer of personal data to countries outside of the European Economic Area, that are not considered by the European Commission to provide an adequate level of data protection, including the U.S, and requires companies to take additional compliance measures to lawfully perform such transfers .

Furthermore, there is a trend towards the public disclosure of clinical trial data in the E.U. which also adds to the complexity of processing health data from clinical trials. Such public disclosure obligations are provided in the new E.U. Clinical Trials Regulation, EMA disclosure initiatives, and voluntary commitments by industry. Failing to comply with these obligations could lead to government enforcement actions and significant penalties against us, harm to our reputation, and adversely impact our business and operating results. The uncertainty regarding the interplay between different regulatory frameworks, such as the Clinical Trials Regulation and the General Data Protection Regulation, further adds to the complexity that we face with regard to data protection regulation.

Consequences of Non-Compliance

Failure to comply with applicable requirements may subject us to administrative or judicial sanctions, such as clinical holds, refusal of regulatory authorities to approve or authorize pending product applications, warning letters, product recalls, product seizures, total or partial suspension of production or distribution, injunctions, financial penalties and/or criminal prosecution.

Environmental Regulation

In connection with our research and development activities, we are subject to federal, state and local laws, rules, regulations and policies, both internationally and domestically, governing the use, generation, manufacture, storage, air

emission, effluent discharge, handling, treatment, transportation and disposal of certain materials, biological specimens and wastes and employee safety and health matters. Although we believe that we have complied with these laws, regulations and policies in all material respects and have not been required to take any significant action to correct any noncompliance, we may be required to incur significant costs to comply with environmental and health and safety regulations in the future. Our research and development involves the controlled use of hazardous materials, including, but not limited to, certain hazardous chemicals and radioactive materials. Although we believe that our safety procedures for handling and disposing of such materials comply with applicable law and regulations, the risk of accidental contamination or injury from these materials cannot be eliminated. In the event of such an accident, we could be held liable for any damages that result and any such liability not covered by insurance could exceed our resources. See the risk factor, “ We may be subject to claims relating to improper handling, storage or disposal of hazardous materials .” in Part I, Item 1A, “Risk Factors” of this Annual Report on Form 10-K for additional information regarding the risks and uncertainties we face due to the use of hazardous materials.

Employees

As of December 31, 2018, we employed 46 individuals in the U.S. In December 2018, we announced a restructuring plan to improve efficiencies and reduce costs within the Company, and as a result, a total of 21 positions will be eliminated approximately by the end of the first quarter 2019. Our employees do not have a collective bargaining agreement. We believe our relations with our employees are good.

Corporate Information

We were incorporated in the State of Washington in 1991. In May 2014, we changed our name from “Cell Therapeutics, Inc.” to “CTI BioPharma Corp.” We completed our initial public offering in 1997 and our shares are listed on The Nasdaq Capital Market under the symbol “CTIC”. On January 24, 2018, we changed our state of incorporation from the State of Washington to the State of Delaware. Our principal executive offices are located at 3101 Western Avenue, Suite 800, Seattle, Washington 98121. Our telephone number is (206) 282-7100. Our website address is located at www.ctibiopharma.com ; however, the information in, or that can be accessed through, our website is not part of this Annual Report on Form 10-K. We make available free of charge on our website our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and other filings pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, or the Exchange Act, as soon as reasonably practicable after each is electronically filed with, or furnished to, the SEC. The SEC maintains an Internet site that contains reports, proxy and information statements, and other information regarding reports that we file or furnish electronically with them at www.sec.gov .

This Annual Report on Form 10-K includes our trademarks and registered trademarks, including “CTI BioPharma,” and “PIXUVRI.” Each other trademark, trade name or service mark appearing in this Annual Report on Form 10-K belongs to its holder.

Item 1A. Risk Factors

This report contains forward-looking statements that involve risks and uncertainties. The occurrence of any of the risks described below and elsewhere in this document, including the risk that our actual results may differ materially from those anticipated in these forward-looking statements, could materially adversely affect our business, financial condition, liquidity, operating results or prospects and the trading price of our securities. Additional risks and uncertainties that we do not presently know or that we currently deem immaterial may also harm our business, financial condition, operating results and prospects and the trading price of our securities.

Risks Related to Our Business

We expect to continue to incur net losses, and we may never achieve profitability.

We were incorporated in 1991 and have incurred a net operating loss every year since our formation. As of December 31, 2018 , we had an accumulated deficit of $2.2 billion , and we expect to continue to incur net losses. As part of our business plan, we will need to continue to conduct research, development, testing and regulatory compliance activities with respect to our compounds and ensure the procurement of manufacturing and drug supply services, the costs of which, together with projected general and administrative expenses, is expected to result in operating losses for the foreseeable future. There can be no assurances that we will ever achieve profitability.

Our prospects are dependent on the successful development, regulatory approval and commercialization of pacritinib.

We have resumed primary responsibility for the development and commercialization of pacritinib as a result of the termination of the Pacritinib License Agreement in October 2016, and we are no longer eligible to receive cost sharing or milestone payments for pacritinib’s development from Baxalta. Because obtaining regulatory approval requires substantial time, effort and financial resources, the termination of this collaborative partnership could negatively impact our ability to successfully develop and commercialize pacritinib. Even if we are successful in developing and obtaining regulatory approval for pacritinib, it would face competition from currently approved compounds and potentially other candidates being developed by our competitors. We currently have no commitments or arrangements for any additional financing to fund the development and commercial launch of pacritinib, and we may need to seek additional funding, which may not be available or may not be available on favorable terms. We could also seek another collaborative partnership for the development and commercialization of pacritinib, which may not be available on reasonable terms or at all. If we partner pacritinib, we may have to relinquish valuable economic rights and would potentially forgo additional economic benefits that could be realized if we continued the development and commercialization activities alone. Even if pacritinib receives approval from the FDA, EMA or other regulatory authorities, we would need to incur significant expenses to support the commercialization and launch of pacritinib, which investment may never be realized if sales are insufficient. As our primary product candidate under development, our prospects are substantially dependent upon the successful development, approval and commercialization of pacritinib. If we fail to obtain regulatory approval and successfully commercialize pacritinib, our business would be materially and adversely impacted as we have no other product candidates in active clinical development.

We face direct and intense competition from our competitors in the biotechnology and pharmaceutical industries, and we may not compete successfully against them.

Competition in the oncology market is intense and is accentuated by the rapid pace of technological and product development. We anticipate that we will face increased competition in the future as new companies enter the market. Our competitors in the U.S. and elsewhere are numerous and include, among others, major multinational pharmaceutical companies, specialized biotechnology companies and universities and other research institutions. Specifically:

• If we are successful in bringing pacritinib to market, pacritinib will face competition from the currently approved JAK1/JAK2 inhibitor, Jakafi® / Jakavi® and may face competition from fedratinib, which Celgene has announced is being prepared for an NDA submission in myelofibrosis. Celgene announced their pending acquisition by Bristol-Myers Squibb in January 2019. Pacritinib may also face competition from momelotinib, which Sierra Oncology acquired from Gilead and has announced will likely require an additional clinical study to consolidate data across the momelotinib development program.

In addition to the specific competitive factors discussed above, new anti-cancer drugs that may be under development or developed and marketed in the future could compete with our various compounds.

Many of our competitors, particularly multinational pharmaceutical companies, either alone or together with their collaborators, have substantially greater financial and technical resources and substantially larger development and marketing teams than us, as well as significantly greater experience than we do in developing, commercializing, manufacturing, marketing and selling products. As a result, products of our competitors might come to market sooner or might prove to be more effective, less expensive, have fewer side effects or be easier to administer than ours. In any such case, sales of any potential future product would likely suffer and we might never recoup the significant investments we have made and will continue to make to develop and market these compounds.

Even if our compounds are successful in clinical trials and receive regulatory approvals, we or our collaboration partners may not be able to successfully commercialize them.

The development and ongoing clinical trials for our compounds may not be successful and, even if they are, the resulting products may never be successfully developed into commercial products. Even if we are successful in our clinical trials and in obtaining other regulatory approvals, the respective products may not reach or remain in the market for a number of reasons including:

• they may be found ineffective or cause harmful side effects;

• they may be difficult to manufacture on a scale necessary for commercialization;

• they may experience excessive product loss due to contamination, equipment failure, inadequate transportation or storage, improper installation or operation of equipment, vendor or operator error, inconsistency in yields or variability in product characteristics;

• they may be uneconomical to produce;

• political and legislative changes may make the commercialization of our product candidates more difficult;

• we may fail to obtain reimbursement approvals or pricing that is cost effective for patients as compared to other available forms of treatment or that covers the cost of production and other expenses;

• they may not compete effectively with existing or future alternatives;

• we may be unable to develop commercial operations and to sell marketing rights;

• they may fail to achieve market acceptance; or

• we may be precluded from commercialization of a product due to proprietary rights of third parties.

Uncertainty and speculation continue regarding the possible repeal of all or a portion of the Patient Protection and Affordable Care Act through legislative action, as well as possible changes to the regulations implemented under the Patient Protection and Affordable Care Act by the Department of Health and Human Services. The uncertainty this causes for the healthcare industry could also adversely affect the commercialization of our products. If we fail to commercialize products or if our future products do not achieve significant market acceptance, we will not likely generate significant revenues or become profitable.

We will need to raise additional funds to operate our business, but additional funds may not be available on acceptable terms, or at all. Any inability to raise required capital when needed could harm our liquidity, financial condition, business, operating results and prospects.

We have substantial operating expenses associated with the development of our compounds, and we have significant contractual payment obligations. Our available cash, cash equivalents and short-term investments were $67.0 million as of December 31, 2018 . In February 2018, we received approximately $64.2 million in net proceeds from an offering of common stock. In addition, we received a $10.0 million milestone payment from Teva Pharmaceutical Industries Ltd. in February 2019 relating to the achievement of a worldwide net sales milestone of TRISENOX in December 2018. While we believe that our present financial resources will be sufficient to fund our operations through the second quarter of 2020, cash forecasts and capital requirements are subject to change as a result of a variety of risks and uncertainties. Developments in and expenses associated with our clinical trials and other research and development activities, including the resumption of primary responsibilities for the development and commercialization of pacritinib as a result of the termination of the

Pacritinib License Agreement in October 2016, acquisitions of compounds or other assets, regulatory approval developments, our ability to consummate appropriate collaborations for development and commercialization activities, our ability to reach milestones triggering payments under applicable contractual arrangements, receive the associated payments, litigation and other disputes, competitive market developments and other unplanned expenses or business developments may consume capital resources earlier than planned. Due to these and other factors, any forecast for the period for which we will have sufficient resources to fund our operations, as well as any other operational or business projection we have disclosed, or may, from time to time, disclose, may fail.

• our ability to raise capital through the issuance of additional shares of our common stock or convertible securities is restricted by the limited number of our residual authorized shares, the potential difficulty of obtaining stockholder approval to increase authorized shares and the restrictive covenants under our secured term loan agreement;

• issuance of equity-based securities will dilute the proportionate ownership of existing stockholders;

• our ability to obtain further funds from any potential loan arrangements is limited by our existing loan and security agreement;

• certain financing arrangements may require us to relinquish rights to various assets and/or impose more restrictive terms than any of our existing or past arrangements; and

• we may be required to meet additional regulatory requirements, and we may be subject to certain contractual limitations, which may increase our costs and harm our ability to obtain funding.

For these and other reasons, additional funding may not be available on favorable terms or at all. If we raise additional funds by issuing equity or-equity linked securities, including pursuant to our at-the-market offering facility with Cowen, our stockholders may experience dilution. If we fail to obtain additional capital when needed, we may be required to delay, scale back or eliminate some or all of our research and development programs, reduce our selling, general and administrative expenses, be unable to attract and retain highly qualified personnel, refrain from making our contractually required payments when due (including debt payments) and/or be forced to cease operations, liquidate our assets and possibly seek bankruptcy protection. Any of these consequences could harm our business, financial condition, operating results and prospects.

We may never be able to generate significant product revenues.

We anticipate that, for at least the next several years, our ability to generate significant revenues and become profitable will be substantially dependent on our ability to obtain regulatory approval for and successfully commercialize pacritinib. If we are unable to successfully commercialize our development stage or approved products as planned, our business, financial condition, operating results and prospects could be harmed.

We are dependent on third-party service providers for a number of critical operational activities including, in particular, for the manufacture, testing and distribution of our compounds and associated supply chain operations, as well as for clinical trial activities. Any failure or delay in these undertakings by third parties could harm our business.

Our business is dependent on the performance by third parties of their responsibilities under contractual relationships. In particular, we rely heavily on third parties for the manufacture and testing of our compounds. We do not have internal analytical laboratory or manufacturing facilities to allow the testing or production of compounds in compliance with GLP and cGMP. As a result, we rely on third parties to supply us in a timely manner with manufactured products/product candidates. We may not be able to adequately manage and oversee the manufacturers we choose, they may not perform as agreed or they may terminate their agreements with us. In particular, we depend on third-party manufacturers to conduct their operations in compliance with GLP and cGMP or similar standards imposed by the U.S. and/or applicable foreign regulatory authorities, including the FDA and EMA. Any of these regulatory authorities may take action against a contract

manufacturer who violates GLP and cGMP. Failure of our manufacturers to comply with FDA, EMA or other applicable regulations may cause us to curtail or stop the manufacture of such products until we obtain regulatory compliance.

We may not be able to obtain sufficient quantities of our compounds if we are unable to secure manufacturers when needed, or if our designated manufacturers do not have the capacity or otherwise fail to manufacture compounds according to our schedule and specifications or fail to comply with cGMP regulations. In particular, in connection with the transition of the manufacturing of pacritinib drug supply to successor vendors, we could face logistical, scaling or other challenges that may adversely affect supply. Furthermore, in order to ultimately obtain and maintain applicable regulatory approvals, any manufacturers we utilize are required to consistently produce the respective compounds in commercial quantities and of specified quality or execute fill-finish services on a repeated basis and document their ability to do so, which is referred to as process validation. In order to obtain and maintain regulatory approval of a compound, the applicable regulatory authority must consider the result of the applicable process validation to be satisfactory and must otherwise approve of the manufacturing process. Even if our compound manufacturing processes obtain regulatory approval and sufficient supply is available to complete clinical trials necessary for regulatory approval, there are no guarantees we will be able to supply the quantities necessary to effect a commercial launch of the applicable drug, or once launched, to satisfy ongoing demand. Any compound shortage could also impair our ability to deliver contractually required supply quantities to applicable collaborators, as well as to complete any additional planned clinical trials.

We also rely on third-party service providers for certain warehousing, transportation, sales, order processing, distribution and cash collection services. With regard to the distribution of our compounds, we depend on third-party distributors to act in accordance with GDP, and the distribution process and facilities are subject to continuing regulation by applicable regulatory authorities with respect to the distribution and storage of products.

In addition, we depend on medical institutions and CROs (together with their respective agents) to conduct clinical trials and associated activities in compliance with GCP and in accordance with our timelines, expectations and requirements. To the extent any such third parties are delayed in achieving or fail to meet our clinical trial enrollment expectations, fail to conduct our trials in accordance with GCP or study protocol or otherwise take actions outside of our control or without our consent, our business may be harmed. Furthermore, we conduct clinical trials in foreign countries, subjecting us to additional risks and challenges, including, in particular, as a result of the engagement of foreign medical institutions and foreign CROs, who may be less experienced with regard to regulatory matters applicable to us and may have different standards of medical care.

With regard to certain of the foregoing clinical trial operations and stages in the manufacturing and distribution chain of our compounds, we rely on single vendors. In addition, in the event pacritinib is approved, we will initially have only one commercial supplier for pacritinib. We may in the future seek to qualify an additional manufacturer of pacritinib, but the process for qualifying a manufacturer, and seeking prior regulatory approval for a new manufacturer, can be lengthy and may not occur on a timely basis or at all. The use of single vendors for core operational activities, such as clinical trial operations, manufacturing and distribution, and the resulting lack of diversification, expose us to the risk of a material interruption in service related to these single, outside vendors. As a result, our exposure to this concentration risk could harm our business.

Although we monitor the compliance of our third-party service providers performing the aforementioned services, we cannot be certain that such service providers will consistently comply with applicable regulatory requirements or that they will otherwise timely satisfy their obligations to us. Any such failure and/or any failure by us to monitor their services and to plan for and manage our short and long term requirements underlying such services could result in shortage of the compound, delays in or cessation of clinical trials, failure to obtain or revocation of product approvals or authorizations, product recalls, withdrawal or seizure of products, suspension of an applicable wholesale distribution authorization and/or distribution of products, operating restrictions, injunctions, suspension of licenses, other administrative or judicial sanctions (including civil penalties and/or criminal prosecution) and/or unanticipated related expenditures to resolve shortcomings. Such consequences could have a significant impact on our business, financial condition, operating results or prospects.

We are party to a loan and security agreement that contains operating and financial covenants that may restrict our business and financing activities and we may be required to repay the outstanding indebtedness in an event of default, which could have a materially adverse effect on our business.

In November 2017, we entered into a loan and security agreement with Silicon Valley Bank, which was amended in May 2018, the proceeds of which were partially used to repay in full all outstanding indebtedness under our loan and security agreement with Hercules Technology Growth Capital.

Borrowings under this loan and security agreement are secured by substantially all of our assets except intellectual property and subject to certain other exceptions. The loan and security agreement restricts our ability, among other things, to:

• sell, transfer or otherwise dispose of any of our business assets or property, subject to limited exceptions;

• make material changes to our business or management;

• enter into transactions resulting in significant changes to the voting control of our stock;

• make certain changes to our organizational structure;

• consolidate or merge with other entities or acquire other entities;

• incur additional indebtedness or create encumbrances on our assets;

• pay dividends, other than dividends paid solely in our common shares, or make distributions on and, in certain cases, repurchase our capital stock;

• enter into certain transactions with our affiliates;

• repay subordinated indebtedness; or

• make certain investments.

In addition, we are required under our loan agreement and security agreement to comply with various affirmative covenants. The covenants and restrictions and obligations in our loan and security agreement, as well as any future financing agreements that we may enter into, may restrict our ability to finance our operations, engage in business activities or expand or fully pursue our business strategies. Our ability to comply with these covenants may be affected by events beyond our control, and we may not be able to meet those covenants. A breach of any of these covenants could result in a default under the loan and security agreement, which could cause all of the outstanding indebtedness under the facility to become immediately due and payable and eliminate our eligibility to receive additional loans under the agreement.

If we are unable to generate sufficient cash available to repay our debt obligations when they become due and payable, either when they mature, or in the event of a default, we may not be able to obtain additional debt or equity financing on favorable terms, if at all, which may negatively impact our business operations and financial condition.

We will incur a variety of costs for, and may never realize the anticipated benefits of, acquisitions, collaborations or other strategic transactions.

We evaluate and undertake acquisitions, collaborations and other strategic transactions from time to time. The process of negotiating these transactions, as well as integrating any acquisitions and implementing any strategic alliances, may result in operating difficulties and expenditures. In addition, these transactions may require significant management attention that would otherwise be available for ongoing development of our business, whether or not any such transaction is ever consummated. These undertakings could also result in potentially dilutive issuances of equity securities, the incurrence of debt, contingent liabilities and/or amortization expenses related to intangible assets, and we may never realize the anticipated benefits. In addition, following the consummation of a transaction, our results of operations and the market price of our common stock may be affected by factors different from those that affected our results of operations and the market price of our common stock prior to such acquisition. Any of the foregoing consequences resulting from transactions of the type described above could harm our business, financial condition, operating results or prospects.

If we are unable to recruit, retain, integrate and motivate senior management, other key personnel and directors, or if such persons are unable to perform effectively, our business could suffer.

Our future success depends, in part, on our ability to continue to attract and retain senior management, other key personnel and directors to enable the execution of our business plan and to identify and pursue new opportunities. Additionally, our productivity and the quality of our operations are dependent on our ability to integrate and train our new personnel quickly and effectively. In February 2017, we announced the appointment of Adam Craig, M.D., Ph.D., as President and Chief Executive Officer effective March 2017, and also in September 2017, we announced the appointment of Bruce J. Seeley as Executive Vice President, Chief Operating Officer and David H. Kirske as Chief Financial Officer. In

December 2018, we announced a restructuring plan to improve efficiencies and reduce costs within the organization, which resulted in workforce reductions impacting approximately half of the total number of our employees immediately prior to the restructuring. These leadership transitions, management changes and the recent reduction in force can be difficult to manage and may create uncertainty or disruption to our business, increase the likelihood of turnover in our other officers and employees and negatively impact our ability to recruit.

Directors and management of publicly traded corporations are increasingly concerned with the extent of their personal exposure to lawsuits and stockholder claims, as well as governmental, creditor and other claims that may be made against them. Due to these and other reasons, such persons are also becoming increasingly concerned with the availability of directors and officers liability insurance to pay on a timely basis the costs incurred in defending such claims. We currently carry directors and officers liability insurance. However, directors and officers liability insurance is expensive and can be difficult to obtain, particularly for companies like ours that have had a history of litigation. If we are unable to continue to provide directors and officers sufficient liability insurance at affordable rates or at all, or if directors and officers perceive our ability to do so in the future to be limited, it may become increasingly more difficult to attract and retain management and qualified directors to serve on our Board of Directors.

The loss of the services of senior management, other key personnel or directors and/or the inability to timely attract or integrate such persons could significantly delay or prevent the achievement of our development and strategic objectives and may adversely affect our business, financial condition and operating results.

If we are unable to in-license or acquire additional product candidates, our future product portfolio and potential profitability could be harmed.

One component of our business strategy is the in-licensing and acquisition of drug compounds developed by other pharmaceutical and biotechnology companies or academic research laboratories, such as pacritinib. Competition for new promising compounds and commercial products can be intense. If we are not able to identify future in-licensing or acquisition opportunities and enter into arrangements on acceptable terms, our future product portfolio and potential profitability could be harmed.

We may owe additional amounts for VAT related to our operations in Europe.

Our European operations are subject to the VAT which is usually applied to all goods and services purchased and sold throughout Europe. We historically carried out research and development activities in Italy and incurred value added tax, or VAT, from Italian suppliers on the acquisition of goods and services in Italy. This VAT should be considered as an Input VAT credit. We treated the majority of our sales made in Italy without output VAT (on the basis that the supplies should be considered outside the scope of Italian VAT). This resulted in the value of input VAT exceeding the value of output VAT, and accordingly we submitted a refund claim for the VAT. The Italian Tax Authority, or the ITA, has challenged the treatment of the sales transactions and claimed that the sales transactions made by us should have been subject to output VAT. Our Italian VAT receivable was $4.5 million and $4.8 million as of December 31, 2018 and 2017, respectively.

On April 14, 2009, December 21, 2009 and June 25, 2010, the ITA issued notices of assessment to CTI (Europe) based on the ITA’s audit of CTI (Europe)’s VAT returns for the years 2003, 2005, 2006 and 2007. The ITA audits concluded that CTI (Europe) did not collect and remit VAT on certain invoices issued to non-Italian clients for services performed by CTI (Europe). The assessments, including interest and penalties, for the years 2003, 2006 and 2007 are €0.6 million, €2.7 million and €0.9 million, respectively. While we are defending ourselves against the assessments both on procedural grounds and on the merits of the case, there can be no assurances that we will be successful in such defense. The 2005 VAT assessment was decided in favor of the Company by the Italian Supreme Court, with no further potential liabilities for the Company. Further information pertaining to these cases can be found in Part II, Item 8, "Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements - Note 18. Commitments and Contingencies " and is incorporated by reference herein. If the final decision of the Italian Supreme Court is unfavorable to us, or if, in the interim, the ITA were to make a demand for payment and we were to be unsuccessful in suspending collection efforts, we may be requested to pay to the ITA an amount up to €4.2 million, or approximately $4.8 million converted using the currency exchange rate as of December 31, 2018 , including interest and penalties for the period lapsed between the date in which the assessments were issued and the date of effective payment.

We are currently subject to certain regulatory and legal proceedings, and may in the future be subject to additional proceedings and/or allegations of wrong-doing, which could harm our financial condition and operating results.

We are currently, and may in the future be, subject to regulatory matters and legal claims, including possible securities, derivative, consumer protection and other types of proceedings pursued by individuals, entities or regulatory

bodies. See Part II, Item 8, "Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements - Note 18. Commitments and Contingencies ," for more information regarding the regulatory matters and legal claims in which we are currently involved. Additionally, we were previously required to supply documents in response to a subpoena from the SEC in connection with an investigation into potential federal securities law violations; however, in August 2018, the SEC staff sent a letter stating that it had concluded its investigation of us, and, based on information it had as of that date, it did not intend to recommend an enforcement action against us. Litigation and regulatory proceedings are subject to inherent uncertainties, and we have had and may in the future have unfavorable rulings and settlements. Adverse outcomes may result in significant monetary damages and penalties or injunctive relief against us. It is possible that our financial condition and operating results could be harmed in any period in which the effect of an unfavorable final outcome becomes probable and reasonably estimable. If an unfavorable ruling were to occur in any of the legal proceedings we are or may be subject to, our business, financial condition, operating results and prospects could be harmed. The ultimate outcome of litigation and other claims is subject to inherent uncertainties, and our view of these matters may change in the future.

We cannot predict with certainty the eventual outcome of any litigation or regulatory proceedings we are or may be party to in the future. In addition, negative publicity resulting from any allegations of wrong-doing could harm our business, regardless of whether the allegations are valid or whether there is a finding of liability. Furthermore, we may have to incur substantial time and expense in connection with such lawsuits and management’s attention and resources could be diverted from operating our business as we respond to the litigation. Our insurance is subject to high deductibles and there is no guarantee that the insurance will cover any specific claim that we currently face or may face in the future, or that it will be adequate to cover all potential liabilities and damages. In the event of negative publicity resulting from allegations of wrong-doing and/or an adverse outcome under any currently pending or future lawsuit, our business could be materially harmed.

A variety of risks associated with international operations could materially adversely affect our business.

If we engage in significant cross-border activities, we will be subject to risks related to international operations, including:


•	different regulatory requirements for initiating clinical trials and maintaining approval of drugs in foreign countries;


•	reduced protection for intellectual property rights in certain countries;


•	unexpected changes in tariffs, trade barriers and regulatory requirements;


•	economic weakness, including inflation, political instability or open conflict in particular foreign economies and markets;


•	compliance with tax, employment, immigration and labor laws for employees living or traveling abroad;


•	foreign currency fluctuations, which could result in increased operating expenses and reduced revenue, and other obligations of doing business in another country;


•	workforce uncertainty in countries where labor unrest is more common than in North America;


•	likelihood of potential or actual violations of domestic and international anti-corruption laws, such as the U.S. Foreign Corrupt Practices Act and the U.K. Bribery Act, or of U.S. and international export control and sanctions regulations, which likelihood may increase with an increase of operations in foreign jurisdictions;


•	tighter restrictions on privacy and the collection and use of data, including genetic material, may apply in jurisdictions outside of North America; and


•	business interruptions resulting from geopolitical actions, including war and terrorism, or natural disasters including earthquakes, typhoons, floods and fires.

If any of these issues were to occur, our business could be materially harmed.

Our net operating losses may not be available to reduce future income tax liability.

We have substantial tax loss carryforwards for U.S. federal income tax purposes, but our ability to use such carryforwards to offset future income or tax liability is limited under section 382 of the Internal Revenue Code of 1986, as

amended, as a result of prior changes in the stock ownership of our company. Moreover, future changes in the ownership of our stock, including those resulting from issuance of shares of our common stock upon exercise of outstanding warrants, may further limit our ability to use our net operating losses.

Changes in tax laws or regulations that are applied adversely to us or our customers may have a material adverse effect on our business, cash flow, financial condition or results of operations.

New income, sales, use or other tax laws, statutes, rules, regulations or ordinances could be enacted at any time, which could affect the tax treatment of our domestic and foreign earnings. Any new taxes could adversely affect our domestic and international business operations, and our business and financial performance. Further, existing tax laws, statutes, rules, regulations or ordinances could be interpreted, changed, modified or applied adversely to us. For example, the United States signed into law, on December 22, 2017, tax reform legislation commonly referred to as the U.S. Tax Cuts and Jobs Act of 2017, or the 2017 Tax Act. The 2017 Tax Act significantly revises the U.S. corporate income tax by, among other things, lowering the statutory corporate tax rate from 34% to 21%, eliminating certain deductions, imposing a mandatory one-time tax on accumulated earnings of foreign subsidiaries, introducing new tax regimes, and changing how foreign earnings are subject to U.S. tax. The 2017 Tax Act also enhances and extends through 2026 the option to claim accelerated depreciation deductions on qualified property. We have completed our determination of the accounting implications of the 2017 Tax Act. The rate adjustment to deferred tax assets, a discrete item for the quarter, is fully offset by a decrease in the valuation allowance: there is therefore no rate impact to us. In addition, there is no impact to current or deferred taxes related to the one-time deemed repatriation, as our foreign subsidiaries do not have cumulative positive earnings and profits. We are continuing to evaluate the impact of the 2017 Tax Act as further guidance is released. The foregoing items could have a material adverse effect on our business, cash flow, financial condition or results of operations.

We could be subject to additional income tax liabilities.

We are subject to income taxes in the United States and certain foreign jurisdictions. We use significant judgment in evaluating our worldwide income-tax provision. During the ordinary course of business, we conduct many transactions for which the ultimate tax determination is uncertain. For example, our effective tax rates could be adversely affected by earnings being lower than anticipated in countries where we have lower statutory rates and higher than anticipated in countries where we have higher statutory rates, by changes in currency exchange rates, by changes in the valuation of our deferred tax assets and liabilities or by changes in the relevant tax, accounting and other laws, regulations, principles and interpretations. We are subject to audit in various jurisdictions, and such jurisdictions may assess additional income tax against us. Although we believe our tax estimates are reasonable, the final determination of tax audits and any related litigation could be materially different from our historical income-tax provisions and accruals. The results of an audit or litigation could have a material effect on our operating results or cash flows in the period or periods for which that determination is made.

Our international operations subject us to potential adverse tax consequences.

We generally conduct our international operations through wholly owned subsidiaries and report our taxable income in various jurisdictions worldwide based upon our business operations in those jurisdictions. Our intercompany relationships are subject to complex transfer pricing regulations administered by taxing authorities in various jurisdictions. The relevant taxing authorities may disagree with our determinations as to the income and expenses attributable to specific jurisdictions. If such a disagreement were to occur, and our position was not sustained, we could be required to pay additional taxes, interest and penalties, which could result in one-time tax charges, higher effective tax rates, reduced cash flows and lower overall profitability of our operations. We believe that our financial statements reflect adequate reserves to cover such a contingency, but there can be no assurances in that regard.

Due to the fact that we have a European subsidiary conducting operations, together with the fact that we are party to certain contractual arrangements denoting monetary amounts in foreign currencies, we are subject to risk regarding currency exchange rate fluctuations.

We are exposed to risks associated with the translation of euro-denominated financial results and accounts into U.S. dollars for financial reporting purposes. The carrying value of the assets and liabilities, as well as the reported amounts of revenues and expenses, in our European subsidiary will be affected by fluctuations in the value of the U.S. dollar as compared to the euro. Any expansion of our commercial operations in Europe may increase our exposure to fluctuations in foreign currency exchange rates. In addition, certain of our contractual arrangements, denote monetary amounts in foreign currencies, and consequently, the ultimate financial impact to us from a U.S. dollar perspective is subject to significant uncertainty. Furthermore, the referendum in the United Kingdom in June 2016, in which the majority of voters voted in

favor of an exit from the European Union has resulted in increased volatility in the global financial markets and caused severe volatility in global currency exchange rate fluctuations that resulted in the strengthening of the U.S. dollar against the euro. Changes in the value of the U.S. dollar as compared to foreign currencies (in particular, the euro) might have an adverse effect on our reported operating results and financial condition.

We may be unable to obtain the raw materials necessary to produce a particular product or product candidate.

We may not be able to purchase the materials necessary to produce a particular product or product candidate in adequate volume and quality. If any raw material required to produce a product or product candidate is insufficient in quantity or quality, if a supplier fails to deliver in a timely fashion or at all or if these relationships terminate, we may not be able to qualify and obtain a sufficient supply from alternate sources on acceptable terms, or at all.

Because there is a risk of product liability associated with our compounds, we face potential difficulties in obtaining insurance, and if product liability lawsuits were to be successfully brought against us, our business may be harmed.

Our business exposes us to potential product liability risks inherent in the testing, manufacturing, marketing and sale of human pharmaceutical products. If our insurance covering a compound is not maintained on acceptable terms or at all, we might not have adequate coverage against potential liabilities. Our inability to obtain sufficient insurance coverage at an acceptable cost or otherwise to protect against potential product liability claims could prevent or limit the commercialization of any products we develop. A successful product liability claim could also exceed our insurance coverage and could harm our financial condition and operating results.

The illegal distribution and sale by third parties of counterfeit versions of a product or stolen product could have a negative impact on our reputation and business.

Third parties might illegally distribute and sell counterfeit or unfit versions of a product that do not meet our rigorous manufacturing and testing standards. A patient who receives a counterfeit or unfit product may be at risk for a number of dangerous health consequences. Our reputation and business could suffer harm as a result of counterfeit or unfit product sold under our brand name. In addition, thefts of inventory at warehouses, plants or while in-transit, which are not properly stored and which are sold through unauthorized channels, could adversely impact patient safety, our reputation and our business.

We may be subject to claims relating to improper handling, storage or disposal of hazardous materials.

Our research and development activities involve the controlled use of hazardous materials, chemicals and various radioactive compounds. We are subject to federal, state and local laws and regulations, both internationally and domestically, governing the use, manufacture, storage, handlings, treatment, transportation and disposal of such materials and certain waste products and employee safety and health matters. Although we believe that our safety procedures for handling and disposing of such materials comply with applicable law and regulations, the risk of accidental contamination or injury from these materials cannot be eliminated completely. In the event of such an accident, we could be held liable for any damages that result and any such liability not covered by insurance could exceed our resources. Compliance with environmental, safety and health laws and regulations may be expensive, and current or future environmental regulations may impair our research, development or production efforts.

We depend on sophisticated information technology systems to operate our business and a cyber-attack or other breach of these systems could have a material adverse effect on our business.

We rely on information technology systems to process, transmit and store electronic information in our day-to-day operations. The size and complexity of our information technology systems makes them vulnerable to a cyber-attack, malicious intrusion, breakdown, destruction, loss of data privacy or other significant disruption. Any such successful attacks could result in the theft of intellectual property or other misappropriation of assets, or otherwise compromise our confidential or proprietary information and disrupt our operations. Cyber-attacks are becoming more sophisticated and frequent. We have invested in our systems and the protection of our data to reduce the risk of an intrusion or interruption, and we monitor our systems on an ongoing basis for any current or potential threats. We anticipate needing to make further investments in protecting against these matters going forward. There can be no assurance that these measures and efforts will prevent future interruptions or breakdowns. If we fail to maintain or protect our information technology systems and data integrity effectively or fail to anticipate, plan for or manage significant disruptions to these systems, we could have difficulty preventing, detecting and controlling fraud, have disputes with customers, physicians and other health care professionals, have regulatory sanctions or penalties imposed, have increases in operating expenses, incur expenses or lose revenues or suffer other adverse consequences,

any of which could have a material adverse effect on our business, results of operations, financial condition, prospects and cash flows. Our contract manufacturers and other service providers face similar risks with respect to interruptions, breakdowns, and other security incidents, and any incidents suffered by our service providers can result in similar impacts upon our business, results of operations, financial condition, prospects and cash flows.

While we maintain insurance, our insurance may be insufficient to cover all liabilities incurred by any security incidents. We also cannot be certain that our insurance coverage will be adequate for liabilities actually incurred, that insurance will continue to be available to us on economically reasonable terms, or at all, or that any insurer will not deny coverage as to any future claim. The successful assertion of one or more large claims against us that exceed available insurance coverage, or the occurrence of changes in our insurance policies, including premium increases or the imposition of large deductible or co-insurance requirements, could have a material adverse effect on our business, including our financial condition, operating results, and reputation.

We or the third parties upon whom we depend may be adversely affected by earthquakes or other natural disasters and our business continuity and disaster recovery plans may not adequately protect us from serious disaster.

Our headquarters are located in Seattle, Washington. We are vulnerable to natural disasters such as earthquakes that could disrupt our operations. If a natural disaster, power outage, fire or other event occurred that prevented us from using all or a significant portion of our headquarters, that damaged critical infrastructure, such as the manufacturing facilities of our third-party contract manufacturers, or that otherwise disrupted operations, it may be difficult or, in certain cases, impossible for us to continue our business for a substantial period of time. We may not carry sufficient business interruption insurance to compensate us for all losses that may occur. The disaster recovery and business continuity plans we have in place may not be adequate in the event of a serious disaster or similar event. We may incur substantial expenses as a result of a natural disaster or earthquake, which could have a material adverse effect on our business. In addition, we may lose samples or other valuable data. The occurrence of any of the forgoing could have a material adverse effect on our business.

We recently implemented a restructuring plan, which we cannot guarantee will achieve its intended benefits .

In December 2018, we announced a restructuring plan to improve our efficiencies and reduce costs. We may incur significant costs to implement this restructuring plan, and doing so may subject us to litigation risks and expenses. Moreover, while we currently expect to realize cost savings of approximately $20 million primarily associated with reduced employee costs over the next three years as a result of our restructuring plan, there can be no assurance that the restructuring plan will achieve its intended benefits. In addition, our restructuring plan may have other consequences, such as attrition beyond our planned reduction in workforce, a negative effect on employee morale and productivity or our ability to attract highly skilled employees. As a result, our restructuring plan and its implementation could have a material adverse effect on our business, results of operations, financial condition, prospects and cash flows.

Risks Related to the Development, Clinical Testing and Regulatory Approval of Our Product Candidates

The regulatory approval process for pacritinib has been subject to delay and uncertainty associated with clinical holds placed on pacritinib clinical trials in February 2016 and the withdrawal of the MAA in Europe. While the full clinical hold on pacritinib trials has been removed, our dose-exploration trial for pacritinib and further registration clinical trials for pacritinib could be subject to further delay or we could be prevented from further studying pacritinib or seeking its commercialization.

On February 8, 2016, the FDA notified us that a full clinical hold had been placed on pacritinib clinical studies. A full clinical hold is a suspension of the clinical work requested under an IND application. Under the full clinical hold, all patients on pacritinib at the time of the hold order were required to discontinue pacritinib immediately, and no new patients could be enrolled or start pacritinib as initial or crossover treatment. In January 2017, the full clinical hold was removed following review of our complete response submission which included, among other items, final Clinical Study Reports for both PERSIST-1 and 2 trials and FDA agreement on a proposed study design for a dose-exploration clinical trial. In July 2017, we enrolled the first patient in the PAC203 trial, which is evaluating the safety and efficacy of three dosing schedules over 24 weeks in patients with myelofibrosis previously treated with ruxolitinib. In October 2018, we announced the continuation of the PAC203 Phase 2 study without modification, following a planned second interim data review by the independent data monitoring committee, or IDMC. Following meetings with the FDA and EMA and in consultation with the IDMC, we eliminated the interim efficacy analysis and focused the second IDMC review, and all subsequent data reviews, on an assessment of safety. A complete dataset from the fully enrolled study (including efficacy, safety, pharmacokinetic and pharmacodynamic data) will be used to determine the optimal dose of pacritinib for further clinical development, as

requested by the FDA. Based on FDA feedback received at a July Type B meeting, we plan to conduct a randomized Phase 3 study of pacritinib in patients with myelofibrosis. The dosing for the Phase 3 study will be determined using the results of the PAC203 study. We completed a Type C meeting with the FDA in December 2018 and received input from the FDA on key elements of the design of the new randomized Phase 3 study of pacritinib in adult patients with myelofibrosis (primary myelofibrosis, post-polycythemia vera myelofibrosis, or post-essential thrombocythemia myelofibrosis) and who have severe thrombocytopenia (platelet counts of less than 50,000 per microliter). Before commencing the Phase 3 study, we plan to seek FDA advice on the proposed final protocol design and seek scientific advice from European countries to support alignment on the Phase 3 study design. Although the IDMC completed its planned third interim safety review in January 2019 and recommended that the PAC203 study continue without modification, we cannot be certain that the proposed new Phase 3 study will be sufficient for regulatory approval or that the full data from the PAC203 study will not raise additional questions from the FDA or identify an optimal dose or dosing regimen of pacritinib that can be used in the planned Phase 3 registration study, and the FDA may again request additional information or require us to pursue new clinical safety trials with changes to, among other things, protocol, study design or sample size.

Further, in the EMA’s initial assessment report regarding our original MAA, the CHMP determined that the current application was not approvable because of major objections in the areas of efficacy, safety (hematological and cardiovascular toxicity) and the overall risk-benefit profile of pacritinib. After the filing of the original MAA, data from the second phase 3 trial of pacritinib, PERSIST-2, were reported. Following discussions with the EMA about how PERSIST-2 data might address the major objections and how to integrate the data into the current application, we withdrew the original MAA, and submitted a new application for the treatment of patients with myelofibrosis who have thrombocytopenia (platelet counts less than 100,000 per microliter). The new MAA was validated by the EMA in July 2017; however, we withdrew the MAA in February 2019 following interactions with CHMP, during which we learned that CHMP was likely to formally adopt a negative opinion in its evaluation of the application. CHMP indicated that the risk-benefit profile for pacritinib for the intended indication has not been sufficiently established with the clinical data available to date. For additional information regarding the status of our clinical development efforts, see Part I, Item 2, "Management’s Discussion and Analysis of Financial Condition and Results of Operations - Overview."

The submission of new marketing applications, complying with any additional requests for information from the FDA or EMA or making any changes to protocol, study design, or sample size may be time-consuming, expensive and delay or prevent our ability to continue to study pacritinib. If we are unable to address any further recommendations, requests, or objections in a manner satisfactory to the FDA or EMA, as applicable, in a timely manner, or at all, we could be delayed or prevented from seeking commercialization of pacritinib. Delays in the commercialization of pacritinib would prevent us from receiving future milestone or royalty payments, and otherwise significantly harm our business.

We previously sought accelerated approval and requested Priority Review of our NDA for pacritinib. However, following the full clinical hold placed on pacritinib in February 2016, we subsequently withdrew our NDA. If we seek and the FDA does not grant accelerated approval or priority review for pacritinib or any of our other product candidates, we would experience a longer time to commercialization, if such product candidates are commercialized at all, our development costs would increase and our competitive position could be materially harmed.

If our development and commercialization collaborations are not successful, or if we are unable to enter into additional collaborations, we may not be able to effectively develop and/or commercialize our compounds, which could have a material adverse effect on our business.

Our business is dependent on the success of our development and commercialization collaborations. If our existing collaborations fail, or if we do not successfully enter into additional collaborations when needed, we may be unable to further develop and commercialize the applicable compounds, generate revenues to sustain or grow our business or achieve profitability, which would harm our business, financial condition, operating results and prospects.

Compounds that appear promising in research and development may fail to reach later stages of development for a number of reasons, including, among others, that clinical trials may take longer to complete than expected or may not be completed at all, and top-line or preliminary clinical trial data reports may ultimately differ from actual results once existing data are more fully evaluated.

Successful development of anti-cancer and other pharmaceutical products is highly uncertain, and obtaining regulatory approval to market drugs to treat cancer is expensive, difficult and speculative. Compounds that appear promising in research and development may fail to reach later stages of development for several reasons, including, but not limited to:

• delay or failure in obtaining necessary U.S. and international regulatory approvals, or the imposition of a partial or full regulatory hold on a clinical trial;

• difficulties in formulating a compound, scaling the manufacturing process, timely attaining process validation for particular drug products and obtaining manufacturing approval;

• pricing or reimbursement issues or other factors that may make the product uneconomical to commercialize;

• production problems, such as the inability to obtain raw materials or supplies satisfying acceptable standards for the manufacture of our products, equipment obsolescence, malfunctions or failures, product quality/contamination problems or changes in regulations requiring manufacturing modifications;

• inefficient cost structure of a compound compared to alternative treatments;

• obstacles resulting from proprietary rights held by others with respect to a compound, such as patent rights;

• lower than anticipated rates of patient enrollment as a result of factors, such as the number of patients with the relevant conditions, the proximity of patients to clinical testing centers, eligibility criteria for tests and competition with other clinical testing programs;

• preclinical or clinical testing requiring significantly more time than expected, resources or expertise than originally expected and inadequate financing, which could cause clinical trials to be delayed or terminated;

• failure of clinical testing to show potential products to be safe and efficacious, and failure to demonstrate desired safety and efficacy characteristics in human clinical trials;

• suspension of a clinical trial at any time by us, an applicable collaboration partner or a regulatory authority on the basis that the participants are being exposed to unacceptable health risks or for other reasons;

• delays in reaching or failing to reach agreement on acceptable terms with prospective CROs, and trial sites; and

• failure of third parties, such as CROs, academic institutions, collaborators, cooperative groups and/or investigator sponsors, to conduct, oversee and monitor clinical trials and results.

For example, although PIXUVRI received conditional marketing authorization in the E.U. in May 2012, we were required to conduct a post-authorization trial, referred to as PIX306, comparing PIXUVRI and rituximab with gemcitabine and rituximab in the setting of aggressive B-cell NHL and follicular grade 3 lymphoma. In July 2018, we and Servier announced that PIXUVRI plus rituximab did not show a statistically significant improvement in progression-free survival compared to gemcitabine plus rituximab and in February 2019, we and Servier mutually agreed to terminate our collaborative agreement.

In addition, from time to time, we report top-line data for clinical trials. Such data are based on a preliminary analysis of then-available efficacy and safety data, and such findings and conclusions are subject to change following a more comprehensive review of the data related to the particular study or trial. Top-line or preliminary data are based on important assumptions, estimations, calculations and information then available to us to the extent we have had, at the time of such reporting, an opportunity to fully and carefully evaluate such information in light of all surrounding facts, circumstances, recommendations and analyses. As a result, top-line results may differ from future results, or different conclusions or considerations may qualify such results once existing data have been more fully evaluated. In addition, third parties, including regulatory agencies, may not accept or agree with our assumptions, estimations, calculations or analyses or may interpret or weigh the importance of data differently, which could impact the value of the particular program, the approvability or commercialization of the particular compound and our business in general.

If the development of our compounds is delayed or fails, or if top-line or preliminary clinical trial data reported differ from actual results, our development costs may increase and the ability to commercialize our compounds may be harmed, which could harm our business, financial condition, operating results or prospects.

If we seek and the FDA does not grant accelerated approval or priority review for a drug candidate, we would experience a longer time to commercialization in the U.S., if commercialized at all, our development costs may increase and our competitive position may be harmed.

We may in the future decide to seek an accelerated approval pathway for our compounds. The FDA may grant accelerated approval to a product designed to treat a serious or life-threatening condition that provides meaningful therapeutic benefit over available therapies upon a determination that the product has an effect on a surrogate endpoint or intermediate clinical endpoint that is reasonably likely to predict clinical benefit. A surrogate endpoint under an accelerated approval pathway may be used in cases in which the advantage of a new drug over available therapy may not be a direct therapeutic advantage, but is a clinically important improvement from a patient and public health perspective. There can be no assurance that the FDA will agree that any endpoint we suggest with respect to any of our drug candidates is an appropriate surrogate endpoint. Furthermore, there can be no assurance that any application will be accepted or that accelerated approval will be granted on any basis. Even if a product candidate is granted accelerated approval, such accelerated approval is contingent on the sponsor’s agreement to conduct one or more post-approval confirmatory trials that demonstrate a clinical benefit. Such confirmatory trial(s) must be completed with due diligence and, in some cases, the FDA may require that the trial(s) be designed and/or initiated prior to approval. Moreover, the FDA may withdraw approval of a product candidate or indication approved under the accelerated approval pathway for a variety of reasons, including if the trial(s) required to verify the predicted clinical benefit of a product candidate fail to verify such benefit or do not demonstrate sufficient clinical benefit to justify the risks associated with the drug, or if the sponsor fails to conduct any required post-approval trial(s) with due diligence.

In the event of priority review, the FDA has a goal to (but is not required to) take action on an application within six months after it has accepted an application for filing (rather than a goal of twelve months for a standard review). The FDA grants priority review only if it determines that a product treats a serious condition and, if approved, would provide a significant improvement in safety or effectiveness when compared to a standard application. The FDA has broad discretion whether to grant priority review, and, while the FDA has granted priority review to other oncology product candidates, our drug candidates may not receive similar designation. Moreover, receiving priority review from the FDA does not guarantee completion of review or approval within the targeted six-month cycle or thereafter.

A failure to obtain accelerated approval or priority review would result in a longer time to commercialization of the applicable compound in the U.S., if commercialized at all, could increase the cost of development and could harm our competitive position in the marketplace.

We or our collaboration partners may not obtain or maintain the regulatory approvals required to develop or commercialize some or all of our compounds.

We are subject to rigorous and extensive regulation by the FDA in the U.S. and by comparable agencies in other jurisdictions, including the EMA in the E.U. Some of our other product candidates are currently in research or development and, other than conditional marketing authorization for PIXUVRI in the E.U., we have not received marketing approval for our compounds. Our products may not be marketed in the U.S. until they have been approved by the FDA and may not be marketed in other jurisdictions until they have received approval from the appropriate foreign regulatory agencies. Each product candidate requires significant research, development and preclinical testing and extensive clinical investigation before submission of any regulatory application for marketing approval. Obtaining regulatory approval requires substantial time, effort and financial resources, and we may not be able to obtain approval of any of our products on a timely basis, or at all. For instance, in February 2016, the FDA placed pacritinib on full clinical hold and the clinical hold was not removed until January 2017. The number, size, design and focus of preclinical and clinical trials that will be required for approval by the FDA, the EMA or any other foreign regulatory agency varies depending on the compound, the disease or condition that the compound is designed to address and the regulations applicable to any particular compound. For example, in July 2018, we attended a Type B meeting with the FDA to discuss the proposed regulatory pathway for pacritinib. Based on FDA feedback at the meeting, we intend to conduct a randomized Phase 3 study of pacritinib in patients with myelofibrosis, which Phase 3 study will require significant time and resources to complete and, even if completed, may not be sufficient to support approval. Preclinical and clinical data can be interpreted in different ways, which could delay, limit or preclude regulatory approval. The FDA, the EMA and other foreign regulatory agencies can delay, limit or deny approval of a compound for many reasons, including, but not limited to:

• a compound may not be shown to be safe or effective;

• the clinical and other benefits of a compound may not outweigh its safety risks;

• clinical trial results may be negative or inconclusive, or adverse medical events may occur during a clinical trial;

• the results of clinical trials may not meet the level of statistical significance required by regulatory agencies for approval;

• such regulatory agencies may interpret data from pre-clinical and clinical trials in different ways than we do;

• such regulatory agencies may not approve the manufacturing process of a compound or determine that a third-party contract manufacturers manufactures a compound in accordance with current good manufacturing practices, or cGMPs;

• a compound may fail to comply with regulatory requirements; or

• such regulatory agencies might change their approval policies or adopt new regulations.

If our compounds are not approved at all or quickly enough to provide net revenues to defray our operating expenses, our business, financial condition, operating results and prospects could be harmed.

The pharmaceutical business is subject to increasing government price controls and other restrictions on pricing, reimbursement and access to drugs, which could adversely affect our future revenues and profitability.

To the extent our products are developed, commercialized and successfully introduced to market, they may not be considered cost-effective and third-party or government reimbursement might not be available or sufficient. Globally, governmental and other third-party payors are becoming increasingly aggressive in attempting to contain health care costs by strictly controlling, directly or indirectly, pricing and reimbursement and, in some cases, limiting or denying coverage altogether on the basis of a variety of justifications, and we expect pressures on pricing and reimbursement from both governments and private payors inside and outside the U.S. to continue. In the U.S., we are subject to substantial pricing, reimbursement and access pressures from state Medicaid programs, private insurance programs and pharmacy benefit managers, and implementation of U.S. health care reform legislation is increasing these pricing pressures. The Patient Protection and Affordable Care Act instituted comprehensive health care reform, which includes provisions that, among other things, reduce and/or limit Medicare reimbursement and impose new and/or increased taxes. In addition, members of the Trump administration, including the President, have made public statements criticizing pricing practices within the pharmaceutical industry, indicating that they may seek to increase pricing pressures on the pharmaceutical industry.

In almost all European markets, pricing and choice of prescription pharmaceuticals are subject to governmental control. Therefore, the price of our products and their reimbursement in Europe is and will be determined by national regulatory authorities. Reimbursement decisions from one or more of the European markets may impact reimbursement decisions in other European markets. A variety of factors are considered in making reimbursement decisions, including whether there is sufficient evidence to show that treatment with the product is more effective than current treatments, that the product represents good value for money for the health service it provides and that treatment with the product works at least as well as currently available treatments. The continuing efforts of governments and insurance companies, health maintenance organizations and other payors of health care costs, to contain or reduce costs of health care may affect the availability of capital, as well as our future revenues and profitability or those of our potential customers, suppliers and collaborative partners.

Post-approval or authorization regulatory reviews and obligations often result in significant expense and marketing limitations, and any failure to satisfy such ongoing obligations could negatively affect our business, financial condition, operating results or prospects.

Even if a product receives regulatory approval or authorization, as applicable, we are and will continue to be subject to numerous regulations and statutes regulating the manner of obtaining reimbursement for and selling the product, including limitations on the indicated uses for which a product may be marketed, promoted and advertised. Approved or authorized products are subject to extensive manufacturing, labeling, packaging, adverse event reporting, storage, advertising, promotion and record-keeping regulations. These requirements include submissions of safety and other post-marketing information and reports. In addition, such products are subject to ongoing maintenance of product registration and continued compliance with cGMPs, good clinical practices, or GCPs, and good laboratory practices, or GLPs for post-approval studies. Further, distribution of products must be conducted in accordance with good distribution practices, or GDPs. The distribution process and facilities of our third-party distributors are subject to, and our wholesale distribution authorization by the UK Medicines and Healthcare Products Regulatory Agency subjects us to, continuing regulation by applicable regulatory authorities with respect to the distribution and storage of products. Regulatory authorities may also impose new restrictions on continued product marketing or may require the withdrawal of a product from the market if adverse events of unanticipated severity or frequency are discovered following approval. In addition, regulatory agencies may impose post-approval/post-authorization clinical trials, such as the PIX306 trial of PIXUVRI required by the EMA. In

July 2018, we and Servier announced that PIXUVRI plus rituximab did not show a statistically significant improvement in progression-free survival compared to gemcitabine plus rituximab, and in February 2019, we and Servier mutually agreed to terminate our collaborative agreement, which limits our ability to receive future payments and royalties related to PIXUVRI. For more information on the termination of our agreement with Servier, see the section of this report captioned “Business - License Agreements - Servier.”

Any other failure to comply with applicable regulations could result in warning or untitled letters, product recalls, interruption of manufacturing and commercial supply processes, withdrawal or seizure of products, suspension of an applicable wholesale distribution authorization and/or distribution of products, operating restrictions, injunctions, suspension of licenses, revocation of the applicable product’s approval or authorization, other administrative or judicial sanctions (including civil penalties and/or criminal prosecution) and/or unanticipated related expenditure to resolve shortcomings, which could negatively affect our business, financial condition, operating results or prospects.

We may be subject to fines, penalties, injunctions and other sanctions if we are deemed to be promoting the use of our products for non-FDA-approved, or off-label, uses.

Our business and future growth depend on the development, ultimate sale and use of products that are subject to FDA, EMA and or other regulatory agencies regulation, clearance and approval. Under the U.S. Federal Food, Drug, and Cosmetic Act and other laws, we are prohibited from promoting our products for off-label uses, or uses not approved by the FDA. This means that in the U.S., we may not make claims about the safety or effectiveness of our products and may not proactively discuss or provide information on the uses of our products that are not approved by the FDA, unless otherwise allowed by the FDA by policy or other guidance.

Government investigations concerning the promotion of off-label uses and related issues are typically expensive, disruptive and burdensome, generate negative publicity and may result in fines or payments of settlement awards. If our promotional activities are found to be in violation of applicable law or if we agree to a settlement in connection with an enforcement action, we would likely face significant fines and penalties and would likely be required to substantially change our sales, promotion, grant and educational activities.

We are subject to numerous laws and regulations related to health care fraud and abuse, false claims, anti-bribery and anti-corruption laws, such as the U.S. Anti-Kickback Statute and Foreign Corrupt Practices Act of 1977, in which violations of these laws could result in substantial penalties and prosecution.

In the United States, we are subject to various state and federal fraud and abuse laws, including, without limitation, the federal Anti-Kickback Statute and federal False Claims Act. There are similar laws in other countries. These laws may impact, among other things, the sales, marketing and education programs for our products. The federal Anti-Kickback Statute prohibits persons from knowingly and willingly soliciting, offering, receiving or providing remuneration, directly or indirectly, in exchange for or to induce either the referral of an individual, or the furnishing or arranging for a good or service, for which payment may be made under a federal health care program. The federal False Claims Act prohibits persons from knowingly filing, or causing to be filed, a false claim to, or the knowing use of false statements to obtain payment from the federal government. Suits filed under the False Claims Act can be brought by any individual on behalf of the government and such individuals, commonly known as “whistleblowers,” may share in any amounts paid by the entity to the government in fines or settlement. Many states have also adopted laws similar to the federal Anti-Kickback Statute and False Claims Act. Any allegation, investigation, or violation of these domestic health care fraud and abuse laws could result in government or internal investigations, significant diversion of resources, exclusion from government health care reimbursement programs and the curtailment or restructuring of our operations, significant fines, penalties, or other financial consequences, any of which may ultimately have a material adverse effect on our business.

For our sales and operations outside the United States, we are similarly subject to various heavily-enforced anti-bribery and anti-corruption laws, such as the U.S. Foreign Corrupt Practices Act of 1977, as amended, or FCPA, U.K. Bribery Act, and similar laws around the world. These laws generally prohibit U.S. companies and their employees and intermediaries from offering, promising, authorizing or making improper payments to foreign government officials for the purpose of obtaining or retaining business or gaining any advantage. We face significant risks if we, which includes our third parties, fail to comply with the FCPA and other anti-corruption and anti-bribery laws.

We leverage various third parties to sell our products and conduct our business abroad. We, our commercial partners and our other third-party intermediaries, including collaborators and licensees, may have direct or indirect interactions with officials and employees of government agencies or state-owned or affiliated entities (such as in the context of obtaining government approvals, registrations, or licenses or sales to government owned or controlled health care facilities,

universities, institutes, clinics, etc.) and may be held liable for the corrupt or other illegal activities of these third-party business partners and intermediaries, our employees, representatives, contractors, partners, collaborators, licensees and agents, even if we do not explicitly authorize such activities. In many foreign countries, particularly in countries with developing economies, it may be a local custom that businesses engage in practices that are prohibited by the FCPA or other applicable laws and regulations. To that end, while we have adopted and implemented internal control policies and procedures and employee training and compliance programs to deter prohibited practices, such compliance measures ultimately may not be effective in prohibiting our employees, representatives, contractors, partners, collaborators, licensees, agents and other third parties or intermediaries from violating or circumventing our policies and/or the law.

Any violation of the FCPA, other applicable anti-bribery, anti-corruption laws, and anti-money laundering laws could result in whistleblower complaints, adverse media coverage, investigations, loss of export privileges, severe criminal or civil sanctions and, in the case of the FCPA, suspension or debarment from U.S. government contracts, which could have a material and adverse effect on our reputation, business, operating results and prospects. In addition, responding to any enforcement action or related investigation may result in a materially significant diversion of management’s attention and resources and significant defense costs and other professional fees.

Our employees, collaborators and other personnel may engage in misconduct or other improper activities, including non-compliance with regulatory standards and requirements and insider trading.

We are exposed to the risk of fraud or other misconduct by our employees, collaborators, vendors, principal investigators, consultants and commercial partners. Misconduct by these parties could include intentional failures to comply with the regulations of the FDA, EMA and other regulators, providing inaccurate or misleading information to the FDA, EMA and other regulators, failure to comply with data privacy and security and healthcare fraud and abuse laws and regulations in the U.S. and abroad, reporting inaccurate financial information or clinical data or disclose unauthorized activities to us. In particular, sales, marketing and business arrangements in the healthcare industry are subject to extensive laws and regulations intended to prevent fraud, misconduct, kickbacks, self-dealing and other abusive practices. Additionally, laws regarding data privacy and security, including the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009, or HITECH, as well as applicable laws in non-U.S. jurisdictions, such as the European Union's General Data Privacy Regulation and Clinical Trials Regulation, the latter of which will replace the E.U. Clinical Trials Directive and which is expected to take effect beginning in late 2019 or in 2020, may impose obligations with respect to safeguarding the privacy, use, security, transmission and other processing of individually identifiable health information and other personal data that we may collect, retain, and otherwise process. As the General Data Protection Regulation entered into force recently, guidance on implementation and compliance practices are still being developed, updated or otherwise revised. Although the General Data Protection Regulation is intended to provide for a high level of harmonization across the European Union, Member States may still implement certain variations, and data protection authorities may enforce the General Data Protection Regulation and national laws differently, which adds to the complexity of processing personal data in the European Union. Furthermore, there is a trend towards the public disclosure of clinical trial data in the E.U. which also adds to the complexity of processing health data from clinical trials. Such public disclosure obligations are provided in the new E.U. Clinical Trials Regulation, EMA disclosure initiatives, and voluntary commitments by industry. Failing to comply with these obligations could lead to government enforcement actions and significant penalties against us, harm to our reputation, and adversely impact our business and operating results. The uncertainty regarding the interplay between different regulatory frameworks, such as the Clinical Trials Regulation and the General Data Protection Regulation, further adds to the complexity that we face with regard to data protection regulation. Additionally, we rely on the use of standard contractual clauses approved by the European Commission in order to transfer personal data from the E.U. to the U.S. These standard contractual clauses are subject to legal challenge in the E.U., and it is possible that they will be invalidated or modified. In such event, we could need to implement alternative measures to transfer personal data from the E.U. to the U.S., which we may be unable to do in a commercially reasonable manner or at all. In the U.S., in addition to possible civil and criminal penalties for violations, state attorneys general are authorized to file civil actions for damages or injunctions in federal courts to enforce HIPAA and seek attorneys’ fees and costs associated with pursuing federal civil actions. In addition, state laws govern the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and may not have the same effect, thus complicating compliance efforts.

Various laws and regulations may restrict or prohibit a wide range of pricing, discounting, marketing and promotion, sales commission, customer incentive programs and other business arrangements. Any misconduct could also involve the improper use of information obtained in the course of clinical studies, which could result in regulatory sanctions and cause serious harm to our reputation. We have adopted a code of conduct applicable to all of our employees, officers, directors, agents and representatives, including consultants, but it is not always possible to identify and deter misconduct, and the

precautions we take to detect and prevent misconduct may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to comply with these laws and regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business, including the imposition of significant fines or other sanctions.

Risks Related to Intellectual Property

If any of our license agreements for intellectual property underlying our compounds are terminated, we may lose the right to develop or market that product.

We have acquired or licensed intellectual property from third parties, including patent applications and patents relating to intellectual property for pacritinib and other product candidates. Some of our product development programs depend on our ability to maintain rights under these arrangements. Each licensor has the power to terminate its agreement with us if we fail to meet our obligations under these licenses. We may not be able to meet our obligations under these licenses. If we default under any license agreement, we may lose our right to market and sell any products based on the licensed technology and may be forced to cease operations, liquidate our assets and possibly seek bankruptcy protection. Bankruptcy may result in the termination of agreements pursuant to which we license certain intellectual property rights.

We hold rights under numerous patents that we have acquired or licensed or that protect inventions originating from our research and development, and the expiration of any of these patents may allow our competitors to copy the inventions that are currently protected.

We dedicate significant resources to protecting our intellectual property, which is important to our business. We have filed numerous patent applications in the U.S. and various other countries seeking protection of inventions originating from our research and development, and we have also obtained rights to various patents and patent applications under licenses with third parties and through acquisitions. Patents have been issued on many of these applications. We have pending patent applications or issued patents in the U.S. and foreign countries directed to pacritinib and other product candidates. However, the lives of these patents are limited. Patents for the individual products extend for varying periods according to the date of the patent filing or grant and the legal term of patents in the various countries where patent protection is obtained.

Our U.S. and foreign method and composition of matter patents for pacritinib expire as follows: U.S. patents expire in May 2028 (method) / January 2029 (compound) / March 2030 (salt); foreign patents expire in November 2026 (method and compound) / December 2029 (salt). We expect our U.S. and foreign patent applications for use of pacritinib for treating transplant rejection will expire in 2036. Pacritinib has orphan drug designation for myelofibrosis in the U.S. and the E.U.

Each patent may be eligible for future patent term restoration of up to five years under certain circumstances. However, given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such candidates might expire before such candidates are commercialized which may prevent us from obtaining any regulatory extensions if all the patents covering our candidates are expired prior to regulatory approval of the corresponding product candidate. As a result, our owned and licensed patent portfolio may not provide us with sufficient rights to exclude others from commercializing products similar or identical to ours.

Also, regulatory exclusivity tied to the protection of clinical data may be complementary to patent protection. During a period of regulatory exclusivity, competitors generally may not use the original applicant’s data as the basis for a generic application. In the U.S., the data protection generally runs for five years from first marketing approval of a new chemical entity, extended to seven years for an orphan drug indication.

If we fail to adequately protect our intellectual property, our competitive position and the potential for long-term success could be harmed.

Development and protection of our intellectual property are critical to our business. If we do not adequately protect our intellectual property, competitors may be able to practice our technologies. Our success depends in part on our ability to:

• obtain and maintain patent protection for our products or processes both in the U.S. and other countries;

• protect trade secrets; and

• prevent others from infringing on our proprietary rights.

The patent position of pharmaceutical and biotechnology firms, including ours, generally is highly uncertain and involves complex legal and factual questions. The U.S. Patent and Trademark Office has not established a consistent policy regarding the breadth of claims that it will allow in pharmaceutical and biotechnology patents. If it allows broad claims, the number and cost of patent interference proceedings in the U.S. and the risk of infringement litigation may increase. If it allows narrow claims, the risk of infringement may decrease, but the value of our rights under our patents, licenses and patent applications may also decrease. Patent applications in which we have rights may never issue as patents, and the claims of any issued patents may not afford meaningful protection for our technologies or products. In addition, patents issued to us or our licensors may be challenged and subsequently narrowed, invalidated, circumvented or found unenforceable. Litigation, interference proceedings or other governmental proceedings that we may become involved in with respect to our proprietary technologies or the proprietary technology of others could result in substantial cost to us.

We also rely upon trade secrets, proprietary know-how and continuing technological innovation to remain competitive. Third parties may independently develop such know-how or otherwise obtain access to our technology. While we require our employees, consultants and corporate partners with access to proprietary information to enter into confidentiality agreements, these agreements may not be honored.

Patent litigation is widespread in the pharmaceutical and biotechnology industry, and any patent litigation could harm our business.

Costly litigation might be necessary to protect a patent position or to determine the scope and validity of third-party proprietary rights, and we may not have the required resources to pursue any such litigation or to protect our patent rights. Any adverse outcome in litigation with respect to the infringement or validity of any patents owned by third parties could subject us to significant liabilities to third parties, require disputed rights to be licensed from third parties or require us to cease using a product or technology. With respect to our in-licensed patents, if we attempt to initiate a patent infringement suit against an alleged infringer, it is possible that our applicable licensor will not participate in or assist us with the suit, and as a result, we may not be able to effectively enforce the applicable patents against the alleged infringers.

We may be unable to obtain or protect our intellectual property rights and we may be liable for infringing upon the intellectual property rights of others, which may cause us to engage in costly litigation and, if unsuccessful, could cause us to pay substantial damages and prohibit us from selling our products.

At times, we may monitor patent filings for patents that might be relevant to some of our products and product candidates in an effort to guide the design and development of our products to avoid infringement, but may not have conducted an exhaustive search. We may not be able to successfully challenge the validity of third-party patents and could be required to pay substantial damages, possibly including treble damages, for past infringement and attorneys’ fees if it is ultimately determined that our products infringe such patents. Further, we may be prohibited from selling our products before we obtain a license, which, if available at all, may require us to pay substantial royalties.

Moreover, third parties may challenge the patents that have been issued or licensed to us. We do not believe that pacritinib or any of the other compounds we are currently developing infringe upon the rights of any third parties nor do we believe that they are materially infringed upon by third parties; however, there can be no assurance that our technology will not be found in the future to infringe upon the rights of others or be infringed upon by others. In such a case, others may assert infringement claims against us, and should we be found to infringe upon their patents, or otherwise impermissibly utilize their intellectual property, we might be forced to pay damages, potentially including treble damages, if we are found to have willfully infringed on such parties’ patent rights. In addition to any damages we might have to pay, we may be required to obtain licenses from the holders of this intellectual property, enter into royalty agreements or redesign our compounds so as not to utilize this intellectual property, each of which may prove to be uneconomical or otherwise impossible. Conversely, we may not always be able to successfully pursue our claims against others that infringe upon our technology and the technology exclusively licensed from any third parties. Thus, the proprietary nature of our technology or technology licensed by us may not provide adequate protection against competitors.

Even if infringement claims against us are without merit, or if we challenge the validity of issued patents, lawsuits take significant time, may, even if resolved in our favor, be expensive and divert management attention from other business

concerns. Uncertainties resulting from the initiation and continuation of any litigation could limit our ability to continue our operations.

We may be subject to damages resulting from claims that we or our employees have wrongfully used or disclosed alleged trade secrets of our employees’ former employers.

Many of our employees were previously employed at universities or other life sciences companies, including our competitors or potential competitors. Although no claims against us are currently pending, we or our employees may be subject to claims that these employees or we have inadvertently or otherwise used or disclosed trade secrets or other proprietary information of their former employers. Litigation may be necessary to defend against these claims. If we fail in defending such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights. A loss of key research personnel work product could hamper or prevent our ability to commercialize certain potential products, which could severely harm our business. Even if we are successful in defending against these claims, litigation could result in substantial costs and be a distraction to management.

Risks Related to Our Common Stock

The market price of shares of our common stock is extremely volatile, which may affect our ability to raise capital in the future and may subject the value of your investment in our securities to sudden decreases.

The market price for securities of biopharmaceutical and biotechnology companies, including ours, historically has been highly volatile, and the market from time to time has experienced significant price and volume fluctuations that are unrelated to the operating performance of such companies. For example, during the 12-month period ended February 28, 2019, our stock price ranged from a low of $0.60 to a high of $5.36. Fluctuations in the market price or liquidity of our common stock may harm the value of your investment in our common stock. Factors that may have an impact, which, depending on the circumstances, could be significant, on the market price and marketability of our securities include:

• announcements by us or others of results of clinical trials and regulatory actions, such as the imposition of a clinical trial hold;

• announcements by us or others of serious adverse events that have occurred during administration of our products to patients;

• announcements by us or others relating to our ongoing development and commercialization activities;

• halting or suspension of trading in our common stock on the Nasdaq;

• announcements of technological innovations or new commercial therapeutic products by us, our collaborative partners or our present or potential competitors;

• our issuance of debt or equity securities, which we expect to pursue to generate additional funds to operate our business, or any perception from time to time that we will issue such securities;

• our quarterly operating results;

• liquidity, cash position or financing needs;

• developments or disputes concerning patent or other proprietary rights;

• developments in relationships with collaborative partners;

• acquisitions or divestitures;

• our ability to realize the anticipated benefits of our compounds;

• litigation and government proceedings;

• adverse legislation, including changes in governmental regulation;

• third-party reimbursement policies;

• changes in securities analysts’ recommendations;

• short selling of our securities;

• changes in health care policies and practices;

• a failure to achieve previously announced goals and objectives as or when projected; and

• general economic and market conditions.

We may not be able to maintain our listing on the Nasdaq Capital Market, or the Nasdaq, or trading on the Nasdaq may otherwise be halted or suspended, which may make it more difficult for investors to sell shares of our common stock and consequently may negatively impact the price of our common stock.

We regained compliance in January 2017 with the minimum $1.00 bid price requirement by effecting a 1-for-10 reverse stock split on January 1, 2017, after receiving notice of non-compliance from the Nasdaq in March 2016.

We have in the past and may in the future fail to comply with the Nasdaq requirements. If our common stock ceases to be listed for trading on the Nasdaq for failure to comply with the minimum $1.00 per share closing bid price requirement or for any other reason, it may harm our stock price, increase the volatility of our stock price, decrease the level of trading activity and make it more difficult for investors to buy or sell shares of our common stock. Our failure to maintain a listing on the Nasdaq may constitute an event of default under our loan and security agreement and any future indebtedness, which would accelerate the maturity date of such debt or trigger other obligations. In addition, certain institutional investors that are not permitted to own securities of non-listed companies may be required to sell their shares adversely affecting the market price of our common stock. If we are not listed on the Nasdaq, our ability to raise capital will be adversely impacted. Additionally, for so long as our non-affiliate public float does not exceed $75 million, the amount of securities that we may sell pursuant to registration statements on Form S-3 will be limited to the equivalent of one-third of our public float, which will limit our ability to file or use shelf registration statements on Form S-3 and further limit our ability to raise capital. We have relied significantly on shelf registration statements on Form S-3 for most of our financings in recent years, so any such limitations may harm our ability to raise the capital we need. Trading in our common stock has been halted or suspended on the Nasdaq in the past and may also be halted or suspended in the future on the Nasdaq due to market or trading conditions at the discretion of the Nasdaq. Any halt or suspension in the trading in our common stock may negatively impact the market price of our common stock.

Future financing, strategic and other activities may require us to increase the number of authorized shares in our certificate of incorporation. An inability to secure requisite stockholder approval for such increases could materially and adversely impact our ability to fund our operations.

At our 2018 annual meeting of stockholders, we sought and received approval of an amendment to our certificate of incorporation to increase the total number of authorized shares and the total number of authorized shares of our common stock by 20 million. We proposed the increase in authorized shares due to the fact that we anticipate the need to issue additional shares of common stock in the future in connection with one or more of the following:


•	financing transactions, such as public or private offerings of common stock or derivative securities;


•	our equity incentive plans and employee stock purchase plan;


•	debt, warrant or other equity restructuring or refinancing transactions, such as debt or warrant exchanges or offerings of new convertible debt or modifications to existing securities, or as payments of interest on debt securities;


•	acquisitions, strategic partnerships, collaborations, joint ventures, restructurings, divestitures, business combinations and strategic investments;


•	corporate transactions, such as stock splits or stock dividends; and


•	other corporate purposes that have not yet been identified.

We may seek approval to increase the number of authorized shares again in the future. Without such increases in the number of authorized shares, we may be constrained in our ability to raise capital when needed, and may lose important business opportunities, including to competitors, which could adversely affect our financial performance, growth and ability to continue our operations. As opportunities or circumstances that require prompt action frequently arise, we believe that the delay necessitated for stockholder approval of a specific issuance could result in a material and adverse impact on our business.

Even if we obtain approval to increase the number of authorized shares, we are required under the Nasdaq Marketplace Rules to obtain stockholder approval for any issuance of additional equity securities that would comprise more than 20% of the total shares of our common stock outstanding before the issuance of such securities sold at a discount to a minimum price as set forth in the Nasdaq Marketplace Rules in an offering that is not deemed to be a “public offering” by the Nasdaq Marketplace Rules, as well as under certain other circumstances. We have in the past and may in the future issue additional equity securities that would comprise more than 20% of the total shares of our common stock outstanding in order to fund our operations. However, we might not be successful in obtaining the required stockholder approval for any future issuance that requires stockholder approval pursuant to applicable rules and regulations. If we are unable to obtain financing or our financing options are limited due to stockholder approval difficulties, such failure may harm our ability to continue operations.

Anti-takeover provisions in our charter documents, under Delaware law and in other applicable instruments could make removal of incumbent management or an acquisition of us, which may be beneficial to our stockholders, more difficult.

Provisions of our certificate of incorporation and bylaws may have the effect of deterring or delaying attempts by our stockholders to remove or replace management, to commence proxy contests or to effect changes in control. These provisions include:

• elimination of cumulative voting in the election of directors;

• procedures for advance notification of stockholder nominations and proposals;

• the ability of our Board of Directors to amend our bylaws without stockholder approval; and

• the ability of our Board of Directors to issue shares of preferred stock without stockholder approval upon the terms and conditions and with the rights, privileges and preferences as our Board of Directors may determine.

In addition, as a Delaware corporation, we are subject to Delaware’s anti-takeover statute, which imposes restrictions on some transactions between a corporation and certain interested stockholders. Other existing provisions applicable to us that could have an anti-takeover effect include our executive employment agreements and certain provisions of our outstanding equity-based compensatory awards that allow for acceleration of vesting in the event of a change in control. Our shareholder rights plan expired pursuant to its terms on December 2, 2018, and was not replaced; however, the Board may, subject to its fiduciary duties under applicable law, choose to implement a similar plan in the future. Likewise, because our principal executive offices are located in Washington, the anti-takeover provisions of the Washington Business Corporation Act may apply to us under certain circumstances now or in the future. These provisions prohibit a “target corporation” from engaging in any of a broad range of business combinations with any stockholder constituting an “acquiring person” for a period of five years following the date on which the stockholder became an “acquiring person.”

The foregoing provisions, alone or together, could have the effect of deterring or delaying changes in incumbent management, proxy contests or changes in control.

If we fail to maintain effective internal controls over financial reporting, we may not be able to accurately report our financial results, which could adversely affect our investors' confidence, our business and the trading prices of our securities.

If we fail to maintain the adequacy of our internal controls, we may be unable to provide financial information in a timely and reliable manner within the time periods required for our financial reporting under SEC rules and regulations. Internal controls over financial reporting may not prevent or detect misstatements or omissions in our financial statements because of their inherent limitations, including the possibility of human error, the circumvention or overriding of controls or fraud. We have recently implemented a reduction in force, which may result in changes to our internal controls over financial reporting. The changes could relate to different employees performing internal control activities than those who have previously performed those activities or revisions to our actual control activities as we evaluate the appropriate internal control structure after our workforce reduction. A changing internal control environment increases the risk that our system of internal controls is not designed effectively or that internal control activities will not occur as designed. The occurrence

of or failure to remediate a significant deficiency material weakness may adversely affect our reputation and business and the market price of shares of our common stock.

Future sales and issuances of our common stock or rights to purchase common stock, including pursuant to our equity incentive plans, could cause you to incur dilution and could cause the market price of our common stock to fall.

As of December 31, 2018, options to purchase 7,219,292 shares of our common stock with a weighted-average exercise price of $4.08 per share were outstanding. The exercise of any of these options would result in dilution to current stockholders. Further, because we will need to raise additional capital to fund our operations and clinical development programs, we may in the future sell substantial amounts of common stock or securities convertible into or exchangeable for common stock. Pursuant to our equity incentive plans, our compensation committee is authorized to grant equity-based incentive awards to our employees, directors and consultants. Future option grants and issuances of common stock under our share-based compensation plans may have an adverse effect on the market price of our common stock.

These future issuances of common stock or common stock-related securities, together with the exercise of outstanding options and any additional shares of common stock issued in connection with acquisitions, if any, may result in further dilution to our existing stockholders, and new investors could gain rights, preferences and privileges senior to those of holders of our common stock.

If securities or industry analysts do not publish research reports about our business, or if they issue an adverse opinion about our business, the market price of our common stock and the trading volume of our common stock could decline.

The trading market for our common stock is influenced by the research and reports that securities or industry analysts publish about us or our business. If too few securities or industry analysts cover our company, the market price of our common stock would likely be negatively impacted. If securities and industry analysts who cover us downgrade our common stock or publish inaccurate or unfavorable research about our business, the market price of our common stock would likely decline. If one or more of these analysts cease coverage of our company or fail to publish reports on us regularly, demand for our common stock could decrease, which might cause the market price of our common stock and the trading volume of our common stock to decline.

Our management team has broad discretion as to the use of the net proceeds from public or private equity or debt financings and the investment of these proceeds may not yield a favorable return. We may invest the proceeds in ways with which our stockholders disagree.

We have broad discretion in the application of the net proceeds to us from our November 2017 debt financing and February 2018 public equity offering of our common stock. You may not agree with our decisions, and our use of the proceeds and our existing cash and cash equivalents and marketable securities may not improve our results of operation or enhance the value of our common stock. The results and effectiveness of the use of proceeds are uncertain, and we could spend the proceeds in ways that you do not agree with or that do not improve our results of operations or enhance the value of our common stock. Our failure to apply these funds effectively could have a material adverse effect on our business, delay the development of our product candidates and cause the market price of our common stock to decline. In addition, until the net proceeds are used, they may be placed in investments that do not produce significant income or that may lose value.

Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

We currently lease approximately 66,000 square feet of space at 3101 Western Avenue in Seattle, Washington. The lease commenced in May 2012 and expires in April 2022. Approximately 44,000 square feet of space at this address has been subleased commencing December 2017 and ending April 2022. We believe our existing and planned facilities are adequate to meet our present requirements. We anticipate that additional space will be available, when needed, on commercially reasonable terms.

Item 3. Legal Proceedings

Except as set forth below, we are not engaged in any material legal proceedings. From time to time, we may become involved in litigation relating to claims arising from the ordinary course of business. Except as set forth below, we believe that there are no claims or actions pending against us currently, the ultimate disposition of which would have a material adverse effect on our consolidated results of operation, financial condition or cash flows.

In April 2009, December 2009 and June 2010, the Italian Tax Authority, or the ITA, issued notices of assessment to CTI - Sede Secondaria, or CTI (Europe), based on the ITA’s audit of CTI (Europe)’s value added tax, or VAT, returns for the years 2003, 2005, 2006 and 2007, or, collectively, the VAT Assessments. The ITA audits concluded that CTI (Europe) did not collect and remit VAT on certain invoices issued to non-Italian clients for services performed by CTI (Europe). The assessments, including interest and penalties, for the years 2003, 2006 and 2007 are €0.6 million, €2.7 million and €0.9 million, respectively. We believe that the services invoiced were non-VAT taxable consultancy services and that the VAT returns are correct as originally filed. We have appealed all the assessments and are defending ourselves against the assessments both on procedural grounds and on the merits of the cases, although we can make no assurances regarding the ultimate outcome of these cases.

Following is a summary of the status of the legal proceedings surrounding each respective VAT year return at issue:

• 2003 VAT Assessment . In June 2013, the Regional Tax Court issued decision no. 119/50/13 in regards to the 2003 VAT Assessment, which accepted the October 2012 appeal of the ITA and reversed a previous decision of the Provincial Tax Court. In January 2014, we appealed such decision to the Italian Supreme Court both on procedural grounds and on the merits of the case. In March 2014, we paid a deposit in respect of the 2013 VAT matter of €0.4 million (or $0.6 million upon conversion from euros as of the date of payment), following the ITA's request for such payment.

• 2005 VAT Assessment . In January 2018, the Italian Supreme Court issued decision No. 02250/2018 which (i) rejected the April 2013 appeal of the ITA, (ii) confirmed the October 2012 decision of the Regional Tax Court (127/31/2012), which fully accepted the merits of our earlier appeal and confirmed that no penalties could be imposed against us, and (iii) due to the novelty of the arguments at stake, compensated the legal expenses incurred by the parties. ITA may not use any ordinary means of appeal against the Italian Supreme Court decision, and we have initiated steps to recover the amounts owed to us. We have applied for a refund based on the guidance from ITA, however the collectibility of the refund currently has not been determined.

• 2006 and 2007 VAT Assessments . In November 2013, the ITA appealed to the Italian Supreme Court an April 2013 decision of the Regional Tax Court (57/35/13), that fully rejected the merits of an earlier ITA appeal, declared that no penalties could be imposed against us and found ITA liable to pay us approximately €12,000, as a partial refund of legal expenses we incurred.

No hearing has been fixed yet for either the 2003 VAT Assessment or consolidated 2006 and 2007 VAT Assessment cases.

Item 4. Mine Safety Disclosures

Not applicable.

PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Our common stock is currently traded under the symbol “CTIC” on the NASDAQ Capital Market. The following table sets forth, for the periods indicated, the high and low reported sales prices per share of our common stock as reported on the NASDAQ Capital Market.



	High		Low
2017
First Quarter	$	6.48	$	3.87
Second Quarter	$	4.52	$	2.70
Third Quarter	$	3.84	$	3.07
Fourth Quarter	$	3.45	$	2.45
2018
First Quarter	$	4.15	$	2.48
Second Quarter	$	5.36	$	3.70
Third Quarter	$	5.28	$	1.70
Fourth Quarter	$	2.30	$	0.60

On February 28, 2019, the last reported sale price of our common stock on the NASDAQ Capital Market was $1.02 per share. As of February 28, 2019, there were 108 stockholders of record of our common stock.

Dividend Policy

We have never declared or paid cash dividends on our common stock and do not currently anticipate declaring or paying cash dividends on our common stock in the foreseeable future. We currently intend to retain all of our future earnings, if any, to finance operations. Any future determination relating to our dividend policy will be made at the discretion of our Board of Directors and will depend on a number of factors, including future earnings, capital requirements, financial conditions, future prospects, contractual restrictions and other factors that our Board of Directors may deem relevant.

Sales of Unregistered Securities

On November 6, 2018, we issued to a consultant a warrant to purchase 294,117 shares of our common stock. The exercise price of the warrant is $1.70 per share. The issuance of the warrant was exempt from registration under the Securities Act of 1933, as amended, pursuant to Section 4(a)(2) thereof as a transaction by an issuer not involving a public offering.

Stock Performance Graph

As a smaller reporting company, we are not required to provide the information requested by this item pursuant to Item 201(e) of Regulation S-K.

Item 6. Selected Financial Data

As a smaller reporting company, we are not required to provide the information requested by this item pursuant to Item 301(c) of Regulation S-K.

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion and analysis of our financial condition and results of operations together with our consolidated financial statements and the related notes appearing elsewhere in this Annual Report on Form 10-K. In addition to historical information, some of the information contained in this discussion and analysis or set forth elsewhere in this report, including information with respect to our plans and strategy for our business, future financial performance, expense levels and liquidity sources, includes forward-looking statements that involve risks and uncertainties. You should read the “Risk Factors” section of this report for a discussion of important factors that could cause actual results to differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis.

Overview

We intend to develop and commercialize pacritinib for adult patients with myelofibrosis and potentially additional indications. Where we believe it may be beneficial, we intend to evaluate additional collaborations to broaden and accelerate clinical trial development and potential commercialization of our product candidates. We plan to continue to seek out additional product candidates in an opportunistic manner.

We have funded our operations through the sale of equity securities, funding received from our licensees and collaborators, debt financing and, to a lesser extent, government funding. For 2018 and 2017, we recognized revenues of approximately $26.3 million and $25.1 million , respectively, consisting primarily of license and contract revenue. We do not expect to have sustained profitability for the foreseeable future. We had a net loss of $29.4 million for the year ended December 31, 2018 and an accumulated deficit of $2.2 billion as of December 31, 2018, primarily from expenses incurred in connection with our research programs and from general and administrative costs associated with our operations.

We expect to continue to incur significant expenses and operating losses for at least the next 12 to 24 months. We anticipate that our expenses will increase as we:

• continue our research and clinical development of pacritinib;

• seek regulatory and marketing approvals for pacritinib if we successfully complete the remainder of its anticipated clinical development;

• maintain, protect and expand our intellectual property portfolio; and

Factors Affecting Our Performance

Research and Development Activities

We will need to commit significant time and resources to develop our current and any future product candidates. Our primary product candidate, pacritinib, is currently in clinical development. Many drugs in human clinical trials fail to demonstrate the desired safety and efficacy characteristics. We are unable to provide the nature, timing and estimated costs of the efforts necessary to complete the development of pacritinib because, among other reasons, we cannot predict with any certainty the pace of patient enrollment of our clinical trials, which is a function of many factors, including the availability and proximity of patients with the relevant condition and the availability of the compounds for use in the applicable trials. We rely on third parties to conduct clinical trials, which may result in delays or failure to complete trials if the third parties fail to perform or meet applicable standards. Even after a clinical trial is enrolled, preclinical and clinical data can be interpreted in different ways, which could delay, limit or preclude regulatory approval and advancement of this compound through the development process.

Regulatory agencies, including the FDA and EMA, regulate many aspects of a product candidate’s life cycle, including research and development and preclinical and clinical testing. We or regulatory authorities may suspend clinical trials at any time on the basis that the participants are being exposed to unacceptable health risks. For example, in February 2016, the FDA placed a full clinical hold on pacritinib. Also, in July 2018, we attended a Type B meeting with the FDA to discuss the proposed regulatory pathway for pacritinib. Based on FDA feedback at the meeting and further discussions with the FDA at a Type C meeting in December 2018, we intend to conduct a randomized Phase 3 study of pacritinib in patients with myelofibrosis, which Phase 3 study will require significant time and resources to complete. Even if our drugs progress successfully through initial human testing in clinical trials, they may fail in later stages of development. A number of companies in the pharmaceutical industry, including us, have suffered significant setbacks in advanced clinical trials, even after reporting promising results in earlier trials. For these reasons, among others, we cannot estimate the date on which clinical development of our product candidates will be completed, if ever, or when we will be able to begin commercializing pacritinib to generate material net cash inflows. In order to generate revenue from these compounds, our product candidates need to be developed to a stage that will enable us to commercialize, sell or license related marketing rights to third parties.

We also enter into collaboration agreements for the development and commercialization of our product candidates. We cannot control the amount and timing of resources our collaborators devote to product candidates, which may also result in delays in the development or marketing of products. Because of these risks and uncertainties, we cannot accurately predict when or whether we will successfully complete the development of our product candidates or the ultimate product development cost.

The risks and uncertainties associated with completing development on schedule and the consequences to operations, financial position and liquidity if the project is not timely completed are discussed in more detail in our risk factors, which can be found in Part I, Item 1A, “Risk Factors” of this report.

Exclusive License and Collaboration Agreement with Servier

In April 2017 we amended and restated in its entirety the Exclusive License and Collaboration Agreement, or the Original Agreement, entered into with Servier in September 2014, related to PIXUVRI. Prior to the April 2017 entry into the Restated Agreement with Servier, we sold PIXUVRI primarily through a limited number of wholesale distributors. Gross sales is defined as our contracted reimbursement price in each country. Product sales, net, represents gross sales, net of provisions for distributor discounts, estimated government-mandated discounts and rebates, trade discounts and estimated product returns. Following the entry into the Restated Agreement, we no longer had product sales and Servier assumed responsibility for distribution of PIXUVRI in countries other than the U.S.

Our license and contract revenues include the earned amount of upfront payments and milestone payments under our product collaborations. In connection with the April 2017 execution of the Restated Agreement with Servier, we allocated and recorded $11.5 million and $1.3 million of the upfront payment received to license revenue and deferred revenue, respectively. The remaining deferred revenue balance as of the date of the Restated Agreement relating to the upfront payment under the Original Agreement was $0.6 million, which, along with the $1.3 million of deferred revenue allocated from the Restated Agreement as mentioned above, is being recognized as revenue using an input measure. Following our July 2018 announcement that PIXUVRI plus rituximab did not show a statistically significant improvement in progression-free survival compared to gemcitabine plus rituximab, the deferred revenue balance was fully recognized as revenue as of December 31, 2018. In February 2019, we and Servier mutually agreed to terminate our collaborative agreement. For additional information on our agreements with Servier, see Part I, Item 1, “Business - License Agreements - Servier” of this report. Other than

amounts we are entitled to or may become entitled to pursuant to our termination agreement with Servier, we do not anticipate additional revenues or payments from Servier relating to PIXUVRI.

Financial summary

Our revenues are generated from license and development services agreements. We had PIXUVRI sales prior to April 2017 when we entered into the Restated Agreement with Servier. Our license and contract revenues reflect the earned amount of upfront payments and milestone payments under our product collaborations. Total revenues were $26.3 million and $25.1 million for the years ended December 31, 2018 and 2017, respectively. Loss from operations was $32.9 million and $39.5 million for the years ended December 31, 2018 and 2017, respectively. Results of operations may vary substantially from year to year and from quarter to quarter and, as a result, you should not rely on them as being indicative of our future performance.

As of December 31, 2018, we had cash, cash equivalents and short-term investments of $67.0 million .

Results of Operations

Years ended December 31, 2018 and 2017

Product sales, net. Product sales, net from PIXUVRI were $0.9 million for the year ended December 31, 2017. We had no product sales for the year ended December 31, 2018 due to our entry into the Restated Agreement with Servier in April 2017.

License and contract revenue. License and contract revenue was as follows (in thousands):



		Years ended December 31,
		2018		2017
Servier	Milestone and license revenue	$	3,397	$	12,665
	Development services revenue	1,759		1,098
	Royalty revenue	765		530
	Other revenue	369		—
	Total Servier	6,290		14,293

Teva	Milestones revenue	20,000		10,000
	Total Teva	20,000		10,000

Total license and contract revenue		$	26,290	$	24,293

Servier

Milestone and license revenue for the year ended December 31, 2018 includes €3.0 million of milestone revenue (or $3.4 million using the currency exchange rate as of the date the milestone was achieved) relating to the attainment of a regulatory milestone in November 2018 under the Restated Agreement. Milestone and license revenue for the year ended December 31, 2017 includes an $11.5 million license revenue allocated from the upfront payment we received in connection with the Restated Agreement as well as a €1.0 million milestone revenue (or $1.2 million using the currency exchange rate as of the date the milestone was achieved) relating to the attainment of a regulatory milestone in September 2017.

Development services revenue for the year ended December 31, 2018 included $1.4 million of revenue recognized from the upfront payments we received in connection with the Restated Agreement and the Original Agreement with Servier. Such revenue during the same period in 2017 was $0.6 million. In addition, we recorded revenue of $0.3 million during the year ended December 31, 2018 for the reimbursement of pharmacovigilance expenses under the Restated Agreement. We recorded revenue of $0.4 million for the year ended December 31, 2017 for the reimbursement of expenses related to commercialization transition under the Restated Agreement. In February 2016, we entered into an agreement with one of Servier's affiliates whereby we conducted a pharmacokinetic sub-study on behalf of Servier in conjunction with our ongoing clinical trial, PIX-306. In relation to this study, we recorded $0.1 million of expense reimbursements as development services revenue for the year ended December 31, 2017. There was no such revenue during the year ended December 31, 2018 as the pharmacokinetic sub-study was completed in September 2017.

Royalty revenue under the terms of the Restated Agreement and the Original Agreement for the years ended December 31, 2018 and 2017 was $0.8 million and $0.5 million, respectively.

Other revenue for the year ended December 31, 2018 relates to the sale of PIXUVRI drug product to Servier, which had previously been written off. There was no such revenue for the year ended December 31, 2017.

Teva

For the year ended December 31, 2018 , we recognized $10.0 million in revenue upon the achievement of a milestone in January 2018 for FDA approval of TRISENOX for first line treatment of acute promyelocytic leukemia. In addition, we recognized $10.0 million in revenue upon the achievement of a worldwide net sales milestone of TRISENOX in December 2018, which is included in Receivables from license and development services arrangements in our consolidated balance sheet.

For the year ended December 31, 2017 , we recognized a $10.0 million revenue upon the achievement of a worldwide net sales milestone of TRISENOX.

Operating costs and expenses

Cost of product sold. Cost of product sold relates to PIXUVRI and includes royalty expenses payable under our agreement with the University of Vermont and the Novartis Termination Agreement. For additional information, see Part II, Item 8, "Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements - Note 10. Collaboration, Licensing and Milestone Agreements ". Cost of product sold for the year ended December 31, 2018 was $0.9 million and included a $0.5 million provision for excess, obsolete or unsaleable inventory as well as royalty expenses of $0.4 million. Cost of product sold for the year ended December 31, 2017 was $0.4 million, which included royalty expenses of $0.3 million. The increase in cost of product sold for the year ended December 31, 2018 compared to the same period in 2017 was primarily related to the provision for excess, obsolete or unsalable inventory.

Research and development expenses. Our research and development expenses for compounds under development and preclinical development were as follows (in thousands):



	Years ended December 31,
	2018		2017
Compounds under development:
PIXUVRI	$	5,998	$	7,419
Pacritinib	17,991		13,135
Tosedostat	100		(3		)
Operating expenses	12,347		12,268
Research and preclinical development	31		47
Total research and development expenses	$	36,467	$	32,866

Costs for our compounds include external direct expenses such as principal investigator fees, charges from contract research organizations, or CROs, and contract manufacturing fees incurred for preclinical, clinical, manufacturing and regulatory activities associated with preparing the compounds for submissions of NDAs or similar regulatory filings to the FDA, the EMA or other regulatory agencies outside the U.S. and Europe, as well as upfront license fees for acquired technology. Subsequent to receiving a positive opinion for conditional approval of PIXUVRI in the E.U. from the EMA’s CHMP, costs associated with commercial batch production, quality control, stability testing, and certain other manufacturing costs of PIXUVRI were capitalized as inventory. Operating expenses include personnel costs (which include non-cash stock-based compensation of $2.0 million and $0.9 million for the year ended December 31, 2018 and 2017, respectively) and an allocation of occupancy, depreciation and amortization expenses associated with developing these compounds. Research and preclinical development costs primarily include costs associated with external laboratory services associated with the compound under development by Aequus Biopharma, Inc. We are not able to capture the total cost of each compound because we do not allocate operating expenses to all of our compounds. External direct costs incurred by us as of December 31, 2018 were $133.9 million for PIXUVRI (excluding costs prior to our 2004 merger with Novuspharma S.p.A, formerly a public pharmaceutical company located in Italy), $146.3 million for pacritinib (excluding costs for pacritinib prior to our acquisition of certain assets from S*BIO in May 2012 and $29.1 million of in-process research and development expenses associated with the acquisition of certain assets from S*BIO) and $14.0 million for tosedostat (excluding costs for tosedostat prior to our co-development and license agreement with Chroma Therapeutics Limited, or Chroma, in 2011 and $21.9 million of in-process

research and development expenses associated with the acquisition of certain assets from Chroma). We have ceased development of tosedostat and do not anticipate incurring additional material expenses related to this terminated program.

Research and development expenses increased to $36.5 million for the year ended December 31, 2018 compared to $32.9 million for the year ended December 31, 2017. The increase of $3.6 million was primarily attributable to a $6.4 million increase in the pacritinib Phase 2 dosing clinical study which began in the second quarter of 2017 and a $2.5 million increase in other pacritinib development costs, offset by a $2.1 million decrease in expenses for the completion of two pacritinib Phase 3 clinical studies and a $1.9 million decrease in the manufacture of pacritinib, as well as a $1.4 million reduction in expenses related to the PIX306 clinical study due to completion of the PIXUVRI program.

Selling, general and administrative expenses. Selling, general and administrative expenses were $21.2 million for the year ended December 31, 2018 compared to $31.4 million for the year ended December 31, 2017. The decrease in 2018 from 2017 was primarily due to decreases of $3.7 million in personnel costs, $2.3 million primarily related to legal fees, $2.3 million related to occupancy costs as well as a loss associated with the December 2017 sublease of approximately 44,000 square feet of our office space and $1.9 million related to litigation settlement.

Restructuring expenses. In December 2018, we announced a plan to reduce our workforce in order to improve efficiencies, reduce costs within the organization and preserve capital for pacritinib development. As a result, we recorded $0.7 million of employee separation costs for the year ended December 31, 2018. We expect to incur an additional $0.8 million in employee separation costs in 2019. Cost savings of approximately $20.0 million primarily associated with reduced employee expenses are expected over the next three years. See Part II, Item 8, "Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements - Note 11. Restructuring Activities " for further details.

Non-operating income and expenses

Interest income. Interest income was $1.2 million for the year ended December 31, 2018, primarily related to our short-term investments and cash equivalent securities. There was no such interest income in 2017.

Interest expense. Interest expense was $1.2 million and $1.9 million for the year ended December 31, 2018 and 2017, respectively. Interest expense was primarily related to our secured term loans. The decrease between periods primarily relates to a lower average interest rate in 2018 than in 2017 and, to a lesser extent, a lower loan principal balance outstanding in 2018 compared to 2017. See Part II, Item 8, "Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements - Note 7. Long-term Debt " for further details.

Amortization of debt discount and issuance costs. Amortization of debt discount and issuance costs for the years ended December 31, 2018 and 2017 was primarily related to our senior secured term loans.

Foreign exchange (loss) gain. We had a foreign exchange loss of $0.2 million for the year ended December 31, 2018 and a foreign exchange gain of $0.8 million for the year ended December 31, 2017. The variances were due to fluctuations in foreign currency exchange rates, primarily related to operations in our European subsidiary as well as assets and liabilities denominated in foreign currencies.

Other non-operating income (expense). Other non-operating income for the year ended December 31, 2018 includes a

$4.3 million gain on the dissolution of our foreign branch, primarily relating to the release of cumulative translation adjustment. Other non-operating expense of $0.1 million for the year ended December 31, 2017 primarily relates to a loss on debt extinguishment in connection with the repayment of our senior secured term loan from Hercules. See Part II, Item 8, "Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements - Note 7. Long-term Debt " for further details.

Deemed dividends on preferred stock. Deemed dividends on preferred stock of approximately $0.1 million for the year ended December 31, 2018 were related to the issuance of Series O Preferred Stock in February 2018. Deemed dividends on preferred stock of $4.4 million for the year ended December 31, 2017 were related to the issuance of Series N Preferred Stock in June 2017. See Part II, Item 8, "Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements - Note 8. Equity Transactions " for further details.

Liquidity and Capital Resources

Sources of Liquidity

We have funded our operations from proceeds from sales and issuance of equity securities, payments pursuant to license and collaboration agreements and the incurrence of debt. As of December 31, 2018, we had $67.0 million in cash, cash equivalents and short-term investments.

Common Stock Offering . In February 2018, we offered and sold 23.0 million shares of common stock at a $3.00 per share price. The net proceeds from the offering, after deducting underwriting commissions and discounts and other offering costs were approximately $64.2 million. We have a sales agreement in place with Cowen to sell up to $50.0 million worth of shares of our common stock, from time to time, through an “at-the-market” equity offering program under which Cowen will act as sales agent. As of the date of this report, we have not made any sales of our common stock through the equity offering program with Cowen.

Loan Agreement . In November 2017, we entered into a Loan and Security Agreement with Silicon Valley Bank, or SVB, which agreement was amended in May 2018, the proceeds of which were partially used to repay in full all outstanding indebtedness under our Loan and Security Agreement, dated March 26, 2013, as amended, with Hercules Technology Growth Capital, Inc., or Hercules (and certain of its affiliates). As of December 31, 2018, we had an outstanding principal balance under our secured term loan agreement of $15.6 million. After the initial 12 months of interest-only period through November 1, 2018, we are required to pay interest plus principal payments for 36 months, in the approximate amount of $0.5 million per month, with the final principal plus interest payment totaling approximately $0.4 million as well as a back-end fee of $1.4 million on November 1, 2021. These borrowings are secured by a first priority security interest on substantially all of our personal property except our intellectual property and subject to certain other exceptions. In addition, the secured term loan agreement requires us to comply with restrictive covenants, including those that limit our operating flexibility and ability to borrow additional funds. A failure to make a required loan payment or an uncured covenant breach could lead to an event of default, and in such case, all amounts then outstanding may become due and payable immediately.

Historical Cash Flows

Net cash used in operating activities. Net cash used in operating activities was $39.8 million during the year ended December 31, 2018 compared to $39.3 million for the same period in 2017. While the amounts of net cash used between the two periods remained consistent, we received a $13.1 million upfront payment from Servier in connection with the Restated Agreement and also collected $7.8 million in 2016 receivables from Servier during 2017; we had no such receipts during 2018. These cash receipts in 2017 were offset by larger cash payments made during 2017 compared to 2018.

Net cash used in investing activities. Net cash used in investing activities of $30.5 million during the year ended December 31, 2018 was primarily due to purchases of short-term investments. There were no material investing activities during the year ended 2017.

Net cash provided by financing activities. Net cash provided by financing activities was $63.5 million and $39.0 million during the year ended December 31, 2018 and 2017, respectively. The increase was primarily due to the higher amount of net proceeds from our February 2018 offering of common stock compared to those from our June 2017 offering of Series N preferred stock.

In October 2016, we resumed primary responsibility for the development and commercialization of pacritinib as a result of the termination of the Pacritinib License Agreement. We currently have no commitments for additional financing to fund the development and commercial launch of pacritinib, and we may need to seek additional funding. The development and commercialization of a major product candidate like pacritinib without a collaborative partner will require a substantial amount of our time and financial resources, and as a result, we could experience a decrease in our liquidity and a new demand on our capital resources. For additional information relating to the Pacritinib License Agreement, see Part I, Item 1, “Business - License Agreements - Baxalta” of this report.

Capital Resources

We have prepared our consolidated financial statements assuming that we will continue as a going concern, which contemplates realization of assets and the satisfaction of liabilities in the normal course of business. We believe that our present financial resources will be sufficient to fund our operations through the second quarter of 2020. However, we have incurred net

losses since inception and expect to generate losses for the foreseeable future, primarily due to research and development costs for pacritinib. Because of our reacquisition of worldwide rights for pacritinib, we are no longer eligible to receive cost sharing or milestone payments for pacritinib’s development from Baxalta, and losses related to research and development for pacritinib have increased. We have historically funded our operations through equity financings, borrowings and funds obtained under product collaborations, any or all of which may not be available to us in the future. As of December 31, 2018, our available cash, cash equivalents and short-term investment totaled $67.0 million . We had an outstanding principal balance under our senior secured term loan agreement of $15.6 million .

Financial resource forecasts are subject to change as a result of a variety of risks and uncertainties. Changes in manufacturing, developments in and expenses associated with our clinical trials and the other factors identified under “ Capital Requirements ” below may consume capital resources earlier than planned. Additionally, following our and Servier’s mutual termination of our collaborative agreement, other than amounts we are entitled to or may become entitled to pursuant our termination agreement, we do not anticipate additional revenues or payments from Servier relating to PIXUVRI. Although we received a $10.0 million milestone payment from Teva Pharmaceutical Industries Ltd. in February 2019 relating to the achievement of a worldwide net sales milestone of TRISENOX, achievement of the remaining milestones is uncertain at this time. Due to these and other factors, the foregoing forecast for the period for which we will have sufficient resources to fund our operations may be inaccurate.

Capital Requirements

We may need to acquire additional funds in order to develop our business. We may seek to raise such capital through public or private equity financings, partnerships, collaborations, joint ventures, disposition of assets, debt financings or restructurings, bank borrowings or other sources of financing. However, we have a limited number of authorized shares of common stock available for issuance and additional funding may not be available on favorable terms or at all. If additional funds are raised by issuing equity securities, substantial dilution to existing stockholders may result. If we fail to obtain additional capital when needed, our ability to operate as a going concern will be harmed, and we may be required to delay, scale back or eliminate some or all of our research and development programs and/or reduce our selling, general and administrative expenses, be unable to attract and retain highly qualified personnel, be unable to obtain and maintain contracts necessary to continue our operations and at affordable rates with competitive terms, refrain from making our contractually required payments when due (including debt payments) and/or be forced to cease operations, liquidate our assets and possibly seek bankruptcy protection. Our future capital requirements will depend on many factors, including:


•	developments in and expenses associated with our research and development activities;


•	changes in manufacturing;


•	regulatory approval developments;


•	our ability to generate sales of any approved product;


•	our ability to execute appropriate collaborations for development and commercialization activities;


•	our ability to reach milestones triggering payments under certain of our contractual arrangements;


•	acquisitions of compounds or other assets;


•	litigation and other disputes;


•	competitive market developments; and


•	other unplanned business developments.

Impact of Inflation

In the opinion of management, inflation has not had a material effect on our operations including selling prices, capital expenditures and operating expenses.

Critical Accounting Estimates

Management makes certain judgments and uses certain estimates and assumptions when applying accounting principles generally accepted in the U.S. in the preparation of our consolidated financial statements. We evaluate our estimates and judgments on an on-going basis and base our estimates on historical experience and on assumptions that we believe to be reasonable under the circumstances. Our experience and assumptions form the basis for our judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may vary from what we anticipate and different assumptions or estimates about the future could change our reported results. We believe the following estimates are the most critical to us, in that they are important to the portrayal of our consolidated financial statements and require our subjective or complex judgment in the preparation of our consolidated financial statements:

Revenue Recognition

We recognize license and contract revenue under license and development services arrangements that are within the scope of Accounting Standards Codification 606 - Revenue From Contracts With Customers, or ASC 606, which was adopted on January 1, 2018. The terms of these agreements may contain multiple, distinct performance obligations, which may include licenses and research and development activities. We apply the five-step model to arrangements that meet the definition of a contract under ASC 606 including when it is probable that we will collect the consideration we are entitled to in exchange for goods or services we transfer to the customer. At contract inception, we identify goods or services promised within each contract and determine those that are performance obligations and assess whether each promised good or service is distinct. Prior to recognizing revenue, we make estimates of the transaction price, including any variable consideration that is subject to a constraint. Amounts of variable consideration are included in the transaction price to the extent that it is probable that there will not be a significant reversal in the amount of cumulative revenue recognized and when the uncertainty associated with the variable consideration is subsequently resolved. Variable consideration may include nonrefundable upfront license fees, payments for research and development activities, reimbursement of certain third-party costs, payments based upon the achievement of specified milestones and royalty payments based on product sales derived from the contract. These assessments as well as the determination of variable consideration required under ASC 606 involve significant judgment and estimates made by us, which impacts the amount and timing of revenue we recognize in our consolidated results of operations.

Share-based Compensation Expense

Share-based compensation expense for all share-based payment awards made to employees and directors is recognized and measured based on estimated fair values. For option valuations, we have elected to utilize the Black-Scholes valuation method in order to estimate the fair value of options on the date of grant. The risk-free interest rate is based on the implied yield currently available for U.S. Treasury securities at maturity with an equivalent term. We have not declared or paid dividends on our common stock and do not currently expect to do so in the future. The expected term of options represents the period that our share-based awards are expected to be outstanding and was determined based on historical weighted average holding periods and projected holding periods for the remaining unexercised options. Consideration was given to the contractual terms of our share-based awards, vesting schedules and expectations of future employee behavior. Expected volatility is based on the annualized daily historical volatility, including consideration of the implied volatility and market prices of traded options for comparable entities within our industry. These assumptions underlying the Black-Scholes valuation model involve management’s best estimates.

Generally accepted accounting principles for share-based compensation also require that we recognize compensation expense for only the portion of awards expected to vest. Therefore, we apply an estimated forfeiture rate that we derive from historical employee termination behavior. If the actual number of forfeitures differs from our estimates, adjustments to compensation expense may be required in future periods. For performance-based awards that do not include market-based conditions, we record share-based compensation expense only when the performance-based milestone is deemed probable of achievement. We utilize both quantitative and qualitative criteria to judge whether milestones are probable of achievement. For awards with market-based performance conditions, we recognize the grant-date fair value of the award over the derived service period regardless of whether the underlying performance condition is met.

Contingencies

On a quarterly basis, we review the status of each significant matter and assess its potential financial exposure. If the potential loss from any claim, asserted or unasserted, or legal proceeding is considered probable and the amount can be reasonably estimated, we accrue a liability for the estimated loss. Significant judgment is required in both the determination of probability and the determination as to whether an exposure is reasonably estimable. Because of uncertainties related to these matters, accruals are based only on the best information available at the time. As additional information becomes available, we reassess the potential liability related to pending claims and litigation and may revise our estimates. These revisions in the

estimates of the potential liabilities could have a material impact on our consolidated results of operations and financial position.

Recently Issued and Adopted Accounting Pronouncements

For a description of recently issued and adopted accounting pronouncements, including the expected effects on our results of operations and financial condition, refer to Part II, Item 8, "Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements - Note 1. Description of Business and Summary of Significant Accounting Policies ", which is incorporated herein by reference.

Item 7A. Quantitative and Qualitative Disclosures about Market Risk

As a smaller reporting company, we are not required to provide the information requested by this item pursuant to Item 305(e) of Regulation S-K.

Item 8. Financial Statements and Supplementary Data

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS



	Page
Report of Ernst & Young LLP, Independent Registered Public Accounting Firm	58
Report of Marcum LLP, Independent Registered Public Accounting Firm	59
Consolidated Balance Sheets	60
Consolidated Statements of Operations	61
Consolidated Statements of Comprehensive Loss	62
Consolidated Statements of Stockholders' Equity	63
Consolidated Statements of Cash Flows	64
Notes to Consolidated Financial Statements	66

REPORT OF ERNST & YOUNG LLP, INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and the Board of Directors

CTI BioPharma Corp.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheet of CTI BioPharma Corp. (the Company) as of December 31, 2018, the related consolidated statements of operations, comprehensive loss, stockholders’ equity, and cash flows for the year then ended, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2018, and the results of its operations and its cash flows for the year then ended in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2018, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated March 13, 2019, expressed an unqualified opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audit provides a reasonable basis for our opinion.

/s/ Ernst & Young LLP

We have served as the Company’s auditor since 2018.

Seattle, Washington

March 13, 2019

REPORT OF MARCUM LLP, INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and Board of Directors of

CTI BioPharma Corp.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheet of CTI BioPharma Corp. (the “Company”) as of December 31, 2017, the related consolidated statements of operations, comprehensive loss, shareholders’ equity and cash flows for the year then ended. Our audit also included the related notes and financial statement schedule listed in the Index at Item 15(a)(ii) (collectively referred to as the “financial statements”) for the year then ended. In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2017, and the results of its operations and its cash flows for the year then ended, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

/s/ Marcum LLP

Marcum LLP

We have served as the Company’s auditor from 2005 to 2018.

San Francisco, CA

March 7, 2018

CTI BIOPHARMA CORP.

CONSOLIDATED BALANCE SHEETS

(In thousands, except share amounts)



	December 31, 2018			December 31, 2017
ASSETS
Current assets:
Cash and cash equivalents	$	36,439		$	27,218
Restricted cash	—			16,000
Short-term investments	30,599			—
Receivables from license and development services arrangements	13,679			1,278
Prepaid expenses and other current assets	1,775			2,428
Total current assets	82,492			46,924
Property and equipment, net	1,793			2,365
Other assets	5,547			5,597
Total assets	$	89,832		$	54,886

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	4,498		$	2,588
Accrued expenses	12,852			13,890
Current portion of deferred revenue	—			912
Current portion of long-term debt	4,812			444
Other current liabilities	893			1,424
Total current liabilities	23,055			19,258
Deferred revenue, less current portion	—			494
Long-term debt, less current portion	9,267			13,575
Other liabilities	4,571			5,469
Total liabilities	36,893			38,796
Commitments and contingencies (Note 18)
Stockholders' equity:
Preferred stock, $0.001 par value per share:
Authorized shares - 33,333
Series O Preferred Stock, 12,575 shares and 0 shares issued and outstanding as of December 31, 2018 and 2017, respectively (Aggregate liquidation preference of $25,150 and $0 as of December 31, 2018 and 2017, respectively)	—			—
Series N Preferred Stock, 0 shares and 575 shares issued and outstanding as of December 31, 2018 and 2017, respectively (Aggregate liquidation preference of $0 and $1,150 as of December 31, 2018 and 2017, respectively)	—			—
Common stock, $0.001 par value per share:
Authorized shares - 101,500,000 and 81,500,000 as of December 31, 2018 and 2017, respectively
Issued and outstanding shares - 57,986,075 and 42,969,494 as of December 31, 2018 and 2017, respectively	58			43
Additional paid-in capital	2,294,025			2,223,388
Accumulated other comprehensive loss	(10,643		)	(6,272		)
Accumulated deficit	(2,224,746		)	(2,195,346		)
Total CTI stockholders' equity	58,694			21,813
Noncontrolling interest	(5,755		)	(5,723		)
Total stockholders' equity	52,939			16,090
Total liabilities and stockholders' equity	$	89,832		$	54,886

See accompanying notes.

CTI BIOPHARMA CORP.

CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share amounts)



	Year Ended December 31,
	2018			2017
Revenues:
Product sales, net	$	—		$	853
License and contract revenue	26,290			24,293
Total revenues	26,290			25,146
Operating costs and expenses:
Cost of product sold	879			364
Research and development	36,467			32,866
Selling, general and administrative	21,183			31,435
Restructuring expenses	660			—
Total operating costs and expenses	59,189			64,665
Loss from operations	(32,899		)	(39,519		)
Non-operating expense:
Interest income	1,219			—
Interest expense	(1,209		)	(1,872		)
Amortization of debt discount and issuance costs	(525		)	(163		)
Foreign exchange (loss) gain	(233		)	817
Other non-operating income (expense)	4,295			(94		)
Total non-operating income (expense), net	3,547			(1,312		)
Net loss before noncontrolling interest	(29,352		)	(40,831		)
Noncontrolling interest	32			161
Net loss	(29,320		)	(40,670		)
Deemed dividends on preferred stock	(80		)	(4,350		)
Net loss attributable to common stockholders	$	(29,400	)	$	(45,020	)
Basic and diluted net loss per common share	$	(0.52	)	$	(1.24	)
Shares used in calculation of basic and diluted net loss per common share	56,073			36,445

See accompanying notes.

CTI BIOPHARMA CORP.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

(In thousands)



	Year Ended December 31,
	2018			2017
Net loss before noncontrolling interest	$	(29,352	)	$	(40,831	)
Other comprehensive (loss) income:
Foreign currency translation adjustments	(2,843		)	(3,927		)
Unrealized foreign exchange (loss) gain on intercompany balance	(1,513		)	4,303
Net unrealized (loss) gain on securities available-for-sale	(15		)	7
Other comprehensive (loss) income	(4,371		)	383
Comprehensive loss	(33,723		)	(40,448		)
Comprehensive loss attributable to noncontrolling interest	32			161
Comprehensive loss attributable to CTI	$	(33,691	)	$	(40,287	)

See accompanying notes.

CTI BIOPHARMA CORP.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(In thousands)



										Additional			Accumulated Other									Total
	Preferred Stock				Common Stock					Paid-in			Comprehensive			Accumulated			Noncontrolling			Stockholders'
	Shares		Amount		Shares		Amount			Capital			Income (Loss)			Deficit			Interest			Equity
Balance at January 1, 2017	—		$	—	28,229		$	28		$	2,170,272		$	(6,655	)	$	(2,150,326	)	$	(5,562	)	$	7,757
Issuance of preferred stock, net of issuance costs	22.5		—		—		—			42,669			—			—			—			42,669
Conversion of preferred stock to common stock	(21.9	)	—		14,616		15			(15		)	—			—			—			—
Value of beneficial conversion features related to preferred stock	—		—		—		—			4,350			—			(4,350		)	—			—
Issuance of warrants	—		—		—		—			470			—			—			—			470
Equity-based compensation	—		—		150		—			5,746			—			—			—			5,746
Noncontrolling interest	—		—		—		—			—			—			—			(161		)	(161		)
Other	—		—		(26	)	—			(104		)	—			—			—			(104		)
Net loss for the year ended December 31, 2017	—		—		—		—			—			—			(40,670		)	—			(40,670		)
Other comprehensive income	—		—		—		—			—			383			—			—			383
Balance at December 31, 2017	0.6		$	—	42,969		$	43		$	2,223,388		$	(6,272	)	$	(2,195,346	)	$	(5,723	)	$	16,090
Issuance of common stock, net of issuance costs	—		—		23,000		23			64,147			—			—			—			64,170
Exchange of common stock for preferred stock	12.0		—		(8,000	)	(8		)	8			—			—			—			—
Value of beneficial conversion features related to preferred stock	—		—		—		—			80			—			(80		)	—			—
Equity-based compensation	—		—		—		—			6,369			—			—			—			6,369
Noncontrolling interest	—		—		—		—			—			—			—			(32		)	(32		)
Other	—		—		17		—			33			—			—			—			33
Net loss for the year ended December 31, 2018	—		—		—		—			—			—			(29,320		)	—			(29,320		)
Other comprehensive loss	—		—		—		—			—			(4,371		)	—			—			(4,371		)
Balance at December 31, 2018	12.6		$	—	57,986		$	58		$	2,294,025		$	(10,643	)	$	(2,224,746	)	$	(5,755	)	$	52,939

See accompanying notes.

CTI BIOPHARMA CORP.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)



	Year Ended December 31,
	2018			2017
Operating activities
Net loss before noncontrolling interest	$	(29,352	)	$	(40,831	)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation expense	6,369			5,746
Depreciation and amortization	593			717
Loss on debt extinguishment	—			163
Loss on sublease	—			1,584
Gain on dissolution of a foreign entity	(4,288		)	—
Noncash interest expense	525			163
Noncash rent benefit	(1,424		)	(648		)
Unrealized foreign exchange loss	362			—
Other	432			(18		)
Changes in operating assets and liabilities:
Accounts receivable	4			402
Receivables from license and development services arrangements	(12,389		)	6,579
Inventory	—			1,120
Prepaid expenses and other current assets	253			326
Other assets	(420		)	63
Accounts payable	1,869			(4,730		)
Accrued expenses	(946		)	(11,096		)
Deferred revenue	(1,407		)	790
Other liabilities	(5		)	374
Net cash used in operating activities	(39,824		)	(39,296		)
Investing activities
Purchases of property and equipment	(33		)	(49		)
Purchases of short-term investments	(42,067		)	—
Proceeds from maturities of short-term investments	11,610			—
Proceeds from sale of available-for-sale securities	—			11
Net cash used in investing activities	(30,490		)	(38		)
Financing activities
Proceeds from common stock offering, net of issuance costs	64,170			—
Cash paid for at-the-market equity offering issuance costs	(168		)	—
Proceeds from issuance of preferred stock, net of issuance costs	—			42,669
Proceeds from Silicon Valley Bank debt, net of issuance costs	(100		)	15,971
Repayment of debt	(444		)	(19,548		)
Payment of tax withholding obligations related to stock compensation	(21		)	(87		)
Proceeds from stock option exercises	46			—
Proceeds from ESPP stock issuance	8			10
Cash paid for repurchase of fractional shares	—			(36		)
Net cash provided by financing activities	63,491			38,979
Effect of exchange rate changes on cash and cash equivalents	44			(429		)
Net decrease in cash, cash equivalents and restricted cash	(6,779		)	(784		)
Cash, cash equivalents and restricted cash at beginning of year	43,218			44,002
Cash, cash equivalents and restricted cash at end of year	$	36,439		$	43,218

See accompanying notes.

CONSOLIDATED STATEMENTS OF CASH FLOWS —(Continued)

(In thousands)



	Year Ended December 31,
	2018		2017
Supplemental disclosure of cash flow information
Cash paid during the period for interest	$	1,197	$	1,970

Supplemental disclosure of noncash financing and investing activities
Exchange of common stock and preferred stock for preferred stock	$	24,080	$	—
Conversion of preferred stock to common stock	$	—	$	41,579

See accompanying notes.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Description of Business and Summary of Significant Accounting Policies

CTI BioPharma Corp., together with its wholly-owned subsidiary, also referred to collectively in this Annual Report on Form 10-K as “we,” “us,” “our,” the “Company” and “CTI,” is a biopharmaceutical company focused on the acquisition, development and commercialization of novel targeted therapies for blood-related cancers that offer a unique benefit to patients and their health care providers. Our goal is to build a profitable company by generating income from products we develop and commercialize, either alone or with partners. We concentrate our efforts on treatments that target blood-related cancers where there is an unmet medical need. In particular, we are primarily focused on evaluating pacritinib for the treatment of adult patients with myelofibrosis.

We operate in a highly regulated and competitive environment. The manufacturing and marketing of pharmaceutical products requires approval from, and is subject to, ongoing oversight by the Food and Drug Administration, or the FDA, in the U.S., the European Medicines Agency, or the EMA, in the European Union, or the E.U., and comparable agencies in other countries. Obtaining approval for a new therapeutic product is never certain, may take many years and may involve expenditure of substantial resources.

Principles of Consolidation

The accompanying consolidated financial statements include the accounts of CTI and its wholly-owned subsidiary, CTI Life Sciences Limited, or CTILS. As of December 31, 2018 , we also had an approximately 60% interest in our majority-owned subsidiary, Aequus Biopharma, Inc., or Aequus. The remaining interest in Aequus not held by CTI is reported as noncontrolling interest in the consolidated financial statements.

All intercompany transactions and balances are eliminated in consolidation.

Reincorporation Merger

In January 2018, we effected a reincorporation merger, or the Reincorporation, following approval by our Board and our shareholders at our Special Meeting of Shareholders held on January 24, 2018, for the sole purpose of changing the state of incorporation from the State of Washington to the State of Delaware. The Reincorporation resulted in reclassification of certain carrying amounts of our preferred stock and common stock to additional paid-in capital since, prior to the Reincorporation, our preferred stock and common stock had no par value. Subsequent to the Reincorporation, our preferred stock and common stock each have a par value of $0.001 per share. There was no impact on our assets and liabilities as a result of the Reincorporation.

Liquidity

The accompanying consolidated financial statements have been prepared assuming that we will continue as a going concern, which contemplates realization of assets and the satisfaction of liabilities in the normal course of business within one year after the date the consolidated financial statements are issued. Our management evaluates whether there are conditions or events, considered in aggregate, that raise substantial doubt about our ability to continue as a going concern within one year after the date that the financial statements are issued.

We will need to continue to conduct research, development, testing and regulatory compliance activities with respect to our compounds and ensure the procurement of manufacturing and drug supply services, the costs of which, together with projected general and administrative expenses, is expected to result in operating losses for the foreseeable future. In October 2016, we resumed primary responsibility for the development and commercialization of pacritinib as a result of the termination of a Development, Commercialization and License Agreement, or the Pacritinib License Agreement, with Baxalta and are no longer eligible to receive cost sharing or milestone payments for pacritinib's development. We have incurred a net operating loss every year since our formation. As of December 31, 2018 , we had an accumulated deficit of $2.2 billion , and we expect to incur net losses for the foreseeable future.

Our available cash, cash equivalents and short-term investments were $67.0 million as of December 31, 2018 . We completed the evaluation about our ability to continue as a going concern as required by Accounting Standards Update No. 2014-15, Presentation of Financial Statements-Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an

Entity's Ability to Continue as a Going Concern. Based on this analysis, we expect that our present financial resources will be sufficient to meet our obligations as they come due and to fund our operations through the second quarter of 2020. We may need to acquire additional funds in order to develop our business. We may seek to raise such capital through public or private equity financings, partnerships, collaborations, joint ventures, disposition of assets, debt financings or restructurings, bank borrowings or other sources of financing. However, we have a limited number of authorized shares of common stock available for issuance and additional funding may not be available on favorable terms or at all. If additional funds are raised by issuing equity securities, substantial dilution to existing stockholders may result. If we fail to obtain additional capital when needed, our ability to operate as a going concern will be harmed, and we may be required to delay, scale back or eliminate some or all of our research and development programs, reduce our selling, general and administrative expenses, be unable to attract and retain highly-qualified personnel, be unable to obtain and maintain contracts necessary to continue our operations and at affordable rates with competitive terms, refrain from making our contractually required payments when due (including debt payments) and/or may be forced to cease operations, liquidate our assets and possibly seek bankruptcy protection. The accompanying consolidated financial statements do not include adjustments, if any, that may result from the outcome of this uncertainty.

Use of Estimates

The preparation of financial statements in conformity with U.S. Generally Accepted Accounting Principles requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. For example, estimates include assumptions used in calculating reserves for excess and obsolete inventory, recording share-based compensation expense, accruals, the allocation of operating expenses, provision for loss contingencies, the fair value of financial instruments, our tax provision and related valuation allowance, and determining the useful lives of fixed assets and potential impairment of long-lived assets. Actual results could differ from those estimates.

Certain Risks, Uncertainties and Concentrations

Our results of operations are subject to foreign currency exchange rate fluctuations primarily due to our activity in Europe. We report the results of our operations in U.S. dollars, while the functional currency of our foreign subsidiaries is the euro. As the net positions of our unhedged foreign currency transactions fluctuate, our earnings might be negatively affected. In addition, the reported carrying value of our euro-denominated assets and liabilities that remain in our European branches and subsidiaries will be affected by fluctuations in the value of the U.S. dollar as compared to the euro. We review our foreign currency risk periodically along with hedging options to mitigate such risk.

We source our drug products for clinical trials from a concentrated group of third-party contractors. If we are unable to obtain sufficient quantities of source materials, manufacture or distribute our products to customers from existing suppliers and service providers, or obtain the materials or services from other suppliers, manufacturers or distributors, certain research and development and sales activities may be delayed.

See Note 15. Customer and Geographic Concentrations for further concentration disclosure.

Fair Value of Financial Instruments

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements are based on a three-tier hierarchy that prioritizes the inputs used to measure fair value. There are three levels of inputs used to measure fair value with Level 1 having the highest priority and Level 3 having the lowest:


•	Level 1—Valuations based on unadjusted quoted prices for identical assets and liabilities in active markets.


•	Level 2—Valuations based on observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.


•	Level 3—Valuations based on unobservable inputs that are supported by little or no market activity, reflecting our own assumptions. These valuations require significant judgment or estimation.

Our cash equivalents and short-term investments are recorded at fair value. As of December 31, 2018 , our cash, cash equivalents and short-term investments consisted of cash, money market funds, U.S. government and agency securities and corporate debt securities. As of December 31, 2017 , our cash and cash equivalents consisted of cash.

We measure the fair value of money market funds based on the closing price reported by a fund sponsor from an actively traded exchange. We value all other securities using broker quotes that utilize observable market inputs. We did not hold cash, cash equivalents and short-term investments categorized as Level 3 assets as of December 31, 2018 and 2017 . The following table summarizes, by major security type, our cash, cash equivalents and short-term investments that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy (in thousands):



	December 31, 2018									December 31, 2017
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Total Estimated Fair Value		Total Estimated Fair Value
Cash	$	919	$	—	$	—		$	919	$	43,218
Level 1 securities:
Money market funds	20,525		—		—			20,525		—
Level 2 securities:
U.S. government and agency securities	15,217		1		(5		)	15,213		—
Corporate debt securities	30,393		1		(13		)	30,381		—
	$	67,054	$	2	$	(18	)	$	67,038	$	43,218
Less: restricted cash								—		(16,000		)
Total cash, cash equivalents and short-term investments								$	67,038	$	27,218

There were no other financial instruments requiring fair value measurement as of December 31, 2018 and 2017 .

At December 31, 2018 and 2017 , the carrying value of our receivables and payables approximated their fair values due to their short-term maturities. The carrying value of our long-term debt approximated its fair value at December 31, 2018 and 2017 based on borrowing rates for similar loans and maturities.

Cash and Cash Equivalents

We consider all highly liquid instruments with original maturities of three months or less at the time acquired to be cash equivalents.

Restricted Cash

Restricted cash represented a legally restricted deposit held as a compensating balance against our senior secured term loan with Silicon Valley Bank, or SVB. Pursuant to the loan and security agreement entered into with SVB in November 2017, we were required to maintain unrestricted and unencumbered cash in an amount equal to at least $16.0 million at all times prior to the occurrence of an event relating to the delivery to SVB of duly executed signatures to a control agreement from Bank of America with respect to all of our accounts maintained with Bank of America. In January 2018, we obtained an amendment from SVB for such requirement and as a result, we no longer have restrictions placed on the cash balance. See Note 7. Long-term Debt for further details regarding our senior secured term loan with SVB.

The following table provides reconciliations of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows.



	December 31, 2018		December 31, 2017
Cash and cash equivalents	$	36,439	$	27,218
Restricted cash	—		16,000
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows	$	36,439	$	43,218

Receivables from License and Development Services Arrangements

Our receivables relate to amounts payable or reimbursable to us under the terms of license and development services arrangements with our partners. The receivable balance as of December 31, 2018 related primarily to a milestone receivable from Servier for the attainment of a regulatory milestone in November 2018 as well as a milestone receivable from Teva for the attainment of a worldwide net sales milestone of TRISENOX in December 2018. The receivable balance as of December 31, 2017 related primarily to the sale of PIXUVRI drug product to Servier. Receivables are reviewed for collectability whenever circumstances indicate that the carrying amount of the receivable may not be recoverable. During the year ended December 31, 2017 , we recorded $1.7 million in bad debt expense related to disputed invoices under the license and development services arrangement with Baxalta. We had no allowance for doubtful accounts as of December 31, 2018 and 2017 .

Italian Value Added Tax Receivable

We historically carried out research and development activities in Italy and incurred value added tax, or VAT, from Italian suppliers on the acquisition of goods and services in Italy. This VAT should be considered as an Input VAT credit. We treated the majority of our sales made in Italy without output VAT (on the basis that the supplies should be considered outside the scope of Italian VAT). This resulted in the value of input VAT exceeding the value of output VAT, and accordingly we submitted a refund claim for the VAT. The Italian Tax Authority, or the ITA, has challenged the treatment of the sales transactions and claimed that the sales transactions made by us should have been subject to output VAT. Our Italian VAT receivable was approximately $4.5 million and $4.8 million as of December 31, 2018 and 2017 , respectively. Substantially all of our VAT receivable is included in Other assets . As disclosed in Note 18. Commitments and Contingencies , the ITA assessed us for additional VAT payments for services we provided in Italy, which we do not believe we owe. We have not recorded an amount in the financial statements for this contingent liability as we do not believe the potential payment of up to €4.2 million (or approximately $4.8 million converted using the currency exchange rate as of December 31, 2018 ), to the ITA is probable at this time.

Property and Equipment

Property and equipment are carried at cost, less accumulated depreciation and amortization. Depreciation commences at the time assets are placed in service. We calculate depreciation using the straight-line method over the estimated useful lives of the assets, ranging from three to five years for assets other than leasehold improvements. We amortize leasehold improvements over the lesser of their useful lives of 10 years or the term of the applicable lease.

Impairment of Long-lived Assets

We review our long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate. If an impairment is indicated, the asset is written down to its estimated fair value based on fair market values.

Leases

We analyze leases at the inception of each agreement for classification as either an operating or capital lease. Certain of our lease agreement terms include rent holidays, rent escalation clauses and incentives for leasehold improvements. We recognize deferred rent relating to incentives for rent holidays and leasehold improvements and amortize the deferred rent over the term of the leases as a reduction of rent expense. For rent escalation clauses, we recognize rent expense equal to the amount of total minimum lease payments on a straight-line basis over the term of the lease. A deferred liability recognized in connection with the December 2017 sublease arrangement is amortized over the term of the sublease as a reduction of rent expense. As discussed in Recently Issued Accounting Guidance below, the new lease accounting guidance, Accounting Standards Codification, or ASC, 842 - Leases , is effective for annual reporting periods (including interim periods within those periods) beginning after December 15, 2018, and we will adopt this guidance on January 1, 2019.

Contingencies

We record liabilities associated with loss contingencies to the extent that we conclude that the occurrence of the contingency is probable and that the amount of the related loss is reasonably estimable. We record income from gain contingencies only upon the realization of assets resulting from the favorable outcome of the contingent event. See Note 10.

Collaboration, Licensing and Milestone Agreements and Note 18. Commitments and Contingencies for further information regarding our current contingencies.

Revenue Recognition

We adopted ASC 606 - Revenue from Contracts with Customers , on January 1, 2018, or the adoption date, using a modified retrospective method. This standard applies to all contracts with customers, except for contracts that are within the scope of other authoritative literature. Under ASC 606, we recognize revenue when a customer obtains control of promised goods or services, in an amount that reflects the consideration which we expect to be entitled in exchange for those goods or services.

To determine revenue recognition for arrangements that we determine are within the scope of ASC 606, we perform the following five steps: (i) identify the contract(s) with a customer, (ii) identify the performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract, and (v) recognize revenue when (or as) we satisfy a performance obligation. We apply the five-step model to arrangements that meet the definition of a contract under ASC 606 including when it is probable that we will collect the consideration we are entitled to in exchange for goods or services we transfer to the customer. At contract inception, we assess the goods or services promised within each contract and determine those that are performance obligations, and assesses whether each promised good or service is distinct. We recognize revenue for the amount of the transaction price that is allocated to the respective performance obligation as the performance obligation is satisfied.

Product sales

In April 2017, Servier was granted an exclusive and sublicensable (subject to certain conditions) royalty-bearing license with respect to the development and commercialization of PIXUVRI for use in pharmaceutical products, or Licensed Products, outside of the U.S. (and its territories and possessions). As a result, we no longer have product sales.

Prior to April 2017, PIXUVRI was sold primarily through a limited number of wholesale distributors. Under ASC 606, we would record product sales upon receipt of the product by health care providers and certain distributors, or the Customers, at which time the Customers obtain control of our product. Product sales are recorded net of applicable reserves for variable considerations, including distributor discounts, estimated government-mandated rebates, trade discounts and estimated product returns. Reserves are established for these variable considerations that are subject to constraints under ASC 606 and are included in the transaction price only to the extent that it is probable that a significant reversal in the amount of the cumulative revenue recognized under the contract will not occur in a future period.

License and Development Services Arrangements

We recognize license and contract revenue under license and development services arrangements that are within the scope of ASC 606. The terms of these agreements may contain multiple performance obligations, which may include licenses and research and development activities. We evaluate these agreements under ASC 606 to determine distinct performance obligations. Prior to recognizing revenue, we make estimates of the transaction price, including any variable consideration that is subject to a constraint. Amounts of variable consideration are included in the transaction price to the extent that it is probable that there will not be a significant reversal in the amount of cumulative revenue recognized and when the uncertainty associated with the variable consideration is subsequently resolved. Variable consideration may include nonrefundable upfront license fees, payments for research and development activities, reimbursement of certain third-party costs, payments based upon the achievement of specified milestones, and royalty payments based on product sales derived from the collaboration. If there are multiple, distinct performance obligations, we allocate the transaction price to each distinct performance obligation based on its relative standalone selling price. Revenue is recognized by measuring the progress toward complete satisfaction of the performance obligations using an input measure in accordance with ASC-340-40, Other Assets and Deferred Costs: Contracts with Customers .

We have determined that our agreement with Servier is within the scope of ASC 606 and that the license and development services separately accounted for under the legacy standard would have remained two distinct performance obligations to Servier under ASC 606. As a result, the deferred revenue balance of $1.4 million as of the adoption date, relating to development services, was recognized as revenue through the end of 2018 using an input measure. In addition, there were no milestones recognized as a cumulative effect adjustment to the opening accumulated deficit balance because we were not yet able to overcome constraints associated with the remaining milestones as of the adoption date. There was no change to the

timing of revenue recognition with respect to royalties. See Note 10. Collaboration, Licensing and Milestone Agreements - Servier for further discussion.

Cost of Product Sold

Cost of product sold includes third-party manufacturing costs, shipping costs, contractual royalties and other costs of PIXUVRI product sold. Cost of product sold also includes allowances, if any, for excess inventory that may expire and become unsalable. Cost of product sold for the year ended December 31, 2018 related to a provision for excess, obsolete or unsaleable inventory as well as contractual royalties as we no longer have product sales as discussed above. Cost of product sold for the year ended December 31, 2017 is related to sales of PIXUVRI and contractual royalties.

Research and Development Expenses

Research and development costs are expensed as incurred in accordance with the FASB ASC 730, Research and Development . Research and development expenses include related salaries and benefits, clinical trial and related manufacturing costs, contract and other outside service fees, and facilities and overhead costs related to our research and development efforts. Research and development expenses also consist of costs incurred for proprietary and collaboration research and development and include activities such as product registries and investigator-sponsored trials. In instances where we enter into agreements with third parties for research and development activities, we may prepay fees for services at the initiation of the contract. We record the prepayment as a prepaid asset and amortize the asset into research and development expense over the period of time the contracted research and development services are performed. Other types of arrangements with third parties may be fixed fee or fee for service, and may include monthly payments or payments upon completion of milestones or receipt of deliverables. We expense upfront license payments related to acquired technologies that have not yet reached technological feasibility and have no alternative future use.

Foreign Currency Translation and Transaction Gains and Losses

We record foreign currency translation adjustments and transaction gains and losses in accordance with ASC 830, Foreign Currency Matters. For our operations that have a functional currency other than the U.S. dollar, gains and losses resulting from the translation of the functional currency into U.S. dollars for financial statement presentation are not included in determining net loss, but are accumulated in the cumulative foreign currency translation adjustment account as a separate component of stockholders’ equity, except for intercompany transactions that are of a short-term nature with entities that are consolidated, combined or accounted for by the equity method in our consolidated financial statements. We have transactions in foreign currencies other than the functional currency. We record transaction gains and losses in our consolidated statements of operations related to the recurring measurement and settlement of such transactions.

The intercompany balance due from CTILS is considered to be of a long-term nature. An unrealized foreign exchange loss of $1.5 million and an unrealized foreign exchange gain of $4.3 million were recorded in the cumulative foreign currency translation adjustment account for the years ended December 31, 2018 and 2017 , respectively. As of December 31, 2018 and 2017 , the intercompany balance due from CTILS was €28.7 million and €26.2 million , respectively (or $32.8 million and $31.4 million upon conversion from euros as of December 31, 2018 and 2017 , respectively).

Income Taxes

We record a tax provision for the anticipated tax consequences of our results of operations. The provision for income taxes is computed using the asset and liability method, under which deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial reporting and tax basis of assets and liabilities, and for operating losses and tax credit carryforwards. Deferred tax assets and liabilities are measured using the currently enacted tax rates in effect for the years in which those tax assets and liabilities are expected to be realized or settled. We provide a valuation allowance to reduce deferred tax assets to the amount that is more likely than not to be realized.

Net Loss per Share

Basic net loss per common share is calculated based on the net loss attributable to common stockholders divided by the weighted average number of shares outstanding for the period. The calculation of diluted net loss per common share excludes

the potential conversion of all dilutive convertible securities, such as convertible preferred stock, using the if-converted method, and the potential exercise or vesting of other dilutive securities, such as options, warrants and restricted stock, using the treasury stock method, as their inclusion would have an anti-dilutive effect.

Recently Adopted Accounting Standards

In May 2014, the Financial Accounting Standards Board, or the FASB, issued a comprehensive new standard which amends revenue recognition principles and provides a single set of criteria for revenue recognition among all industries. The new standard provides a five-step framework whereby revenue is recognized when promised goods or services are transferred to a customer at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard is effective for interim and annual periods beginning after December 15, 2017 and allows for adoption using a full retrospective method, or a modified retrospective method. We adopted the new standard in the first quarter 2018 using the modified retrospective method. The adoption of the standard did not have a material impact on our consolidated financial statements. See " Revenue Recognition" above for further discussion.

In August 2016, the FASB issued an amendment to add or clarify guidance on the classification of certain cash receipts and payments in the statement of cash flows with the objective of reducing diversity in practice regarding eight types of cash flows. The accounting guidance is effective for annual reporting periods (including interim periods within those periods) beginning after December 15, 2017. The adoption of this guidance did not have a material impact on our consolidated statements of cash flows.

In March 2018, the FASB issued "Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118," or SAB 118. The guidance adds various SEC paragraphs pursuant to SAB 118 to Accounting Standard Codification 740 “Income Taxes." SAB 118 was issued in December 2017 to provide immediate guidance for accounting implications of U.S. tax reform under the Tax Cuts and Jobs Act, which became effective for us on January 1, 2018. The adoption of this guidance did not have a material impact on our consolidated financial statements.

Recently Issued Accounting Standards

In February 2016, the FASB issued new accounting guidance on accounting for leases which requires lessees to recognize virtually all of their leases (other than leases that meet the definition of a short-term lease) on the balance sheet. The accounting guidance is effective for annual reporting periods (including interim periods within those periods) beginning after December 15, 2018. We will adopt this guidance on January 1, 2019 using the modified retrospective approach and have elected to apply the package of practical expedients and certain other practical expedients permitted under the transition guidance. All identified leases are classified as operating leases. As a result, we expect to recognize right-of-use assets ranging from approximately $4.6 million to $4.9 million , and lease liabilities ranging from approximately $7.0 million to $7.3 million , respectively, in our consolidated balance sheet. In addition, we have elected to apply the additional transition method per ASU 2018-11 and expect to recognize a cumulative effect adjustment of approximately $1.2 million reducing the opening accumulated deficit balance. The adoption of the standard is not expected to materially impact our consolidated statements of operations or consolidated statements of cash flows.

In June 2018, the FASB issued new accounting guidance which simplifies the accounting for share-based payments granted to nonemployees for goods and services by aligning it, with certain exceptions, with the accounting for share-based payments to employees. The guidance is effective for fiscal years beginning after December 15, 2018 (including interim periods within those fiscal years). Early adoption is permitted. We do not expect the adoption of this accounting guidance to have a material impact on our consolidated financial statements.

In August 2018, the FASB issued new accounting guidance which eliminates certain disclosure requirements for fair value measurements for all entities, requires public entities to disclose certain new information and modifies some disclosure requirements. The guidance is effective for fiscal years beginning after December 15, 2019 (including interim periods within those fiscal years). Early adoption is permitted for either the entire standard or any eliminated or modified disclosures. We do not expect the adoption of this accounting guidance to have a material impact on our consolidated financial statements.

Although there were several other new accounting pronouncements issued or proposed by the FASB, we do not believe any of these have had or will have a material impact on our consolidated financial statements.

Reclassifications

Certain prior year items have been reclassified to conform to current year presentation, including the reclassification of items in stockholders' equity section as discussed in Reincorporation Merger above.

2. Property and Equipment

Property and equipment are composed of the following as of December 31, 2018 and 2017 (in thousands):



	2018			2017
Furniture and office equipment	$	4,445		$	4,552
Leasehold improvements	5,168			5,168
Lab equipment	63			209
	9,676			9,929
Less: accumulated depreciation and amortization	(7,883		)	(7,564		)
Property and equipment, net	$	1,793		$	2,365

Depreciation expense for the years ended December 31, 2018 and 2017 was $0.6 million and $0.7 million , respectively.

3. Other Assets

Other assets consisted of the following as of December 31, 2018 and 2017 (in thousands):



	2018		2017
Italian VAT receivables	$	4,480	$	4,692
Italian VAT deposit	493		516
Rent deposit	194		194
Other	380		195
Other assets	$	5,547	$	5,597

See Note 1. Description of Business and Summary of Significant Accounting Policies - Italian Value Added Tax Receivable and Note 18. Commitments and Contingencies for details regarding our Italian VAT receivables and Italian VAT deposit.

4. Accrued Expenses

Accrued expenses consisted of the following as of December 31, 2018 and 2017 (in thousands):



	2018		2017
Clinical and investigator-sponsored trial expenses	$	6,573	$	5,019
Employee compensation and related expenses	4,216		4,432
Restructuring expenses	660		—
Manufacturing expenses	458		2,637
Other	945		1,802
Total accrued expenses	$	12,852	$	13,890

5. Leases

Lease Agreements

In January 2012 , we entered into an operating lease agreement with Selig Holdings Company LLC to lease approximately 66,000 square feet of office space in Seattle, Washington for a term of 120 months , commencing May 1, 2012. We have two five -year options to extend the term of the lease at a market rate determined according to the lease. The initial rent amount was based on $27.00 per square foot per annum, but no payments were due during the initial five months of the lease term. Rent increases three percent over the prior year’s amount for each year thereafter for the duration of the lease. In addition, we were provided an allowance of $3.3 million for certain tenant improvements made by us.

In December 2017 , we entered into an agreement to sublease approximately 44,000 square feet of our Seattle office space. No payments were due through May 2018, after which monthly rent is due through the sublease termination date in April 2022 . Monthly sublease rent increases by a minor amount each January 1. In connection with the sublease, we recognized a loss and a deferred liability of $1.6 million , representing future rental payments plus related expenses in excess of the future sublease payments to be received. The loss was recorded in Selling, general and administrative expense during the year ended December 31, 2017 . Other current liabilities and Other liabilities in the consolidated balance sheet include $0.2 million and $0.4 million , respectively, related to the sublease agreement as of December 31, 2018 , and $0.8 million and $0.6 million , respectively, as of December 31, 2017 .

Rent expense, net of sublease-related income of $1.6 million and $0.1 million for the year ended December 31, 2018 and 2017 , amounted to $0.1 million and $1.6 million for the years ended December 31, 2018 and 2017 , respectively.

Future Minimum Lease Payments

Future minimum lease commitments for non-cancelable operating leases, net of sublease rentals, at December 31, 2018 were as follows (in thousands):



	Operating		Sublease
	Lease Payments		Rentals Receipts		Net
2019	$	2,581	$	1,365	$	1,216
2020	2,632		1,410		1,222
2021	2,628		1,454		1,174
2022	883		499		384
Thereafter	—		—		—
Total minimum lease commitments	$	8,724	$	4,728	$	3,996

6. Other Liabilities

Other liabilities consisted of the following as of December 31, 2018 and 2017 (in thousands):



	2018		2017
Deferred rent, less current portion	$	2,157	$	3,050
Other long-term obligations	2,414		2,419
Total other liabilities	$	4,571	$	5,469

Deferred rent, less current portion as of December 31, 2018 and 2017 includes amounts related to incentives for rent holidays and leasehold improvements associated with our operating lease for office space. In addition, deferred rent, less current portion as of December 31, 2018 and 2017 includes $0.4 million and $0.6 million of deferred liability, respectively, related to the sublease of Seattle office space as discussed in Note 5. Leases .

Other long-term obligations as of December 31, 2018 and 2017 include a fee in the amount of $1.4 million payable to Silicon Valley Bank. See Note 7. Long-term Debt for additional information.

7. Long-term Debt

Silicon Valley Bank

In November 2017 , we entered into a Loan and Security Agreement with Silicon Valley Bank, or SVB, for a senior secured term loan of up to $18.0 million . The first $16.0 million of the term loan was funded in November 2017 . We had an option to borrow an additional $2.0 million , which option expired unexercised on July 31, 2018. The loan proceeds were used to repay in full all outstanding indebtedness under the Loan and Security Agreement with Hercules Technology Growth Capital, Inc., or Hercules, as discussed below and to fund our general business requirements. We were required to maintain unrestricted and unencumbered cash in an amount equal to at least $16.0 million under the terms of Loan and Security Agreement, and as such, $16.0 million of our cash was legally restricted as of December 31, 2017 and held as a compensating balance against the

term loan. The restriction was removed in January 2018. See Note 1. Description of Business and Summary of Significant Accounting Policies for further details regarding restricted cash.

The term loan is repayable over 36 months after an initial interest-only period of 12 months after closing. The interest rate on the term loan floats at a rate per annum equal to the greater of 2.5 percent above the prime rate and 6.75 percent . We may elect to prepay some or all of the loan balance at any time subject to a prepayment fee. A fee in the amount of 9 percent of the total principal amount funded to us is payable to SVB on the date on which the term loan is paid or becomes due and payable in full. Such back-end fee in the amount of $1.4 million was included in Other liabilities in the consolidated balance sheets as of December 31, 2018 and 2017 . The loan obligations are secured by a first priority security interest on substantially all of our personal property except our intellectual property and subject to certain other exceptions.

In addition, we issued warrants to SVB and Life Science Loans II, LLC, pursuant to a participation arrangement among SVB, Loan Manager II, LLC and Life Science Loans II, LLC, to purchase up to 190,140 shares of our common stock. Warrants have an initial exercise price of $2.84 per share of our common stock and will expire on November 28, 2027 .

In connection with the Loan and Security Agreement, we recorded debt discount and debt issuance costs of $1.9 million and $0.1 million , respectively, of which $1.4 million and $0.1 million , respectively, was unamortized as of December 31, 2018 . The outstanding principal balance on the term loan was $15.6 million as of December 31, 2018 .

As of December 31, 2018 , the scheduled principal and interest payments (based on the interest rate of 8.0 percent as of December 31, 2018 ) as well as the back-end fee described above are as follows:



	Principal			Interest		Back-end fee		Total
2019	$	5,333		$	1,061	$	—	$	6,394
2020	5,333			633		—		5,966
2021	4,889			198		1,440		6,527
Thereafter	—			—		—		—
Total scheduled payments	$	15,555		$	1,892	$	1,440	$	18,887
Less: debt discount and issuance costs	$	(1,476	)
Less: current portion of long-term debt	$	(4,812	)
Long-term debt	$	9,267

Hercules

In November 2017 , we repaid Hercules the then-outstanding loan principal balance of $14.3 million in full, using the proceeds from the Loan and Security Agreement with SVB as discussed above. Accordingly, among other things, (1) all obligations under the loan agreement with Hercules and all related documents have been paid, satisfied, released and discharged in full, (2) all unfunded commitments to make credit extensions or financial accommodations to us or any other person under the loan agreement with Hercules have been automatically and irrevocably terminated, and (3) our obligations under the loan agreement with Hercules and all related documents have been automatically and irrevocably terminated (other than with respect to customary provisions and agreements that are expressly specified to survive the termination). Upon full repayment of the principal in November 2017 , we wrote-off the then-unamortized debt discount balance of $0.1 million to a loss on debt extinguishment, which was recorded in Other non-operating expense for the year ended December 31, 2017 .

8. Equity Transactions

Preferred Stock

In June 2017 , in an underwritten public offering, we issued 22,500 shares of Series N Preferred Stock for gross proceeds of $45.0 million before deducting underwriting commissions and discounts and other offering costs of approximately $2.3 million . BVF Partners L.P., or BVF, an existing stockholder of the Company, was one of our investors in this offering. See

Note 17. Related Party Transactions for further details.

In June 2017, 21,925 shares of Series N Preferred Stock were converted into 14.6 million shares of common stock at a conversion price of $3.00 per share. For the year ended December 31, 2017 , we recognized $4.4 million in deemed dividends

on preferred stock related to the beneficial conversion feature on our Series N Preferred Stock. There were 575 shares of Series N Preferred Stock outstanding as of December 31, 2017 , which were owned by BVF.

In February 2018 , the 575 shares of Series N Preferred Stock owned by BVF, along with 8.0 million shares of our common stock owned by BVF were exchanged for 12,575 shares of Series O Preferred Stock. For the year ended December 31, 2018 , we recognized $0.1 million in deemed dividends on preferred stock related to the beneficial conversion feature on Series O Preferred Stock. There were 12,575 shares of Series O Preferred Stock outstanding as of December 31, 2018 , which are convertible into 8.4 million shares of common stock.

Each share of Series O Preferred Stock is convertible at the option of the holder (subject to certain limitations) into shares of common stock at a conversion price of $3.00 per share of common stock. Each share of Series O Preferred Stock is entitled to a liquidation preference equal to the initial stated value of $2,000 per share, plus any declared and unpaid dividends, and any other payments that may be due on such shares, before any distribution of assets may be made to holders of capital stock ranking junior to the Series O Preferred Stock. The Series O Preferred Stock is not entitled to dividends except to share in any dividends actually paid on common stock or any pari passu or junior securities. The Series O Preferred Stock has no voting rights, except as otherwise expressly provided in the certificate of incorporation of CTI or as otherwise required by law.

Common Stock

In February 2018, we offered and sold 23.0 million shares of our common stock, referred to as the Offering. The price to the public in this Offering was $3.00 per share of common stock. The gross proceeds from the Offering were $69.0 million before deducting underwriting commissions and discounts and other offering costs of approximately $4.8 million .

In November 2018, we entered into a Sales Agreement with Cowen and Company, LLC, or Cowen, to sell shares of our common stock, having aggregate sales proceeds of up to $50.0 million , from time to time, through an “at the market” equity offering program under which Cowen will act as sales agent. Under the Sales Agreement, we will set the parameters for the sale of shares, including the number of shares to be issued, the time period during which sales are requested to be made, limitation on the number of shares that may be sold in any one trading day and any minimum price below which sales may not be made. Subject to the terms and conditions of the Sales Agreement, Cowen may sell the shares by methods deemed to be an “at-the-market” offering as defined in Rule 415 promulgated under the Securities Act of 1933, as amended, including sales made directly on The Nasdaq Capital Market or on any other existing trading market for the common stock. Cowen will use commercially reasonable efforts in conducting such sales activities consistent with its normal trading and sales practices, applicable state and federal laws, rules and regulations and the rules of The Nasdaq Stock Market LLC. The Sales Agreement may be terminated by us upon five days’ notice to Cowen for any reason or by Cowen upon five days’ notice to us for any reason or at any time under certain circumstances, including but not limited to the occurrence of a material adverse change in the Company. Under the terms of the Sales Agreement, we may also sell shares to Cowen acting as principal for Cowen’s own account at prices agreed upon at the time of sale upon our express authorization. The compensation to Cowen for sales of our common stock will be an amount equal to 3.0% of the gross proceeds of any shares of common stock sold under the Sales Agreement. We have no obligation to sell any shares under the Sales Agreement, and may at any time suspend solicitation and offers under the Sales Agreement. For the year ended December 31, 2018 , no shares have been sold under the Sales Agreement.

Common Stock Authorized

In May 2017 , the Company's Amended and Restated Articles of Incorporation were amended to increase the total number of authorized shares of common stock from 41.5 million to 81.5 million .

In May 2018 , the Company's certificate of incorporation was amended to increase the total number of authorized shares of common stock from 81.5 million to 101.5 million .

Common Stock Reserved

A summary of common stock reserved for issuance is as follows as of December 31, 2018 (in thousands):



Equity incentive plans	9,203
Option agreement with Adam R. Craig	1,120
Common stock purchase warrants	514
Series O convertible preferred stock	8,383
Employee stock purchase plan	178
Total common stock reserved	19,398

Warrants

Warrants to purchase up to 29,239 shares of our common stock with an exercise price of $17.10 per share, issued in connection with the Third Amendment to the Loan Agreement with Hercules in 2015, were outstanding and exercisable as of December 31, 2018 .

Warrants to purchase up to 190,140 shares of our common stock with an exercise price of $2.84 per share, issued in connection with the Loan and Security Agreement with SVB in 2017, were outstanding as of December 31, 2018 . Of this amount, warrants to purchase up to 169,014 shares of our common stock were exercisable as of December 31, 2018 .

Warrants to purchase up to 294,117 shares of our common stock with an exercise price of $1.70 per share, which were issued to our vendor in 2018 as part of compensation for services, were outstanding but remained unexercisable as of December 31, 2018 .

9. Other Comprehensive Loss

Total accumulated other comprehensive loss consisted of the following (in thousands):



	Net Unrealized Loss on Available-For-Sale Securities			Foreign Currency Translation Adjustments (1)			Unrealized Foreign Exchange Loss on Intercompany Balance			Accumulated Other Comprehensive Loss
December 31, 2017	$	1		$	(6,829	)	$	556		$	(6,272	)
Current period other comprehensive loss	(15		)	(2,843		)	(1,513		)	(4,371		)
December 31, 2018	$	(14	)	$	(9,672	)	$	(957	)	$	(10,643	)

(1) In accordance with ASC 830 - Foreign Currency Matters , the current period change includes a release of cumulative translation adjustment in the amount of $4.3 million upon dissolution of our foreign branch, which was recognized in other non-operating income in our consolidated statement of operations for the year ended December 31, 2018 .

10. Collaboration, Licensing and Milestone Agreements

Servier

In September 2014 , we entered into an Exclusive License and Collaboration Agreement, or the Original Agreement, with Les Laboratoires Servier and Institut de Recherches Internationales Servier, or collectively, Servier. In April 2017 , we entered into an Amended and Restated Exclusive License and Collaboration Agreement, or the Restated Agreement, with Servier, pursuant to which the Original Agreement was amended and restated in its entirety. In February 2019, we entered into an agreement to terminate the Restated Agreement. For further details, see Note 20. Subsequent Events .

Under the Restated Agreement, we granted Servier an exclusive and sublicensable (subject to certain conditions) royalty-bearing license with respect to the development and commercialization of PIXUVRI for use in pharmaceutical products, or Licensed Products, outside of the U.S. (and its territories and possessions).

In May 2017, we received a non-refundable, non-creditable upfront cash payment of €12.0 million under the terms of the Restated Agreement. This amount included a €2.0 million payment for a milestone relating to EMA approval of an additional third-party manufacturer of PIXUVRI, which was not included in the Original Agreement and was deemed achieved at the time of the Restated Agreement. Subject to the achievement of certain conditions, the Restated Agreement provided for additional milestone payments of up to €76.0 million : up to €36.0 million in potential regulatory milestone payments (which includes a €1.0 million payment for a regulatory milestone achieved in September 2017 as discussed below), and up to €40.0 million in potential sales-based milestone payments.

The Restated Agreement also provided that we were eligible to receive tiered royalty payments on net sales of products containing PIXUVRI, ranging from a low double-digit percentage up to a percentage in the low twenties, subject to certain reductions of up to mid-double-digit percentages under certain circumstances, subject to expiration upon certain events, including upon expiration of exclusivity rights to products containing PIXUVRI in the respective country.

Under the Restated Agreement, with the exception of the conclusion of the PIX306 trial and certain other services,

Servier was responsible for development, commercialization and manufacturing activities within its territory. We entered into a commercialization transition plan whereby we transferred to Servier medical affairs and commercialization activities relating to the Licensed Products in Israel, Turkey, Germany, Austria, the United Kingdom, Denmark, Finland, Norway and Sweden, or collectively, the Transition Territory. Upon completion of the commercialization transition plan, we terminated or assigned certain distributor and wholesaler contracts to Servier in the Transition Territory. Each party was responsible for the manufacture and supply of drug products and substances in their respective territories. We recorded reimbursements received from Servier for their portion of operating expenses we pay on their behalf as revenue and the full amount of costs as operating expenses in the statements of operations.

Prior to its termination, the Restated Agreement was scheduled to expire on a country-by-country basis upon the expiration of the royalty terms in the countries in the Servier territory, at which time all licenses granted to Servier would become perpetual and royalty-free.

We have determined that the Restated Agreement with Servier is within the scope of ASC 606 since we and Servier do not equally share risks and rewards of the arrangement under the Restated Agreement and as such a vendor-customer relationship exists. We identified the following performance obligations at the inception of the Restated Agreement:

• a license with respect to the development and commercialization of PIXUVRI

• development services

• joint committee obligations

• regulatory responsibilities

• commercialization responsibilities

• manufacturing and supply responsibilities

The license is a distinct promise because it is sublicensable and separable from the remaining performance obligations and can be used for its intended purpose on its own. The remaining service performance obligations are also distinct because these services are not proprietary in nature, and other vendors could provide the same services in order to derive value from the license.

We determined that performance obligations relating to the joint committee obligations and the regulatory, commercial, and manufacturing and supply responsibilities were insignificant in the context of the Restated Agreement, and as such these obligations were combined with the development services and included as “Development and other services” in the table below.

At the inception of the Restated Agreement, the arrangement consideration of $12.8 million ( €12.0 million converted into U.S. dollars using the currency exchange rate as of the date of the Restated Agreement) was included in the initial transaction price, which was then allocated based on the percentage of the relative selling price of each performance obligation as follows (in thousands):



License	$	11,487
Development and other services	1,348
Total upfront payment	$	12,835

We estimated the selling price of the license using the income approach that values the license by discounting direct cash flow expected to be generated over the remaining life of the license, net of cash flow adjustments related to working capital. The estimates and assumptions include, but are not limited to, estimated market opportunity, expected market share, and contractual royalty rates. We estimated the selling price of the development and other services, which includes personnel costs as well as third-party costs for applicable services and supplies, by discounting estimated expenditures for services to the date of the Restated Agreement. We concluded that a change in the key assumptions used to determine the best estimate of the selling price for the license would not have a significant effect on the allocation of the arrangement consideration.

Regulatory and sales milestones, as well as royalty payments, are not included in the initial transaction price. Regulatory milestones under the Restated Agreement are subject to a constraint and as such, based on the most-likely amount approach, we recognize revenue when we deem probable that there will not be a significant reversal of revenue in the future periods. Royalty payments we receive from Servier are sales-based royalties in connection with the license of intellectual property. As such, royalty revenues are recognized as underlying sales occur. And sales milestone revenues are recognized when underlying sales milestones are achieved as the royalty exception under ASC 606 also applies to sales milestones.

During the year ended December 31, 2017 , we recognized $11.5 million of consideration allocated to the license as revenue upon delivery of the license. The $1.3 million consideration allocated to development and other services was recorded as deferred revenue, along with the $0.6 million deferred revenue balance from the Original Agreement, for a total deferred revenue balance of $1.9 million as of the date of Restated Agreement. During the year ended December 31, 2017 , $0.5 million of the deferred revenue balance was recognized as revenue; the remaining $1.4 million was recognized as revenue for the year ended December 31, 2018 as the development service obligation under the Restated Agreement was deemed complete.

In September 2017 , we attained a regulatory milestone under the Restated Agreement and recognized a €1.0 million milestone revenue (or $1.2 million using the currency exchange rate as of the date the milestone was achieved). In November 2018 , we recognized a €3.0 million milestone revenue (or $3.4 million using the currency exchange rate as of the date the milestone was achieved) relating to the attainment of a regulatory milestone.

Teva

Pursuant to an acquisition agreement entered into with Cephalon, Inc., or Cephalon, in June 2005, we have the right to receive up to $100.0 million in payments upon achievement of specified sales and development milestones related to TRISENOX. Cephalon was subsequently acquired by Teva Pharmaceutical Industries Ltd., or Teva. As of December 31, 2018 , we have earned $60.0 million of such potential milestone payments as a result of having achieved certain milestones. For the year ended December 31, 2018 , we received $10.0 million from Teva upon the achievement of a milestone for FDA approval of TRISENOX for first line treatment of acute promyelocytic leukemia. In addition, for the years ended December 31, 2018 and 2017 , we earned $10.0 million in each respective period upon the achievement of worldwide net sales milestones of TRISENOX. The achievement of the remaining milestones is uncertain at this time.

Baxalta

In November 2013 , we entered into the Pacritinib License Agreement with Baxter for the development and commercialization of pacritinib for use in oncology and potentially additional therapeutic areas. Baxter assigned its rights and obligations under the Pacritinib License Agreement to Baxalta. Under the Pacritinib License Agreement, we granted to Baxter an exclusive, worldwide (subject to our certain co-promotion rights in the U.S.), royalty-bearing, non-transferable, and (under certain circumstances outside of the U.S.) sub-licensable license to our know-how and patents relating to pacritinib.

In October 2016 , we entered into the Asset Return and Termination Agreement, or the Baxalta Termination Agreement, with Baxalta. Pursuant to the Baxalta Termination Agreement, the Pacritinib License Agreement was terminated in its entirety (other than with respect to certain customary provisions that survive termination, including those pertaining to confidentiality and indemnification), the Pacritinib License Agreement has no further force or effect, and all rights and obligations of the Company and Baxalta under the Pacritinib License Agreement were terminated.

In October 2016 , we resumed primary responsibility for the development and commercialization of pacritinib as a result of the Baxalta Termination Agreement and are no longer eligible to receive cost sharing or milestone payments for pacritinib’s development from Baxalta. In addition, under the Baxalta Termination Agreement, we are required to make a milestone payment to Baxalta in the amount of approximately $10.3 million upon the first regulatory approval or any pricing and reimbursement approvals of a product containing pacritinib.

Novartis

In January 2014 , we entered into a Termination Agreement, or the Novartis Termination Agreement, with Novartis to reacquire the rights to PIXUVRI and Opaxio, or collectively, the Compounds, previously granted to Novartis under our License and Co-Development Agreement with Novartis, as amended, or the Original Novartis Agreement. Pursuant to the Novartis Termination Agreement, the Original Novartis Agreement was terminated in its entirety, other than with respect to certain customary provisions, including those pertaining to confidentiality and indemnification, which survive termination.

Under the Novartis Termination Agreement, we agreed not to transfer, license, sublicense or otherwise grant rights with respect to intellectual property of the Compounds unless the transferee/licensee/sublicensee agrees to be bound by the terms of the Novartis Termination Agreement. We also agreed to provide potential payments to Novartis, including a percentage ranging from the low double-digits to the mid-teens, of any consideration received by us or our affiliates in connection with any transfer, license, sublicense or other grant of rights with respect to intellectual property of the Compounds, provided that such payments would not exceed certain prescribed ceilings in the low-single digit millions. Novartis is entitled to receive potential payments of up to $16.6 million upon the achievement of certain sales milestones of the Compounds. Novartis is also eligible to receive tiered low single-digit percentage royalty payments for the first several hundred million in annual net sales, and ten percent royalty payments thereafter based on annual net sales of each Compound, subject to reduction in the event generic drugs are introduced and sold by a third party, causing the sale of the Compounds to fall by a percentage in the high double-digits. Notwithstanding the foregoing, royalty payments for the Compounds are subject to certain minimum floor percentages in the low single-digits.

University of Vermont

In March 1995, the University of Vermont, or UVM, entered into an agreement, or the UVM Agreement, which, as amended in March 2000, grants us an exclusive, sublicensable license for the rights to PIXUVRI. Pursuant to the UVM Agreement, we acquired the rights to make, have made, sell and use PIXUVRI. We are obligated to make royalty payments to UVM that range from low-single digits to mid-single digits as a percentage of net sales. The higher royalty rate is payable for net sales in countries where specified UVM licensed patents exist, or where we have obtained orphan drug protection, until such UVM patents or such protection no longer exists. For a period of ten years after first commercialization of PIXUVRI, the lower royalty rate is payable for net sales in such countries after expiration of the designated UVM patents or loss of orphan drug protection, and in all other countries without such specified UVM patents or orphan drug protection. Unless otherwise terminated, the term of the UVM Agreement continues for the life of the licensed patents in those countries in which a licensed patent exists, and continues for ten years after the first sale of PIXUVRI in those countries where no such patents exist. We may terminate the UVM Agreement, on a country-by-country basis or on a patent-by-patent basis, at any time upon advance written notice. UVM may terminate the UVM Agreement upon advance written notice in the event royalty payments are not made. In addition, either party may terminate the UVM Agreement (1) in the event of an uncured material breach of the UVM Agreement by the other party or (2) in the event of bankruptcy of the other party.

S*BIO Pte Ltd.

We acquired the compounds SB1518 (which is referred to as “pacritinib”) and SB1578, which inhibit JAK2 and FLT3, from S*BIO Pte Ltd., or S*BIO, in May 2012 . Under our agreement with S*BIO, we are required to make milestone payments to S*BIO up to an aggregate amount of $132.5 million if certain U.S., E.U. and Japanese regulatory approvals are obtained or if certain worldwide net sales thresholds are met in connection with any pharmaceutical product containing or comprising any compound that we acquired from S*BIO for use for specific diseases, infections or other conditions. At our election, we may pay up to 50% of any milestone payments to S*BIO through the issuance of shares of our common stock or shares of our preferred stock convertible into our common stock. S*BIO will also be entitled to receive royalty payments from us at incremental rates in the low single-digits based on certain worldwide net sales thresholds on a product-by-product and country-by-country basis.

Vernalis

We entered into an amended and restated exclusive license agreement with Vernalis (R&D) Limited, or Vernalis, in October 2014, or the Vernalis License Agreement, for the exclusive worldwide right to use certain patents and other intellectual property rights to develop, market and commercialize tosedostat and certain other compounds. Under the Vernalis License Agreement, we have agreed to make tiered royalty payments of no more than a high single-digit percentage of net sales of products containing licensed compounds, with such obligation to continue on a country-by-country basis for the longer of ten years following commercial launch or the expiry of relevant patent claims.

The Vernalis License Agreement will terminate when the royalty obligations expire, although the parties have early termination rights under certain circumstances, including the following: (1) we have the right to terminate, with three months’ notice, upon the belief that the continued development of tosedostat or any of the other licensed compounds is not commercially viable, (2) Vernalis has the right to terminate in the event of our uncured failure to pay sums due, and (3) either party has the right to terminate in the event of the other party’s uncured material breach or insolvency. We have ceased development of tosedostat and do not anticipate incurring additional material expenses related to this terminated program.

Gynecologic Oncology Group

We entered into an agreement with the Gynecologic Oncology Group, or GOG, now part of NRG Oncology, in March 2004 , as amended, related to the GOG-212 trial of Opaxio in patients with ovarian cancer. Pursuant to the terms of such agreement, we made a milestone payment of $0.5 million relating to the transfer of final datasets during the second quarter of 2017, which was included in research and development expenses . The agreement was terminated in May 2017. No further development of Opaxio is planned.

PG-TXL

In November 1998, we entered into an agreement with PG-TXL, as amended in February 2006, or the PG-TXL Agreement, which granted us an exclusive worldwide license for the rights to Opaxio and to all potential uses of PG-TXL’s polymer technology. Pursuant to the PG-TXL Agreement, we acquired the rights to research, develop, manufacture, market and sell anti-cancer drugs developed using this polymer technology. Pursuant to the PG-TXL Agreement, we were obligated to make payments to PG-TXL of up to $14.4 million upon the achievement of certain development and regulatory milestones. The timing of the remaining milestone payments under the PG-TXL Agreement was based on trial commencements and completions for compounds protected by PG-TXL license rights, and regulatory and marketing approval of those compounds by the FDA and the EMA. Additionally, we were required to make royalty payments to PG-TXL ranging from low to mid-single digits as a percentage of net sales. In February 2017, we terminated our agreement with PG-TXL and the exclusive worldwide license for rights to Opaxio and certain polymer technology thereunder.

Other Agreements

We have several agreements with contract research organizations, third-party manufacturers, and distributors which have durations of greater than one year for the development and distribution of certain of our compounds.

11. Restructuring Activities

In December 2018, we announced a restructuring plan to improve efficiencies and reduce costs within the Company, which impacted a total of 21 positions. We expect to incur total restructuring expenses of approximately $1.5 million , of which $0.7 million had been incurred for the year ended December 31, 2018 . We anticipate the majority of restructuring activities to be completed by the end of first quarter 2019.

The following table summarizes the accrual balance and utilization for the year ended December 31, 2018 (in thousands):



	Employee separation costs
Restructuring accruals - December 31, 2017	$	—
Restructuring expenses	660
Cash payments	—
Restructuring accruals - December 31, 2018	$	660

12. Share-Based Compensation

Share-Based Compensation Expense

Share-based compensation expense for all share-based payment awards made to employees and directors is measured based on the grant-date fair value estimated in accordance with U.S. generally accepted accounting principles, or GAAP. We recognize share-based compensation using the straight-line, single-award method based on the value of the portion of share-based payment awards that is ultimately expected to vest during the period. Share-based compensation is reduced for estimated forfeitures at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.

For performance-based awards that do not include market-based conditions, we record share-based compensation expense only when the performance-based milestone is deemed probable of achievement. We utilize both quantitative and qualitative criteria to judge whether milestones are probable of achievement. For awards with market-based performance conditions, we recognize the grant-date fair value of the award over the derived service period regardless of whether the underlying performance condition is met.

During the years ended December 31, 2018 and 2017 , we recognized share-based compensation expense which consisted of the following types of awards (in thousands):



	2018		2017
Restricted stock	102		1,015
Options	6,267		4,731
Total share-based compensation expense	$	6,369	$	5,746

The following table summarizes share-based compensation expense for the years ended December 31, 2018 and 2017 , which was allocated as follows (in thousands):



	2018		2017
Research and development	$	1,950	$	911
Selling, general and administrative	4,419		4,835
Total share-based compensation expense	$	6,369	$	5,746

Share-based compensation had a $6.4 million and $5.7 million effect on our net loss attributable to common stockholders for the years ended December 31, 2018 and 2017 , respectively. It had no effect on cash flows from operating activities for the periods presented; however, during the years ended December 31, 2018 and 2017 , we made payments of $21,000 and $0.1 million , respectively, relating to 5,800 shares and 21,000 shares, respectively, of our common stock withheld upon vesting of employee restricted stock awards based on taxes owed by employees upon vesting, which impacted cash flows used in financing activities.

As of December 31, 2018 , unrecognized compensation cost related to unvested stock options and unvested restricted stock awards amounted to $7.8 million , which will be recognized over the remaining weighted-average requisite service period of 1.83 years . The unrecognized compensation cost related to unvested options and restricted stock does not include the value of performance-based awards.

For the years ended December 31, 2018 and 2017 , no tax benefits were attributed to share-based compensation expense because a valuation allowance was maintained for all net deferred tax assets.

Stock Plans

In May 2017 , the Company's 2017 Equity Incentive Plan, or the 2017 Plan, was approved by the Company's shareholders, and no additional awards will be granted under the 2015 Equity Incentive Plan, or the 2015 Plan.

The Company's 2007 Employee Stock Purchase Plan, as amended and restated in August 2009 and September 2015, or the Purchase Plan, was amended in September 2015 to increase the maximum number of shares of the Company’s common stock authorized for issuance by 0.2 million shares. Refer to Employee Stock Purchase Plan below for further details.

Pursuant to our 2017 Plan, we may grant the following types of incentive awards: (1) stock options, including incentive stock options and non-qualified stock options, (2) stock appreciation rights, (3) restricted stock, (4) restricted stock units and (5) cash awards. The 2017 Plan is administered by the Compensation Committee of our Board, which has the discretion to determine the employees and consultants who shall be granted incentive awards. The Board retained sole authority under the 2017 Plan with respect to non-employee directors’ awards, although the Compensation Committee has authority under its charter to make recommendations to the Board concerning such awards. Options expire 10 years from the date of grant, subject to the recipients continued service to the Company.

As of December 31, 2018 , 11.6 million shares were authorized for issuance under equity incentive plans, of which 2.8 million shares of common stock were available for future grants under the 2017 Plan.

Stock Options

Fair value for stock options was estimated at the date of grant using the Black-Scholes pricing model, with the following weighted average assumptions:



	Year Ended December 31,
	2018		2017
Risk-free interest rate	2.9	%	1.9	%
Expected dividend yield	None		None
Expected life (in years)	5.4		5.2
Volatility	82	%	83	%

The risk-free interest rate used in the Black-Scholes valuation method is based on the implied yield currently available for U.S. Treasury securities at maturity with an equivalent term. We have not declared or paid dividends on our common stock and do not currently expect to do so in the future. The expected term of options represents the period that our options are expected to be outstanding and was determined based on historical weighted average holding periods and projected holding periods for the remaining unexercised options. Consideration was given to the contractual terms of our options, vesting schedules and expectations of future employee behavior. Expected volatility is based on the annualized daily historical volatility, including consideration of the implied volatility and market prices of traded options for comparable entities within our industry.

Our stock price volatility and option lives, both of which impact the fair value of options calculated under the Black-Scholes methodology and, ultimately, the expense that will be recognized over the life of the option, involve management’s best estimates. As we recognize compensation expense for only the portion of options expected to vest, we apply estimated forfeiture rates that we derive from historical employee termination behavior. If the actual number of forfeitures differs from our estimates, additional adjustments to compensation expense may be required in future periods.

The following table summarizes stock option activity for all of our stock option plans:



	Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (Thousands)
Outstanding at December 31, 2016 (1,913,000 exercisable)	2,806,000		$	11.44
Granted	4,450,000		$	3.68
Exercised	—		$	—
Forfeited	(378,000	)	$	6.27
Cancelled and expired	(210,000	)	$	24.33
Outstanding at December 31, 2017 (2,500,000 exercisable)	6,668,000		$	6.15
Granted	3,100,000		$	3.04
Exercised	(12,000	)	$	3.89
Forfeited	(408,000	)	$	3.48
Cancelled and expired	(2,129,000	)	$	9.18
Outstanding at December 31, 2018 (2,597,000 exercisable)	7,219,000		$	4.08	8.1	$	—
Vested or expected to vest at December 31, 2018	6,321,000		$	4.32	7.7	$	—
Exercisable at December 31, 2018	2,597,000		$	5.49	6.4	$	—

The weighted average exercise price of options exercisable at December 31, 2018 and 2017 was $5.49 and $9.83 , respectively. The weighted average grant-date fair value of options granted during 2018 and 2017 was $2.09 and $2.47 per option, respectively. The number of options vested or expected to vest at December 31, 2018 does not include 715,000 performance-based options with the weighted average exercise price of $2.18 since the achievement of such performance-based milestone was not deemed probable as of December 31, 2018 .

In March 2017 , Dr. Adam R. Craig, our President and CEO, was granted stock options to purchase 1.2 million shares of common stock at an exercise price of $4.24 per share. The stock options have a maximum term of ten years and vest in six

equal semi-annual installments over the three -year period beginning March 20, 2017, subject to his continued employment through the applicable vesting dates and acceleration under certain circumstances. The stock options were granted in connection with his entering into employment with the Company as President and CEO. A portion of the stock options covering 80,000 shares were granted under the 2015 Plan. The balance of such stock options was granted in accordance with NASDAQ Listing Rule 5635(c)(4).

Restricted Stock Awards

We issued 2,000 shares of restricted stock awards in 2017 while we issued no restricted stock awards in 2018 . The weighted average grant-date fair value of restricted stock awards issued during 2017 was $5.78 . Additionally, 15,000 and 39,000 shares of restricted stock awards were cancelled during 2018 and 2017 , respectively.

The total fair value of restricted stock awards vested during the years ended December 31, 2018 and 2017 was $0.1 million and $0.3 million , respectively.

A summary of the status of nonvested restricted stock awards as of December 31, 2018 and 2017 and changes during the periods then ended, is presented below:



	Nonvested Shares		Weighted Average Grant-Date Fair Value Per Share
Nonvested at December 31, 2016	183,000		$	12.76
Issued	2,000		$	5.78
Vested	(83,000	)	$	9.43
Forfeited	(39,000	)	$	14.39
Nonvested at December 31, 2017	63,000		$	15.93
Issued	—		$	—
Vested	(35,000	)	$	12.00
Forfeited	(15,000	)	$	16.12
Nonvested at December 31, 2018	13,000		$	26.23

Restricted Stock Units

We issued 20,000 restricted stock units during 2017 while no restricted stock units were issued during 2018 . No restricted stock units were cancelled during 2018 or 2017 . The weighted average grant-date fair value of restricted stock units issued during 2017 was $4.97 per unit. The total fair value of restricted stock units vested during the year ended December 31, 2018 and 2017 was $0.1 million and $0.8 million , respectively.

A summary of the status of nonvested restricted stock units as of December 31, 2018 and 2017 and changes during the periods then ended, is presented below:



	Nonvested Units		Weighted Average Grant-Date Fair Value Per Unit
Nonvested at December 31, 2016	187,000		$	5.35
Issued	20,000		$	4.97
Vested	(187,000	)	$	5.35
Forfeited	—		$	—
Nonvested at December 31, 2017	20,000		$	4.97
Issued	—		$	—
Vested	(20,000	)	$	4.97
Forfeited	—		$	—
Nonvested at December 31, 2018	—		$	—

Nonemployee Share-Based Compensation

Share-based compensation expense for awards granted to nonemployees is determined using the fair value of the consideration received or the fair value of the equity instruments issued, whichever is more reliably measured. The fair value of options and restricted stock awards granted to nonemployees is periodically remeasured as the underlying options or awards vest. The value of the instrument is amortized to expense over the vesting period with final valuation measured on the vesting date. As of December 31, 2018 and 2017 , unvested options to acquire approximately 12,000 shares and 4,000 shares, respectively, of common stock were outstanding. We recorded compensation expense of $6,000 during the year ended December 31, 2018 and reversed $8,000 during the year ended December 31, 2017 .

Employee Stock Purchase Plan

Under the Purchase Plan, eligible employees may purchase a limited number of shares of our common stock at 85% of the lower of the subscription date fair market value and the purchase date fair market value. There are two six-month offerings per year. Under the Purchase Plan, we issued approximately 5,000 and 4,000 shares of our common stock to employees in the years ended December 31, 2018 and 2017 , respectively. There are 0.2 million shares of common stock authorized under the Purchase Plan and approximately 0.2 million shares are reserved for future purchases as of December 31, 2018 .

13. Employee Benefit Plans

Our U.S. employees participate in the CTI BioPharma Corp. 401(k) Plan whereby eligible employees may defer up to 80% of their compensation, up to the annual maximum allowed by the Internal Revenue Service. We may make discretionary matching contributions based on certain plan provisions. We recorded $0.2 million related to discretionary matching contributions during the year ended December 31, 2018 and $0.3 million during the year ended December 31, 2017 .

14. Shareholder Rights Plan

In December 2009, our Board approved and adopted a shareholder rights plan, or Rights Plan, in which one preferred stock purchase right was distributed for each common share held as of the close of business on January 7, 2010. Initially, the rights were not exercisable, and were attached to, and traded with, all of the shares of CTI’s common stock outstanding as of and issued subsequent to January 7, 2010. In 2012, 2015 and 2017, our Board approved certain amendments to the Rights Plan. The Rights Plan expired on December 2, 2018 .

15. Customer and Geographic Concentrations

We consider our operations to be a single operating segment focused on the development, acquisition and commercialization of novel treatments for cancer. Financial results of this reportable segment are presented in the accompanying consolidated financial statements.

All sales of PIXUVRI during the year presented were in Europe. Product sales from PIXUVRI’s major customers as a percentage of total product sales were as follows:



	Year Ended
	December 31, 2017
Customer A	61	%
Customer B	24	%
Customer C	13	%

In April 2017, we granted Servier an exclusive and sublicensable (subject to certain conditions) royalty-bearing license with respect to the development and commercialization of PIXUVRI for use in pharmaceutical products outside of the U.S. (and its territories and possessions). As a result, we no longer have product sales. See Note 10. Collaboration, Licensing and Milestone Agreements for further details.

We had no long-lived assets located outside of the U.S. as of December 31, 2018 and 2017 .

16. Net Loss Per Share

Basic net loss per share is calculated based on the net loss attributable to common stockholders divided by the weighted average number of shares outstanding for the period. The calculation of diluted net loss per share excludes the potential conversion of all dilutive convertible securities, such as convertible debt and convertible preferred stock, and the potential exercise or vesting of other dilutive securities, such as options, warrants and restricted stock, as their inclusion would have an anti-dilutive effect. Accordingly, diluted net loss per share is the same as basic net loss per share .

The computation of net loss per share is as follows (in thousands, except per share amounts):



	Year Ended December 31,
	2018			2017
Net loss attributable to common stockholders	$	(29,400	)	$	(45,020	)
Basic and diluted:
Weighted average shares outstanding	56,106			36,569
Less: weighted average restricted shares outstanding	(33		)	(124		)
Shares used in calculation of basic and diluted net loss per common share	56,073			36,445
Net loss per common share: Basic and diluted	$	(0.52	)	$	(1.24	)

Common shares underlying equity awards, warrants, convertible preferred stock and other convertible securities aggregating 15.3 million shares and 5.2 million shares for the years ended December 31, 2018 and 2017 , respectively, prior to the application of the treasury stock method, have been excluded from the calculation of diluted net loss per share because they were anti-dilutive.

17. Related Party Transactions

Aequus

We have a majority ownership interest in Aequus. In May 2007 , we entered into a license agreement with Aequus

whereby Aequus gained rights to our Genetic Polymer™ technology. We also entered into an agreement to fund Aequus in

exchange for a convertible promissory note.

In March 2017 , we and Aequus entered into a License and Promissory Note Termination Agreement and a Note Cancellation Agreement, pursuant to which (1) all of the then-outstanding principal, plus all accrued and unpaid interest, approximately $13.7 million in total, was cancelled and terminated, (2) our license agreement with Aequus was terminated, (3) all obligations to Aequus were terminated with the exception of providing additional funding of up to $347,500 to Aequus, and (4) Aequus agreed to pay us a) 20% of milestone and similar payments, up to a maximum amount of $20.0 million , and b) royalties, on a product-by-product and county-by country basis, of 5% of net sales of certain ACTH Products being developed by Aequus. The additional funding of $347,500 had been provided in full as of September 30, 2017 . Payments from Aequus are due the later of (1) expiration of the last to expire valid patent claim that claims the ACTH Product, or (2) ten years from the first commercial sale of the applicable ACTH Product. We have the right to terminate the License and Promissory Note Termination Agreement and require Aequus to assign all ACTH Product related assets to us if Aequus does not file an Investigational New Drug Application for an ACTH Product with the FDA by September 6, 2019 .

BVF Partners L.P.

As discussed in Note 8. Equity Transactions , we completed an underwritten public offering of 22,500 shares of our Series N Preferred Stock in June 2017 . BVF purchased 6,750 shares of our Series N Preferred Stock in such offering, of which, 6,175 shares were converted into approximately 4.1 million shares of our common stock.

In February 2018 , in connection with the public offering of common stock (also discussed in Note 8. Equity Transactions ) , BVF purchased 6.3 million shares of our common stock. In addition, BVF exchanged 8.0 million shares of our common stock owned by BVF and 575 shares of our Series N Preferred Stock owned by BVF for 12,575 shares of our Series O Preferred Stock.

Primarily as a result of these transactions, BVF beneficially owned approximately 12.0% and 20.0% of our outstanding common stock as of December 31, 2018 and 2017 , respectively. Matthew D. Perry, a member of our Board, is the President of BVF and portfolio manager for the underlying funds managed by the firm.

18. Commitments and Contingencies

Commitments

See Note 5. Leases and Note 7. Long-term Debt for scheduled lease and debt payments. In addition, certain of our licensing agreements obligate us to make payments upon achievement of milestones and pay a royalty on net sales of products utilizing licensed compounds. See Note 10. Collaboration, Licensing and Milestone Agreements for further details. Purchase commitments relating to clinical trial contracts, manufacturing supply, insurance and others also arise in the ordinary course of business. We anticipate the timing of payments under these contracts to range from less than one year to more than three years.

Contingencies

In April 2009, December 2009 and June 2010, the Italian Tax Authority, or the ITA, issued notices of assessment to CTI - Sede Secondaria, or CTI (Europe), based on the ITA’s audit of CTI (Europe)’s value added tax, or VAT, returns for the years 2003, 2005, 2006 and 2007, or, collectively, the VAT Assessments. The ITA audits concluded that CTI (Europe) did not collect and remit VAT on certain invoices issued to non-Italian clients for services performed by CTI (Europe). The assessments, including interest and penalties, for the years 2003, 2006 and 2007 are €0.6 million , €2.7 million and €0.9 million , respectively. We believe that the services invoiced were non-VAT taxable consultancy services and that the VAT returns are correct as originally filed. We have appealed all the assessments and are defending ourselves against the assessments both on procedural grounds and on the merits of the cases, although we can make no assurances regarding the ultimate outcome of these cases.

Following is a summary of the status of the legal proceedings surrounding each respective VAT year return at issue:

2003 VAT Assessment . In June 2013, the Regional Tax Court issued decision no. 119/50/13 in regards to the 2003 VAT Assessment, which accepted the October 2012 appeal of the ITA and reversed a previous decision of the Provincial Tax Court. In January 2014, we appealed such decision to the Italian Supreme Court both on procedural grounds and on the merits of the case. In March 2014 , we paid a deposit in respect of the 2013 VAT matter of €0.4 million (or $0.6 million upon conversion from euros as of the date of payment), following the ITA's request for such payment, which is included in Other assets in our consolidated balance sheets.

2005 VAT Assessment. In January 2018, the Italian Supreme Court issued decision No. 02250/2018 which (i) rejected the April 2013 appeal of the ITA, (ii) confirmed the October 2012 decision of the Regional Tax Court (127/31/2012), which fully accepted the merits of our earlier appeal and confirmed that no penalties could be imposed against us, and (iii) due to the novelty of the arguments at stake, compensated the legal expenses incurred by the parties. ITA may not use any ordinary means of appeal against the Italian Supreme Court decision, and we have initiated steps to recover the amounts owed to us. We have applied for a refund based on the guidance from ITA; however the collectibility of the refund currently has not been determined.

2006 and 2007 VAT Assessments. In November 2013, the ITA appealed to the Italian Supreme Court an April 2013 decision of the Regional Tax Court (57/35/13), that fully rejected the merits of an earlier ITA appeal, declared that no penalties could be imposed against us and found ITA liable to pay us approximately €12,000 , as a partial refund of legal expenses we incurred.

No hearing dates have been fixed yet for either the 2003 VAT Assessment or consolidated 2006 and 2007 VAT Assessment cases.

If the final decision of the Italian Supreme Court is unfavorable to us, or if, in the interim, the ITA were to make a demand for payment and we were to be unsuccessful in suspending collection efforts, we may be requested to pay the ITA an amount up to €4.2 million , or approximately $4.8 million converted using the currency exchange rate as of December 31, 2018 , including interest and penalties for the period lapsed between the date in which the assessments were issued and the date of effective payment. In January 2013, our then remaining deposit for the VAT Assessments was refunded to us.

19. Income Taxes

We file income tax returns in the U.S., Italy and the U.K. A substantial part of our operations takes place in the State of Washington, which does not impose an income tax as that term is defined in ASC 740, Accounting for Income Taxes . As such, our state income tax expense or benefit, if recognized, would be immaterial to our operations. We are not currently under examination by an income tax authority, nor have we been notified that an examination is contemplated.

The U.S. signed into law, on December 22, 2017, tax reform legislation commonly referred to as the U.S. Tax Cuts and Jobs Act of 2017, or the 2017 Tax Act. The 2017 Tax Act was enacted in December 2017. The 2017 Tax Act significantly changed U.S. tax law by, among other things, lowering U.S. corporate income tax rates, implementing a territorial tax system and imposing a one-time transition tax on deemed repatriated earnings of foreign subsidiaries. The 2017 Tax Act reduced the U.S. corporate income tax rate from 34% to 21% , effective January 1, 2018.

The SEC staff issued Staff Accounting Bulletin No. 118, or SAB 118, to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the 2017 Tax Act and allows the registrant to record provisional amounts during a measurement period not to extend beyond one year of the enactment date. At December 31, 2017 , we had completed our accounting for all of the enactment date income tax effects of the 2017 Tax Act.

While the 2017 Tax Act provides for a modified territorial tax system, beginning in 2018, Global Intangible Low-Taxed Income, or GILTI provisions will be applied providing an incremental tax on low taxed foreign income. The GILTI provisions require us to include in our U.S. income tax return foreign subsidiary earnings in excess of an allowable return on the foreign subsidiary’s tangible assets. During 2018 , we made an accounting policy election to treat taxes related to GILTI as a current period expense when incurred.

Loss before income taxes is attributable to the following tax jurisdictions (in thousands):



	Year ended December 31,
	2018			2017
United States	$	(29,162	)	$	(40,180	)
Foreign	(190		)	(651		)
Net loss before income taxes	$	(29,352	)	$	(40,831	)

The reconciliation between the income tax rate and our effective tax rate as of December 31 is as follows:



	2018		2017
Federal income tax rate	21	%	34	%
Research and development tax credits	6		3
Non-deductible executive compensation	(1	)	—
Valuation allowance	(12	)	304
Impact of tax reform	—		(101	)
Expired tax attribute carryforwards	(17	)	(240	)
Gain on branch liquidation	3		—
Foreign currency gains and losses	2		—
Other	(2	)	—
Net effective tax rate	—	%	—	%

The principal components of our deferred tax assets and liabilities as of December 31 were as follows (in thousands):



	2018			2017
Deferred tax assets:
Net operating loss carryforwards	$	18,792		$	21,005
Capitalized research and development	32,029			27,540
Research and development tax credit carryforwards	3,061			1,347
Stock-based compensation	2,940			2,004
Intangible assets	7,802			8,117
Depreciation and amortization	549			472
Other deferred tax assets	1,806			2,279
Total deferred tax assets	66,979			62,764
Less: valuation allowance	(66,698		)	(62,472		)
	281			292
Deferred tax liabilities:
Deductions for tax in excess of financial statements	(281		)	(292		)
Total deferred tax liabilities	(281		)	(292		)
Net deferred tax assets	$	—		$	—

In preparing our December 31, 2018 financial statements, we determined that our December 31, 2017 deferred tax asset balance related to stock-based compensation and the corresponding valuation allowance were each overstated by $10.8 million . We evaluated the materiality of this adjustment and concluded that its impact was not material on our financial statements taken as a whole and did not affect our balance sheet, or statements of operations, stockholders' equity or cash flows, for any periods presented. We have elected to adjust the 2017 balances in the table above.

As of December 31, 2018 and 2017 , we had U.S. federal net operating loss carryforwards, or the NOL, of approximately $56.6 million and $74.8 million respectively, which are available to reduce future taxable income. We also had U.S. federal tax credits of $3.1 million and $1.3 million as of December 31, 2018 and 2017 , respectively, which may be used to offset future tax liabilities. The NOL and tax credit carryforwards have begun to expire in 2018 and may become subject to annual limitation in the event of certain cumulative changes in the ownership interest of significant stockholders over a three-year period in excess of 50%, as defined under Sections 382 and 383 of the Internal Revenue Code, or the IRC, of 1986, as amended. This could limit the amount of tax attributes that can be utilized annually to offset future taxable income or future tax liabilities. We have undertaken a formal IRC Section 382 study and the attributes disclosed in this footnote reflect the conclusion of that study. However, subsequent ownership changes may further affect the limitation in future years.

At December 31, 2018 , the NOL carryforwards in the U.K.,which have an indefinite carryforward period, were approximately $33.0 million .

Certain of the net operating loss deferred tax assets in the table above, totaling $9.9 million at December 31, 2018 are consolidated in our GAAP income tax provision due to our 60% ownership in Aequus; however, Aequus is not consolidated for income tax purposes and therefore these net operating losses will not be available to us in our future tax filings.

We maintain a full valuation allowance on our net deferred tax assets. The assessment regarding whether a valuation allowance is required considers both positive and negative evidence when determining whether it is more likely than not that deferred tax assets are recoverable. In making this assessment, significant weight is given to evidence that can be objectively verified. In our valuation, we considered our cumulative loss in recent years and forecasted losses in the near term as significant negative evidence. Based upon a review of the four sources of income identified within ASC 740, we determined that the negative evidence outweighed the positive evidence and that a full valuation allowance on our net deferred tax assets will be maintained. We will continue to assess the realizability of our deferred tax assets going forward and will adjust the valuation allowance as needed. Our valuation allowance increased by $4.2 million during the year ended December 31, 2018 primarily due to increases in capitalized research and development and research and development tax credit carryforwards, offset by net operating loss carryforward expirations.

We follow the provisions in ASC 740 and the guidance related to accounting for uncertainty in income taxes. We determine our uncertain tax positions based on a determination of whether and how much of a tax benefit taken by us in our tax filings or positions is more likely than not to be sustained upon examination by the relevant income tax authorities. We are

subject to U.S. federal and state, Italian and U.K. income taxes with varying statutes of limitations. Tax years from 1999 forward remain open to examination due to the carryover of net operating losses or tax credits. Our policy is to recognize interest related to unrecognized tax benefits as interest expense and penalties as operating expenses. As of December 31, 2018 , we had no unrecognized tax benefits and therefore no accrued interest or penalties related to unrecognized tax benefits. We believe that our income tax filing positions reflected in the various tax returns are more-likely-than not to be sustained on audit and thus there are no anticipated adjustments that would result in a material change to our consolidated balance sheets, statements of operations and cash flows. Therefore, no reserves for uncertain income tax positions have been recorded.

20. Subsequent Events

In February 2019 , we entered into a Termination and Transfer Agreement, or the Servier Termination Agreement, with Servier, which terminates the Restated Agreement. Under the Servier Termination Agreement, we will continue to be responsible for non-U.S. pharmacovigilance for PIXUVRI, the submission of a marketing authorization application for PIXUVRI and wind down of the PIX306 clinical trial during a transition period, which will last until the European Medicines Agency adopts a position on the PIXUVRI marketing authorization application. Servier agreed to reimburse us €620,000 for costs to be incurred in connection with transition period activities, and if the transition period extends beyond May 31, 2019, Servier will provide additional reimbursement to us not to exceed €50,000 per month or €200,000 in the aggregate. If the EMA’s definitive position results in a standard marketing authorization for PIXUVRI, we will transfer and assign all of our rights and responsibilities for PIXUVRI globally to Servier pursuant to an asset purchase agreement. Alternatively, if the EMA’s definitive position results in a conditional marketing authorization or suspension or withdrawal of the marketing authorization, then, at Servier’s election, we will either transfer and assign all of our rights and responsibilities for PIXUVRI globally to Servier pursuant to an asset purchase agreement or cooperate with Servier in the withdrawal of PIXUVRI from all jurisdictions other than the United States. The Servier Termination Agreement provides that, in either scenario, any asset purchase agreement will require, among other things, Servier to pay us €2.0 million and assume responsibility for all of the obligations related to PIXUVRI, including our remaining royalty payments to Novartis International Pharmaceutical Ltd. and the University of Vermont.

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

As previously disclosed, on July 13, 2018, the Audit Committee approved the dismissal of Marcum LLP, as our independent registered public accounting firm effective on August 2, 2018, which was the date of filing of our Quarterly Report on Form 10-Q for the quarter ended June 30, 2018. Ernst & Young LLP's engagement as our independent auditor and independent registered public accounting firm was effective August 2, 2018.

The reports of Marcum LLP on our financial statements for the past two fiscal years did not contain an adverse opinion or a disclaimer of opinion and were not qualified or modified as to uncertainty, audit scope, or accounting principles, except that the report of Marcum LLP dated March 2, 2017, relating to our consolidated balance sheets as of December 31, 2016 and 2015 and the related consolidated statements of operations, comprehensive loss, shareholders’ equity, and cash flows and the related financial statement schedule for each of the three years in the period ended December 31, 2016, included an explanatory paragraph as to the uncertainty of our ability to continue as a going concern. The audit reports of Marcum LLP on our effectiveness of internal control over financial reporting for the past two fiscal years did not contain any adverse opinion or disclaimer of opinion.

In connection with the audits of our financial statements for each of the two fiscal years ended December 31, 2017 and 2016, and in the subsequent interim period through August 2, 2018, there were no disagreements with Marcum LLP on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedures, which, if not resolved to the satisfaction of Marcum LLP, would have caused Marcum LLP to make reference to the matter in its reports for such years. There were no "reportable events" as that term is described in Item 304(a)(1)(v) of Regulation S-K.

Item 9A. Controls and Procedures

(a) Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in reports filed under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms, and that such information is accumulated and communicated to our management to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, our management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives.

Our management, under the supervision and with the participation of our President and Chief Executive Officer, or CEO, and Chief Financial Officer, or CFO, has evaluated the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act as of the end of the period covered by this Annual Report on Form 10-K. Based upon that evaluation, our CEO and CFO have concluded that, as of the end of the period covered by this Annual Report on Form 10-K, our disclosure controls and procedures were effective.

(b) Management’s Annual Report on Internal Controls

Management of the Company, including its consolidated subsidiaries, is responsible for establishing and maintaining adequate internal control over financial reporting. The Company’s internal control over financial reporting is a process designed under the supervision of the Company’s principal executive and principal financial officers to provide reasonable assurance regarding the reliability of financial reporting and the preparation of the Company’s financial statements for external reporting purposes in accordance with U.S. generally accepted accounting principles.

As of the end of the Company’s 2018 fiscal year, management conducted an assessment of the effectiveness of the Company’s internal control over financial reporting based on the framework established in “Internal Control—Integrated Framework” (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, management has determined that the Company’s internal control over financial reporting as of December 31, 2018 was effective.

The independent registered public accounting firm of Ernst & Young LLP, as auditors of the Company’s consolidated financial statements, has audited our internal controls over financial reporting as of December 31, 2018, as stated in their report, which appears herein.

There have been no changes to our internal control over financial reporting that occurred during the fourth fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

REPORT OF ERNST & YOUNG LLP, INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and the Board of Directors

CTI BioPharma Corp.

Opinion on Internal Control Over Financial Reporting

We have audited CTI BioPharma Corp.’s internal control over financial reporting as of December 31, 2018, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, CTI BioPharma Corp. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2018, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of December 31, 2018, the related consolidated statements of operations, comprehensive loss, stockholders’ equity and cash flows for the year then ended, and the related notes and our report dated March 13, 2019, expressed an unqualified opinion thereon.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Ernst & Young LLP

Seattle, Washington

March 13, 2019

Item 9B. Other Information

On March 13, 2019, our board of directors adopted, on the recommendation of the compensation committee, our Executive Incentive Compensation Plan, or the Incentive Compensation Plan. Our Incentive Compensation Plan allows us to grant incentive awards, generally payable in cash, to employees selected by the administrator of the Incentive Compensation Plan, including our named executive officers, based upon performance goals established by the administrator.

Under our Incentive Compensation Plan, the administrator determines the performance goals applicable to any award, which goals may include, without limitation, goals related to research and development, regulatory milestones or regulatory-related goals, gross margin, financial milestones, new product or business development, operating margin, product release timelines or other product release milestones, publications, cash flow, procurement, savings, internal structure, leadership development, project, function or portfolio-specific milestones, license or research collaboration agreements, capital raising, initial public offering preparations, patentability and individual objectives such as peer reviews or other subjective or objective criteria. The performance goals may differ from participant to participant and from award to award.

A committee appointed by our board of directors (which, until our board of directors determines otherwise, will be our compensation committee) administers our Incentive Compensation Plan. The administrator of our Incentive Compensation Plan may, in its sole discretion and at any time, increase, reduce or eliminate a participant’s actual award, and/or increase, reduce or eliminate the amount allocated to the bonus pool for a particular performance period. The actual award may be below, at or above a participant’s target award, in the discretion of the administrator. The administrator may determine the amount of any increase, reduction or elimination on the basis of such factors as it deems relevant, and it is not required to establish any allocation or weighting with respect to the factors it considers.

Actual awards generally will be paid in cash (or its equivalent) only after they are earned, and, unless otherwise determined by the administrator, to earn an actual award a participant must be employed by us through the date the actual award is paid. Payment of awards occurs as soon as practicable after they are earned, but no later than the dates set forth in our Incentive Compensation Plan.

Our board of directors and the administrator have the authority to amend, suspend or terminate our Incentive Compensation Plan, provided such action does not impair the existing rights of any participant with respect to any earned awards.

PART III

Item 10. Directors, Executive Officers and Corporate Governance

The information required by Item 10 of Form 10-K is incorporated by reference to our Proxy Statement for the 2019 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2018.

Item 11. Executive Compensation

The information required by Item 11 of Form 10-K is incorporated by reference to our Proxy Statement for the 2019 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2018.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required by Item 12 of Form 10-K is incorporated by reference to our Proxy Statement for the 2019 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2018.

Item 13. Certain Relationships and Related Transactions, and Director Independence

The information required by Item 13 of Form 10-K is incorporated by reference to our Proxy Statement for the 2019 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2018.

Item 14. Principal Accounting Fees and Services

The information required by Item 14 of Form 10-K is incorporated by reference to our Proxy Statement for the 2019 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2018.

PART IV

Item 15. Exhibits, Financial Statement Schedules

(a) The following documents are filed as part of this report:

(1) Financial Statements - The financial statements filed as part of this Annual Report on Form 10-K are listed on the Index to Consolidated Financial Statements in Item 8.

(2) Financial Statement Schedules - The financial statement schedules have been omitted because the information required to be set forth therein is not applicable or is shown in the financial statements or the notes thereto.

(3) Exhibits - The exhibits required by Item 601 of Regulation S-K are listed in paragraph (b) below.

(b) Exhibits



		Incorporated by Reference
Exhibit Number	Exhibit Description	Form	File No.	Exhibit Number	Filing Date

2.1	Agreement and Plan of Merger, dated January 24, 2018, by and between CTI BioPharma Corp., a Washington corporation, and CTI BioPharma Corp., a Delaware corporation.	8-K	000-28386	2.1	January 24, 2018

3.1	Certificate of Incorporation of CTI BioPharma Corp., a Delaware corporation, dated January 24, 2018.	8-K	000-28386	3.1	January 24, 2018

3.2	Certificate of Amendment to the Certificate of Incorporation of CTI BioPharma Corp., dated May 17, 2018.	10-Q	000-28386	3.1	August 3, 2018

3.3	Certificate of Designation for Series O Convertible Preferred Stock.	8-K	000-28386	3.1	February 12, 2018

3.4	Amended and Restated Bylaws of CTI BioPharma Corp., a Delaware corporation.	8-K	000-28386	3.1	March 23, 2018

4.1	Specimen Common Stock Certificate.	8-K	000-28386	4.1	February 12, 2018

4.2	Warrant Agreement, dated June 9, 2015, by and between Registrant and Hercules Technology Growth Capital, Inc.	8-K	001-12465	4.1	June 10, 2015

4.3	Warrant to Purchase Stock, dated November 28, 2017, by and between CTI BioPharma Corp. and Silicon Valley Bank.	8-K	000-28386	4.1	November 28, 2017

4.4	Warrant to Purchase Stock, dated November 28, 2017, by and between CTI BioPharma Corp. and Life Science Loans II, LLC.	8-K	000-28386	4.2	November 28, 2017

4.5	Form of Warrant to Purchase Common Stock, dated November 6, 2018, issued to consultant to the Registrant.				Filed herewith.

10.1	Office Lease, dated as of January 27, 2012, by and between the Registrant and Selig Holdings Company LLC.	10-K	001-12465	10.4	March 8, 2012

10.2†	Sublease agreement between CTI BioPharma Corp. and Cascadian Therapeutics, Inc.	8-K	000-28386	10.1	December 5, 2017

10.3*	Offer Letter, by and between the Registrant and Bruce J. Seeley, dated as of July 2, 2015.	10-Q	001-12465	10.3	August 6, 2015

10.4*	Employment Agreement, dated February 24, 2017, by and between the Company and Adam Craig.	8-K	000-28386	10.1	February 27, 2017

10.5*	Amendment to Employment Agreement, dated October 31, 2018, by and between Adam R. Craig and the Company.	10-Q	000-28386	10.2	November 1, 2018

10.6*	Form of Severance Agreement for the Registrant's Executive Officers (as in effect as of January 6, 2015)	10-K	001-12465	10.6	March 12, 2015

10.7*	Severance Agreement, by and between the Registrant and Bruce J. Seeley, dated as of July 27, 2015.	10-K	001-12465	10.11	February 17, 2016

10.8*	Offer Letter, by and between the Registrant and David Kirske, dated August 1, 2017.	10-Q	000-28386	10.3	August 4, 2017




10.9*	Severance Agreement, by and between the Registrant and David Kirske, dated September 25, 2017.	8-K	000-28386	10.1	September 26, 2017

10.10*	Form of Indemnity Agreement for the Registrant’s Executive Officers and Directors.	8-K	000-28386	10.1	January 24, 2018

10.11*	2007 Employee Stock Purchase Plan, as amended and restated.	DEF 14A	001-12465	Appendix B	July 29, 2015

10.12*	CTI BioPharma Corp. 2015 Equity Incentive Plan, as amended.	8-K	001-12465	10.1	April 29, 2016

10.13*	Global Form of 2015 Equity Incentive Plan Restricted Stock Unit Award Agreement.	10-Q	001-12465	10.3	November 5, 2015

10.14*	Global Form of 2015 Equity Incentive Plan Stock Option Agreement.	10-Q	001-12465	10.4	November 5, 2015

10.15*	Global Form of 2015 Equity Incentive Plan Stock Bonus Award Agreement.	10-Q	001-12465	10.5	November 5, 2015

10.16*	2007 Equity Incentive Plan, as amended and restated.	10-Q	001-12465	10.1	October 31, 2014

10.17*	Form of 2007 Equity Incentive Plan Restricted Stock Award Agreement.	10-K	001-12465	10.14	March 12, 2015

10.18*	Global Form of 2007 Equity Incentive Plan Restricted Stock Unit Award Agreement.	10-K	001-12465	10.15	March 12, 2015

10.19*	Global Form of 2007 Equity Incentive Plan Stock Option Agreement.	10-K	001-12465	10.16	March 12, 2015

10.20*	Form of 2007 Equity Incentive Plan Restricted Stock Award Agreement for the Registrant’s directors (relating to applicable awards granted prior to December 17, 2014).	10-Q	001-12465	10.7	April 26, 2011

10.21*	Form of 2007 Equity Incentive Plan Restricted Stock Award Agreement (relating to applicable awards granted prior to December 17, 2014).	10-Q	001-12465	10.3	October 30, 2013

10.22*	Form of 2007 Equity Incentive Plan Restricted Stock Award Agreement for employees (relating to applicable awards granted prior to December 17, 2014).	10-Q	001-12465	10.6	April 26, 2011

10.23*	Form of 2007 Equity Incentive Plan Stock Option Agreement for the Registrant’s directors and officers (relating to applicable awards granted prior to December 17, 2014).	10-Q	001-12465	10.1	October 30, 2013

10.24*	Form of Stock Award Agreement for grants of fully vested shares under the Registrant’s 2007 Equity Incentive Plan, as amended.	10-Q	001-12465	10.2	October 30, 2013

10.25*	Form of Equity/Long-Term Incentive Award Agreement for Bruce J. Seeley.	10-K	001-12465	10.35	February 17, 2016

10.26*	Form of Amendment to Form of Equity/Long-Term Incentive Award Agreement, dated as of December 23, 2015, for Bruce J. Seeley.	10-K	001-12465	10.37	February 17, 2016

10.27*	Amended and Restated 2017 Equity Incentive Plan of the Registrant.	8-K	000-28386	10.1	May 21, 2018



10.28*	Form of Stock Option Agreement under the CTI BioPharma Corp. Amended and Restated 2017 Equity Incentive Plan.	8-K	000-28386	10.2	May 21, 2018

10.29	Acquisition Agreement by and among the Registrant, CTI Technologies, Inc. and Cephalon, Inc., dated June 10, 2005.	8-K	001-12465	10.1	June 14, 2005

10.30†	Termination Agreement, effective January 3, 2014, by and among Novartis International Pharmaceutical Ltd. and the Registrant.	10-Q	001-12465	10.2	April 29, 2014

10.31†	Asset Purchase Agreement, dated April 18, 2012, between S*BIO Pte Ltd. and the Registrant.	8-K	001-12465	10.1	April 24, 2012

10.32†	Amended and Restated Exclusive License and Collaboration Agreement by and between the Registrant, CTI Life Sciences Limited, Laboratoires Servier and Institut de Recherches Internationales Servier dated as of April 21, 2017.	10-Q	000-28386	10.4	May 3, 2017


10.33	Asset Return and Termination Agreement, dated October 21, 2016, by and between the Company and Baxalta.	8-K	001-12465	10.2	October 24, 2016

10.34	Letter Agreement, dated June 9, 2017, by and between the Registrant and BVF Partners L.P.	8-K	000-28386	10.1	June 9, 2017

10.35†	Amended and Restated Exclusive License Agreement, dated October 24, 2014, by and between Vernalis (R&D) Ltd. and the Registrant.	8-K/A	001-12465	10.3	November 6, 2014

10.36†	Manufacturing and Supply Agreement, dated as of April 15, 2014, by and between the Registrant and DSM Fine Chemicals Austria Nfg GmbH & Co KG.	10-Q	001-12465	10.1	August 4, 2014

10.37	Loan and Security Agreement, dated November 28, 2017, by and between CTI BioPharma Corp. and Silicon Valley Bank.	8-K	000-28386	10.1	November 28, 2017

10.38	First Amendment to Loan and Security Agreement, dated May 17, 2018, by and between Silicon Valley Bank and CTI BioPharma Corp.	10-Q	000-28386	10.3	August 3, 2018

10.39	Waiver Agreement, dated January 19, 2018, by and between Silicon Valley Bank and the Registrant.	10-K	000-28386	10.58	March 7, 2018

10.40	Stipulation of Settlement.	8-K	000-28386	99.2	December 15, 2017

10.41	Letter Agreement, dated December 9, 2015, by and between CTI BioPharma Corp. and BVF Partners L.P.	8-K	001-12465	10.1	December 9, 2015

10.42	Exchange Agreement, by and between the Company and BVF Partners L.P., dated February 8, 2018.	8-K	000-28386	10.1	February 12, 2018

10.43	Separation Agreement and Release dated September 4, 2018, by and between Jack W. Singer and the Company.	8-K	000-28386	1	September 6, 2018



10.44	Termination and Transfer Agreement, dated as of February 25, 2019, by and among on the one hand, the Registrant and CTI Life Sciences Limited, and, on the other hand, Les Laboratoires Servier and Institut de Recherches Internationales Servier.	8-K	000-28386	10.1	February 27, 2019

10.45*	CTI BioPharma Corp. Executive Incentive Compensation Plan.				Filed herewith.

21.1	Subsidiaries of the Registrant.				Filed herewith.

23.1	Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm.				Filed herewith.

23.2	Consent of Marcum LLP, Independent Registered Public Accounting Firm.				Filed herewith.

24.1	Power of Attorney. Contained in the signature page of this Annual Report on Form 10-K and incorporated herein by reference.

31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.				Filed herewith.

31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.				Filed herewith.

32	Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.				Furnished herewith.

101.INS	XBRL Instance				Filed herewith.

101.SCH	XBRL Taxonomy Extension Schema				Filed herewith.

101.CAL	XBRL Taxonomy Extension Calculation				Filed herewith.

101.DEF	XBRL Taxonomy Extension Definition				Filed herewith.

101.LAB	XBRL Taxonomy Extension Labels				Filed herewith.

101.PRE	XBRL Taxonomy Extension Presentation				Filed herewith.



*	Indicates management contract or compensatory plan or arrangement.



†	Portions of these exhibits have been omitted pursuant to a request for confidential treatment.

Item 16. Form 10-K Summary

None.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized.

Dated: March 13, 2019



CTI BioPharma Corp.

By: /s/ Adam R. Craig
Adam R. Craig, M.D., Ph.D.
President and Chief Executive Officer

POWER OF ATTORNEY

KNOW BY ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Adam R. Craig and David H. Kirske, and each of them, with full power of substitution and resubstitution and full power to act without the other, as his true and lawful attorney-in-fact and agent to act in his or her name, place and stead and to execute in the name and on behalf of each person, individually and in each capacity stated below, and to file, any and all documents in connection therewith, with the Securities and Exchange commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing, ratifying and confirming all that said attorneys-in-fact and agents or any of them or their and his or her substitute or substitutes, may lawfully do or cause to be done by virtue thereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this Annual Report on Form 10-K has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.



Signature	Title	Date
/s/ Laurent Fischer Laurent Fischer, M.D.	Chairman of the Board and Director	March 13, 2019
/s/ Adam R. Craig Adam R. Craig, M.D., Ph.D.	President and Chief Executive Officer and Director (Principal Executive Officer)	March 13, 2019
/s/ David H. Kirske David H. Kirske	Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)	March 13, 2019
/s/ Michael A. Metzger Michael A. Metzger	Director	March 13, 2019
/s/ David Parkinson David Parkinson, M.D.	Director	March 13, 2019
/s/ Matthew D. Perry Matthew D. Perry	Director	March 13, 2019
/s/ Reed V. Tuckson Reed V. Tuckson, M.D.	Director	March 13, 2019

100

Exhibit 4.5

THE OFFER AND SALE OF THIS WARRANT AND THE SHARES ISSUABLE HEREUNDER HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ ACT ”), OR THE SECURITIES LAWS OF ANY STATE AND, EXCEPT AS SET FORTH IN SECTIONS 5.3 AND 5.4 BELOW, MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED UNLESS AND UNTIL REGISTERED UNDER SAID ACT AND LAWS OR, IN THE OPINION OF LEGAL COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE COMPANY, SUCH OFFER, SALE, PLEDGE OR OTHER TRANSFER IS EXEMPT FROM SUCH REGISTRATION.

WARRANT TO PURCHASE STOCK


Company:	CTI BioPharma Corp., a Delaware corporation


Number of Shares:	294,117


Type/Series of Stock:	Common Stock, par value $0.001 per share (“ Common Stock ”)


Warrant Price:	$1.70 per share


Issue Date:	November 6, 2018


Letter Agreement:	This Warrant to Purchase Stock (“ Warrant ”) is issued in connection with that certain letter agreement, dated as of November 5, 2018 (the “ Letter Agreement ”), by and between the Company and the original Holder hereof.

THIS WARRANT CERTIFIES THAT, for good and valuable consideration, ________________ (together with any successor or permitted assignee or transferee of this Warrant or of any shares issued upon exercise hereof, “ Holder ”) is entitled to purchase the number of fully paid and non-assessable shares (the “ Shares ”) of the above-stated Type/Series of Stock (the “ Class ”) of the above-named company (the “ Company ”) at the above-stated Warrant Price, all as set forth above and as adjusted pursuant to Section 2 of this Warrant, subject to the provisions and upon the terms and conditions set forth in this Warrant.

SECTION 1. EXERCISE .

1.1 Method of Exercise . If vested in accordance with Section 1.7 hereof, Holder may at any time and from time to time exercise this Warrant, in whole or in part by delivering to the Company in accordance with the provisions of Section 5.4 the original of this Warrant together with a duly executed Notice of Exercise in substantially the form attached hereto as Appendix 1 and, unless Holder is exercising this Warrant pursuant to a cashless exercise set forth in Section 1.2, a check, wire transfer of same-day funds (to an account designated by the Company), or other form of payment acceptable to the Company for the aggregate Warrant Price for the Shares being purchased.

1.2 Cashless Exercise . On any exercise of this Warrant, in lieu of payment of the aggregate Warrant Price in the manner as specified in Section 1.1 above, but otherwise in accordance with the requirements of Section 1.1, Holder may elect to receive Shares equal to the value of this Warrant, or portion hereof as to which this Warrant is being exercised. Thereupon, the Company shall issue to the Holder such number of fully paid and non-assessable Shares as are computed using the following formula:

X = Y(A-B)/A

where:

X = the number of Shares to be issued to the Holder;

Y = the number of Shares with respect to which this Warrant is being exercised (inclusive of the Shares surrendered to the Company in payment of the aggregate Warrant Price);

A = the Fair Market Value (as determined pursuant to Section 1.3 below) of one Share; and

B = the Warrant Price.

1.3 Fair Market Value . If the Common Stock is then traded or quoted on a nationally recognized securities exchange, inter-dealer quotation system or over-the-counter market (a “ Trading Market ”), the fair market value of a Share shall be equal to the volume-weighted average sale price of a share of Common Stock on such Trading Market as reported by, or based upon data reported by, Bloomberg Financial Markets or an equivalent, reliable reporting service as determined by the Company for the ten (10) Trading Days immediately preceding, and excluding, the Exercise Date. If the Common Stock is not traded in a Trading Market, the Board of Directors of the Company shall determine the fair market value of a Share in its reasonable good faith judgment. For purposes of this warrant, “ Exercise Date ” means the date a properly completed and executed Notice of Exercise, together with the original of this Warrant, are surrendered for exercise in accordance with the terms of this Warrant.

1.4 Delivery of Certificate and New Warrant . Within a reasonable time after Holder exercises this Warrant in the manner set forth in Section 1.1 or 1.2 above, the Company shall deliver to Holder a certificate or establish a book entry position representing the Shares issued to Holder upon such exercise and, if this Warrant has not been fully exercised and has not expired, a new warrant of like tenor representing the Shares not so acquired.

1.5 Replacement of Warrant . On receipt of evidence reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this Warrant and, in the case of loss, theft or destruction, on delivery of an indemnity agreement reasonably satisfactory in form, substance and amount to the Company or, in the case of mutilation, on surrender of this Warrant to the Company for cancellation, the Company shall, within a reasonable time, execute and deliver to Holder, in lieu of this Warrant, a new warrant of like tenor and amount.

1.6 Treatment of Warrant Upon Acquisition of Company .

(a) Acquisition . For the purpose of this Warrant, “ Acquisition ” means any transaction or series of related transactions involving: (i) the sale, lease, exclusive license, or other disposition of all or substantially all of the assets of the Company; (ii) any merger or consolidation of the Company into or with another person or entity (other than a merger or consolidation effected exclusively to change the Company’s domicile), or any other corporate reorganization, in which the stockholders of the Company in their capacity as such immediately prior to such merger, consolidation or reorganization, own less than a majority of the Company’s (or the surviving or successor entity’s) outstanding voting power immediately after such merger, consolidation or reorganization; or (iii) any sale or other transfer by the stockholders of the Company of shares representing at least a majority of the Company’s then-total outstanding combined voting power.

(b) Treatment of Warrant at Acquisition . In the event of an Acquisition in which the consideration to be received by the Company’s stockholders consists solely of cash, solely of Marketable Securities or a combination of cash and Marketable Securities (a “ Cash/Public Acquisition ”), either (i) Holder shall exercise this Warrant pursuant to Section 1.1 and/or 1.2 and such exercise will be deemed effective immediately prior to and contingent upon the consummation of such Acquisition or (ii) if Holder elects not to exercise the Warrant, this Warrant will expire immediately prior to the consummation of such Acquisition. Notwithstanding the foregoing, if the Fair Market Value of one Share as determined in accordance with Section 1.3 above would be greater than the Warrant Price in effect on such date immediately prior to such Cash/Public Acquisition, and Holder has not exercised this Warrant pursuant to Section 1.1 or Section 1.2 above as to all Shares, then this Warrant shall

automatically be exercised pursuant to Section 1.2 above as to all Shares effective immediately prior to and contingent upon the consummation of a Cash/Public Acquisition.

(c) The Company shall provide Holder with written notice relating to the Cash/Public Acquisition (together with such reasonable information as Holder may reasonably require regarding the treatment of this Warrant in connection with such contemplated Cash/Public Acquisition giving rise to such notice), which is to be delivered to Holder not less than five (5) Business Days prior to the closing of the proposed Cash/Public Acquisition. In the event the Company does not provide such notice, then if, immediately prior to the Cash/Public Acquisition, the fair market value of one Share (or other security issuable upon the exercise hereof) as determined in accordance with Section 1.3 above would be greater than the Warrant Price in effect on such date, then this Warrant shall automatically be deemed on and as of such date to be exercised pursuant to Section 1.2 above as to all Shares (or such other securities) for which it shall not previously have been exercised, and the Company shall promptly notify the Holder of the number of Shares (or such other securities) issued upon such exercise to the Holder and Holder shall be deemed to have restated each of the representations and warranties in Section 4 of the Warrant as the date thereof.

(d) Upon the closing of any Acquisition other than a Cash/Public Acquisition defined above, the acquiring, surviving or successor entity shall assume the obligations of this Warrant, and this Warrant shall thereafter be exercisable for the same securities and/or other property as would have been delivered for the Shares issuable upon exercise of the unexercised portion of this Warrant as if such Warrant was exercised immediately prior to the closing of the Acquisition such that the Shares were outstanding on and as of the closing of such Acquisition, subject to further adjustment from time to time in accordance with the provisions of this Warrant.

(e) As used in this Warrant, “ Marketable Securities ” means securities meeting all of the following requirements: (i) the issuer thereof is then subject to the reporting requirements of Section 13 or Section 15(d) of the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), and is then current in its filing of all required reports and other information under the Act and the Exchange Act; (ii) the class and series of shares or other security of the issuer that would be received by Holder in connection with the Acquisition were Holder to exercise this Warrant on or prior to the closing thereof is then traded in a Trading Market, and (iii) Holder would be able to publicly re-sell, (x) in the case of securities pursuant to an effective registration statement under the Act, within six (6) months following the closing of such Acquisition or (y) in the case of restricted or control securities within the meaning of Rule 144 under the Act, after six (6) months following the closing of such Acquisition, in each case subject to any applicable contractual restrictions on transferability, all of the issuer’s shares and/or other securities that would be received by Holder in such Acquisition were Holder to exercise this Warrant in full on or prior to the closing of such Acquisition.

1.7 Vesting . The Warrant shall vest and shall become exercisable as set forth in the Letter Agreement; provided, however, that in the event of any Cash/Public Acquisition occurring on or before the Expiration Date, if this Warrant shall not have already vested and become exercisable, the Company shall, at its election, either (i) accelerate the vesting and exercisability of the Warrant to enable the Holder to exercise the Warrant in full prior to such Cash/Public Acquisition as provided for in Section 1.6(b) above, or (ii) cause the terms and conditions of such Cash/Public Acquisition to treat the Warrant in the same manner as provided for other Acquisitions in Section 1.6(d) above.

SECTION 2. ADJUSTMENTS TO THE SHARES AND WARRANT PRICE .

2.1 Stock Dividends, Splits, Etc . If the Company declares or pays a dividend or distribution on the outstanding shares of the Class payable in Common Stock or other securities or property (other than cash), then upon exercise of this Warrant, for each Share acquired, Holder shall receive, without additional cost to Holder, the total number and kind of securities and property which Holder would have received had Holder owned the Shares of record as of the date the dividend or distribution occurred. If the Company subdivides the outstanding shares of the Class by reclassification or otherwise into a greater number of shares, the number of Shares purchasable hereunder shall be proportionately increased and the Warrant Price shall be proportionately decreased. If the

outstanding shares of the Class are combined or consolidated, by reclassification or otherwise, into a lesser number of shares, the Warrant Price shall be proportionately increased and the number of Shares shall be proportionately decreased.

2.2 Reclassification, Exchange, Combinations or Substitution . Upon any event whereby all of the outstanding shares of the Class are reclassified, exchanged, combined, substituted, or replaced for, into, with or by Company securities of a different class and/or series, then from and after the consummation of such event, this Warrant will be exercisable for the number, class and series of Company securities that Holder would have received had the Shares been outstanding on and as of the consummation of such event, and subject to further adjustment thereafter from time to time in accordance with the provisions of this Warrant. The provisions of this Section 2.2 shall similarly apply to successive reclassifications, exchanges, combinations substitutions, replacements or other similar events.

2.3 No Fractional Share . No fractional Share shall be issuable upon exercise of this Warrant and the number of Shares to be issued shall be rounded down to the nearest whole Share. If a fractional Share interest arises upon any exercise of the Warrant, the Company shall eliminate such fractional Share interest by paying Holder in cash the amount computed by multiplying the fractional interest by (i) the fair market value (as determined in accordance with Section 1.3 above) of a full Share, less (ii) the then-effective Warrant Price.

2.4 Notice/Certificate as to Adjustments . Upon each adjustment of the Warrant Price, Class and/or number of Shares, the Company, at the Company’s expense, shall notify Holder in writing within a reasonable time setting forth the adjustments to the Warrant Price, Class and/or number of Shares and facts upon which such adjustment is based. The Company shall, upon written request from Holder, furnish Holder with a certificate of its Chief Financial Officer, including computations of such adjustment and the Warrant Price, Class and number of Shares in effect upon the date of such adjustment.

SECTION 3. REPRESENTATIONS AND COVENANTS OF THE COMPANY .

3.1 Representations and Warranties . The Company represents and warrants to, and agrees with, the Holder that all Shares which may be issued upon the exercise of this Warrant shall, upon issuance, be duly authorized, validly issued, fully paid and non-assessable, and free of any liens and encumbrances except for restrictions on transfer provided for herein or under applicable federal and state securities laws. The Company covenants that it shall at all times cause to be reserved and kept available out of its authorized and unissued capital stock such number of shares of Common Stock as will be sufficient to permit the exercise in full of this Warrant.

3.2 Notice of Certain Events . If the Company proposes at any time to:

a. declare any dividend or distribution upon the outstanding shares of the Class, whether in cash, property, stock, or other securities and whether or not a regular cash dividend;

b. offer for subscription or sale pro rata to the holders of the outstanding shares of the Class any additional shares of any class or series of the Company’s stock (other than pursuant to contractual pre-emptive rights);

c. effect any reclassification, exchange, combination, substitution, reorganization or recapitalization of the outstanding shares of the Class; or

d. effect an Acquisition or to liquidate, dissolve or wind up.

then, in connection with each such event, the Company shall give Holder:

(1) at least five (5) Business Days prior written notice of the date on which a record will be taken for such dividend, distribution, or subscription rights (and specifying the date on which the holders of outstanding shares of the Class will be entitled thereto) or for determining rights to vote, if any, in respect of the matters referred to in (a) and (b) above; and

(2) in the case of the matters referred to in (c) and (d) above at least five (5) Business Days prior written notice of the date when the same will take place (and specifying the date on which the holders of outstanding shares of the Class will be entitled to exchange their shares for the securities or other property deliverable upon the occurrence of such event).

Reference is made to Section 1.6(c) whereby this Warrant will be deemed to be exercised pursuant to Section 1.2 hereof if the Company does not give written notice to Holder of a Cash/Public Acquisition as required by the terms hereof. Company will also provide information requested by Holder that is reasonably necessary to enable Holder to comply with Holder’s accounting or reporting requirements.

SECTION 4. REPRESENTATIONS, WARRANTIES OF THE HOLDER .

The Holder represents and warrants to the Company as follows:

4.1 Purchase for Own Account . This Warrant and the securities to be acquired upon exercise of this Warrant by Holder are being acquired for investment for Holder’s account, not as a nominee or agent, and not with a view to the public resale or distribution within the meaning of the Act. Holder also represents that it has not been formed for the specific purpose of acquiring this Warrant or the Shares.

4.2 Disclosure of Information . Holder is aware of the Company’s business affairs and financial condition and has received or has had full access to all the information it considers necessary or appropriate to make an informed investment decision with respect to the acquisition of this Warrant and its underlying securities. Holder further has had an opportunity to ask questions and receive answers from the Company regarding the terms and conditions of the offering of this Warrant and its underlying securities and to obtain additional information (to the extent the Company possessed such information or could acquire it without unreasonable effort or expense) necessary to verify any information furnished to Holder or to which Holder has access.

4.3 Investment Experience . Holder understands that the purchase of this Warrant and its underlying securities involves substantial risk. Holder has experience as an investor in securities of companies in a similar stage as the Company and acknowledges that Holder can bear the economic risk of such Holder’s investment in this Warrant and its underlying securities and has such knowledge and experience in financial or business matters that Holder is capable of evaluating the merits and risks of its investment in this Warrant and its underlying securities and/or has a preexisting personal or business relationship with the Company and certain of its officers, directors or controlling persons of a nature and duration that enables Holder to be aware of the character, business acumen and financial circumstances of such persons.

4.4 Accredited Investor Status . Holder is an “accredited investor” within the meaning of Regulation D promulgated under the Act.

4.5 The Act . Holder understands that this Warrant and the Shares issuable upon exercise hereof have not been registered under the Act in reliance upon a specific exemption therefrom, which exemption depends upon, among other things, the bona fide nature of the Holder’s investment intent as expressed herein. Holder understands that this Warrant and the Shares issued upon any exercise hereof must be held indefinitely unless subsequently registered under the Act and qualified under applicable state securities laws, or unless exemption from such registration and qualification are otherwise available. Holder is aware of the provisions of Rule 144 promulgated under the Act.

4.6 No Voting Rights . Holder, as a Holder of this Warrant, will not have any voting rights until the exercise of this Warrant.

SECTION 5. MISCELLANEOUS .

5.1 Term; Automatic Cashless Exercise Upon Expiration .

(a) Term . Subject to the provisions of Section 1.6 and 1.7 above, this Warrant is exercisable in whole or in part at any time and from time to time on or before 5:00 PM, Eastern time, on the Expiration Date and shall be void thereafter.

(b) Automatic Cashless Exercise upon Expiration . If, upon the Expiration Date, the fair market value of one Share (or other security issuable upon the exercise hereof) as determined in accordance with Section 1.3 above is greater than the Warrant Price in effect on such date, then this Warrant shall automatically be deemed on and as of such date to be exercised pursuant to Section 1.2 above as to all Shares (or such other securities) for which it shall not previously have been exercised, and the Company shall, within a reasonable time, deliver a certificate or establish a book entry position representing the Shares (or such other securities) issued upon such exercise to Holder.

5.2 Legends . Each certificate or book entry position evidencing Shares (and each certificate or book entry position evidencing the securities issued upon conversion of any Shares, if any) shall be imprinted with a legend in substantially the following form:

THE SHARES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ ACT ”), OR THE SECURITIES LAWS OF ANY STATE AND, EXCEPT AS SET FORTH IN THAT CERTAIN WARRANT TO PURCHASE STOCK ISSUED BY THE ISSUER TO ______________________ DATED NOVEMBER 1, 2018, MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED UNLESS AND UNTIL REGISTERED UNDER SAID ACT AND LAWS OR, IN THE OPINION OF LEGAL COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER, SUCH OFFER, SALE, PLEDGE OR OTHER TRANSFER IS EXEMPT FROM SUCH REGISTRATION.

5.3 Compliance with Securities Laws on Transfer . This Warrant and the Shares issued upon exercise of this Warrant (and the securities issuable, directly or indirectly, upon conversion of the Shares, if any) may not be transferred or assigned in whole or in part except (a) in compliance with applicable federal and state securities laws by the transferor and the transferee (including, without limitation, the delivery of investment representation letters and legal opinions reasonably satisfactory to the Company, as reasonably requested by the Company) and (b) with the prior written consent of the Company, provided that the Company’s prior written consent shall not be required in the case of a transfer of this Warrant in whole, or a transfer of the Shares issued upon exercise of this Warrant (and the securities issuable, directly or indirectly, upon conversion of the Shares, if any) in whole or in part, to an Affiliate of the Holder. “ Affiliate ”, with respect to any person or entity, means any person or entity that controls, is controlled by, or is under common control with, such person or entity.

5.4 Notices . All notices and other communications hereunder from the Company to the Holder, or vice versa, shall be deemed delivered and effective (i) when given personally, (ii) on the third (3rd) Business Day after being mailed by first-class registered or certified mail, postage prepaid, (iii) upon actual receipt if given by facsimile or electronic mail and such receipt is confirmed in writing by the recipient, or (iv) on the first Business Day following delivery to a reliable overnight courier service, courier fee prepaid, in any case at such address as may have been furnished to the Company or Holder, as the case may be, in writing by the Company or such Holder from time to time in accordance with the provisions of this Section 5.4. All notices to Holder shall be

addressed as follows until the Company receives notice of a change of address in connection with a transfer or otherwise:

Attn:

Tel.:

Fax:

Email:

Notice to the Company shall be addressed as follows until Holder receives notice of a change in address:

CTI BIOPHARMA CORP.

3101 Western Avenue, Suite 800

Seattle, Washington 98191

Attn: Chief Financial Officer

Facsimile: 2062846206@fax2mail.com

Email: dkirske@ctibiopharma.com

With copies (which shall not constitute notice) to:

WILSON SONSINI GOODRICH & ROSATI, P.C.

701 Fifth Avenue, Suite 5100

Seattle, Washington 98104

Attn: Michael Nordtvedt

Telephone: (206) 883-2524

Facsimile: (206) 883-2699

Email: mnordtvedt@wsgr.com

5.5 Waiver . This Warrant and any term hereof may be changed, waived, discharged or terminated (either generally or in a particular instance and either retroactively or prospectively) only by an instrument in writing signed by the party against which enforcement of such change, waiver, discharge or termination is sought.

5.6 Attorneys’ Fees . In the event of any dispute between the parties concerning the terms and provisions of this Warrant, the party prevailing in such dispute shall be entitled to collect from the other party all costs incurred in such dispute, including reasonable attorneys’ fees.

5.7 Counterparts; Facsimile/Electronic Signatures . This Warrant may be executed in counterparts, all of which together shall constitute one and the same agreement. Any signature page delivered electronically or by facsimile shall be binding to the same extent as an original signature page with regards to any agreement subject to the terms hereof or any amendment thereto.

5.8 Governing Law . This Warrant shall be governed by and construed in accordance with the laws of the State of Delaware, without giving effect to its principles regarding conflicts of law.

5.9 Headings . The headings in this Warrant are for purposes of reference only and shall not limit or otherwise affect the meaning of any provision of this Warrant.

5.10 Business Days . “ Business Day ” is any day that is not a Saturday, Sunday or a day on which Holder is closed.

5.11 Trading Days . “ Trading Day ” means any day on which the Common Stock is traded on a principal securities exchange or securities market on which the Common Stock is then traded; provided that “Trading Day” shall not include any day on which the Common Stock is scheduled to trade on such exchange or market for less than 4.5 hours or any day that the Common Stock is suspended from trading during the final hour of

trading on such exchange or market (or if such exchange or market does not designate in advance the closing time of trading on such exchange or market, then during the hour ending at 4:00:00 p.m., New York time). If the Common Stock is not traded in a Trading Market, then “ Trading Day ” shall have the same meaning as Business Day.

5.12 Expiration Date . “ Expiration Date ” means the earlier of (i) November 6, 2023, and (ii) the date that is six months after the expiration or termination of the Letter Agreement, if the Warrant has not vested and become exercisable prior to such date in accordance with Section 1.7.

[Balance of Page Intentionally Left Blank]

IN WITNESS WHEREOF, the parties have caused this Warrant to Purchase Stock to be executed by their duly authorized representatives effective as of the Issue Date written above.

“COMPANY”

CTI BIOPHARMA CORP.

By: _________________________

Name: _________________________

(Print)

Title:

“HOLDER”

By: _________________________

Name: _________________________

(Print)

Title:

APPENDIX 1

NOTICE OF EXERCISE


1.	The undersigned Holder hereby exercises its right to purchase __________ shares of the Common Stock of CTI BIOPHARMA CORP. (the “ Company ”) in accordance with the attached Warrant to Purchase Stock, and tenders payment of the aggregate Warrant Price for such shares as follows:

[ ] check in the amount of $__________ payable to order of the Company enclosed herewith

[ ] Wire transfer of immediately available funds to the Company’s account

[ ] Cashless Exercise pursuant to Section 1.2 of the Warrant

[ ] Other ( describe )


2.	Please issue a certificate or certificates or establish a book entry position or positions representing the Shares in the name specified below:

Attn:

Tel.:

Fax:

Email:


3.	By its execution below and for the benefit of the Company, Holder hereby restates each of the representations and warranties in Section 4 of the Warrant to Purchase Stock as of the date hereof.

_______________________

By _________________________________

Name:

Title:

Exhibit 10.45

CTI BIOPHARMA CORP.

EXECUTIVE INCENTIVE COMPENSATION PLAN

1. Purposes of the Plan . The Plan is intended to increase stockholder value and the success of the Company by motivating Employees to (i) perform to the best of their abilities and (ii) achieve the Company’s objectives.

2. Definitions .

(a) “ Actual Award ” means as to any Performance Period, the actual award (if any) payable to a Participant for the Performance Period, subject to the Committee’s authority under Section 3(d) to modify the award.

(b) “ Affiliate ” means any corporation or other entity (including, but not limited to, partnerships and joint ventures) controlled by the Company.

(d) “ Bonus Pool ” means the pool of funds available for distribution to Participants. Subject to the terms of the Plan, the Committee establishes the Bonus Pool (if any) for each Performance Period.

(e) “ Code ” means the Internal Revenue Code of 1986, as amended. Reference to a specific section of the Code or regulation thereunder will include such section or regulation, any valid regulation promulgated thereunder, and any comparable provision of any future legislation or regulation amending, supplementing or superseding such section or regulation.

(f) “ Committee ” means the committee appointed by the Board (pursuant to Section 5) to administer the Plan. Unless and until the Board otherwise determines, the Board’s Compensation Committee will administer the Plan and be considered the Committee for purposes of the Plan.

(g) “ Company ” means CTI BioPharma Corp., a Delaware corporation, or any successor thereto.

(h) “ Disability ” means a permanent and total disability determined in accordance with uniform and nondiscriminatory standards adopted by the Committee from time to time.

(i) “ Employee ” means any executive, officer, or key employee of the Company or of an Affiliate, whether such individual is so employed at the time the Plan is adopted or becomes so employed subsequent to the adoption of the Plan.

(j) “ Fiscal Year ” means the fiscal year of the Company.

(k) “ Participant ” means as to any Performance Period, an Employee who has been selected by the Committee for participation in the Plan for that Performance Period.

(l) “ Performance Period ” means the period of time for the measurement of the performance criteria that must be met to receive an Actual Award, as determined by the Committee in its sole discretion. A Performance Period may be divided into one or more shorter periods if, for example, but not by way of limitation, the Committee desires to measure some performance criteria over 12 months and other criteria over 3 months.

(m) “ Plan ” means this Executive Incentive Compensation Plan, as set forth in this instrument (including any appendix attached hereto) and as hereafter amended from time to time.

(n) “ Target Award ” means the target award, at 100% of target level performance achievement, payable under the Plan to a Participant for the Performance Period, as determined by the Committee in accordance with Section 3(b).

3. Selection of Participants and Determination of Awards .

(a) Selection of Participants . The Committee, in its sole discretion, will select the Employees who will be Participants for any Performance Period. Participation in the Plan is in the sole discretion of the Committee, on a Performance Period by Performance Period basis. Accordingly, an Employee who is a Participant for a given Performance Period in no way is guaranteed or assured of being selected for participation in any subsequent Performance Period or Performance Periods.

(b) Determination of Target Awards . The Committee, in its sole discretion, will establish a Target Award for each Participant (which may be expressed as a percentage of a Participant’s average annual base salary for the Performance Period or a fixed dollar amount or such other amount or based on such other formula as the Committee determines).

(c) Bonus Pool . Each Performance Period, the Committee, in its sole discretion, may establish a Bonus Pool, which pool may be established before, during or after the applicable Performance Period. Actual Awards will be paid from the Bonus Pool.

(d) Discretion to Modify Awards . Notwithstanding any contrary provision of the Plan, the Committee may, in its sole discretion and at any time, (i) increase, reduce or eliminate a Participant’s Actual Award, and/or (ii) increase, reduce or eliminate the amount allocated to the Bonus Pool. The Actual Award may be below, at or above the Target Award, in the Committee’s discretion. The Committee may determine the amount of any increase, reduction or elimination on the basis of such factors as it deems relevant, and will not be required to establish any allocation or weighting with respect to the factors it considers.

(e) Discretion to Determine Criteria . Notwithstanding any contrary provision of the Plan, the Committee, in its sole discretion, will determine the performance goals (if any) applicable to any Target Award (or portion thereof) which may include, without limitation: (i) research and development, (ii) regulatory milestones or regulatory-related goals, (iii) gross margin, (iv) financial milestones, (v) new product or business development, (vi) operating margin, (viii) product release timelines or other product release milestones, (ix) publications, (x) cash flow, (xi) procurement, (xii) savings, (xiii) internal structure, (xiv) leadership development, (xv) project, function or portfolio-specific milestones, (xvi) license or research collaboration agreements, (xvii) capital raising, (xviii) patentability and (xix) individual objectives such as peer reviews or other subjective or objective criteria. As determined by the Committee, the performance goals may be based on generally accepted accounting principles (“GAAP”) or non-GAAP results and any actual results may be adjusted by the Committee for one-time items or unbudgeted or unexpected items and/or payments of Actual Awards under the Plan when determining whether the performance goals have been met. The goals may be on the basis of any factors the Committee determines relevant, and may be on an individual, divisional, business unit, segment or Company-wide basis. Any criteria used may be measured on such basis as the Committee determines, including but not limited to, as applicable, (A) in absolute terms, (B) in combination with another performance goal or goals (for example, but not by way of limitation, as a ratio or matrix), (C) in relative terms (including, but not limited to, results for other periods, passage of time and/or against another company or companies or an index or indices), (D) on a per-share basis, (E) against the performance of the Company as a whole or a segment of the Company and/or (F) on a pre-tax or after-tax basis. The performance goals may differ from Participant to Participant and from award to award. Failure to meet the goals will result in a failure to earn the Target Award, except as provided in Section 3(d). The Committee also may determine that a Target Award (or portion thereof) will not have a performance goal associated with it but instead will be granted (if at all) in the sole discretion of the Committee.

4. Payment of Awards .

(a) Right to Receive Payment . Each Actual Award will be paid solely from the general assets of the Company. Nothing in this Plan will be construed to create a trust or to establish or evidence any Participant’s claim of any right other than as an unsecured general creditor with respect to any payment to which he or she may be entitled.

(b) Timing of Payment . Payment of each Actual Award shall be made as soon as practicable after the end of the Performance Period to which the Actual Award relates and after the Actual Award is approved by the Committee, but in no event later than the later of (i) the 15th day of the third month of the Fiscal Year immediately following the Fiscal Year in which the Participant’s Actual Award is first no longer subject to a substantial risk of forfeiture, and (ii) March 15 of the calendar year immediately following the calendar year in which the Participant’s Actual Award is first no longer subject to a substantial risk of forfeiture. Unless otherwise determined by the Committee, to earn an Actual Award a Participant must be employed by the Company or any Affiliate on the date the Actual Award is paid.

It is the intent that this Plan be exempt from or comply with the requirements of Code Section 409A so that none of the payments to be provided hereunder will be subject to the additional tax imposed under Code Section 409A, and any ambiguities herein will be interpreted to be so exempt or so comply. Each payment under this Plan is intended to constitute a separate payment for purposes of Treasury Regulation Section 1.409A-2(b)(2).

(d) Payment in the Event of Death or Disability . If a Participant dies or is terminated due to his or her Disability prior to the payment of an Actual Award the Committee has determined will be paid for a prior Performance Period, the Actual Award will be paid to his or her estate or to the Participant, as the case may be, subject to the Committee’s discretion to reduce or eliminate any Actual Award otherwise payable.

5. Plan Administration .

(a) Committee is the Administrator . The Plan will be administered by the Committee. The Committee will consist of not less than 2 members of the Board. The members of the Committee will be appointed from time to time by, and serve at the pleasure of, the Board.

(b) Committee Authority . It will be the duty of the Committee to administer the Plan in accordance with the Plan’s provisions. The Committee will have all powers and discretion necessary or appropriate to administer the Plan and to control its operation, including, but not limited to, the power to (i) determine which Employees will be granted awards, (ii) prescribe the terms and conditions of awards, (iii) interpret the Plan and the awards, (iv) adopt such procedures and sub-plans as are necessary or appropriate to permit participation in the Plan by Employees who are foreign nationals or employed outside of the United States, (v) adopt rules for the administration, interpretation and application of the Plan as are consistent therewith, and (vi) interpret, amend or revoke any such rules.

(c) Decisions Binding . All determinations and decisions made by the Committee, the Board, and/or any delegate of the Committee pursuant to the provisions of the Plan will be final, conclusive, and binding on all persons, and will be given the maximum deference permitted by law.

(d) Delegation by Committee . The Committee, in its sole discretion and on such terms and conditions as it may provide, may delegate all or part of its authority and powers under the Plan to one or more directors and/or officers of the Company.

(e) Indemnification . Each person who is or will have been a member of the Committee will be indemnified and held harmless by the Company against and from (i) any loss, cost, liability, or expense that may be imposed upon or reasonably incurred by him or her in connection with or resulting from any claim, action, suit, or proceeding to which he or she may be a party or in which he or she may be involved by reason of any action taken or failure to act under the Plan or any award, and (ii) from any and all amounts paid by him or her in settlement thereof, with the Company’s approval, or paid by him or her in satisfaction of any judgment in any such claim, action, suit, or proceeding against him or her, provided he or she will give the Company an opportunity, at its own expense, to handle and defend the same before he or she undertakes to handle and defend it on his or her own behalf. The foregoing right of indemnification will not be exclusive of any other rights of indemnification to which such persons may be entitled under the Company’s Certificate of Incorporation or Bylaws, by contract, as a matter of law, or otherwise, or under any power that the Company may have to indemnify them or hold them harmless.

6. General Provisions .

(a) Tax Withholding . The Company (or the Affiliate employing the applicable Employee) will withhold all applicable taxes from any Actual Award, including any federal, state and local taxes (including, but not limited to, the Participant’s FICA and SDI obligations).

(b) No Effect on Employment or Service . Nothing in the Plan will interfere with or limit in any way the right of the Company (or the Affiliate employing the applicable Employee) to terminate any Participant’s employment or service at any time, with or without cause. For purposes of the Plan, transfer of employment of a Participant between the Company and any one of its Affiliates (or between Affiliates) will not be deemed a termination of employment. Employment with the Company and its Affiliates is on an at-will basis only. The Company expressly reserves the right, which may be exercised at any time and without regard to when during a Performance Period such exercise occurs, to terminate any individual’s employment with or without cause, and to treat him or her without regard to the effect that such treatment might have upon him or her as a Participant.

(c) Participation . No Employee will have the right to be selected to receive an award under this Plan, or, having been so selected, to be selected to receive a future award.

(d) Successors . All obligations of the Company under the Plan, with respect to awards granted hereunder, will be binding on any successor to the Company, whether the existence of such successor is the result of a direct or indirect purchase, merger, consolidation, or otherwise, of all or substantially all of the business or assets of the Company.

(e) Nontransferability of Awards . No award granted under the Plan may be sold, transferred, pledged, assigned, or otherwise alienated or hypothecated, other than by will, by the laws of descent and distribution. All rights with respect to an award granted to a Participant will be available during his or her lifetime only to the Participant.

7. Amendment, Termination, and Duration .

(a) Amendment, Suspension, or Termination . The Board or the Committee, in its sole discretion, may amend or terminate the Plan, or any part thereof, at any time and for any reason. The amendment, suspension or termination of the Plan will not, without the consent of the Participant, alter or impair any rights or obligations under any Actual Award theretofore earned by such Participant. No award may be granted during any period of suspension or after termination of the Plan.

(b) Duration of Plan . The Plan will commence on the date first adopted by the Board or the Committee, and subject to Section 7(a) (regarding the Board’s and/or the Committee’s right to amend or terminate the Plan), will remain in effect thereafter until terminated.

8. Legal Construction .

(a) Gender and Number . Except where otherwise indicated by the context, any masculine term used herein also will include the feminine and any feminine term used herein also will include the masculine; the plural will include the singular and the singular will include the plural.

(b) Severability . In the event any provision of the Plan will be held illegal or invalid for any reason, the illegality or invalidity will not affect the remaining parts of the Plan, and the Plan will be construed and enforced as if the illegal or invalid provision had not been included.

(c) Requirements of Law . The granting of awards under the Plan will be subject to all applicable laws, rules and regulations, and to such approvals by any governmental agencies or national securities exchanges as may be required.

(d) Governing Law . The Plan and all awards will be construed in accordance with and governed by the laws of the State of Washington, but without regard to its conflict of law provisions.

(e) Bonus Plan . The Plan is intended to be a “bonus program” as defined under U.S. Department of Labor regulation 2510.3-2(c) and will be construed and administered in accordance with such intention.

(f) Captions . Captions are provided herein for convenience only, and will not serve as a basis for interpretation or construction of the Plan.

* * *

Exhibit 21.1

Subsidiaries of CTI BioPharma Corp.

Aequus Biopharma, Inc., a Washington corporation and CTI Life Sciences Ltd., a U.K. limited company.

The above paragraph includes all material subsidiaries of CTI BioPharma Corp.

Exhibit 23.1

CONSENT OF ERNST & YOUNG LLP, INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the following Registration Statements:


(1)	Form S-3 No. 333-221382 of CTI BioPharma Corp. and the related prospectus


(2)	Form S-3 No. 333-200453 of CTI BioPharma Corp. and the related prospectus


(3)	Form S-3 No. 333-192749 of Cell Therapeutics, Inc. and the related prospectus


(4)	Form S-3 No. 333-192748 of Cell Therapeutics, Inc. and the related prospectus


(5)	Form S-3 No. 333-182330 of Cell Therapeutics, Inc. and the related prospectus


(6)	Form S-3 No. 333-163479 of Cell Therapeutics, Inc. and the related prospectus


(7)	Form S-3 No. 333-157376 of Cell Therapeutics, Inc. and the related prospectus


(8)	Form S-3 No. 333-152171 of Cell Therapeutics, Inc. and the related prospectus


(9)	Form S-3 No. 333-149981 of Cell Therapeutics, Inc. and the related prospectus


(10)	Form S-3 No. 333-149980 of Cell Therapeutics, Inc. and the related prospectus


(11)	Form S-3 No. 333-134126 of Cell Therapeutics, Inc. and the related prospectus


(12)	Form S-3 No. 333-108926 of Cell Therapeutics, Inc. and the related prospectus


(13)	Form S-8 No. 333-225116 pertaining to the CTI BioPharma Corp. Amended and Restated 2017 Equity Incentive Plan


(14)	Form S-8 No. 333-218947 pertaining to the CTI BioPharma Corp. Stock Option Agreement


(15)	Form S-8 No. 333-218946 pertaining to the CTI BioPharma Corp. Stock Option Agreement


(16)	Form S-8 No. 333-211006 pertaining to the CTI BioPharma Corp. 2015 Equity Incentive Plan, as amended and restated and the CTI BioPharma Corp. 2017 Equity Incentive Plan


(17)	Form S-8 No. 333-207177 pertaining to the CTI BioPharma Corp 2007 Employee Stock Purchase Plan, as amended and restated


(18)	Form S-8 No. 333-207176 pertaining to the CTI BioPharma Corp. 2015 Equity Incentive Plan, as amended and restated and the CTI BioPharma Corp. 2017 Equity Incentive Plan


(19)	Form S-8 No. 333-196510 pertaining to the CTI BioPharma Corp. 2007 Equity Incentive Plan, as amended, and restated CTI BioPharma Corp. 2017 Equity Incentive Plan


(20)	Form S-8 No. 333-189611 pertaining to the Cell Therapeutics, Inc. 2007 Equity Incentive Plan


(21)	Form S-8 No. 333-184004 pertaining to the Cell Therapeutics, Inc. 2007 Equity Incentive Plan


(22)	Form S-8 No. 333-178158 pertaining to the Cell Therapeutics, Inc. 2007 Equity Incentive Plan


(23)	Form S-8 No. 333-170044 pertaining to the Cell Therapeutics, Inc. 2007 Equity Incentive Plan


(24)	Form S-8 No. 333-162955 pertaining to the Cell Therapeutics, Inc. 2007 Equity Incentive Plan and 2007 Employee Stock Purchase Plan


(25)	Form S-8 No. 333-158260 pertaining to the Cell Therapeutics, Inc. 2007 Equity Incentive Plan and 2007 Employee Stock Purchase Plan


(26)	Form S-8 No. 333-152168 pertaining to the Cell Therapeutics, Inc. Amended and Restated 2007 Equity Incentive Plan


(27)	Form S-8 No. 333-146624 pertaining to the Cell Therapeutics, Inc. Amended and Restated 2007 Equity Incentive Plan

of our reports dated March 13, 2019, with respect to our audits of the consolidated financial statements and the related consolidated financial statement schedule of CTI BioPharma Corp. as of and for the year ended December 31, 2018 and our audit of the effectiveness of internal control over financial reporting of CTI BioPharma Corp. as of December 31, 2018, included in this Annual Report (Form 10-K) of CTI BioPharma Corp. for the year ended December 31, 2018.

/s/ Ernst & Young LLP

Seattle, Washington

March 13, 2019

Exhibit 23.2

CONSENT OF MARCUM LLP, INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement of CTI BioPharma Corp. on Form S-3 (File Nos. 333-108926, 333-134126, 333-149980, 333-149981, 333-152171, 333-157376, 333-163479, 333-182330, 333-192748, 333-192749, 333-200453 and 333-221382) and Form S-8 (File Nos. 333-146624, 333-152168, 333-158260, 333-162955, 333-170044, 333-178158, 333-184004, 333-189611, 333-196510, 333-207176, 333-207177, 333-211006, 333-218946, and 333-218947) of our report dated March 7, 2018, with respect to our audit of the consolidated financial statements and the related consolidated financial statement schedules of CTI BioPharma Corp. as of December 31, 2017 and for the year then ended, which report is included in this Annual Report on Form 10-K of CTI BioPharma Corp. for the year ended December 31, 2018.

/s/ Marcum LLP

San Francisco, CA

March 13, 2019

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER
PURSUANT TO
SECURITIES EXCHANGE ACT OF 1934 RULES 13a-14(a) AND 15d-14(a)
AS ADOPTED PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Adam R. Craig, certify that:

1. I have reviewed this Annual Report on Form 10-K of CTI BioPharma Corp.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions) of internal control over financial reporting:

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: March 13 , 2019



By: /s/ Adam R. Craig
Adam R. Craig
President and Chief Executive Officer

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER
PURSUANT TO
SECURITIES EXCHANGE ACT OF 1934 RULES 13a-14(a) AND 15d-14(a)
AS ADOPTED PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, David H. Kirske, certify that:

1. I have reviewed this Annual Report on Form 10-K of CTI BioPharma Corp.;

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: March 13, 2019



By: /s/ David H. Kirske
David H. Kirske
Chief Financial Officer

Exhibit 32

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES‑OXLEY ACT OF 2002

I, Adam R. Craig, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002, that the Annual Report of CTI BioPharma Corp. on Form 10‑K for the fiscal year ended December 31, 2018 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Annual Report on Form 10‑K fairly presents in all material respects the financial condition and results of operations of CTI BioPharma Corp.

A signed original of this written statement required by Section 906 has been provided to CTI BioPharma Corp. and will be retained by CTI BioPharma Corp. and furnished to the Securities and Exchange Commission or its staff upon request.



Dated: March 13, 2019	By: /s/ Adam R. Craig
	Adam R. Craig
	President and Chief Executive Officer

I, David H. Kirske, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002, that the Annual Report of CTI BioPharma Corp. on Form 10‑K for the fiscal year ended December 31, 2018 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Annual Report on Form 10‑K fairly presents in all material respects the financial condition and results of operations of CTI BioPharma Corp.



Dated: March 13, 2019	By: /s/ David H. Kirske
	David H. Kirske
	Chief Financial Officer