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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 10-K

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(Mark One)

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For the fiscal year ended December 31, 2020

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For the transition period from                      to                     

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Commission file number: 001-37569

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Strongbridge Biopharma plc

(Exact name of Registrant as specified in its charter)

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900 Northbrook Drive

Suite 200

Trevose, PA 19053

+1 610-254-9200

(Address of principal executive offices)

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

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

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

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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

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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    ☐ No

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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    ☐   No

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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.

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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 has filed a report on and attestation to management’s assessment of the effectiveness of its internal controls over financial reporting under Section 404(b) of the Sarbanes Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

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

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The aggregate market value of the voting and non-voting stock held by non-affiliates of the Registrant, as of June 30, 2020, the last business day of the Registrant’s most recently completed second fiscal quarter, was approximately $190,614,601. Solely for purposes of this disclosure, ordinary shares held by executive officers and directors of the Registrant as of such date have been excluded because such persons may be deemed to be affiliates. This determination of executive officers and directors as affiliates is not necessarily a conclusive determination for any other purposes.

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67,510,620 ordinary shares were issued and outstanding as of February 22, 2021.

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DOCUMENTS INCORPORATED BY REFERENCE: NONE

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Strongbridge Biopharma plc

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CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS AND MARKET DATA

This Annual Report on Form 10-K (“Annual Report”) contains forward-looking statements that involve substantial risks and uncertainties. All statements, other than statements of historical facts, contained in this Annual Report, including statements regarding our future results of operations and financial position, business strategy, prospective products, product approvals, research and development costs, timing and results of clinical trials, size of market or patient population, timing and likelihood of success, plans and objectives of management for future operations, and future results of current and anticipated products, are forward-looking statements. These statements relate to future events or to our future financial performance and involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. The words “anticipate,” “assume,” “believe,” “contemplate,” “continue,” “could,” “estimate,” “expect,” “goal,” “intend,” “may,” “might,” “objective,” “plan,” “potential,” “predict,” “project,” “positioned,” “seek,” “should,” “target,” “will,” “would,” or the negative of these terms or other similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. These forward-looking statements are based on current expectations, estimates, forecasts and projections about our business and the industry in which we operate and management’s beliefs and assumptions, are not guarantees of future results, performance or developments and involve known and unknown risks, uncertainties and other factors that may cause our actual results or developments to differ materially from the expectations contained in the forward-looking statements. Such risks and uncertainties include those described throughout this Annual Report and particularly in “Risk Factors” in Part I, Item 1A of this Annual Report. Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements. Readers are urged to carefully review and consider the various disclosures made in this Annual Report and in other documents we file from time to time with the Securities and Exchange Commission (the “SEC”) that disclose risks and uncertainties that may affect our business. The forward-looking statements included in this Annual Report do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures or investments we may make. In addition, the forward-looking statements in this Annual Report are made as of the date of this filing, and we do not undertake, and expressly disclaims any duty, to update such statements, whether as a result of new information, new developments or otherwise, except to the extent that disclosure may be required by law.

Solely for convenience, the trademarks and trade names in this Annual Report are referred to without the ^® and ™ symbols, but absence of such references should not be construed as any indicator that their respective owners will not assert, to the fullest extent under applicable law, their rights thereto. The trademarks, trade names and service marks appearing in this Annual Report are the property of their respective owners.

Unless the context requires otherwise, references in this Annual Report to “Strongbridge,” “we,” “us” and “our” refer to Strongbridge Biopharma plc.

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As used in this Annual Report, the term “levoketoconazole” refers to our investigative drug product candidate being developed for the potential treatment of endogenous Cushing’s syndrome.  The term “Recorlev” refers to the proposed branded pharmaceutical name used by the Company for levoketoconazole, if approved, and is used interchangeably in this Annual Report with the term levoketoconazole, unless the context requires otherwise.  The safety and efficacy of Recorlev® (levoketoconazole) for the treatment of endogenous Cushing’s syndrome have not been established.  

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ketoconazole in our NDA for Recorlev. A similar marketing authorization pathway is available in most of the rest of the world, and we believe that the studies supporting U.S. approval will likewise support approvals to market Recorlev elsewhere, including in the European Union.  

Rare Neuromuscular Franchise

Product Sales

Our product sales in 2020 resulted from sales of Keveyis. We operate in one operating reporting segment. We sell Keveyis to one specialty pharmacy provider (the “Customer”), who is the exclusive distributor of Keveyis in the United States. We recognize net product sales at the time our product is received by the Customer. Keveyis is subsequently sold to patients, who are covered by payors that may provide for government-mandated or privately negotiated rebates with respect to the purchase of Keveyis.

Our Strategy

Our goal is to transform the lives of patients by building a leading franchise-based, commercially-oriented biopharmaceutical company addressing rare diseases with significant unmet medical needs. We are focused on developing, in-licensing, acquiring and eventually commercializing products and product candidates that target rare diseases across various therapeutic areas.

To achieve our goal, we are pursuing the following strategies:

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Our Product Candidate Pipeline

The following table illustrates our product candidates by stage:

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Our Rare Endocrine Franchise

Recorlev

Overview

Recorlev (levoketoconazole), the pure 2S,4R enantiomer of the enantiomeric pair comprising ketoconazole, is a next-generation steroidogenesis inhibitor being investigated as a chronic therapy for adults with endogenous Cushing’s syndrome. The active pharmaceutical ingredient in Recorlev, levoketoconazole, exerts its primary therapeutic effect by blocking the synthesis of cortisol in the adrenal glands, leading to the reduction and, ideally, the normalization of blood cortisol. Recorlev has been granted orphan drug designation by the FDA and the EMA and is being developed using a dose regimen of twice daily oral administration.

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Ketoconazole, although not approved for such use in the United States, is the most frequently prescribed drug therapy for endogenous Cushing’s syndrome. It is used to reduce blood cortisol and treat comorbidities associated with Cushing’s syndrome. Molecules of ketoconazole form as mirror images, referred to as enantiomers. Manufactured ketoconazole consists of two cis enantiomers, dextroketoconazole and levoketoconazole, that are found in equal amounts, and is therefore referred to as a racemate. Levoketoconazole is a pure form of one of the two enantiomers of ketoconazole. Single-enantiomer drugs, like Recorlev, may offer safety and efficacy advantages over racemates because one of the enantiomers in a racemate can have safety issues or be less effective in the treatment of the disorder or disease. The more therapeutically favorable enantiomer may be known as the eutomer. We believe that levoketoconazole is the eutomer of ketoconazole with respect to cortisol synthesis inhibition and treatment of endogenous Cushing’s syndrome.

Levoketoconazole inhibits the cortisol synthesis pathway at several points. Based on the results from our SONICS and LOGICS clinical trials, we believe that Recorlev can have a beneficial impact on hypercortisolism, the hallmark of endogenous Cushing’s syndrome, as well as benefits related to several comorbidities of endogenous Cushing’s syndrome, including those associated with cardiovascular disease risk, such as diabetes, weight gain and elevation in LDL-cholesterol. In addition, we believe that Recorlev may offer an advantageous safety profile in a representative population with endogenous Cushing’s syndrome. We believe that Recorlev has the potential to become a new standard of care for the drug therapy of endogenous Cushing’s syndrome because it may provide a favorable efficacy, safety and tolerability profile compared to current drug therapies, including ketoconazole. Based on results of the SONICS and LOGICS clinical trials, Recorlev effectively reduces UFC, in contrast to Korlym, and demonstrates anti-hyperglycemic effects, in contrast to Signifor and Signifor LAR. In addition, we believe Recorlev may have an improved safety profile compared with that of ketoconazole.

Overview of Endogenous Cushing’s Syndrome

There are two variants of Cushing’s syndrome: exogenous, which is caused by factors outside the body (e.g., corticosteroid or cortisol-like medications) and endogenous, which is caused by factors within the body. The signs and symptoms may be the same in both forms. The much more common form is exogenous Cushing’s syndrome, which is often found in people taking cortisol-like medications for long periods of time or for shorter periods of time using more potent forms. Cortisol-like medications are often used to treat inflammatory disorders such as asthma and rheumatoid arthritis. Unlike endogenous Cushing’s syndrome, exogenous Cushing’s syndrome may be alleviated by withdrawing the inciting medication.

Endogenous Cushing’s syndrome is a rare endocrine disorder characterized by sustained elevated blood cortisol. Cortisol is a hormone produced in the adrenal gland and is naturally secreted as an end-product of the activity of the hypothalamic-pituitary-adrenal axis. Corticotropin-releasing-hormone (“CRH”) is secreted from the hypothalamus and stimulates the secretion and release of adrenocorticotropin (“ACTH”) from the pituitary gland, which in turn stimulates cortisol (and other hormone) secretion from the adrenal gland. Cortisol itself exerts negative feedback control on both CRH in the hypothalamus and ACTH in the pituitary gland, thereby reducing CRH and ACTH secretion, keeping cortisol levels in a normal range.

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The most common form of endogenous Cushing’s syndrome is called Cushing’s disease, which is typically caused by a benign pituitary tumor that secretes ACTH autonomously. Cushing’s disease represents approximately 70% to 80% of patients with endogenous Cushing’s syndrome. Other causes of endogenous ACTH-dependent Cushing’s syndrome include extrapituitary tumors producing ACTH, known as ectopic ACTH, or less often CRH (ectopic CRH). The source of ectopic ACTH/CRH secretion is most often small-cell carcinoma of the lung or bronchial carcinoid tumors, but neuroendocrine tumors found in many different organs can also be sources. In a smaller number of cases, approximately 20%, endogenous Cushing’s syndrome is ACTH-independent, meaning that it does not arise through tumor secretion of ACTH but rather results from excess secretion of cortisol itself in the adrenal gland by adrenocortical tumors, either benign or malignant, or by non-malignant enlargement of the adrenal glands called hyperplasia.

In patients with endogenous Cushing’s syndrome, the normal feedback mechanisms of the hypothalamic-pituitary-adrenal axis are disrupted as a result of a tumor autonomously secreting ACTH, CRH or cortisol. This causes chronic exposure to high circulating cortisol levels that give rise to the clinical state of Cushing’s syndrome. The most common signs and symptoms of the syndrome include: weight gain, especially in the upper body with a rounded face (“moon face”) and extra fat on the upper back and above the collarbones; high blood sugar or diabetes mellitus; high blood pressure or hypertension; thin bones or osteoporosis; muscle loss or sarcopenia; thin, fragile skin that bruises easily; purple-red stretch marks called striae, usually over the abdomen and under the arms; depression and difficulty thinking clearly; too much facial hair, or hirsutism, usually noticed only in women; irregular or absent menstrual periods and infertility; reduced sex drive or libido; and in children, poor height growth.

An estimated 25,000 patients in the United States and 40,000 patients in Europe are diagnosed with endogenous Cushing’s syndrome. When first diagnosed, patients are most commonly adults aged 20 to 50 and five times more often women than men. However, endogenous Cushing’s syndrome is believed to be underdiagnosed due to lack of disease recognition, resulting in a delay in diagnosis of six years on average. Endogenous Cushing’s syndrome patients are believed to have a mortality risk two to three times that of the age-and-gender-matched general population, with cardiovascular disease, venous thrombosis and infections being the primary causes of death.

Current Treatment Landscape and Limitations of Current Treatment Options

Treatment of endogenous Cushing’s syndrome varies depending on the cause of the disease. For patients with Cushing’s disease, initial treatment is almost always the attempted surgical removal of the pituitary tumor. In anticipation of surgery and when surgery is not effective or not feasible, drug or radiation therapy, or both, is used to suppress excessive cortisol production and the accompanying clinical symptoms.

A typical approach to drug therapy is to inhibit cortisol synthesis through the oral administration of an inhibitor of enzymes that regulate adrenal cortisol synthesis. Ketoconazole acts in this way and is the most widely used drug therapy for endogenous Cushing’s syndrome in the United States. Although approved in the European Union for this indication, ketoconazole is not approved for this indication by the FDA and is therefore prescribed “off-label”. The percentage of endogenous Cushing’s syndrome patients treated with ketoconazole monotherapy who achieve normalized levels of cortisol, assessed by measuring UFC has been reported from retrospective, uncontrolled studies, with varying definitions of normalization, to be between 33% and 100%. Data from a retrospective study of 200 patients in 14 French centers solely treated with ketoconazole for endogenous Cushing’s syndrome between 1995 and 2012 suggested that ketoconazole controlled cortisol in approximately 50% of patients and improved clinical symptoms. Also, beneficial effects of oral ketoconazole on clinical symptoms and signs that drive the morbidity and mortality of endogenous Cushing’s syndrome have been reported including reduction in high blood pressure, improvement of diabetes, and normalization of hypokalemia, or low potassium blood levels. However, some patients treated with ketoconazole experience tolerability issues and, in some cases, liver injury (also known as hepatotoxicity).

As a result of the hepatotoxicity risk, the FDA has issued a boxed warning to prescribers in the labeling describing the use of ketoconazole to treat fungal infections, the only approved indication for ketoconazole in the United States. The FDA has also cautioned that safety and effectiveness have not been established for off-label use of ketoconazole in Cushing’s syndrome. Although elevations in liver enzymes associated with ketoconazole are generally mild to moderate and reversible upon cessation of drug, in rare cases, severe hepatotoxicity may occur (estimated as one in every 10,000 to 15,000 patients). In extremely rare cases, ketoconazole-related liver injury may be irreversible and

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result in death or require liver transplantation. In July 2013, the Committee for Medicinal Products for Human Use (“CHMP”) recommended that ketoconazole be withdrawn for use as an antifungal agent in the European Union. The EMA adopted the CHMP recommendation in August 2013, and the recommendation was subsequently confirmed by the European Commission. In September 2014, HRA Pharma received a recommendation of approval from the EMA for ketoconazole for the treatment of endogenous Cushing’s syndrome, based on the well-established use of ketoconazole in medical practice as well as documentation from retrospective studies in the literature.

Metyrapone is another cortisol synthesis inhibitor that blocks cortisol in a different way than ketoconazole or Recorlev. It is not approved for treatment of Cushing’s syndrome in the US but is used off-label. Metyrapone is approved for use in the United Kingdom and certain other countries as a therapeutic drug for CS. Elsewhere, including in the US, it is approved as a diagnostic agent in Cushing’s disease. A drug that works through a similar pathway as metyrapone, called Isturisa (osilodrostat), was granted a marketing authorization in the European Union on January 15, 2020 and in the United States on March 6, 2020. Etomidate is an intravenously administered sedative that potently inhibits 11β-hydroxylase, like metyrapone and osilodrostat, and is highly effective to reduce cortisol, but its use is typically limited to the inpatient setting.

An alternative medical approach to treating Cushing’s syndrome targets pituitary tumors that produce ACTH (i.e., in Cushing’s disease). Among Cushing’s disease patients, the dopamine agonist cabergoline, which is not approved for use to treat Cushing’s disease in the United States, has been shown to achieve normalization of UFC levels, gold-standard evidence of disease control, in about 30% of patients. The SSA (somatosatin analog) pasireotide, which is marketed as Signifor and Signifor LAR for the treatment of Cushing’s disease in the United States, has shown normalization of UFC levels with stable dosing of the immediate-release formulation in 15% of patients at a dosage of 600 µg twice-daily and in 26% of patients at a dosage of 900 µg twice-daily over a six-month period. Certain SSAs, including Signifor, are known to have undesirable side effects on glucose metabolism. Forty percent of patients with Cushing’s disease treated with Signifor in its Phase 3 clinical trial reported the occurrence of hyperglycemia-related adverse events, and in the cohort receiving Signifor 900 µg twice-daily, glycated hemoglobin (“HbA1c”) increased from 5.8% at baseline to 7.3% at Month 6.

Another alternative drug therapy, Korlym, or mifepristone, works by inhibiting the action of cortisol at the cortisol-receptor level but does not lower blood cortisol levels, which actually tend to increase during therapy. As a result of this mechanism of action, it is not possible to monitor response (i.e., effectiveness and safety) to Korlym by measuring UFC or cortisol levels (from blood or saliva), which are the standard ways clinicians monitor disease progression and response to treatment. As a result, Korlym is usually titrated and monitored through use of clinical signs and symptoms improvements (e.g., blood sugar reductions). Korlym has been approved in the United States to control hyperglycemia secondary to hypercortisolism in patients with endogenous Cushing’s syndrome who also have diabetes mellitus. About one-third of patients with endogenous Cushing syndrome have diabetes. Korlym is contraindicated in pregnant women and in women with a history of unexplained vaginal bleeding, as its side effects include termination of pregnancy, endometrial thickening and vaginal bleeding. It is also frequently associated with hypokalemia.

Mitotane is an adrenolytic agent (i.e., it destroys the adrenal gland at higher doses) that inhibits steroidogenesis non-selectively at low doses, mainly at 20,22-desmolase (cholesterol side-chain cleavage).  It seems to be used primarily in adrenocortical cancer, where it had an FDA indication.  There are no prospective clinical trials describing the use of mitotane in non-malignant endogenous CS, and it is not approved for that use.

We believe that the efficacy and usage limitations and safety concerns associated with currently available drug therapies for endogenous Cushing’s syndrome are an important reason why a significant unmet medical need exists among endogenous Cushing’s syndrome patients with persistent or recurrent disease post-surgery. In a survey we commissioned in 2019 of 253 U.S. physicians treating patients with Cushing’s syndrome, when asked, of your endogenous Cushing’s patients currently receiving pharmacological therapy, what percent would you consider have their symptoms controlled vs. uncontrolled by their medication(s) for CS? The surveyed physicians indicated that approximately 39% of patients were uncontrolled vs. 61% were controlled. We believe that our potential addressable market for Recorlev includes diagnosed endogenous Cushing’s syndrome patients that at any time are eligible for drug therapy, including patients anticipating surgery, for whom surgery or radiation is not feasible, is contraindicated or has been unsuccessful.

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Levoketoconazole Mechanism of Action and Preclinical Results

Levoketoconazole, like ketoconazole, is an adrenal steroidogenesis inhibitor that inhibits the cortisol synthesis pathway at multiple points. The following graphic illustrates the cortisol synthesis pathway:

Preclinical and pharmacokinetic data provide evidence that the efficacy of levoketoconazole to treat hypercortisolism is due primarily to the ability of levoketoconazole to inhibit adrenal cortisol synthesis. This conclusion is inferred from evidence that the antipode of levoketoconazole (dextroketoconazole) is a far less potent inhibitor of cortisol synthesis in vitro. Furthermore, the relatively greater potency of levoketoconazole to inhibit cortisol (and androgen) synthesis implies that, all else being equal, a lower dose of levoketoconazole could result in the same or better efficacy as a higher dose of ketoconazole, thus potentially reducing the risk of toxicity, such as liver toxicity, if such toxicity is contributed approximately equally by each enantiomer of ketoconazole. These conclusions are based on the following:

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Clinical Trials of Recorlev in Diabetes

Previously, Recorlev (then named DIO-902) was studied clinically for the treatment of type 2 diabetes. DiObex, our licensee from 2004 to 2008, initiated three clinical trials to investigate the use of levoketoconazole for treatment of type 2 diabetes and two clinical drug-drug interaction studies in healthy volunteers. Results from these studies established the clinical pharmacology profile of levoketoconazole, contributed to an understanding of its potential efficacy in type 2 diabetes and established preliminary clinical safety and tolerability profiles.

Thirty-seven patients with Type 2 Diabetes Mellitus (“T2DM”) were enrolled in a Phase 1/2a double-blind, placebo-controlled, parallel-group study and administered levoketoconazole at 200, 400, or 600 mg once daily (QD), ketoconazole 400 mg QD, or placebo, for 14 days (Study DIO-501). A total of 21 patients with T2DM received levoketoconazole. Levels of LDL-cholesterol were significantly decreased in patients treated with levoketoconazole. Non-significant trends suggestive of improvement in glycemic control and reduction in cortisol secretion relative to placebo were observed.

Administration of levoketoconazole in patients with T2DM was safe and well tolerated. Headache and nausea were the most frequently reported adverse events, some of which were considered drug-related. No clinically significant changes in hematology, blood chemistry, and urinalysis were noted in any treatment group. No treatment-related changes in markers of liver injury (LFTs) were reported. Plasma area under the concentration-time curves (AUCs) and maximum concentration (Cmax) increased in a non-proportional manner over the dose range of 200 mg to 400 mg; clearance was decreased at 600 mg QD.

Two Phase 2b studies (one main study plus an open-label extension) designed to evaluate the efficacy of levoketoconazole in combination with atorvastatin in patients with T2DM were voluntarily terminated early due to the perceived high regulatory and commercial hurdles for the approval and use of levoketoconazole in T2DM at the time of development in 2008, given the emerging benefits and risks profile observed. Study DIO-502 was a four-month, double-blind, randomized, placebo-controlled, eight-arm dose-ranging trial of levoketoconazole (150 mg to 450 mg QD) with concomitant administration of metformin and either atorvastatin 10 mg or matching placebo for atorvastatin 10 mg. Study DIO-503 was an open-label, follow-on extension to Study DIO-502 to evaluate safety, tolerability, and pharmacodynamics after 24 weeks of dosing with levoketoconazole in combination with metformin and atorvastatin or placebo in patients with T2DM. At the time of study terminations, of 133 patients enrolled in the combined studies, 129 were treated, and 97 received at least one dose of levoketoconazole. A total of 47 patients received treatment with levoketoconazole between one and three-months duration, while 38 patients exceeded three months of dosing. The frequency of adverse events reported was generally similar across treatment arms. Diarrhea was the most frequently reported adverse events overall with administration of levoketoconazole. No serious adverse events were reported in the terminated studies.

A safety signal of elevated serum transaminases was identified in the DIO-502 and DIO-503 studies. Three of 129 randomized and treated patients were discontinued prematurely from the studies as required by the safety monitoring plan for elevated LFTs. All three were receiving levoketoconazole and atorvastatin study therapies at the time of their adverse events. Among these three patients, LFTs returned to normal after study drug was discontinued. Three other patients had modest elevations in LFT levels that led to elective premature study withdrawal (i.e., not dictated by the safety monitoring plan). The LFT levels in these three patients also returned to normal after study drug was discontinued. Four additional patients required close monitoring of LFTs following an observed LFT abnormality, per protocol, and

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had resolution of their LFT abnormalities while receiving study drug. A detailed analysis of the liver transaminase elevations in this study showed that there was no correlation between the dose of levoketoconazole and abnormal liver transaminases. A safety signal consistent with drug-induced QTc prolongation was also observed in one of the drug-drug interaction studies.

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Owing to the known risks of liver injury and QTc prolongation with ketoconazole and the observed safety signals in the Phase 2 program in type 2 diabetes, suspected liver injury and QTc prolongation (including related cardiac adverse events) were pre-defined as adverse events of special interest (AESIs) in the Phase 3 Cushing’s syndrome studies.

Recorlev Phase 3 Clinical Trials in Cushing’s syndrome

SONICS Phase 3 Clinical Trial

We enrolled 94 patients in our SONICS Phase 3 clinical trial in the United States, Canada, the European Union and the Middle East. This clinical trial was conducted pursuant to a U.S. Investigational New Drug for Recorlev for the treatment of endogenous Cushing’s syndrome that took effect in May 2013. The last patient visit occurred in November 2018.

Following a screening phase, SONICS had three distinct treatment phases. During the dose titration (DT) phase, patients started dosing at 150 mg twice daily (300 mg total daily dose) and titrated in 150 mg increments up to a maximum 600 mg twice daily (1,200 mg total daily dose) as needed and tolerated to control cortisol and improve patient signs and symptoms. Following the dose titration phase, once an individualized therapeutic dose had been reached, patients entered the maintenance phase during which the dose was to be regarded as fixed unless it needed to be changed for safety reasons, including loss of efficacy. At the end of the six-month maintenance phase, the UFC responder rate, which is the primary endpoint of the clinical trial, was determined. Patients who completed the maintenance phase were asked to enter an extended evaluation phase to provide additional safety and efficacy data. Throughout the entire clinical trial, various measurements for safety and efficacy were taken.

The primary endpoint of the clinical trial was the proportion of patients with UFC response to Recorlev, defined as a reduction in mean 24-hour UFC levels to levels that are equal to or less than the upper level of normal range following six months of treatment in the maintenance phase without a dose increase (during the maintenance phase).

Key secondary endpoints included the number of patients with at least a 50% decrease in UFC levels, changes in blood sugar, blood pressure, cholesterol and weight compared to baseline, effects on clinical signs and symptoms of Cushing’s syndrome, quality of life measures obtained from the Cushing’s syndrome quality of life questionnaire and the severity of depression obtained from the Beck’s Depression Inventory II.

The clinical trial was also designed to investigate the pharmacokinetics of Recorlev in patients with endogenous Cushing’s syndrome.

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Below is a diagram of the SONICS clinical trial design:

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Several elements of the SONICS clinical trial design were informed by the clinical development pathway of currently approved drug therapies in the United States and the European Union. Additionally, we incorporated advice from the CHMP and FDA into the design of the clinical trial. The FDA recommended use of a concurrent control group in SONICS. However, SONICS utilized an open-label, single-arm design because use of a placebo control in a long-term, parallel-arm monotherapy design was considered unethical or infeasible to enroll, depending on the specific country or clinical trial site under consideration. Studies lacking a concurrent control group are more likely to be subject to unanticipated variability in study results that can potentially lead to flawed conclusions because they do not allow for discrimination of patient outcomes. As a result, even if we achieved the clinical trial’s endpoints, the FDA or other regulatory authorities could view our study results as potentially biased. We have attempted to control for bias in our SONICS trial via the use of strict evidence of active disease at baseline based on objective measures, an objectively measured primary endpoint with repeated longitudinal assessments, and implementation of a strict data restriction plan that severely limited exposure to efficacy data at the Sponsor.

The primary objective of normalized mUFC without an increase in the therapeutic dose over the preceding six months was achieved among 30% of all enrolled patients at the final visit of the six-month maintenance phase. Statistical significance of the primary endpoint analyzed using the intent-to-treat population was achieved, having excluded an mUFC normalization rate at the six-month time point of 20% or lower (1-sided p = 0.0154; 2-sided p = 0.031.) Sensitivity analyses and secondary and exploratory analyses of mUFC response were all supportive of and suggested greater efficacy of levoketoconazole than the primary endpoint analysis, indicative of a conservative primary analysis method.

Evidence of clinical benefit from levoketoconazole was further demonstrated by improvements in several pre-defined, key secondary endpoints of cardiovascular risk (i.e., cardiometabolic comorbidities of CS) in the maintenance-completer study population including highly statistically significant (maintaining overall type 1 error at 5%) and clinically meaningful decreases from baseline in mean fasting glucose, hemoglobin A1C, total and low-density lipoprotein-cholesterol and body weight.

Safety and tolerability findings throughout the DT and maintenance phases indicate that levoketoconazole was generally well tolerated, with a discontinuation rate due to adverse events of 13% and no new safety signals observed relative to the prior experience with the drug in type 2 diabetes. Fourteen of 94 patients (15%) reported one or more serious adverse events, and in four patients a serious adverse event was deemed drug-related by investigators (one case of elevated liver function tests, two cases of prolonged QTc, and one case of adrenal insufficiency). One patient death not considered drug-related (colon cancer; preferred terms of adenocarcinoma of colon and metastases to liver) was reported during the maintenance phase.

Liver-related adverse events were considered adverse events of special interest (AESIs) in SONICS and are of particular interest in light of serious hepatotoxicity reported rarely among users of ketoconazole. Seven (7.4%) patients were reported as having an AESI related to the liver, and five of the seven discontinued study drug permanently at the time of the event; the other two resumed study drug after interruption, although one of the two later discontinued.

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Transaminases were measured routinely at least every other week during dose titration and at least monthly during the maintenance phase. At the baseline visit, 96% of patients enrolled had alanine aminotransferase (ALT) within the normal reference range. During treatment ALT did not exceed 20x ULN in any patient, and no Hy’s Law cases were reported. Three (3.2%) patients were recorded with a post-baseline ALT value greater than 5x ULN and an additional seven (7.4%) of patients had at least 1 ALT value greater than 3x ULN at any time after baseline. Most ALT elevations occurred during dose titration, and all elevations over 3x ULN occurred by Month 2 of the maintenance phase. The aspartate aminotransferase values measured in these cases moved in the same direction as ALT but were less elevated. No patient had a total bilirubin level >1.5x ULN at any time. There was no obvious dose relationship among the cases, and each case was fully reversible upon drug interruption/discontinuation without clinical sequelae. It is not yet known if such events are predictable within an individual, but routine monitoring effectively identified elevated transaminase cases when they were mild and usually asymptomatic.

ECGs with centrally over-read QTc were monitored routinely during the study at the same intervals as LFT monitoring. Five (5.3%) patients were reported as having a QT/cardiac-related AESI; in every case the patient was asymptomatic. There were no discontinuations due to QTc prolongation. No arrhythmias were reported. In each case of prolonged QTc, study drug was resumed after temporary interruption. A total of nine (10%) patients had at least one QTc value representing an increase of more than 60 milliseconds from baseline, and two (2.1%) patients had a QTc interval above the pre-defined mandatory drug-interruption threshold of 500 milliseconds. Routine ECG monitoring effectively identified patients with QTc prolongation without any clinical sequelae. Therefore, we believe QTc prolongation safety issues can be appropriately managed with product labeling.

Complete results from our SONICS trial through the end of the maintenance phase were subsequently published in a peer-reviewed journal. Fleseriu M. et al. Efficacy and safety of levoketoconazole in the treatment of endogenous Cushing’s syndrome (SONICS): a phase 3, multicentre, open-label, single-arm trial. Lancet Diabetes Endocrinology; published online Sep 18, 2019.

The top-line results of our Extended Evaluation Phase of our Phase 3 SONICS trial of Recorlev showed that Recorlev was generally well-tolerated during the extended evaluation phase and no new drug-related safety signals were observed:

Below is a summary of Recorlev extended evaluation phase efficacy results:

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LOGICS Phase 3 Clinical Trial

LOGICS is our second Phase 3 clinical trial of Recorlev for the treatment of endogenous Cushing's syndrome. The LOGICS trial is intended to confirm the long-term efficacy and safety data from the SONICS trial. LOGICS includes a double-blind, placebo-controlled, randomized-withdrawal phase of eight weeks duration following an open-label titration and maintenance phase of approximately 14 weeks. The addition of a concurrent control group in LOGICS is an attempt to address the FDA’s request for such a control group that was absent in our SONICS trial.

Following a screening phase, LOGICS has three distinct treatment phases for patients who did not participate in SONICS and two distinct phases for some of those who did participate in SONICS. The first phase, which is only intended for patients new to levoketoconazole or for those who require re-establishment of a therapeutic dose, is dose titration and maintenance. During the dose titration and maintenance phase, patients start at 150 mg twice daily dosing (300 mg total daily dose) and titrate in 150 mg increments up to a maximum 600 mg twice daily dosing (1,200 mg total daily dose) as needed and as tolerated to achieve and maintain normalization of mUFC for at least four weeks at their individualized therapeutic dose. The total duration of this phase is a minimum of approximately 14 weeks and up to approximately 19 weeks. Patients completing the SONICS trial who were currently receiving a stable therapeutic dose skip dose titration and maintenance and proceed directly to the second phase, where they are joined by those who progressed through the first phase. The second phase is randomized-withdrawal, during which patients are randomly assigned to either continue active treatment with levoketoconazole or be switched to a matching placebo using the same tablet number. The primary efficacy endpoint comes at the end of the randomized-withdrawal period, which lasts approximately eight weeks for each patient (and may end sooner if a “rescue” is needed). The primary endpoint is the proportion of patients with a loss of established UFC response in the placebo group compared with that proportion in the levoketoconazole group. The final phase of LOGICS is the restoration phase, during which all patients once again receive active therapy. In order to conceal the therapy in the randomized-withdrawal phase, it was necessary to blind the therapy during restoration using twice the number of tablets (one active and one placebo). Throughout the entire clinical trial, various measurements for safety and efficacy are taken.

Below is a diagram of the LOGICS clinical trial design:

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The Phase 3 LOGICS study accepted Cushing’s syndrome patients with baseline mean urinary free cortisol (mUFC) at least 1.5 times the upper limit of normal (ULN). Patients who had previously completed the Phase 3 SONICS study were also permitted to be considered for entry into the LOGICS study. Prior to the randomized-withdrawal phase, 79 study participants entered a single-arm, open-label titration and maintenance phase of approximately 14 to 19 weeks. Forty-four patients (including five who were randomized directly from SONICS) were entered into the 8-week randomized-withdrawal portion of the trial, with 22 patients randomized to the Recorlev arm and 22 patients to the placebo arm. Forty-three patients completed the randomized-withdrawal phase.

At the end of the randomized-withdrawal phase of the LOGICS study, 54.5% more patients who were withdrawn to placebo had a loss of mUFC response as compared with those who remained on Recorlev (95.5% versus 40.9%, respectively; p=0.0002). All 21 patients who lost response after being randomized to placebo received early rescue treatment within the 8-week randomized-withdrawal phase with a median time to early rescue of 22 days.

The secondary endpoint of normalization of mUFC at the end of the randomized-withdrawal phase was also highly statistically significant with 45.5% more patients treated with Recorlev maintaining mUFC normalization in the active arm than the placebo arm (50.0% versus 4.5%, respectively; p=0.0015).

With respect to additional key secondary endpoints, the mean change from the randomized-withdrawal baseline to the end of the randomized-withdrawal phase for both total and LDL-cholesterol were significantly different between the treatment groups (adjusted p=0.0004 and p=0.0056, respectively), indicating rapid reversibility of the Recorlev treatment benefits on cholesterol following the switch to placebo despite only a maximum of approximately 8 weeks to see results. Other secondary biomarker endpoints, such as those relating to glycemia, did not separate to a statistically significant extent during the maximum eight-week period of withdrawal to placebo.

In general, Recorlev was well tolerated, with 19% of the 79 patients initially dosed discontinuing during titration-maintenance due to adverse events.  None of the 44 randomized patients discontinued because of adverse events. The most common adverse events reported in both phases (titration-maintenance and randomized-withdrawal) among 80 patients who received Recorlev continuously were nausea (29%), hypokalemia (28%), headache (21%), hypertension (19%) and diarrhea (15%). During the randomized-withdrawal phase, the adverse events most commonly reported in at least 5% of patients, and with a higher frequency in the Recorlev group as compared with the placebo group were hypertension (n=3 vs 1), nausea (n=2 vs 1), and fatigue (n=2 vs 1).

Throughout both study phases among 79 Recorlev -treated patients with both baseline and post-baseline liver monitoring data, 3.8% of Recorlev -treated participants (3 patients) had at least one serum alanine aminotransferase (ALT) measurement greater than 5x ULN, and 11% (9 patients) had at least one measurement that was greater than 3x ULN. These frequencies are comparable to those observed during the SONICS trial. There were no cases of bilirubin greater than 1.5x ULN, no Hy’s Law, and all liver abnormalities greater than 3x ULN resolved without clinical sequelae (with medication cessation in some cases).

Adverse events of special interest in LOGICS, aside from those that were liver-related, were those relating to adrenal insufficiency reported for 10% (eight patients) and those related to QT interval prolongation. Of 80 Recorlev -treated participants across both phases, 2.5%, or two patients, experienced QT prolongation of more than 500 milliseconds, the threshold of clinical importance. These reported special interest adverse events were all resolved, usually after dose reduction or in some cases permanent study drug discontinuation, and there were no clinical sequelae following resolution. Similar observations were made in SONICS.

OPTICS Phase 3 Clinical Trial

In 2018, we initiated a long-term, open-label extension trial with Recorlev (“OPTICS”) to capture longer-term safety, tolerability and efficacy data from patients who complete either SONICS or LOGICS and who choose to continue therapy with Recorlev. OPTICS will continue to accrue data on each enrolled patient for a minimum of three years or until Recorlev has become available in their own country, whichever comes first. We may be required by the FDA and the EMA to collect additional safety data post-approval.

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Clinical Trials Summary

We believe that Recorlev has (1) demonstrated consistent and significant clinical benefit in two Phase 3 trials with unique and complimentary designs and (2) shown consistent improvement of objectively quantifiable biomarkers of endogenous Cushing’s syndrome comorbidities, such as blood glucose, blood lipids, blood pressure or weight, and improvement of other clinical signs and symptoms of endogenous Cushing’s syndrome. We believe that the combination of the SONICS and LOGICS trials provide substantial evidence of efficacy and safety of Recorlev in patients with endogenous Cushing’s syndrome. In total, over 166 unique patients with this condition have been treated with Recorlev in our SONICS and LOGICS trials, and some patients have been treated with Recorlev for more than four years.

Recorlev Regulatory Background

We have submitted for a marketing authorization for Recorlev in the United States and will evaluate filing potentially elsewhere. In the United States, an NDA, which is a prerequisite to marketing authorization, can be submitted under one of a number of approval paths defined in the Federal Food, Drug, and Cosmetic Act. Following consultations with the FDA, we determined that Recorlev will be considered a new active substance that will follow the 505(b)(2) approval pathway, which permits an NDA applicant to rely on data from studies that were not conducted by or for the applicant and for which the applicant has not obtained a right of reference, is the appropriate pathway for a Recorlev NDA. Because a 505(b)(2) NDA approval can rely in part on data already accepted by the FDA or otherwise publicly available, an abbreviated and reduced development program may be possible. For example, we intend to rely on published literature and safety information for ketoconazole in our NDA for Recorlev. A similar marketing authorization path is available in most of the rest of the world, and we anticipate that the studies supporting U.S. approval will likewise support approvals to market Recorlev elsewhere, including in the European Union. The FDA has acknowledged that no additional preclinical investigations will be required for Recorlev prior to an NDA filing. The EMA’s CHMP has requested a study of reproductive toxicity that may be completed prior to filing for marketing authorization in Europe, pending further discussions.

In March 2019, we conducted a Type C meeting with the Division of Metabolic and Endocrine Products (DMEP) of the FDA. The DMEP stated in its meeting minutes that the FDA generally requests that a sponsor conduct two adequate and well-controlled clinical studies for the proposed indication of a drug candidate under 21 CFR 314.126(b)(2). The DMEP also noted that the FDA recognizes situations when a single trial may be sufficient. The DMEP reiterated that the characteristics of an “adequate and well-controlled” investigation under 21 CFR 314.126 include the use of a control group (e.g., placebo concurrent control, dose-comparison concurrent control), randomization and evaluation of primary endpoints that directly measure clinical benefits, or supported by evidence of clinical benefit. For this reason, while the DMEP indicated that it would consider, as a review issue, the adequacy of a NDA submission with data from our SONICS trial as the sole Phase 3 evidence supporting the efficacy of Recorlev, the DMEP nonetheless recommended that we complete a second trial and include the results from that trial in addition to data from our SONICS trial in our NDA submission.

In June 2020, we conducted a pre-NDA meeting with the Division of General Endocrinology (DGE) of the FDA to review plans relating to our proposed NDA submission for Recorlev, with an anticipated submission date approximately six months following disclosure of topline results from the LOGICS study.  Based on feedback received from DGE during this meeting, we believe that the LOGICS and SONICS trial results together will provide a sufficient clinical-studies basis for a substantive review of an NDA and that it will be a review issue as to whether the data will be sufficient to support approval of the NDA. There can be no assurance that DGE will determine that the totality of data included in the NDA, including the results from our SONICS and LOGICS trials, will be sufficient to warrant approval of the NDA for Recorlev.

Our NDA submission for Recorlev included data from each of the SONICS and LOGICS trials. The DMEP stated in its meeting minutes that our clinical pharmacology program for Recorlev, as described to them, appears reasonable to support an NDA filing for Recorlev provided that the data generated are found to be suitable. We have requested new chemical entity (NCE) exclusivity with our NDA submission pursuant to section 505(u) of the Federal Food, Drug, and Cosmetic Act.

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Veldoreotide Modified-Release —a Novel Somatostatin Analogue

Overview

In June 2015, we acquired veldoreotide, a novel multi-receptor targeted SSA that has the potential to be a next-generation somatostatin analog to provide a new and differentiated treatment option for patients with conditions amenable to somatostatin receptor activation. We acquired veldoreotide as part of our strategy to build our rare endocrine franchise. At the time of acquisition, veldoreotide was in Phase 2 clinical development as a treatment for acromegaly in its original, immediate-release formulation. Acromegaly is a rare endocrine disorder that most commonly results from a benign tumor of the pituitary gland, leading to excess production of growth hormone and IGF-1. The treatment goal is the normalization of growth hormone and IGF-1, which is the main cause of the detrimental clinical signs and symptoms of acromegaly.

SSAs are peptides that are currently administered as deep subcutaneous or intramuscular injections, typically as long-acting formulations for monthly injections. They are the most commonly used drug therapy for the treatment of acromegaly and work by binding to specific subtypes of somatostatin receptors SSTs that are expressed by the tumor. Binding of SSAs to these SSTs leads to the beneficial inhibition of growth hormone secretion but can also result in the unwanted inhibition of secretion of other endocrine hormones such as insulin and glucagon in the pancreas. Like other current SSAs, veldoreotide is a peptide that we are developing for injection. In contrast to approved SSAs, veldoreotide activates a different subset of SSTs. Like the marketed SSAs, it binds and activates signaling via SST2 and SST5. However, in contrast to the approved SSAs, which primarily target one or the other of SST2 or SST5, veldoreotide binds and activates SST2 and SST5 approximately with equal potency. Veldoreotide also has a high affinity for SST4, a receptor believed to be important to modulating pain signals in the peripheral nervous system. Veldoreotide does not bind to SST3 or the mu-opiate receptor at pharmacological concentrations. In vitro data suggest that a higher proportion of human adenomas are a target for growth hormone inhibition by veldoreotide as compared to octreotide, which is referred to as a single receptor targeted SSA that binds and activates predominantly via SST2, potentially resulting in an increased responder rate. Nonclinical data indicate that postprandial insulin secretion and gallbladder motility are both less inhibited by veldoreotide as compared with octreotide.

Based on the differentiated activation pattern of veldoreotide upon binding to SST subtypes, we believe that veldoreotide may offer an improved efficacy and safety profile relative to existing drug therapies for acromegaly and other conditions that are modifiable through activation of somatostatin receptors. In the three clinical studies of immediate-release veldoreotide completed outside the United States in healthy volunteers veldoreotide was able to suppress stimulated growth hormone levels to a similar extent as octreotide, and, when compared with immediate-release subcutaneous octreotide, there was less blunting of insulin in response to a mixed meal or oral glucose load. In two studies of patients with acromegaly, veldoreotide caused a similar degree of suppression of elevated serum growth hormone as octreotide. Veldoreotide has been granted orphan drug designation for the treatment of acromegaly by the FDA and the EMA.

Immediate release veldoreotide would require three injections per day for therapeutic effect and therefore we believe it is not commercially feasible. We have formulated veldoreotide as a modified-release, long-acting product using PLGA microsphere technology. Preliminary nonclinical studies suggest that an injection volume suitable for subcutaneous administration may be feasible for once-weekly dosing in humans. Depending on the results of ongoing exploratory nonclinical studies, we may elect to pursue a development pathway for veldoreotide modified-release that may include acromegaly or may include therapeutic uses outside of acromegaly or endocrinology in general. These ongoing nonclinical studies will provide more information on the development path for veldoreotide in the future. Regardless of indication(s) to be pursued, further development will require preclinical safety (toxicology) studies as well as manufacturing scale-up before the newly formulated product can enter clinical testing. We anticipate that such preclinical studies, once begun, will take at least 18 months to complete.

Completed Clinical Trials

Five clinical trials of veldoreotide have been performed to date: three in healthy male volunteers and two in patients with acromegaly, all of which employed an immediate-release, short-acting formulation injected

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subcutaneously. At the time the clinical trials described below were conducted, veldoreotide was named DG3173. These trials were conducted by Aspireo Pharmaceuticals Ltd., other than DG3173-I-001, which was conducted by Develogen AG.

The Phase 1 clinical trials involved 122 healthy subjects and the Phase 2 clinical trial involved 28 patients with acromegaly. No serious adverse events were observed, and mostly mild adverse events typical for SSAs such as injection site reactions and gastrointestinal side effects were reported. There was no evidence that veldoreotide adversely affects the liver, kidneys or other organ systems, including the cardiovascular system. Data from the multiple ascending dose clinical trial in healthy subjects (Study I 002) showed inhibition of growth hormone comparable to octreotide, but no or less inhibition of insulin secretion and less effect on glucose levels. The single ascending dose trial in patients with acromegaly (Study II 01) and the continuous infusion study in patients with acromegaly (Study II 02) confirmed that veldoreotide also suppresses excessively produced growth hormone to a similar maximal extent as octreotide.

We believe the preliminary clinical findings from these trials corroborate the profile of veldoreotide observed in nonclinical studies, which suggest a potential ability to inhibit growth hormone secretion without detrimental effects on post-meal insulin or glucose metabolism. These preliminary findings, which suggests reduced propensity to inhibit postprandial insulin, would contrast favorably with the well-described insulin and glucose perturbations caused by octreotide, lanreotide and pasireotide, and we may conduct additional clinical trials to evaluate the clinical profile of veldoreotide and possibly its potential differentiation from existing SSAs. We believe veldoreotide potentially could confer therapeutic advantages relative to currently approved SSAs as a treatment for somatostatin-responsive conditions. The following table summarizes the completed clinical trials with immediate-release veldoreotide.

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Macrilen

In January of 2018, Strongbridge Ireland Limited, one of our wholly-owned subsidiaries, acquired the U.S. and Canadian rights to Macrilen (macimorelin), the first and only oral drug approved by the FDA for the diagnosis of patients with adult growth hormone deficiency. We launched Macrilen in the United States in July 2018.

In December 2018, we sold Strongbridge Ireland Ltd. to Novo for $145 million plus tiered royalties on net sales of Macrilen through 2027. Between January 1, 2019 and December 31, 2021, Novo will pay to us 12% of annual net sales of Macrilen in the United States. Between January 1, 2022 and December 31, 2027, Novo will pay to us (i) 4% of any portion of annual net sales in the United States up to $100 million and (ii) 8% of any portion of annual net sales in the United States greater than $100 million. The royalty payments are subject to certain conditions and reductions, including if Macrilen is no longer covered by a valid claim of a patent in the United States and Novo or its affiliates no longer hold exclusive marketing rights granted by the FDA. In connection with the sale, we entered into a services agreement with Novo pursuant to which Novo agreed to fund the costs of 23 of our field-based employees to provide full-time ongoing services to Novo, including the promotion of Macrilen in the United States, for a period of three years. In December 2019, we reached an agreement with Novo to terminate the services agreement. We received a $6 million payment in connection with such termination, and no longer provide services to Novo.

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Our Rare Neuromuscular Franchise

In December 2016, we acquired the U.S. marketing rights to Keveyis (dichlorphenamide) from Taro Pharmaceuticals North America, Inc., a subsidiary of Taro Pharmaceutical Industries Ltd. (“Taro”). Keveyis is the first and only therapy approved in the United States to treat hyperkalemic, hypokalemic and related variants of PPP, a group of rare hereditary disorders that cause episodes of muscle weakness or paralysis.

Overview of PPP and Keveyis

PPP is a rare, genetic, neuromuscular disorder related to a defect in muscle ion channels with multiple variants and subtypes. The disease is characterized by episodes of muscle weakness and paralysis. It often interferes with daily activities and, as patients get older, it can lead to permanent muscle weakness. PPP may be localized (“focal”) or more widespread (“generalized”), and it often goes underdiagnosed and/or undertreated. Types of periodic paralysis are differentiated by criteria including underlying genetic mutations and changes in blood potassium during an episode. The two most common forms of PPP are hypokalemic, when episodes can be induced by low blood levels of potassium, and hyperkalemic, when episodes are associated with elevated levels of blood potassium. We believe, based on our market research, that there are approximately 4,000 to 5,000 patients in the United States diagnosed with PPP.

Keveyis is an oral carbonic anhydrase inhibitor that was approved by the FDA in the United States in August 2015 to treat hyperkalemic, hypokalemic and related variants of PPP. The exact mechanism(s) through which oral carbonic anhydrase inhibitors, and Keveyis in particular, decrease the frequency and severity of periodic paralysis attacks is unknown. However, it is believed that their effects are mediated both locally (i.e., in muscle) and systemically. It is not known whether their effects are disease-modifying. Keveyis has received orphan drug exclusivity status in the United States through August 7, 2022.

Following FDA approval in August 2015, Keveyis was marketed by Taro. In May 2016, Taro announced the cessation of their commercial sales and related promotional activities for Keveyis. Taro supplied Keveyis to patients on a non-commercial basis through a single specialty pharmacy in the United States from May 2016 until our acquisition of the U.S. marketing rights to Keveyis in December 2016. We continued to supply Keveyis to patients on a non-commercial basis until launching Keveyis in April 2017. After acquiring the U.S. marketing rights for Keveyis, we established sales, marketing, market access and patient service capabilities.

Because a large percentage of the people who suffer from PPP remain undiagnosed or inadequately treated, we developed programs to educate the medical community and patients about this illness. In addition, we established a field-based force of medical science liaisons. We use a single, specialty pharmacy to provide reimbursement, clinical and distribution support for Keveyis and to develop cost-sharing and patient assistance programs to support qualified, commercially insured patients, federal- and state-insured patients, and uninsured or under-insured patients. We also donate money to independent charitable foundations dedicated to this cause. Our ultimate goal is to ensure that no PPP patient is denied access to Keveyis for financial reasons.

Clinical Development of Keveyis

The efficacy of KEVEYIS was evaluated in two clinical studies, Study 1 and Study 2.

Study 1

Study 1 was a 9-week, double blind, randomized, placebo-controlled, multi-center study. Study 1 consisted of two substudies: a substudy in patients with hypokalemic periodic paralysis (n=44), and a substudy in patients with hyperkalemic periodic paralysis (n=21). The primary efficacy endpoint in both substudies was the average number of self-reported attacks of muscle weakness per week over the final eight weeks of the trial. Withdrawal from the study for acute severe worsening (increase in attack frequency or severity) was also assessed as an endpoint.

In Study 1, the tested dose of Keveyis was 50 mg b.i.d. for treatment-naïve patients. Patients already receiving dichlorphenamide prior to the study continued on the same dose if randomized to Keveyis during the study. In patients

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taking acetazolamide prior to the study, the daily dose of Keveyis was set at 20% of the daily acetazolamide dose. Dose reduction for tolerability was permitted.

In the hypokalemic periodic paralysis substudy, median age of patients was 45 years and 73% of patients were male. Patients treated with Keveyis (n=24) had 2.2 fewer attacks per week than patients (n=20) treated with placebo (p=0.02). None of the patients randomized to Keveyis reached the endpoint of withdrawal from the study for acute worsening, versus five patients randomized to placebo. The mean dose of Keveyis at Week 9 was 94 mg/day.

In the hyperkalemic periodic paralysis substudy, median age of patients was 43 years and 43% of patients were male. During the double-blind treatment period, patients treated with Keveyis (n=12) had 3.9 fewer attacks per week than patients treated with placebo (n=9) (p=0.08). None of the patients randomized to Keveyis reached the endpoint of withdrawal from the study for acute worsening, versus two patients randomized to placebo. The mean dose of Keveyis at Week 9 was 82 mg/day.

Study 2

Study 2 was a 35-week, double blind, placebo-controlled, randomized, multi-center, two-period crossover study. Study 2 also consisted of two substudies: a substudy in patients with hypokalemic periodic paralysis (n=42), and a substudy in patients with hyperkalemic periodic paralysis (n=31), including patients with Paramyotonia Congenita (together termed potassium-sensitive periodic paralysis or PSPP). The primary endpoint in the hypokalemic periodic paralysis substudy was the incidence of acute intolerable worsening (based on attack frequency or severity) necessitating withdrawal. The primary endpoint in the hyperkalemic periodic paralysis substudy was the average number of self-reported attacks of muscle weakness per week. Dosing was determined similarly to Study 1.

The hypokalemic periodic paralysis substudy, included patients with a mean age of 38 years; 79% of patients were male. Acute intolerable worsening was observed in 2 patients on Keveyis versus. 11 patients on placebo (p=0.02). The mean dose of Keveyis at the end of the study was 96 mg/day.

The hyperkalemic periodic paralysis substudy, included patients with a mean age of 37 years: and 79% of patients were male. Patients treated had 2.3 fewer attacks per week on Keveyis than on placebo (p=0.006). The mean dose of Keveyis at the end of the study was 73 mg/day.

Commercialization Strategy

After acquiring the U.S. marketing rights for Keveyis in December 2016, we established sales, marketing, market access and patient services capabilities. We believe, based on our market research, that there are approximately 4,000 to 5,000 patients in the United States diagnosed with PPP and we believe that we can address the market by targeting physicians who are managing patients with PPP, including neuromuscular specialists, general neurologists and primary care physicians.

We plan to leverage our current commercial infrastructure where possible. As with Keveyis, we intend to independently commercialize our rare disease-focused product candidates in the United States, if approved. For product candidates approved outside of the United States we will evaluate the best approach to commercialization on a country by country basis—we may choose to independently commercialize but we could choose to partner, use a distributor, or sell the rights among other choices. We believe that we can address the market of our current late-stage product candidate by targeting endocrinologists that are focused on the diagnosis and treatment of rare pituitary disorders primarily stemming from benign tumors.

Our commercial strategy for our late-stage rare endocrine product candidate, if approved, will encompass promoting its unique benefits, as well as a concerted effort to raise awareness about the underlying diseases among the physician/patient community with the goal of increasing the rate of diagnosis when the symptoms may otherwise be overlooked. We believe the combination of our commercial efforts and our late-stage rare endocrine product candidate profile will facilitate our ability to successfully gain usage in our target markets.

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Manufacturing

We do not have internal manufacturing capabilities and intend to continue to rely on third parties to produce Keveyis and our product candidates.

We have a supply agreement with Taro to produce Keveyis. We are obligated to purchase annual minimum amounts of product totaling approximately $29 million over a six-year period from Taro. As of December 31, 2020, our remaining obligation was $19.0 million. The supply agreement may extend beyond the orphan exclusivity period unless terminated by either party pursuant to the terms of the agreement. If the supply agreement is terminated by Taro at the conclusion of the orphan exclusivity period, we have the right to manufacture the product on our own or have the product manufactured by a third party on our behalf.

The manufacturing, packaging and distribution of Recorlev drug product for clinical trials following Good Manufacturing Practices (“GMPs”), is currently outsourced under contracts to experienced contract manufacturers. We expect to enter into similar arrangements for veldoreotide.

Intellectual Property of our Products and Product Candidates

We actively seek to protect the intellectual property and proprietary technology that we believe is important to our business, including seeking, maintaining, enforcing and defending patent rights for our products, product candidates and methods of treatment, whether developed internally or licensed from third parties. Our success will depend on our ability to obtain and maintain patent and other protection (including exclusivity through orphan drug designation) for our products, product candidates and methods of treatment, preserve the confidentiality of any know-how and operate without infringing the valid and enforceable patents and proprietary rights of third parties.

Our policy is to seek to protect our proprietary position generally by filing patent applications initially at the USPTO. After this initial phase, patent applications claiming priority to the initial application are filed in various countries, including the United States, Europe and Canada. In each case, we determine the strategy and territories required after discussion with our patent counsel with the goal of obtaining relevant coverage in territories that are or may be commercially important to us and our product candidates. We will additionally rely on orphan drug designation exclusivity and patent term extensions when available. We also rely on trade secrets and know-how relating to our underlying product technologies. Prior to making any decision on filing any patent application, we consider with our patent counsel whether patent protection is the most sensible strategy for protecting the invention concerned or whether the invention should be maintained as confidential.

We own or license 52 granted patents, of which eight are U.S. issued patents. We also own or license 29 pending patent applications, of which 18 are U.S. patent applications.

We maintain trademark registrations and/or trademark applications for “Strongbridge Biopharma” and “Recorlev” in key geographies that include the United States, Australia, Brazil, China, Europe, Israel, India, Japan, Mexico, and Canada, among others. We also maintain trademark registrations and/or trademark applications for various additional potential trademarks for potential use if we determine not to utilize Recorlev as the branded pharmaceutical name for our levoketoconazole product candidate, once approved.

Recorlev

We own 47 issued patents related to our product candidate, Recorlev. Issued claims in these patents are directed to methods of treatment of various diseases or conditions associated with elevated cortisol levels or activity using Recorlev. The patents have been granted in major territories including the U.S., Europe, China and Japan and expire in 2026, 2027 and 2030. We have three pending U.S. patent applications and two Patent Cooperation Treaty (PCT) patent applications directed to methods of treating a disease or condition associated with elevated cortisol levels or activity, including Cushing’s syndrome, with Recorlev. One of the issued patents in the United States is directed to reducing C-reactive protein levels and systemic inflammation through administration of a once-daily dose of Recorlev that expires in

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2030. In addition to any patent exclusivity, we intend to rely on orphan drug designation exclusivity and New Chemical Entity (“NCE”) exclusivity for Recorlev.

Veldoreotide

We own two issued patents and one patent application in the U.S., and one patent in Russia related to our product candidate, veldoreotide.  One of the patents issued in the U.S. contains claims covering a modified-release formulation and a method of manufacturing the formulation.  This patent expires in 2037.  We have filed six patent applications that include substantially similar proposed claims in other countries including China, Japan, Canada and various countries in Europe.  In addition to any patent exclusivity, we intend to rely on orphan drug designation exclusivity for veldoreotide.

Keveyis

We acquired U.S. marketing rights to Keveyis in late 2016.  We are not aware of any issued patents related to Keveyis. We have filed 15 patent applications in the United States and four PCT patent applications related to Keveyis.  Although we intend to rely primarily on orphan drug designation exclusivity for Keveyis, we also expect to continue to prosecute such patent applications and explore additional life cycle management opportunities for Keveyis.

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Laws and Regulations Regarding Patent Terms

The term of individual patents depends upon the legal term of the patents in the countries in which they are obtained. In most countries in which we file, the patent term is 20 years from the earliest date of filing a non-provisional application. In the United States, a patent term may be shortened if a patent is terminally disclaimed over another patent or as a result of delays in a patent prosecution by the patentee. A patent’s term may be lengthened by a patent term adjustment, which compensates a patentee for administrative delays by the USPTO in granting a patent. The patent term of a European patent is 20 years from its effective filing date, which, unlike in the U.S., is not subject to patent term adjustments in the same way as U.S. patents.

The term of a patent that covers an FDA-approved drug or biologic may also be eligible for patent term extension, which permits patent term restoration as compensation for the patent term lost during the FDA regulatory review process. The Drug Price Competition and Patent Term Restoration Act of 1984 (the “Hatch-Waxman Act”) permits a patent term extension of up to five years beyond the expiration of the patent. The length of the patent term extension is related to the length of time the drug or biologic is under regulatory review. Patent extensions cannot extend the remaining term of a patent beyond a total of 14 years from the date of product approval and only one patent applicable to an approved drug may be extended. Similar provisions are available in Europe and other jurisdictions to extend the term of a patent that covers an approved drug, for example Supplementary Protection Certificates. In the future, if and when our products receive FDA approval, we expect to apply for patent term extensions on patents covering those products. We anticipate that some of our issued patents may be eligible for patent term extensions, but such extensions may not be available and, therefore, any commercial monopoly may be restricted.

Competition

The biotechnology and pharmaceutical industries are characterized by rapidly advancing technologies, intense competition and a strong emphasis on proprietary products. While we believe that our scientific knowledge, technology, and development experience provide us with competitive advantages, we face potential competition from many different sources, including major pharmaceutical, specialty pharmaceutical and biotechnology companies, academic institutions, governmental agencies and public and private research institutions. Any product candidates that we successfully develop and commercialize will compete with existing products and new products that may become available in the future. Many of our competitors, alone or with their strategic partners, have greater experience than we do in conducting preclinical studies and clinical trials, and obtaining FDA, EMA and other regulatory approvals, and have substantially greater financial, technical and other resources than we do, such as larger research and development, clinical, marketing and manufacturing organizations. As a result, these companies may obtain regulatory approval for competing products more

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rapidly than we are able and may be more effective in selling and marketing their products. Companies that complete clinical trials, obtain required regulatory authority approvals and commence commercial sale of their drugs before their competitors may achieve a significant competitive advantage, and our commercial opportunity could be reduced or eliminated if competitors develop and commercialize products that are safer, more effective, have fewer or less severe side effects, are more convenient or are less expensive than any products that we may develop. Drugs resulting from our research and development efforts or from our joint efforts with collaboration partners therefore may not be commercially competitive with our competitors’ existing products or products under development.

We are aware of several companies focused on developing or marketing therapies for rare neuromuscular and endocrine disorders. For our product candidates, the main competitors include:

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Government Regulation

Product Approval Process in the United States

The safety, clinical testing, manufacturing, quality, labeling, storage, distribution, record keeping, advertising, promotion, import, export and marketing, among other things, of our product candidates are subject to extensive regulation by governmental authorities in the United States and other countries. The FDA under the Federal Food, Drug, and Cosmetic Act regulates pharmaceutical products in the United States. The steps required before a drug may be approved for marketing in the United States generally include:

The testing and approval process requires substantial time, effort, and financial resources, and the receipt and timing of any approval is uncertain.

Preclinical studies include laboratory evaluations of the product candidate, as well as animal studies to assess the potential safety and efficacy of the product candidate. The results of the preclinical studies, together with manufacturing information, analytical data and a proposed clinical trial protocol, are submitted to the FDA as part of the IND, which must become effective before clinical trials may be commenced. The IND will become effective automatically 30 days after receipt by the FDA, unless the FDA raises concerns or questions about the conduct of the clinical trials as outlined in the IND prior to that time and places the IND on clinical hold. In this case, the IND sponsor and the FDA must resolve any outstanding concerns before clinical trials can proceed. A clinical hold may occur at any time during the life of an IND, due to safety concerns or non-compliance, and may affect one or more specific studies or all studies conducted under the IND.

Clinical trials involve the administration of the product candidates to healthy volunteers or patients with the disease to be treated under the supervision of a qualified principal investigator. Clinical trials are conducted under protocols detailing, among other things, the objectives of the clinical trial, the parameters to be used in monitoring safety, and the efficacy criteria to be evaluated. A protocol for each clinical trial and any subsequent protocol amendments must be submitted to the FDA as part of the IND. Further, each clinical trial must be reviewed and approved by an

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independent institutional review board (“IRB”), either centrally or individually at each institution at which the clinical trial will be conducted. The IRB will consider, among other things, ethical factors, the safety of human subjects and the possible liability of the institution. Progress reports detailing the status of the clinical trials must be submitted to the FDA annually. Sponsors must also report to the FDA serious and unexpected adverse reactions, any clinically important increase in the rate of a serious suspected adverse reaction over that listed in the protocol or investigation brochure, or any findings from other studies or animal or in vitro testing that suggest a significant risk in humans exposed to the drug. There are also requirements governing the reporting of ongoing clinical trials and clinical trial results to public registries.

Clinical trials are typically conducted in three sequential phases prior to approval, but the phases may overlap. These phases generally include the following:

Phase 4 clinical trials are conducted after approval to gain additional experience from the treatment of patients in the intended therapeutic indication and to document a clinical benefit in the case of drugs approved under accelerated approval regulations, or when otherwise requested by the FDA in the form of post-market requirements or commitments. Failure to promptly conduct any required Phase 4 clinical trials could result in withdrawal of approval.

Clinical trials are inherently uncertain, and any phase may not be successfully completed. A clinical trial may be suspended or terminated by the FDA, IRB or sponsor at any time on various grounds, including a finding that the subjects or patients are being exposed to an unacceptable health risk. Additionally, some clinical trials are overseen by an independent group of qualified experts organized by the clinical trial sponsor, known as a data safety monitoring board or committee. This group provides ongoing oversight and safety reviews to determine whether or not a clinical trial may move forward at designated checkpoints based on access to certain data from the clinical trial. We may also suspend or terminate a clinical trial based on evolving business objectives and/or competitive climate.

Sponsors have the opportunity to meet with the FDA at certain points during the development of a new drug to share information about the data gathered to date and for the FDA to provide advice on the next phase of development. These meetings may be held prior to the submission of an IND, at the end of Phase 2 and/or before an NDA is submitted. Meetings may be requested at other times as well.

The results of preclinical studies and clinical trials, including negative or ambiguous results as well as positive findings, together with detailed information on the manufacture, composition and quality of the product, proposed labeling and other relevant information are submitted to the FDA in the form of an NDA requesting approval to market the product. The NDA must be accompanied by a significant user fee payment. The FDA has substantial discretion in the approval process and may refuse to accept any application, for example if the NDA is not sufficiently complete, or decide that the data is insufficient for approval and require additional preclinical, clinical or other studies.

In addition, under the Pediatric Research Equity Act (“PREA”), an NDA or supplement to an NDA must contain data to assess the safety and effectiveness of the drug for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each pediatric subpopulation for which the product is safe and effective. The FDA may grant deferrals for submission of data or full or partial waivers. Unless otherwise required by regulation, PREA does not apply to any drug for an indication for which orphan drug designation has been granted.

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However, if only one indication for a product has orphan drug designation, a pediatric assessment may still be required for any applications to market that same product for the non-orphan indication(s).

Once the NDA submission has been submitted, the FDA has 60 days after submission of the NDA to conduct an initial review to determine whether it is sufficient to accept for filing. NDAs receive either a standard or priority review. Under the Prescription Drug User Fee Act, the FDA sets a goal date by which it plans to complete its review. For a standard review, this is typically 10 months from the date of submission of the NDA application. The review process is often extended by FDA requests for additional information or clarification. Before approving an NDA, the FDA will inspect the facilities at which the product is manufactured and will not approve the product unless the manufacturing facility complies with cGMPs and may also inspect clinical trial sites for integrity of data supporting safety and efficacy. The FDA may also convene an advisory committee of external experts to provide input on certain review issues relating to risk, benefit and interpretation of clinical trial data. The FDA is not bound by the recommendations of an advisory committee, but generally follows such recommendations in making its decisions. The FDA may delay approval of an NDA if applicable regulatory criteria are not satisfied and/or the FDA requires additional testing or information. The FDA may require post-marketing testing and surveillance to monitor safety or efficacy of a product.

After the FDA evaluates the NDA and conducts inspections of manufacturing facilities where the drug product and/or its API will be produced, it may issue an approval letter or a Complete Response Letter. An approval letter authorizes commercial marketing of the drug with specific prescribing information for specific indications. A Complete Response Letter generally outlines the deficiencies in the NDA submission and may require substantial additional clinical testing, such as an additional pivotal Phase 3 clinical trial(s), clinical data, and/or other significant, expensive and time-consuming requirements related to clinical trials, preclinical studies or manufacturing. Even if such additional information is submitted, the FDA may ultimately decide that the NDA does not satisfy the criteria for approval.

The FDA may approve the NDA with a Risk Evaluation and Mitigation Strategy (“REMS”), plan to mitigate risks, which could include medication guides, physician communication plans, or elements to assure safe use, such as restricted distribution methods, patient registries and other risk minimization tools. The FDA also may condition approval on, among other things, changes to proposed labeling, development of adequate controls and specifications, or a commitment to conduct one or more post-market studies or clinical trials. Such post-market testing may include Phase 4 clinical trials and surveillance to further assess and monitor the product’s safety and effectiveness after commercialization.

Orphan Drug Designation

Under the Orphan Drug Act of 1983, the FDA may grant orphan drug designation to a drug or biological product intended to treat an orphan disease or condition, which is a disease or condition that affects fewer than 200,000 individuals in the United States, or if it affects more than 200,000 individuals in the United States, there is no reasonable expectation that the cost of developing and making a drug product available in the United States for this type of disease or condition will be recovered from sales of the product. Orphan product designation must be requested before submitting an NDA. After the FDA grants orphan product designation, the identity of the therapeutic agent and its potential orphan use are disclosed publicly by the FDA. Orphan product designation does not convey any advantage in or shorten the duration of the regulatory review and approval process.

If a product that has orphan drug designation subsequently receives the first FDA approval for the disease or condition for which it has such designation, the product is entitled to orphan product exclusivity, which means that the FDA may not approve any other applications to market the same drug or biological product for the same indication for seven years, except in limited circumstances, such as demonstrating clinical superiority to the product with orphan exclusivity. The designation of such drug also entitles a party to financial incentives, such as opportunities for grant funding towards clinical trial costs, tax advantages and user-fee waivers. Competitors, however, may receive approval of different products for the indication for which the orphan product has exclusivity or obtain approval for the same product but for a different indication for which the orphan product has exclusivity. Orphan product exclusivity also could block the approval of one of our products for seven years if a competitor obtains approval of the same drug or biological product as defined by the FDA or if our product candidate is determined to be contained within the competitor’s product for the same indication or disease. If a drug product designated as an orphan product receives regulatory approval for an

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indication broader than that for which it is designated, it may not be entitled to orphan product exclusivity. Orphan drug status in the European Union has similar but not identical benefits in that jurisdiction.

New Chemical Entity Exclusivity for Single Enantiomer Drugs

Under the Federal Food, Drug, and Cosmetic Act, the FDA will award five years of NCE exclusivity to a drug with an active ingredient that contains an active moiety not contained in a previously approved drug. The FDA does not generally award NCE exclusivity to a drug product that is based on a single enantiomer of a racemic mixture if the FDA has previously approved a racemic drug containing the enantiomer, because the FDA considers the enantiomer to have been approved as part of the previous approval of the racemic mixture. However, section 505(u) of the Federal Food, Drug, and Cosmetic Act allows an applicant to elect to obtain NCE exclusivity for a single enantiomer drug contained in a previously approved racemic mixture. To be eligible for NCE exclusivity under 505(u), the single enantiomer drug must not have been previously approved except in the approved racemic drug application. In addition, the application for the single enantiomer drug must meet the following requirements: the application must include full reports of new clinical investigations necessary for approval of the drug that were conducted or sponsored by the applicant; the application cannot rely on any clinical investigations that are part of the application for the approved racemic drug; the application must not be submitted for approval of a condition of use in a therapeutic category in which the approved racemic drug has been approved or for which any other enantiomer of the racemic drug has been approved; and FDA shall not approve the single enantiomer drug for any condition of use in the therapeutic category in which the racemic drug has been approved until the date that is 10 years after the date of approval of the single enantiomer drug, among other requirements.

Post-Approval Requirements

Drugs manufactured or distributed pursuant to FDA approvals are subject to pervasive and continuing regulation by the FDA, including, among other things, requirements relating to recordkeeping, periodic reporting, product distribution, advertising and promotion, and reporting of adverse experiences with the product. After approval, most changes to the approved product, such as adding new indications or other labeling claims, are subject to prior FDA review and approval and may require additional clinical trials and NDA submissions. There also are continuing, annual user fee requirements for any marketed products and the establishments at which such products are manufactured, as well as new application fees for supplemental applications with clinical data.

In addition, drug manufacturers and other entities involved in the manufacture and distribution of approved drugs are required to register their establishments with the FDA and state agencies and are subject to periodic unannounced inspections by the FDA and these state agencies for compliance with cGMP requirements. Changes to the manufacturing process are strictly regulated and often require prior FDA approval before being implemented. FDA regulations also require investigation and correction of any deviations from cGMP and impose reporting and documentation requirements upon the sponsor and any third-party manufacturers that the sponsor may decide to use. Accordingly, manufacturers must continue to expend time, money, and effort in the area of production and quality control to maintain cGMP compliance.

Once an approval is granted, the FDA may withdraw the approval if compliance with regulatory requirements and standards is not maintained, or if problems occur after the product reaches the market. Later discovery of previously unknown problems with a product, including adverse events of unanticipated severity or frequency, with manufacturing processes, or failure to comply with regulatory requirements, may result in revisions to the approved labeling to add new safety information, imposition of post-market studies or clinical trials to assess new safety risks, or imposition of distribution or other restrictions under a REMS program. Other potential consequences include, but are not limited to:

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The FDA strictly regulates marketing, labeling, advertising and promotion of products that are placed on the market. Drugs may be promoted only for the approved indications and in accordance with the provisions of the approved label. The FDA and other agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses, and a company that is found to have improperly promoted off-label uses may be subject to significant liability.

The federal Drug Supply Chain Security Act imposes obligations on manufacturers of pharmaceutical products related to product tracking and tracing. This includes providing certain information regarding the drug product to individuals and entities to which product ownership is transferred, label drug product with a product identifier, and keep certain records regarding the drug product. Manufacturers must also comply with detailed drug product investigation, quarantine, disposition, and notification responsibilities related to counterfeit, diverted, stolen, and intentionally adulterated products, as well as products that are the subject of fraudulent transactions or which are otherwise unfit for distribution such that they would be reasonably likely to result in serious health consequences or death.

Foreign Regulation

In order to market any product outside of the United States, we would need to comply with numerous and varying regulatory requirements of other countries and jurisdictions regarding quality, safety and efficacy and governing, among other things, clinical trials, marketing authorization, commercial sales and distribution of our products. Whether or not we obtain FDA approval for a product, we would need to obtain the necessary approvals by the comparable foreign regulatory authorities before we can commence clinical trials or marketing of the product in foreign countries and jurisdictions. Although many of the issues discussed above with respect to the United States apply similarly in the context of the European Union, the approval process varies between countries and jurisdictions and can involve additional product testing and additional administrative review periods. The time required to obtain approval in other countries and jurisdictions might differ from and be longer than that required to obtain FDA approval. Regulatory approval in one country or jurisdiction does not ensure regulatory approval in another, but a failure or delay in obtaining regulatory approval in one country or jurisdiction may negatively impact the regulatory process in others.

Other Healthcare Laws

In addition to FDA restrictions on the marketing of pharmaceutical products, federal and state healthcare laws restrict certain business practices in the biopharmaceutical industry. These laws include, but are not limited to, anti-kickback, false claims, data privacy and security, and transparency statutes and regulations.

The federal Anti-Kickback Statute prohibits, among other things, knowingly and willfully offering, paying, soliciting or receiving any remuneration, directly or indirectly, overtly or covertly, in cash or in kind, to induce, or in return for, purchasing, leasing, arranging for, ordering or recommending any good, facility, item or service for which payment is made, in whole or in part, under Medicare, Medicaid or any other federal healthcare programs. The term “remuneration” has been broadly interpreted to include anything of value, including for example, gifts, discounts, the furnishing of supplies or equipment, credit arrangements, payments of cash, waivers of payment, ownership interests and providing anything at less than its fair market value. The federal Anti-Kickback Statute has been interpreted to apply to arrangements between pharmaceutical manufacturers on the one hand, and prescribers, purchasers and formulary managers on the other. Although there are a number of statutory exceptions and regulatory safe harbors protecting certain common activities from prosecution, the exceptions and safe harbors are drawn narrowly, and our future practices may not in all cases meet all of the criteria for a statutory exception or safe harbor protection. Practices that involve remuneration that may be alleged to be intended to induce prescribing, purchases or recommendations may be subject to scrutiny if they do not qualify for an exception or safe harbor. Failure to meet all of the requirements of a particular applicable regulatory safe harbor does not make the conduct per se illegal under the federal Anti-Kickback Statute.

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Instead, the legality of the arrangement will be evaluated on a case-by-case basis based on a cumulative review of all of its facts and circumstances. Several courts have interpreted the statute’s intent requirement to mean that if any one purpose of an arrangement involving remuneration is to induce referrals of federal healthcare program covered business, the statute has been violated. Additionally, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act (collectively, the “PPACA”), amended the intent requirement under the Anti-Kickback Statute and criminal healthcare fraud statutes (discussed below) such that a person or entity no longer needs to have actual knowledge of the statute or the specific intent to violate it in order to have committed a violation. In addition, PPACA provides that the government may assert that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the civil False Claims Act (discussed below). Due to the breadth of these federal and state anti-kickback laws, and the potential for additional legal or regulatory change in this area, it is possible that our current and future sales and marketing practices and/or our future relationships with physicians might be challenged under these laws, which could cause harm to us.

The civil monetary penalties statute imposes penalties against any person or entity who, among other things, is determined to have presented or caused to be presented a claim to a federal health program that the person knows or should know is for an item or service that was not provided as claimed or is false or fraudulent.

The federal false claims laws prohibit, among other things, any person or entity from knowingly presenting, or causing to be presented, a false or fraudulent claim for payment or approval to the federal government or knowingly making, using or causing to be made or used a false record or statement material to a false or fraudulent claim to the federal government. As a result of a modification made by the Fraud Enforcement and Recovery Act of 2009, a claim includes “any request or demand” for money or property presented to the U.S. government. Recently, several pharmaceutical and other healthcare companies have been prosecuted under these laws for, among other things, allegedly providing free product to customers with the expectation that the customers would bill federal programs for the product. Other companies have been prosecuted for causing false claims to be submitted because of the companies’ marketing of the product for unapproved, and thus non-covered, uses.

The Health Insurance Portability and Accountability Act of 1996 (“HIPAA”), created new federal criminal statutes that prohibit knowingly and willfully executing, or attempting to execute, a scheme to defraud or obtain, by means of false or fraudulent pretenses, representations, or promises, any of the money or property owned by, or under the custody or control of, any healthcare benefit program, including private third-party payors, and knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement in connection with the delivery of, or payment for, healthcare benefits, items or services.

In addition, we may be subject to data privacy and security regulation by both the federal government and the states in which we conduct our business. HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act (“HITECH”), and its implementing regulations, imposes certain requirements relating to the privacy, security and transmission of individually identifiable health information. Among other things, HITECH makes HIPAA’s security standards directly applicable to business associates—independent contractors or agents of covered entities that receive or obtain protected health information in connection with providing a service on behalf of a covered entity. HITECH also created four new tiers of civil monetary penalties, and newly empowered state attorneys general with the authority to enforce HIPAA. In January 2013, the Office for Civil Rights of the U.S. Department of Health and Human Services issued the Final Omnibus Rule under HIPAA pursuant to HITECH that makes significant changes to the privacy, security, and breach notification requirements and penalties. The Final Omnibus Rule, which generally took effect in September 2013, enhances certain privacy and security protections, and strengthens the government’s ability to enforce HIPAA. The Final Omnibus Rule also enhanced requirements for both covered entities and business associates regarding notification of breaches of unsecured protected health information. 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. These state laws may not have the same effect and often are not preempted by HIPAA, thus complicating compliance efforts. Additionally, PPACA also included the federal Physician Payments Sunshine Act, which requires certain manufacturers of drugs, devices, biologicals and medical supplies for which payment is available under Medicare, Medicaid or the Children’s Health Insurance Program (with certain exceptions) to report annually information related to certain payments or other transfers of value made or distributed to physicians and teaching hospitals, or to entities or individuals at the request of, or designated on behalf of, the physicians and teaching hospitals and to report annually

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certain ownership and investment interests held by physicians and their immediate family members. Failure to comply with the reporting requirements could subject applicable manufacturers and others to substantial civil money penalties.

Also, many states have similar healthcare statutes or regulations that apply to items and services reimbursed under Medicaid and other state programs, or, in several states, apply regardless of the payor. Certain states require pharmaceutical companies to implement a comprehensive compliance program that includes a limit or outright ban on expenditures for, or payments to, individual medical or health professionals and/or require pharmaceutical companies to track and report gifts and other payments made to physicians and other healthcare providers.

Because we commercialize products that are reimbursed under federal and other governmental healthcare programs, we have developed a comprehensive compliance program that establishes internal controls to facilitate adherence to the rules and healthcare program requirements. Although compliance programs and adherence thereto may mitigate the risk of violation of and subsequent investigation and prosecution for violations of the above laws, the risks cannot be entirely eliminated. If our operations are found to be in violation of any of the health care laws or regulations described above or any other laws that apply to us, we may be subject to penalties, including potentially significant criminal, civil and/or administrative penalties, damages, fines, disgorgement, individual imprisonment, exclusion of products from reimbursement under government programs, contractual damages, reputational harm, administrative burdens, diminished profits and future earnings and/or the curtailment or restructuring of our operations, any of which could adversely affect our ability to operate our business and our results of operations. To the extent that any of our products are sold in a foreign country, we are subject to similar foreign laws and regulations, which may include, for instance, applicable post-marketing requirements, including safety surveillance, fraud and abuse laws, and implementation of corporate compliance programs and reporting of payments or transfers of value to healthcare professionals.

Pharmaceutical Coverage, Pricing and Reimbursement

In both domestic and foreign markets, our sales depend in part on the availability of coverage and adequate reimbursement from third-party payors. Third-party payors include government authorities, managed care providers, private health insurers and other organizations. Patients who are prescribed treatments for their conditions and providers performing the prescribed services generally rely on third-party payors to reimburse all or part of the associated healthcare costs. Patients are unlikely to use our commercial products unless coverage is provided, and reimbursement is adequate to cover a significant portion of the cost of the products. Sales of these products therefore depend substantially, both domestically and abroad, on the extent to which the costs of these products are paid by third-party payors. These third-party payors are increasingly focused on containing healthcare costs by challenging the price and examining the cost-effectiveness of medical products and services.

In addition, significant uncertainty exists as to the coverage and reimbursement status of newly approved healthcare product candidates. The market for our product candidates for which we may receive regulatory approval will depend significantly on access to third-party payors’ drug formularies or lists of medications for which third-party payors provide coverage and reimbursement. The industry competition to be included in such formularies often leads to downward pricing pressures on pharmaceutical companies. Also, third-party payors may refuse to include a particular branded drug in their formularies or otherwise restrict patient access to a branded drug when a less costly generic equivalent or another alternative is available. Furthermore, third-party payor reimbursement to providers for our product candidates may be subject to a bundled payment that also includes the procedure administering our products. To the extent there is no separate payment for our product candidates, there may be further uncertainty as to the adequacy of reimbursement amounts. Because each third-party payor individually approves coverage and reimbursement levels, obtaining coverage and adequate reimbursement is a time consuming, costly and sometimes unpredictable process. We may be required to provide scientific and clinical support for the use of any product to each third-party payor separately with no assurance that approval would be obtained, and we may need to conduct expensive pharmacoeconomic studies in order to demonstrate the cost-effectiveness and/or medical necessity of our products. This process could delay the market acceptance of any product and could have a negative effect on our future revenues and operating results. We cannot be certain that our product candidates will be considered cost-effective or medically necessary. Because coverage and reimbursement determinations are made on a payor-by-payor basis, obtaining acceptable coverage and reimbursement from one payor does not guarantee the Company will obtain similar acceptable coverage or reimbursement from another

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payor. A payor’s decision to provide coverage for a product does not imply that an adequate reimbursement rate will be approved. If we are unable to obtain coverage of, and adequate reimbursement and payment levels for, our product candidates from third-party payors, physicians may limit how much or under what circumstances they will prescribe or administer them, and patients may decline to purchase them. This in turn could affect our ability to successfully commercialize our products and impact our profitability, results of operations, financial condition and future success.

Furthermore, in many foreign countries, particularly the countries of the European Union, the pricing of prescription drugs is subject to government control. In some non-U.S. jurisdictions, the proposed pricing for a drug must be approved before it may be lawfully marketed. The requirements governing drug pricing vary widely from country to country. For example, the European Union provides options for its member states 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. A member state may approve a specific price for the medicinal product, or it may instead adopt a system of direct or indirect controls on the profitability of the company placing the medicinal product on the market. We may face competition for our product candidates from lower-priced products in foreign countries that have placed price controls on pharmaceutical products. In addition, there may be importation of foreign products that compete with our own products, which could negatively impact our profitability.

Healthcare Reform

In the United States and foreign jurisdictions, there have been, and we expect there will continue to be, a number of legislative and regulatory changes to the healthcare system that could affect our current and future business and operations.

In particular, there have been and continue to be a number of initiatives at the U.S. federal and state level that seek to reduce healthcare costs and pharmaceutical costs. Initiatives to reduce the federal deficit and to reform healthcare delivery are increasing cost-containment efforts. We anticipate that Congress, state legislatures and the private sector will continue to review and assess alternative controls on healthcare spending through limitations on the growth of private health insurance premiums and Medicare and Medicaid spending, the creation of large insurance purchasing groups, price controls on pharmaceuticals and other fundamental changes to the healthcare delivery system. Any proposed or actual changes could limit or eliminate our spending on development projects and affect our ultimate profitability.

In March 2010, PPACA was signed into law. PPACA has substantially changed the way healthcare is financed by both governmental and private insurers. PPACA, among other things: established an annual, nondeductible fee on any entity that manufactures or imports certain branded prescription drugs and biologic agents, apportioned among these entities according to their market share in certain government healthcare programs; revised the methodology by which rebates owed by manufacturers for covered outpatient drugs under the Medicaid Drug Rebate Program are calculated; increased the statutory minimum Medicaid rebates owed by most manufacturers under the Medicaid Drug Rebate Program; addressed a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted, or injected; extended the Medicaid Drug Rebate Program to prescriptions of individuals enrolled in Medicaid managed care organizations; required manufacturers to offer 50% point-of-sale discounts on negotiated prices of applicable brand drugs to eligible beneficiaries during their coverage gap period, as a condition for the manufacturer’s outpatient drugs to be covered under Medicare Part D; and implemented payment system reforms including a national pilot program on payment bundling to encourage hospitals, physicians and other providers to improve the coordination, quality and efficiency of certain healthcare services through bundled models.

For years the U.S. Congress has been assessing new legislation designed to repeal and replace core sections of PPACA. The Trump Administration took a number of executive actions to undermine or delay implementation of the PPACA. For example, in January 2017, former President Trump signed an Executive Order directing applicable federal agencies to waive, defer, grant exemptions from, or delay the implementation of any provision of the PPACA that would impose a fiscal or regulatory burden on states, individuals, healthcare providers, health insurers, or manufacturers of pharmaceuticals or medical devices. Former President Trump also signed two Executive Orders and other directives designed to delay the implementation of certain provisions of PPACA or otherwise circumvent some of the requirements

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for health insurance mandated by PPACA. On October 13, 2017, former President Trump signed an Executive Order terminating the cost sharing subsidies that reimburse insurers under PPACA. Several state Attorneys Generals filed suit to stop the administration from terminating the subsidies, but their request for a restraining order was denied by a federal judge in California on October 25, 2017. Further, on June 14, 2018, the U.S. Court of Appeals for the Federal Circuit ruled that the federal government was not required to pay more than $12.0 billion in PPACA risk corridor payments to third-party payors. This decision was appealed to the U.S. Supreme Court, which on April 27, 2020, reversed the Federal Circuit’s judgment and held the federal government has an obligation to pay these risk corridor payments under the relevant formula. It is not clear what effect this result will have on our business.

Congress has also considered legislation that would repeal, or repeal and replace, all or part of PPACA. While Congress has not passed comprehensive repeal legislation, two bills affecting the implementation of certain taxes under PPACA have been signed into law. On December 22, 2017, for instance, former President Trump signed into law the Tax Cuts and Jobs Act of 2017 (the “Tax Act”), which reduced to zero the tax for violating PPACA’s “individual mandate” to purchase health insurance. That legislative action is expected to cause millions fewer Americans to be insured and premiums in insurance markets may rise. Further, on December 14, 2018, a U.S. District Judge in the Northern District of Texas ruled that without the tax, the individual mandate was unconstitutional and that all other provisions of PPACA should be overturned because they were not severable from the individual mandate. On December 18, 2019, the U.S. Court of Appeals for the Fifth Circuit affirmed the district court’s finding that the individual mandate was unconstitutional. However, instead of deciding whether the rest of PPACA must be struck down, the Fifth Circuit sent the case back to the district court for additional analysis. On March 2, 2020, the U.S. Supreme Court agreed to review the case and heard oral arguments on November 10, 2020. We are unable to predict the ultimate outcome of the lawsuit but note its potential impact on PPACA moving forward.

In addition, CMS proposed regulations that would give states greater flexibility in setting benchmarks for insurers in the individual and small group marketplaces, which may have the effect of relaxing the essential health benefits required under PPACA for plans sold through such marketplaces. The Bipartisan Budget Act of 2018, or the BBA, among other things, amends PPACA, effective January 1, 2019, to close the coverage gap in most Medicare drug plans, commonly referred to as the “donut hole.” In July 2018, the CMS published a final rule permitting further collections and payments to and from certain PPACA qualified health plans and health insurance issuers under PPACA risk adjustment program in response to the outcome of federal district court litigation regarding the method CMS uses to determine this risk adjustment. Moreover, CMS issued a final rule in 2018 that will give states greater flexibility, starting in 2020, in setting benchmarks for insurers in the individual and small group marketplaces, which may have the effect of relaxing the essential health benefits required under PPACA for plans sold through such marketplaces.

Further, there has been heightened governmental scrutiny recently over the manner in which drug manufacturers set prices for their marketed products, which have resulted in several Congressional inquiries and proposed and enacted federal and state legislation and regulations designed to, among other things, bring more transparency to product pricing, reduce the cost of prescription drugs under Medicare, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for drug products. At the federal level, for example, the Trump Administration issued an interim final rule known as the “Most Favored Nation Model” on November 20, 2020, that would have aligned payment for certain Medicare Part B drugs with international prices beginning on January 1, 2021. In December 2020, implementation of the interim final rule was halted nationwide by orders entered in the U.S. District Court for the District of Maryland and the U.S. District Court for the Northern District of California, which found that the interim final rule was likely procedurally defective. It is not yet known whether the Biden Administration will seek to rescind the interim final rule and/or other actions taken by the Trump Administration such as those discussed above.

At the state level, individual states in the United States are increasingly passing legislation and implementing regulations designed to control pharmaceutical and biological product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing.

In the future, there may continue to be additional proposals relating to the reform of the U.S. healthcare system, some of which could further limit the prices we will be able to charge for our product candidates, or the amounts of

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reimbursement available for our product candidates. If future legislation were to impose direct governmental price controls and access restrictions, it could have a significant adverse impact on our business. Managed care organizations, as well as Medicaid and other government agencies, continue to seek price discounts. Some states have implemented, and other states are considering, measures to reduce costs of the Medicaid program, and some states are considering implementing measures that would apply to broader segments of their populations that are not Medicaid-eligible. Due to the volatility in the current economic and market dynamics, we are unable to predict the impact of any unforeseen or unknown legislative, regulatory, payor or policy actions, which may include cost containment and healthcare reform measures. Such policy actions could have a material adverse impact on our profitability.

Human Capital

As of December 31, 2020, we had 72 full-time employees, working in the United States or Ireland. Of these full-time employees, 25 were engaged in research and development and medical science communications, 32 were engaged in commercial activities including sales, marketing and market access, and 15 were engaged in other general and administrative activities. We are not a party to any collective bargaining agreements.

Our success depends upon our ability to retain and attract highly qualified management and technical personnel. Talent management is critical to our ability to execute on our long-term growth strategy. We understand the importance of retention, growth and development of our employees. We continue to be committed to an inclusive culture which values equality, opportunity, and respect. In support of our inclusive culture, we believe we offer competitive compensation and benefits; provide respectful workplace training to strengthen employee understanding; and strive to recruit a diverse talent pool across all levels of the organization. All employees certify the Code of Business Conduct annually.

We strive to ensure the health and well-being of our employees. We offer health and wellness reimbursement and Company sponsored health and wellness programs.

COVID-19 Health and Safety

During the COVID-19 pandemic, most of our corporate employees are currently working remotely from home. We have suspended all commercial air and train travel for business, and any other employee travel is done in accordance with state and local guidelines. In addition, our field teams have had limited access to physicians. If any of our employees do go to the office, we have adopted health screening, implemented socially distancing and personal protective equipment requirements, enhanced cleaning, and sanitation procedures, to reduce the potential for disease transmission.

We continue to have a strong focus on employee engagement in spite of our largely remote working employee base. To support our diverse workforce and in line with our core values, we have hosted virtual connection events, participated in community outreach targeting local underserved populations, and delivered on-demand learning to fit

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employees’ schedules. Flexible work arrangements and fit for purpose offerings will be key to supporting the needs of our workforce now and into our future.  

Corporate Information

Strongbridge Biopharma plc, an Irish public limited company, was established on May 26, 2015 under the name Cortendo plc.

Our principal office in Ireland is located at Suite 206, Fitzwilliam Hall, Fitzwilliam Place, Dublin 2, D02 T292, Ireland. Our principal executive office in the United States is located at 900 Northbrook Drive, Suite 200, Trevose, Pennsylvania, 19053, USA, and our telephone number is +1 610-254-9200.

Our website is www.strongbridgebio.com. The information on, or that can be accessed through, our website is not part of and should not be incorporated by reference into this Annual Report.

Available Information

Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, beneficial ownership reports on Forms 3, 4 and 5 and proxy statements, as well as all amendments to those reports are available free of charge through our investor relations website at www.strongbridgebio.com, as soon as reasonably practicable after such reports are electronically filed with, or furnished to, the Securities and Exchange Commission (“SEC”). The information found on our website is not part of this or any other report that we file with or furnish to the SEC. Our SEC filings are also available to the public over the Internet at the SEC’s website at www.sec.gov.

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Our future revenue will be dependent, in part, upon the size of the markets in the territories for which our products receive regulatory approval, the accepted prices for our products, the ability to obtain coverage and adequate reimbursement, and whether we own the commercial rights for that territory. If the number of our addressable patients is not as significant as we estimate, the indication approved by regulatory authorities is narrower than we expect, or the treatment population is narrowed by competition, physician choice or treatment guidelines, we may not generate significant revenue from our products.

Furthermore, we anticipate that our expenses may continue to increase as we:

The net losses we incur before achieving profitability may fluctuate significantly from quarter-to-quarter and year-to-year, such that a period-to-period comparison of our results of operations may not be a good indication of our future performance. Moreover, if we continue to incur substantial losses, we could be liquidated, and the value of our shares might be significantly reduced, or the shares might be of no value.

Even if we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our failure to successfully execute on our business strategy would decrease the value of our company and could impair our ability to raise capital, expand our business or continue our operations. A decline in the value of our company could cause you to lose all or part of your investment.

Additional competitors could enter the market with generic versions of our products, which may result in a decline in sales of affected products.

Under the Hatch-Waxman Act, a pharmaceutical manufacturer may file an abbreviated new drug application (“ANDA”), seeking approval of a generic copy of an approved innovator product. Under the Hatch-Waxman Act, a manufacturer may also submit an NDA under section 505(b)(2) that references the FDA's prior approval of the innovator product. A 505(b)(2) NDA product may be for a new or improved version of the original innovator product. Hatch-Waxman also provides for certain periods of regulatory exclusivity, which preclude FDA approval, or, in some circumstances, FDA filing and reviewing, of an ANDA or 505(b)(2) NDA. These include, subject to certain exceptions, the period during which an FDA-approved drug is subject to orphan drug exclusivity.

We will continue to rely on orphan drug exclusivity in the marketing and sales of Keveyis and intend to rely on orphan drug exclusivity and NCE exclusivity in the marketing and sale of Recorlev, if approved. While we applied for NCE exclusivity for Recorlev under section 505(u) of the Federal Food, Drug, and Cosmetic Act, the FDA may determine that the Recorlev application does not meet the eligibility criteria under 505(u) for NCE exclusivity.

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In addition to the benefits of regulatory exclusivity, an innovator NDA holder may have patents claiming the active ingredient, method of use, product formulation or an approved use of the drug, which would be listed with the product in the FDA publication, "Approved Drug Products with Therapeutic Equivalence Evaluations," known as the "Orange Book." If there are patents listed in the Orange Book, a 505(j) or 505(b)(2) applicant that seeks to market its product via an ANDA before expiration of the patents must include in the ANDA what is known as a "Paragraph IV certification," challenging the validity or enforceability of, or claiming non-infringement of, the listed patent or patents. Notice of the certification must be given to the innovator, too, and if within 45 days of receiving notice the innovator sues to protect its patents, final approval of the ANDA is stayed for 30 months, or as lengthened or shortened by the court.

Accordingly, competitors could file ANDAs for generic versions of Keveyis or any of our product candidates that are approved, or 505(b)(2) NDAs that reference our product candidates, respectively. If there are patents listed for our products or product candidates in the Orange Book, those ANDAs and 505(b)(2) NDAs would be required to include a certification as to each listed patent indicating whether the ANDA applicant does or does not intend to challenge the patent. We cannot predict whether any patents issuing from our pending patent applications will be eligible for listing in the Orange Book, how any generic competitor would address such patents, whether we would sue on any such patents or the outcome of any such suit.

We may not be successful in securing or maintaining proprietary patent protection for products and technologies we develop or license. Moreover, if any patents that are granted and listed in the Orange Book are successfully challenged by way of a Paragraph IV certification and subsequent litigation, the affected product could immediately face generic competition and its sales would likely decline rapidly and materially. Should sales decline, we may have to write off a portion or all of the intangible assets associated with the affected product and our ability to generate revenue could be compromised.

We expect that we will need additional funding in order to fully commercialize Recorlev (if approved) and to complete the development of other product candidates if they are ultimately approved by the FDA, EMA or any comparable foreign regulatory agency.

We are currently advancing two product candidates through clinical development, Recorlev and veldoreotide. While we expect that our costs associated with the clinical development of Recorlev will decrease as we complete the associated clinical trials, we expect that we will require additional capital to commercialize Recorlev if it is ultimately approved for marketing by the FDA, EMA or any comparable foreign regulatory agency. Our future funding requirements will depend on many factors, including, but not limited to:

Until such time, if ever, as we can generate substantial product revenue, we expect to finance our cash needs through a combination of product revenue, equity offerings and debt financings. If we are unable to raise additional funds when needed, we may be required to delay, limit, reduce or terminate our product development or future commercialization efforts, or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.

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If we are unable to obtain funding on a timely basis, we may be required to significantly curtail, delay or discontinue one or more of our research or development programs or the commercialization of any product or product candidate that is approved, or be unable to expand our operations or otherwise capitalize on our business opportunities, as desired.

We have no manufacturing capabilities and currently depend on one supplier to manufacture Keveyis. We also depend on a limited number of other suppliers to manufacture our product candidates for use in clinical trials and expect to depend on a limited number of suppliers to manufacture Recorlev (if approved). If these suppliers are unable or unwilling to continue manufacturing for us and we are unable to contract quickly with alternative sources our business will be harmed.

Taro produces all of our requirements for Keveyis. We rely on other third-parties to manufacture our product candidates for use in clinical trials and expect to rely on third-party manufacturers for commercial supply of Recorlev (if approved). If any of these vendors is unable or unwilling to meet our future requirements, we may not be able to manufacture and/or supply our products in a timely manner. Our current arrangements with these manufacturers are terminable by such manufacturers, subject to certain notice provisions.

We may not be successful in executing our research programs or business development efforts.

Research programs and business development efforts to identify new product candidates require substantial technical, financial and human resources. We may focus our efforts and resources on potential programs or product candidates that ultimately prove to be unsuccessful. Our research programs, business development efforts or licensing attempts may fail to yield additional complementary or successful product candidates for clinical development and commercialization, in which case we may not be successful in executing our growth strategy or our growth strategy may not deliver the anticipated results.

Risks Related to Our Clinical Trials, Government Regulation and Legal Proceedings

Clinical trials are very expensive, time consuming and difficult to design and implement, and involve uncertain outcomes. Furthermore, results of earlier preclinical studies and clinical trials may not be predictive of results of future preclinical studies or clinical trials.

Clinical testing is expensive and can take many years to complete, and its outcome is inherently uncertain. Failure can occur at any time during the clinical trial process. The results of preclinical studies and earlier clinical trials may not be predictive of the results of later-stage clinical trials. Product candidates in later stages of clinical trials may fail to show the desired safety and efficacy traits despite having progressed through preclinical studies and initial clinical trials. Furthermore, different countries have different standards of care and different levels of access to care for patients, which in part drives the heterogeneity of the patient populations that enroll in our studies.

In addition, because we were not involved in and had no control over the preclinical and clinical development of veldoreotide prior to our acquisition of this product candidate in June 2015, we are dependent on the prior research and development of veldoreotide having been conducted in accordance with the applicable protocol, legal, regulatory and scientific standards, the accuracy of reported results of all clinical trials conducted prior to our acquisition, and the correct interpretation of collected data from these clinical trials. If any of these assumptions prove to be incorrect, we could experience increased costs and delays in the development of veldoreotide, which could hurt our ability to generate future revenues from this product candidate.

We may experience delays in our ongoing or future preclinical studies or clinical trials, and we do not know whether future preclinical studies or clinical trials will begin on time, need to be redesigned, enroll an adequate number of subjects or patients on time or be completed on schedule, if at all. There may be a limited patient pool for some of our product candidates, given our focus on addressing rare diseases.

We rely on third parties to conduct our nonclinical and clinical studies and perform other tasks for us. If these third parties do not successfully carry out their contractual duties, meet expected deadlines, or comply with regulatory

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requirements, we may be exposed to sub-optimal quality and reputational harm, we may not be able to obtain regulatory approval for or commercialize our product candidates, and our business could be substantially harmed.

We have relied upon and plan to continue to rely upon third parties, including CROs, collaborative partners, and independent investigators to analyze, collect, monitor, and manage data for our ongoing nonclinical and clinical programs. We are responsible for ensuring that each of our studies is conducted in accordance with the applicable protocol, legal, regulatory, and scientific standards, and our reliance on the CROs and other third parties does not relieve us of our regulatory responsibilities. We and our CROs and other vendors and partners are required to comply with GMP, GCP, and GLP, which are regulations and guidelines enforced by the FDA, the Competent Authorities of the Member States of the European Economic Area, and comparable foreign regulatory authorities for all of our product candidates in development. Regulatory authorities enforce these regulations through periodic inspections of study sponsors, principal investigators, study sites, and other contractors. If we or any of our CROs or other vendors and partners, including the sites at which clinical studies are conducted, fail to comply with applicable regulations, the data generated in our nonclinical and clinical studies may be deemed unreliable and the FDA, EMA, or comparable foreign regulatory authorities may deny approval and/or require us to perform additional nonclinical and clinical studies before approving our marketing applications, which would delay the approval process.

If any of our relationships with these third parties terminate, we may not be able to enter into arrangements with alternative vendors or do so on commercially reasonable terms. Switching or adding additional vendors involves additional cost and requires management time and focus. In addition, there is a natural transition period when a new vendor commences work. As a result, delays may occur, which can materially impact our ability to meet our desired clinical development timelines. Though we carefully manage our relationships with our vendors and partners, there can be no assurance that we will not encounter similar challenges or delays in the future or that these delays or challenges will not have a material adverse impact on our business, financial condition, and business prospects.

The regulatory approval process of the FDA, EMA or any comparable foreign regulatory agency may be lengthy, time consuming and unpredictable.

We cannot be certain that any of our product candidates will be successful in clinical trials or receive regulatory approval. The FDA, EMA and other comparable foreign regulatory agencies have substantial discretion in the approval process and in determining when or whether regulatory approval will be obtained for any of our product candidates. Even if we believe the data collected from clinical trials of our product candidates are promising, such data may not be sufficient to support approval by the FDA, EMA or any comparable foreign regulatory agency. Many companies that believed their product candidates performed satisfactorily in preclinical studies and clinical trials have nonetheless failed to obtain regulatory approval for the product candidates.

Furthermore, while certain of our employees have prior experience with submitting marketing applications to the FDA, EMA and comparable foreign regulatory agencies, we, as a company, have not submitted such applications for our product candidates. Applications for any of our product candidates could fail to receive regulatory approval for many reasons, including, but not limited to, the following:

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We have submitted a marketing authorization for Recorlev in the United States and will evaluate filing potentially elsewhere. We have determined, following FDA consultation, that the 505(b)(2) approval pathway, which permits an NDA applicant to rely on data from studies that were not conducted by or for the applicant and for which the applicant has not obtained a right of reference, is the appropriate pathway for a Recorlev NDA. We intend to rely on published literature and safety information for ketoconazole in our NDA for Recorlev. There can be no assurances, however, that the 505(b)(2) approval pathway in the United States, or similar approval pathways outside of the United States, will be available for Recorlev or that the FDA or other regulatory authorities will approve Recorlev through an application based on such pathways.

We generally plan to seek regulatory approval to commercialize our product candidates in the United States, the European Union and other key global markets. To obtain regulatory approval in other countries, we must comply with regulatory requirements of such other countries regarding safety, efficacy, chemistry, manufacturing and controls, clinical trials, commercial sales, pricing and distribution of our product candidates. Even if we are successful in obtaining approval in one jurisdiction, we cannot ensure that we will obtain approval in any other jurisdictions. Failure to obtain marketing authorization for our product candidates in any jurisdiction will result in our being unable to market and sell such products. Similarly, regulatory agencies may not approve the labeling claims that are necessary or desirable for the successful commercialization of our product candidates.

Any of our current or future product candidates could take a significantly longer time to gain regulatory approval than we expect or may never gain regulatory approval. This could delay or eliminate any potential product revenue by delaying or terminating the potential commercialization of our product candidates.

Physicians may accept Keveyis and/or Recorlev (if approved) slowly or may never accept them, which would adversely affect our financial results.

Physicians will prescribe Keveyis only if they determine, based on experience, clinical data, side effect profiles and other factors, that it is preferable to other treatments, even if those products are not approved for PPP. Because PPP is rare, most physicians are inexperienced in the care of patients with the illness and it may be difficult to persuade them to prescribe Keveyis. Other factors that may affect the commercial success of Keveyis include:

Physicians will prescribe Recorlev (if approved) only if they determine, based on experience, clinical data, side effect profiles and other factors, that it is preferable to other treatments, even if those treatments are not approved for treating endogenous Cushing’s syndrome. Because endogenous Cushing’s syndrome is rare, many physicians are

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inexperienced in the treatment of patients with the illness and it may be difficult to persuade them to prescribe Recorlev (if approved). Other factors that may affect the commercial success of Recorlev include:

The failure of Keveyis and Recorlev (if approved) to achieve commercial success could prevent us from generating sufficient product sales and royalties to fully fund our commercial and development activities.

If serious adverse, undesirable or unacceptable side effects are identified during the development of our product candidates or following regulatory approval for our marketed products, we may be required to take actions that could significantly harm our business, financial condition, and results of operations.

If any of our product candidates are found to be associated with serious adverse, undesirable or unacceptable side effects, we may need to abandon their development or limit development to certain uses or sub-populations in which such side effects are less prevalent, less severe or more acceptable from a risk-benefit perspective. Many compounds that initially show promise in preclinical or early stage testing have later been found to cause side effects that have restricted their use and prevented further development of the compound for larger indications.

In our clinical trials of Recorlev to date, adverse events have included headache, nausea, back pain, dizziness, diarrhea and liver enzyme elevations among others. For veldoreotide, which is given by subcutaneous injections, adverse events have included injection site reaction such as swelling, itching and pain. Headache and gastrointestinal effects such as nausea and diarrhea have also been observed for veldoreotide. These adverse events can be dose-dependent and may increase in frequency and severity if we increase the dose to increase efficacy. Occurrence of serious treatment-related side effects could impede clinical trial enrollment, require us to halt the clinical trial, and prevent receipt of regulatory approval from the FDA, EMA or any comparable foreign regulatory agency. They could also adversely affect physician or patient acceptance of our product candidates.

Discovery of previously unknown problems, or increased focus on a known problem, with an approved product may result in restrictions on its permissible uses, including withdrawal of the medicine from the market. Currently, ketoconazole is required to include a "black box" warning on its label for use as an antifungal related to liver toxicity in the United States. Manufactured ketoconazole consists of two enantiomers, dextroketoconazole and levoketoconazole, that are found in equal amounts, and is therefore referred to as a racemate mixture. Recorlev is a single-enantiomer drug, a pure form of one of the two enantiomers (levoketoconazole) of ketoconazole. If Recorlev is required to include a similar "black box" warning on its label, it may limit our ability to commercialize the product, if approved.

Additionally, if we or others identify undesirable side effects caused by Keveyis or any other products candidates for which we receive regulatory approval, a number of potentially significant negative consequences could result, including, but not limited to:

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Any of these events could negatively impact the commercial prospects of the affected product and could significantly harm our business, financial condition, and results of operations.

We may become exposed to costly and damaging product liability claims, either in connection with the sale of our approved products or when testing our product candidates in clinical trials, and our product liability insurance may not cover all damages from such claims.

We are exposed to potential product liability and professional indemnity risks that are inherent in the research, development, manufacturing, marketing, and use of pharmaceutical products. The current and future use of product candidates by us in clinical trials, and the sale of any approved products, may expose us to liability claims. These claims might be made by patients that use the product, healthcare providers, pharmaceutical companies or others selling such products, and/or other third parties we have agreed to indemnify. Any claims against us, regardless of their merit, could be difficult and costly to defend, and could compromise the market acceptance of our products or any prospects for commercialization of our product candidates, if approved.

Although the clinical trial process is designed to identify and assess potential side effects, it is always possible that a drug, even after regulatory approval, may exhibit unforeseen side effects. Physicians and patients may not comply with product instructions or may ignore warnings regarding potential adverse effects and patients who should not use our products. If any of our products or product candidates were to cause adverse side effects during clinical trials or after approval, we may be exposed to substantial liabilities.

We have limited product liability insurance that offers coverage we believe to be appropriate for a company such as ours. We intend to extend our product liability insurance coverage to any product candidate for which we obtain marketing approval. However, this insurance may be prohibitively expensive or may not fully cover our potential liabilities. Our inability to obtain adequate insurance coverage at an acceptable cost could prevent or inhibit the commercialization of our products or result in meaningful underinsured or uninsured liability. Defending a lawsuit could be costly and significantly divert management's attention from conducting our business. If we were sued successfully, our liability could be substantial.

Our ability to successfully commercialize Keveyis, Recorlev (if approved) and any other product candidates for which we receive regulatory approval will depend in part on the extent to which governmental authorities and health insurers establish adequate coverage and reimbursement levels and pricing policies.

Our ability to successfully commercialize Keveyis, Recorlev (if approved) and any other product candidates for which we receive regulatory approval will depend, in part, on the extent to which coverage and reimbursement for these products will be available from government and health administration authorities, private health insurers and other third-party payors. To manage healthcare costs, many governments and third-party payors increasingly scrutinize the pricing of new therapies and require greater levels of evidence of favorable clinical outcomes and cost-effectiveness before extending coverage and adequate reimbursement to such new technologies. In the United States, the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (the “Medicare Modernization Act”) changed the way Medicare covers and pays for pharmaceutical products. The legislation expanded Medicare coverage for drug purchases by the elderly under a new Part D and introduced a new reimbursement methodology based on average sale prices for physician-administered drugs. In addition, this legislation provided authority for limiting the number of drugs that will be covered in any therapeutic class. Cost-reduction initiatives and other provisions of this legislation could decrease the coverage and reimbursement that we receive for any approved products. While the Medicare Modernization Act applies only to drug benefits for Medicare beneficiaries, private payors often follow Medicare coverage policy and payment limitations in setting their own reimbursement rates. Therefore, any reduction in reimbursement that results from the Medicare Modernization Act may result in a similar reduction in payments from private payors. In light of such challenges to prices and increasing levels of evidence of the benefits and clinical outcomes of new technologies, we cannot be sure that coverage will be available for these products, and, if available, that the reimbursement rates will be

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adequate. If adequate levels of coverage and reimbursement for these products is unavailable, our ability to generate revenue from product sales and/or royalties will be compromised.

Third-party payors may deny coverage and reimbursement status altogether of a given drug product, or cover the product, but may also establish prices at levels that are too low to enable us to realize an appropriate return on our investment in product development. Because the rules and regulations regarding coverage and reimbursement change frequently, in some cases on short notice, even when there is favorable coverage and reimbursement, future changes may occur that adversely impact such favorable coverage and reimbursement status. Further, the net reimbursement for drug products may be subject to additional reductions if there are changes to laws that presently restrict imports of drugs from countries where they may be sold at lower prices than in the United States.

The unavailability or inadequacy of third-party coverage and reimbursement could negatively affect the market acceptance of Keveyis, Recorlev (if approved) and any product candidates for which we receive regulatory approval and the future revenues we may expect to receive from these products.

We and our collaborators and contract manufacturers are subject to significant regulation with respect to the manufacturing of pharmaceutical products. The manufacturing facilities on which we rely may not continue to meet regulatory requirements or may not be able to meet supply demands.

All entities involved in the preparation of pharmaceutical products for clinical trials or commercial sale, including our existing contract manufacturers for our products and product candidates, are subject to extensive regulation. Components of a finished therapeutic product approved for commercial sale or used in late-stage clinical trials must be manufactured in accordance with cGMP. These regulations govern manufacturing processes and procedures, including record keeping, and the implementation and operation of quality systems to control and assure the quality of investigational products and products approved for sale. Poor control of production processes can lead to the introduction of contaminants or to inadvertent changes in the properties or stability of our product candidates that may not be detectable in final product testing. We, our collaborators or our contract manufacturers must supply all necessary documentation in support of an NDA or foreign equivalent on a timely basis and must adhere to GLP and cGMP regulations enforced by the FDA and other regulatory agencies through their facilities inspection program. Some of our contract manufacturers have never produced a commercially approved pharmaceutical product and therefore have not obtained the requisite regulatory authority approvals to do so. The facilities and quality systems of some or all of our collaborators and third-party contractors must pass a pre-approval inspection for compliance with the applicable regulations as a condition of regulatory approval of our product candidates or any of our other potential products.

In addition, the regulatory authorities may, at any time, audit or inspect a manufacturing facility involved with the preparation of our product candidates or our other potential products or the associated quality systems for compliance with the regulations applicable to the activities being conducted. Although we oversee the contract manufacturers, we cannot control the manufacturing process of, and are completely dependent on, our contract manufacturing partners for compliance with the regulatory requirements. If these facilities do not pass a pre-approval plant inspection, regulatory approval of the products may not be granted or may be substantially delayed until any violations are corrected to the satisfaction of the regulatory authority, if ever.

The regulatory authorities also may, at any time following approval of a product for sale, audit the manufacturing facilities of our collaborators and third-party contractors. If any such inspection or audit identifies a failure to comply with applicable regulations or if a violation of our product specifications or applicable regulations occurs independent of such an inspection or audit, we or the relevant regulatory authority may require remedial measures that may be costly and/or time consuming for us or a third party to implement, and that may include the temporary or permanent suspension of a clinical trial or commercial sales or the temporary or permanent closure of a facility.

If we, our collaborators or any of our third-party manufacturers fail to maintain regulatory compliance, the FDA or another applicable regulatory authority could impose regulatory sanctions including, among other things, refusal to approve a pending application our product candidates, withdrawal of an approval or suspension of production, fines, injunctions, civil penalties, seizures or recalls of products, operating restrictions and criminal prosecutions, any of which could harm our business.

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Additionally, if the supply from one approved manufacturer is interrupted, an alternative manufacturer would need to be qualified through an NDA supplement or equivalent foreign regulatory filing, which could result in further delay. The regulatory agencies may also require additional studies if a new manufacturer is relied upon for commercial production. Switching manufacturers may involve substantial costs and is likely to result in a delay in our desired clinical and commercial timelines.

These factors could cause us to incur higher costs and could cause the delay or termination of clinical trials, regulatory submissions, required approvals or commercialization of our product candidates. Furthermore, if our suppliers fail to meet contractual requirements and we are unable to secure one or more replacement suppliers capable of production at a substantially equivalent cost, our clinical trials may be delayed, or we could lose potential revenue.

Pricing for pharmaceutical products has come under increasing scrutiny by governments, legislative bodies and enforcement agencies. These activities may result in actions that have the effect of reducing our revenue or harming our business or reputation.

Pharmaceutical product pricing is subject to enhanced government and public scrutiny and calls for reform. There has recently been intense publicity regarding the pricing of pharmaceutical products generally, including publicity and pressure resulting from the prices charged for new products as well as price increases for older products that the government and public deem excessive. We may experience downward pricing pressure on the price of our products due to social or political pressure to lower the cost of drugs, which could reduce our revenue and future profitability. Many companies in our industry have received governmental requests for documents and information relating to drug pricing and patient support programs. We could incur significant expense and experience reputational harm as a result of these types of inquiries, as well as reduced market acceptance and demand for our products, which could harm our ability to market our products in the future. These factors could also result in changes in our product pricing and distribution strategies, reduced demand for our products and/or reduced reimbursement of products, including by federal health care programs such as Medicare and Medicaid and state health care programs.

In addition, federal and state governments may adopt policies affecting drug pricing and contracting practices outside of the context of federal programs such as Medicare and Medicaid, which may adversely affect our business. For example, several states have adopted laws that require drug manufacturers to provide advance notice of certain price increase and to report information relating to those price increases.

Risks Related to Our Intellectual Property

If we or our licensors are unable to obtain and maintain effective patent or license rights for our approved products, product candidates or any future product candidates, or if the scope of the patent or license rights obtained is not sufficiently broad, we may not be able to compete effectively in our markets.

In addition to the regulatory exclusivity maintained by Keveyis and our product candidates with regulatory orphan drug status, we rely upon a combination of patents, trade secret protection, license rights and/or confidentiality agreements to protect the intellectual property related to our products and product candidates. Our success depends in large part on our and our licensors' ability to obtain and maintain patent and other intellectual property protection in the United States and in other countries, as well as license rights, with respect to our proprietary technology, products and product candidates.

We have sought to protect our proprietary position by filing, where possible, patent applications in the United States and abroad related to our novel technologies and products that are important to our business. This process is expensive and time consuming, and we may not be able to file and prosecute all necessary or desirable patent applications at a reasonable cost, in a timely manner or in all jurisdictions. It is also possible that we will fail to identify patentable aspects of our research and development and manufacturing processes before it is too late to obtain patent protection.

The patent position of biotechnology and pharmaceutical companies generally is highly uncertain and involves complex legal and factual questions for which legal principles remain unsolved. The patent applications that we own, or

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in-license may fail to result in issued patents with claims that cover our products or product candidates in the United States or in foreign countries. Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent applications in the United States and other jurisdictions remain confidential for a period of time after filing, and some remain so until issued. Therefore, we cannot be certain that we were the first to file any patent application related to our products or product candidates, or whether we were the first to make the inventions claimed in our owned patents or pending patent applications, nor can we know whether those from whom we license patents were the first to make the inventions claimed or were the first to file. As a result, the issuance, scope, validity, enforceability and commercial value of our patent rights are highly uncertain. There is no assurance that all potentially relevant prior art relating to our patents and patent applications has been found, which can invalidate a patent or prevent a patent from issuing from a pending patent application. Even if patents do successfully issue, and even if such patents cover our products or product candidates, third parties may challenge their validity, enforceability or scope, which may result in such patents being narrowed, found unenforceable or invalidated, which could allow third parties to commercialize our technology or products and compete directly with us, without payment to us, or result in our inability to manufacture or commercialize products without infringing third-party patent rights. Furthermore, even if they are unchallenged, our patents and patent applications may not adequately protect our intellectual property, provide exclusivity for our products or product candidates, prevent others from designing around our claims or provide us with a competitive advantage. Any of these outcomes could impair our ability to prevent competition from third parties.

We have filed several patent applications covering various aspects of our products and product candidates. We cannot offer any assurances about which, if any, patents will issue, the breadth of any such patent, or whether any issued patents will be found invalid and unenforceable or will be challenged by third parties. Any successful opposition to these patents or any other patents owned by or licensed to us after patent issuance, or the loss or other impairment of any license rights relating to our products or product candidates, could deprive us of rights necessary for the successful commercialization of any products or product candidates that we may develop. Further, if we encounter delays in regulatory approvals, the period of time during which we could market a product or product candidate under patent protection could be reduced.

We may not have sufficient patent terms to effectively protect our products and business.

Patents have a limited lifespan. In the United States, the natural expiration of a patent is generally 20 years after it is first filed. Although various extensions may be available, the life of a patent, and the protection it affords, is limited. Given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such candidates might expire before or shortly after such product candidates are commercialized. 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 or otherwise provide us with a competitive advantage. Even if patents covering our products or product candidates are obtained, once the patent life has expired for a product, we may be open to competition from generic medications.

Third-party claims of intellectual property infringement may expose us to substantial liability or prevent or delay our development and commercialization efforts.

Our commercial success depends in part on our ability to develop, manufacture, market and sell our products that have been approved for sale, and to use our proprietary technology without alleged or actual infringement, misappropriation or other violation of the patents and proprietary rights of third parties. There have been many lawsuits and other proceedings involving patent and other intellectual property rights in the biotechnology and pharmaceutical industries, including patent infringement lawsuits, interferences, oppositions and reexamination proceedings before the USPTO, and corresponding foreign patent offices. Numerous U.S. and foreign issued patents and pending patent applications, which are owned by third parties, exist in the fields in which we will market products and are developing product candidates. Some claimants may have substantially greater resources than we do and may be able to sustain the costs of complex intellectual property litigation to a greater degree and for longer periods of time than we could. In addition, patent holding companies that focus solely on extracting royalties and settlements by enforcing patent rights may target us. As the biotechnology and pharmaceutical industries expand and more patents are issued, the risk increases that our products and product candidates may be subject to claims of infringement of the intellectual property rights of third parties.

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Third parties may assert that we are employing their proprietary technology without authorization. There may be third-party patents or patent applications with claims to compositions, formulations, methods of manufacture or methods of treatment related to the use or manufacture of Keveyis or our product candidates. We cannot be sure that we know of each and every patent and pending application in the United States and abroad that is relevant or necessary to the commercialization of Keveyis or our product candidates. Because patent applications can take many years to issue, there may be currently pending patent applications that may later result in issued patents upon which our products or product candidates may infringe. In addition, third parties may obtain patents in the future and claim that use of our technologies infringes upon these patents. If any third-party patents were held by a court of competent jurisdiction to cover the manufacturing process of any of our products or product candidates, any compositions formed during the manufacturing process or any final product itself, the holders of any such patents may be able to block our ability to commercialize such product or product candidate unless we obtained a license under the applicable patents, or until such patents expire or are finally determined to be invalid or unenforceable. Similarly, if any third-party patents were held by a court of competent jurisdiction to cover aspects of our compositions, formulations, or methods of treatment, prevention or use, the holders of any such patents may be able to block our ability to develop and commercialize the applicable product or product candidate unless we obtained a license or until such patent expires or is finally determined to be invalid or unenforceable. In either case, such a license may not be available on commercially reasonable terms, or at all. Even if we were able to obtain a license, it could be non-exclusive, thereby giving our competitors access to the same technologies licensed to us.

Our reliance on third parties requires us to share our trade secrets, which increases the possibility that a competitor will discover them or that our trade secrets will be misappropriated or disclosed.

Because we rely on third parties to develop and manufacture our product candidates, we must, at times, share trade secrets with them. We seek to protect our proprietary technology in part by entering into confidentiality agreements and, if applicable, material transfer agreements, collaborative research agreements, consulting agreements or other similar agreements with our collaborators, advisors, employees, and consultants prior to beginning research or disclosing proprietary information. These agreements typically limit the rights of the third parties to use or disclose our confidential information, such as trade secrets. Despite the contractual provisions employed when working with third parties, the need to share trade secrets and other confidential information increases the risk that such trade secrets become known by our competitors, are inadvertently incorporated into the technology of others, or are disclosed or used in violation of these agreements. Given that our proprietary position is based, in part, on our know-how and trade secrets, a competitor's discovery of our trade secrets or other unauthorized use or disclosure would impair our competitive position and may harm our business.

We may not be able to protect our intellectual property rights throughout the world.

Filing, prosecuting and defending patents on our products or product candidates in all countries throughout the world would be prohibitively expensive, and our intellectual property rights in some countries outside the United States can be less extensive than those in the United States. In addition, the laws of some foreign countries do not protect intellectual property rights to the same extent as federal and state laws in the United States. Consequently, we may not be able to prevent third parties from practicing our inventions in all countries outside the United States, or from selling or importing products made using our inventions in and into the United States or other jurisdictions. Competitors may use our technologies in jurisdictions where we have not obtained patent protection to develop their own products and may also export infringing products to territories where we have patent protection, but enforcement is not as strong as that in the United States. These products may compete with our products, and our patents or other intellectual property rights may not be effective or sufficient to prevent them from competing.

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Risks Related to Our Ordinary Shares

The price of our ordinary shares may be volatile and may fluctuate due to factors beyond our control.

The market price of our ordinary shares may be volatile and subject to wide fluctuations in response to a variety of factors, many of which are beyond our control, including:

The share price of publicly traded emerging biopharmaceutical and drug discovery and development companies has been highly volatile and is likely to remain highly volatile in the future. In addition, the stock market in general has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of individual companies. Broad market and industry factors may hurt the market price of companies' stock, including ours, regardless of actual operating performance.

If securities or industry analysts do not publish research, or publish inaccurate or unfavorable research, about our business, the price of our ordinary shares and our trading volume could decline.

The trading market for our ordinary shares depends in part on the research and reports that securities or industry analysts publish about us or our business. If too few securities or industry analysts commence or continue coverage of our company, the trading price for our ordinary shares would likely be negatively affected. In the event securities or industry analysts initiate coverage, if one or more of the analysts who cover us downgrade our ordinary shares or publish inaccurate or unfavorable research about our business, the price of our ordinary shares 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 ordinary shares could decrease, which might cause the price of our ordinary shares and trading volume to decline.

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If we are classified as a passive foreign investment company (“PFIC”) for U.S. federal income tax purposes, U.S. Holders of our ordinary shares may be subject to adverse U.S. federal income tax consequences.

A non-U.S. corporation generally will be classified as a PFIC for U.S. federal income tax purposes for any taxable year if either (1) 75% or more of its gross income for such year consists of certain types of "passive" income or (2) 50% or more of the value of its assets (determined on the basis of a quarterly average) during such year produce or are held for the production of passive income. For this purpose, "passive income" generally includes, among other items of income, dividends, interest, royalties, rents and gains from commodities and securities transactions and from the sale or exchange of property that gives rise to passive income, and a non-U.S. corporation is treated as owning a proportionate share of the assets and earning a proportionate share of the income of any other corporation in which such non-U.S. corporation owns, directly or indirectly, more than 25% of the value of such other corporation's stock.

A U.S. Holder that holds ordinary shares during any taxable year in which we are a PFIC would be subject to substantially increased U.S. federal income tax liability, including upon the receipt of any "excess distributions" from us and upon the sale or other disposition of our ordinary shares. Although certain elections may be available to mitigate the adverse impact of the PFIC rules, such elections may result in a current U.S. federal tax liability prior to any distribution on or disposition of our ordinary shares. Further, there can be no assurances that we will supply U.S. Holders with information that such U.S. Holders are required to report under the rules governing such elections. Accordingly, the acquisition of our ordinary shares may not be an appropriate investment for certain holders that are not tax-exempt organizations. U.S. Holders should consult their tax advisers regarding the application of the PFIC rules to an investment in our ordinary shares.

Our shareholder’s rights are governed by Irish law and differ from the rights of shareholders under U.S. law.

We are a public limited company incorporated under the laws of Ireland. Therefore, the rights of holders of ordinary shares are governed by Irish law and by our memorandum and articles of association. These rights differ from the typical rights of shareholders in U.S. corporations. In certain cases, facts that, under U.S. law, would entitle a shareholder in a U.S. corporation to claim damages may not give rise to a cause of action under Irish law entitling a shareholder in an Irish company to claim damages. For example, the rights of shareholders to bring proceedings against us or against our directors or officers in relation to public statements are more limited under Irish law than under the civil liability provisions of the U.S. securities laws.

Our shareholders may have difficulties enforcing, in actions brought in courts in jurisdictions located outside the United States, judgments obtained in the U.S. courts under the U.S. securities laws. In particular, if a shareholder sought to bring proceedings in Ireland based on U.S. securities laws, the Irish court might consider that:

Our shareholders should also be aware that Irish law does not allow for any form of legal proceedings directly equivalent to the class action available in the United States.

A future transfer of our ordinary shares, other than one effected by means of the transfer of book-entry interests in DTC, may be subject to Irish stamp duty.

The rate of Irish stamp duty, when applicable, on the transfer of shares in an Irish-incorporated company is 1% of the price paid, or the market value of the shares acquired, whichever is greater. Payment of Irish stamp duty is generally a legal obligation of the transferee. We expect that most of our ordinary shares will be traded through the

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Depositary Trust Company (“DTC”), or through brokers who hold such shares on behalf of customers through DTC. As such, the transfer of ordinary shares should be exempt from Irish stamp duty based on established practice of the Irish Revenue Commissioners. We received written confirmation from the Irish Revenue Commissioners on June 22, 2015 that a transfer of our ordinary shares held through DTC and transferred by means of a book-entry interest would be exempt from Irish stamp duty. However, if you hold your ordinary shares directly of record, rather than beneficially through DTC, or through a broker that holds your ordinary shares through DTC, any transfer of your ordinary shares may be subject to Irish stamp duty. The potential for Irish stamp duty to arise could adversely affect the price and liquidity of our ordinary shares. In addition, the terms of our eligibility agreement with DTC requires us to provide certain indemnities relating to Irish stamp duty to third parties. If liability were to arise as a result of the indemnities provided under the terms of the eligibility agreement, we may face significant unexpected costs.

Anti-takeover provisions in our Articles and under Irish law could make an acquisition of us more difficult, limit attempts by our shareholders to replace or remove our current directors and management team and limit the market price of our ordinary shares.

Our Articles contain provisions that may delay or prevent a change of control, discourage bids at a premium over the market price of our ordinary shares and adversely affect the market price of our ordinary shares and the voting and other rights of the holders of our ordinary shares. These provisions include:

These provisions do not make us immune from takeovers. However, these provisions will apply even if the offer may be considered beneficial by some shareholders. In addition, these provisions may frustrate or prevent any attempts by our shareholders to replace or remove our current management team by making it more difficult for shareholders to replace members of our board of directors, which is responsible for appointing the members of our management.

Irish law differs from the laws in effect in the United States with respect to defending unwanted takeover proposals and may give our board of directors less ability to control negotiations with hostile offerors.

We are subject to the Irish Takeover Rules. Under the Irish Takeover Rules, our board of directors is not permitted to take any action that might frustrate an offer for our ordinary shares once our board of directors has received an approach that may lead to an offer or has reason to believe that such an offer is or may be imminent, subject to certain exceptions. Potentially frustrating actions such as (1) the issue of shares, options, restricted share units or convertible securities, (2) material acquisitions or disposals, (3) entering into contracts other than in the ordinary course of business or (4) any action, other than seeking alternative offers, which may result in frustration of an offer, are prohibited during the course of an offer or at any earlier time during which our board of directors has reason to believe an offer is or may be imminent. These provisions may give our board of directors less ability to control negotiations with hostile offerors than would be the case for a corporation incorporated in the United States.

Certain provisions of the warrants issued in our 2016 private placement could impede a sale of the company.

In the event of a sale of the company, the terms of the warrants issued to investors in our December 2016 private placement require us to use our best efforts to ensure the holders of such warrants will have a continuing right to

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purchase shares of the acquirer and, if our efforts are unsuccessful, to make a payment to such warrant holders based on a Black-Scholes valuation (using variables as specified in the warrant agreements). Such payment must be made in cash in the event that the acquisition results in our shareholders receiving cash from the acquirer at the closing of the transaction and must be made in shares of the Company (with the value of each ordinary share determined according to the calculation specified in the warrant agreements) in the event that the acquisition results in our shareholders receiving shares in the acquirer or other entity at the closing of the transaction. In the event that our shareholders receive both cash and shares at the closing of the transaction, such payment to the warrant holders shall also be made in both cash and shares in the same proportion as the consideration received by the shareholders.

Notwithstanding the foregoing, in the event that as a result of an acquisition the warrants will be exercisable for anything other than shares or securities that are listed on a regulated market (within the meaning of the Markets in Financial Instruments Directive (2004/39(EC))) or a U.S. national securities exchange, the warrant holders will be entitled to demand to receive a cash payment in an amount equal to the Black-Scholes Value per warrant (calculated in accordance with the warrants) contemporaneously with or promptly after the consummation of such acquisition.

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Securities Authorized for Issuance Under Equity Compensation Plans

See Part III, Item 12. “Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters” for information relating to our equity compensation plans.

Recent Sale of Unregistered Securities and Use of Proceeds

In connection with our decision to borrow an additional $10 million (the second tranche) under our $30 million Term Loan Agreement (“Loan Agreement”) with Avenue Venture Opportunities Fund L.P. (“Avenue”), and pursuant to the terms of the Loan Agreement, on December 30, 2020 we issued to Avenue a warrant to purchase 267,390 ordinary shares at an exercise price of $1.87 per share. The Warrant will be exercisable, in full or in part, at any time prior to five years following the issue date and contains customary provisions for assumption or exchange upon a change of control or a sale of all or substantially all of the assets of the Company.

The warrant to Avenue was issued in reliance upon the exemption from registration provided by Section 4(a)(2) of the Securities Act of 1933, as amended, based in part on representations made by Avenue.

Purchases of Equity Securities By the Issuer and Affiliated Purchasers

None.

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Veldoreotide is a next-generation somatostatin analog being investigated for potential applications in conditions amenable to somatostatin receptor activation. Both levoketoconazole and veldoreotide have received orphan designation from the FDA and the European Medicines Agency (“EMA”).

Recent Developments

We have submitted our NDA for Recorlev with the FDA.

Effective March 3, 2021, Richard S. Kollender, who has served as Chief Operating Officer of Strongbridge since September 2019, will be promoted to President and Chief Financial Officer.

COVID-19

​

COVID-19 emerged in Asia at the end of calendar year 2019. On March 11, 2020, the World Health Organization declared COVID-19 a pandemic, and on March 13, 2020 the United States declared a national emergency with respect to COVID-19. The COVID-19 pandemic has negatively impacted the global economy, disrupted global supply chains and created significant volatility and disruption in the financial markets.

While the COVID-19 pandemic did not have a material impact on our business, financial condition or results of operations for the year ended December 31, 2020, we have experienced operational business disruptions as a result of the outbreak. For example, most of our corporate employees are currently working remotely from home, we have suspended all commercial air and train travel for business, and any other employee travel is done in accordance with the state and local guidelines. In addition, our field teams have had limited access to physicians.

We continue to monitor the impacts of COVID-19 on the global economy and on our business operations. However, at this time, it is difficult to predict how long the potential operational impacts of COVID-19 will last or to what degree further disruption might impact our operations and financial results. An extended period of global supply chain and economic disruption could materially affect our business, results of operations, access to sources of liquidity and financial condition, as well as our ability to execute our business strategies and initiatives in their respective expected time frames.

Financial Operations Overview

Product Revenue, net

We sell Keveyis to one specialty pharmacy provider (the “Customer”), who is the exclusive distributor of Keveyis in the United States. Revenues from sales of Keveyis are recorded at the net sales price (transaction price), which includes estimates of variable consideration for which reserves are established and that result from rebates, co-pay assistance and other allowances that are offered by us and the patients’ payors. These reserves are based on the amounts earned or to be claimed on the related sales and are classified as reductions of accounts receivable (if the amount is payable to the Customer) or a current liability (if the amount is payable to a party other than the Customer). Where appropriate, these estimates may take into consideration a range of possible outcomes that are probability-weighted for relevant factors such as our historical experience, current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. Overall, these reserves reflect our best estimates of the amount of consideration to which we are entitled based on the terms of the contract. For a complete discussion of accounting for net product revenue, see Note 3, "Revenue recognition" to our consolidated financial statements.

Cost of Sales

Cost of sales includes third-party acquisition costs, third-party warehousing and product distribution charges.

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Selling, General and Administrative Expenses

Selling, general and administrative expenses include personnel costs, costs for outside professional services and other allocated expenses. Personnel costs consist of salaries, bonuses, benefits, travel and stock-based compensation. Outside professional services consist of legal, accounting and audit services, commercial evaluation and strategy services, sales, market access, marketing, investor relations, public relations, recruiting and other consulting services.

Research and Development Expenses

We expense all research and development costs as incurred. Our research and development expenses consist primarily of costs incurred in connection with the development of our product candidates, including:

We do not allocate personnel-related research and development costs, including stock-based compensation or other indirect costs, to specific programs, as they are deployed across multiple projects under development.

Amortization of Intangible Asset

Amortization of intangible asset relates to the amortization of our product rights to Keveyis. This intangible asset is being amortized over an eight-year period using the straight-line method.

Interest Expense

Interest expense represents interest paid to our lender, amortization of our debt discount, and issuance costs associated with loan and security agreements.

Other Income, Net

Other income, net, consists of unrealized gain and losses on the remeasurement of the fair value of warrant liability, interest income generated from our cash and cash equivalents, foreign exchange gains and losses, and gains and losses on investments. For 2019, we also recorded income and expenses relating to our service agreement with Novo Nordisk Inc. (“NNI”) to fund the costs of 23 of our field-based employees to provide full-time ongoing services to NNI, including the promotion of Macrilen in the United States in Other Income. In December 2019, we reached an agreement with Novo to terminate the services agreement. We received a $6 million payment in connection with such termination, which is reflected in Other Income. We no longer provide services to Novo.

Critical Accounting Policies and Estimates

This operating and financial review of our financial condition and results of operations is based on our consolidated financial statements, which have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”). The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as expenses incurred during the reporting periods. Our estimates are based

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on our historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

While our significant accounting policies are described in more detail in the notes to our financial statements appearing elsewhere in this Annual Report on Form 10-K, we believe the following accounting policies and estimates are critical.

Revenue Recognition

Revenues from sales of our products are recorded at the net sales price (transaction price), which includes estimates of variable consideration for which reserves are established and that result from rebates, co-pay assistance and other allowances that are offered by us and the patients’ payors. These reserves are based on the amounts earned or to be claimed on the related sales and are classified as reductions of accounts receivable (if the amount is payable to our customer) or a current liability (if the amount is payable to a party other than our customer). Where appropriate, these estimates may take into consideration a range of possible outcomes that are probability-weighted for relevant factors such as our historical experience, current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. Overall, these reserves reflect our best estimates of the amount of consideration to which we are entitled based on the terms of the contract. For a complete discussion of accounting for net product revenue, see Note 3, "Revenue recognition" to our consolidated financial statements.

Long-term Debt

Our long-term debt includes multiple features and redemption options. We evaluated if these features needed to be accounted for as stand-alone derivatives. When that was required, we used the Black-Scholes option-pricing model to determine their fair value. Inputs used to determine estimated fair value include the fair value of the underlying stock at the valuation date, the term of the option or warrant, risk-free interest rates, and the expected volatility of the underlying stock. The intrinsic value of the equity conversion feature was calculated based on ASC 470-20-30-5 to determine if it was beneficial conversion feature and how to allocate the proceeds. We have accounted for this term as a beneficial conversion feature, and the fair value is recorded in Additional paid-in capital.

Warrant Liability

The fair values of certain outstanding warrants were measured using the Black-Scholes option-pricing model. Inputs used to determine estimated fair value of the warrant liabilities include the fair value of the underlying stock at the valuation date, the term of the warrants, risk-free interest rates, and the expected volatility of the underlying stock. The significant unobservable input used in the fair value measurement of the warrant liabilities is the estimated term of the warrants. Generally, increases (decreases) in the fair value of the underlying stock and estimated term result in a directionally similar impact to the periodic fair value measurement of the outstanding warrant liability.

Stock-based compensation

We account for stock-based compensation awards in accordance with Financial Accounting Standards Board (“FASB”) ASC Topic 718, Compensation—Stock Compensation (“ASC 718”). ASC 718 requires all stock-based payments including grants of stock options and restricted stock and modifications to existing stock options, to be recognized in the consolidated statements of operations based on their fair values.

We record compensation expense for service-based awards over the vesting period of the award on a straight-line basis. Compensation expense related to awards with performance-based vesting conditions is recognized over the requisite service period using the accelerated attribution method to the extent achievement of the performance condition is probable.

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We estimate the fair value of our awards with service conditions using the Black-Scholes option pricing model, which requires the input of subjective assumptions, including (i) the expected stock price volatility, (ii) the expected term of the award, (iii) the risk-free interest rate and (iv) expected dividends.

We have estimated the expected term of employee service-based stock options using the “simplified” method, whereby the expected term equals the arithmetic average of the vesting term and the original contractual term of the option, due to our lack of sufficient historical data. The risk-free interest rates for periods within the expected term of the option are based on the U.S. Treasury Bond rate with a maturity date commensurate with the expected term of the associated award. We have never paid dividends, and do not expect to pay dividends in the foreseeable future.

We account for forfeitures as they occur as opposed to estimating forfeitures. We record stock-based compensation expense only for those awards that are expected to vest.

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Selling, general and administrative expenses were $40.9 million for the year ended December 31, 2020, a decrease of $8.2 million compared to the year ended December 31, 2019, primarily due to reduced personnel costs from headcount reductions, reduced spending due to COVID-19, and lower external expenses. Additionally, in 2019 we had a $3.2 million one-time charge for severance.

Research and development expenses were $25.8 million for the year ended December 31, 2020, a decrease of $5.1 million compared to the year ended December 31, 2019. The decrease was primarily due to decreases in product development and supporting activities resulting from the completion of our SONICS trial in 2019 and higher costs related to our LOGICS trial in 2019, offset by an increase in costs from our OPTICS trial in 2020.

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Amortization of Intangible Assets

Amortization of intangible assets was $5.0 million for the year ended December 31, 2020 and 2019.

Total other (expense) income, net, decreased by $21.3 million for the year ended December 31, 2020 as compared to the year ended December 31, 2019. The decrease was largely due to a net $12.2 million change in the revaluation of the fair value of our warrant liability for the year ended December 31, 2020. The change in the warrant liability is primarily due to increases in our stock price. Additional changes relate to a $6 million gain due to the termination of our field service agreement in 2019.

Income Tax Benefit (Expense)

We recorded an income tax benefit of $15 thousand for the year ended December 31, 2020 arising from adjustments to prior year Sweden tax expense and state taxes and we recorded income tax expense of $1.8 million for the year ended December 31, 2019 arising from intercompany interest income.

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We may never achieve profitability, and unless and until we do, we will continue to need to raise additional capital. We plan to continue to fund our operations and capital funding needs through equity, debt financing or other financings along with revenues from Keveyis. There can be no assurances, however, that additional funding will be available on terms acceptable to us.

September 2020 Public Offering of Ordinary Shares

On September 21, 2020, we sold 11,111,111 ordinary shares in a public offering at a price to the public of $2.25 per ordinary share for net proceeds of approximately $23.4 million, after deducting underwriting discounts and commissions and offering expenses payable by us.

On October 15, 2020 we sold an additional 349,808 ordinary shares to the underwriters of our September 2020 public offering in connection with their partial exercise of their option to purchase additional shares to cover over-allotments at a price of $2.25 per ordinary share for net proceeds of approximately $0.7 million, after deducting underwriting discounts and commissions and offering expenses payable by us.

At-The-Market Facility

We entered into an Equity Distribution Agreement with JMP Securities LLC (“JMP Securities”), pursuant to which we may offer and sell ordinary shares having an aggregate offering price of up to $40,000,000 from time to time through JMP Securities, acting as agent. During the year ended December 31, 2020, we sold an aggregate of 1,400,000 ordinary shares under the at-the-market (“ATM”) facility for net proceeds of approximately $4.8 million after payment of fees of $147,000 to JMP Securities. As of December 31, 2020, we have approximately $26.0 million available for sale under the ATM facility.

Long-term Debt

On May 19, 2020, we entered into the $30 million Loan Agreement with Avenue, as administrative agent and collateral agent, and the lenders named therein and from time to time a party thereto (the “Lenders”). Pursuant to the terms of the Loan Agreement, our wholly-owned subsidiary Strongbridge U.S. Inc. (the “Borrower”) borrowed $10 million (the “Initial Loan”) from the Lenders at closing.  As a result of achieving positive top-line data for Recorlev in our Phase 3 LOGICS clinical trial in September 2020, we were eligible to and did borrow an additional $10 million under the Loan Agreement (the “Second Loan”), on December 30, 2020. The remaining $10 million tranche (the “Third Loan”) will become available to us between October 1, 2021 and March 31, 2022 if we achieve FDA approval of Recorlev and subject to Avenue’s investment committee approval.  

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Cash Flows

Comparison for the Years Ended December 31, 2020 and 2019:

Operating Activities

Net cash used in operating activities was $38.1 million for the year ended December 31, 2020 compared to $44.8 million for the year ended December 31, 2019. The decrease in net cash used in operating activities resulted primarily from an increase in total revenues of $9.0 million and reduced expenditures.

Investing Activities

The increase in net cash provided by investing activities resulted from the maturities of our marketable securities.

Financing Activities

The increase in net cash provided by financing activities was due to our receipt of $23.8 million in proceeds from our September 2020 public equity offering, $4.8 million in proceeds received from sales under our ATM facility and $19.3 million in funds received under our Term Loan Agreement with Avenue Venture Opportunities Fund L.P. (“Avenue”).

Off-Balance Sheet Arrangements

We do not have variable interests in variable interest entities or any off-balance sheet arrangements.

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may become inadequate due to changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Attestation Report of the Registered Public Accounting Firm

This Annual Report does not include an attestation report of our registered public accounting firm regarding our internal control over financial reporting. Management’s report was not subject to attestation by our registered public accounting firm pursuant to the rules of the SEC that permit us to provide only management’s report in this Annual Report for so long as we qualify as a “non-accelerated” filer.

Changes in Internal Control over Financial Reporting

There were no changes in the Company's internal control over financial reporting that occurred during the period covered by this Annual Report that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

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served as the President and Chief Executive Officer of Dendreon Corporation and as its Chairman from January 2012 until June 2014. From January 2011 until January 2012, he served as the Chief Executive Officer and a member of the board of Savient Pharmaceuticals, Inc. From November 2008 until January 2011, Mr. Johnson served as Senior Vice President and President of Eli Lilly and Company’s Oncology unit. He was also Chief Executive Officer of ImClone Systems Incorporated, which develops targeted biologic cancer treatments, from August 2007 until November 2008, and served on ImClone’s board of directors until it was acquired by Eli Lilly in November 2008. From 2005 to 2007, Mr. Johnson served as Company Group Chairman of Johnson & Johnson’s Worldwide Biopharmaceuticals unit, President of its Ortho Biotech Products LP and Ortho Biotech Canada units from 2003 to 2005, and Worldwide Vice President of its CNS, Pharmaceuticals Group Strategic unit from 2001 to 2003. Prior to joining Johnson & Johnson, he also held several executive positions at Parkstone Medical Information Systems, Inc., OrthoMcNeil Pharmaceutical Corporation and Pfizer, Inc. Mr. Johnson is the former Chairman of Tranzyme Pharma, Inc., former lead independent director of Sucampo Pharmaceuticals, Inc. and a former director of Histogenics Corporation, AVEO Pharmaceuticals, Inc. and Portola Pharmaceuticals, Inc. He previously served as a member of the board of directors for the Pharmaceutical Research and Manufacturers of America and the Health Section Governing Board of Biotechnology Industry Organization. Mr. Johnson holds a B.S. from the East Stroudsburg University of Pennsylvania.

Fredric Cohen, M.D. has served as our Chief Medical Officer since November 2016. Dr. Cohen joined Strongbridge in August 2015 and held roles of increasing responsibility, including Senior Vice President, Global Research and Development, and Vice President, Clinical Research and Development, prior to his promotion to Chief Medical Officer. Fred is an endocrinologist by training with approximately 25 years of drug and business development experience, most recently focused in development and commercialization of rare disease and specialty products. Prior to joining Strongbridge, Fred provided strategic and operational counsel to life science companies, actively supporting their development and licensing functions. Prior to that, he served as Executive Director, Clinical Pipeline, at Aptalis Pharma, where he was responsible for innovation strategy as well as building and advancing the company’s specialty pharma pipeline. He has also held research and development positions with Johnson & Johnson and Eli Lilly & Company. Fred holds an M.D. from Pennsylvania State University College of Medicine and an A.B. in biology from Franklin and Marshall College.

Robert Lutz has served as our Chief Financial Officer since September 2019. He previously served as our Chief Business Officer from October 2014 to September 2019. Effective March 3, 2021, Mr. Lutz has resigned from the Company. Prior to joining the Company, Mr. Lutz worked from December 2004 to April 2014 at Shire Plc, a publicly traded specialty biopharmaceutical company prior to being purchased by Takeda Pharmaceutical Company Ltd., where he most recently served as Vice President and held key leadership positions in the Specialty Pharmaceutical division. Prior to Shire Plc, Mr. Lutz worked in a variety of roles, including Vice President of Finance, for Cinergy Corp., an electric and gas utility company. Mr. Lutz also worked as a Senior Analyst at Alan B. Slifka and Co., a hedge fund, after having started his career at Goldman Sachs Group Inc., where he served as a Financial Analyst in its principal investment area. He holds a B.A. in economics and computer science from Amherst College and an M.B.A. from the Kellogg School of Management

Richard S. Kollender has served as our Chief Operating Officer since September 2019. Effective March 3, 2021 Mr. Kollender will be promoted to President and Chief Financial Officer. He previously served as a Class II director of our board of directors from March 2015 until September 2019, and was Chairman of the audit committee and a member of the compensation committee. Since January 2011, he has served as a Partner and Executive Manager of Quaker Partners Management, LP, a healthcare investment firm, which he initially joined in 2003, and was promoted to Partner in 2005. In addition, from August 2016 through September 2018, Mr. Kollender served as Chief Business Officer and Chief Financial Officer of Rapid Micro Biosystems, a Quaker Partners’ portfolio company, where he continues to serve on the board of directors. Mr. Kollender held positions in sales, marketing and worldwide business development at GlaxoSmithKline (“GSK”), and served as investment manager at S.R. One, the corporate venture capital arm of GSK. Mr. Kollender holds a B.A. in accounting from Franklin and Marshall College and an M.B.A. and a certificate degree in the Graduate Program in Health Administration and Policy, both from the University of Chicago, and practiced as a certified public accountant for six years at public accounting firms including KPMG.

Stephen Long has served as our Chief Legal Officer since March 2015 and as Company Secretary since September 2015. Prior to joining Strongbridge, Mr. Long served as Counsel at the law firm of Reed Smith LLP, from

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April 2013 to February 2015. He previously served at C.R. Bard, Inc., a medical device manufacturing company, from October 2000 to May 2012 in the roles of Vice President, General Counsel, as Vice President, and Secretary, and as Associate General Counsel. Mr. Long also served as Assistant General Counsel, Consumer Healthcare, at Warner-Lambert Company, and as Counsel for the company’s pharmaceutical division from February 1998 to September 2000. Mr. Long held positions earlier in his career at the law firm of Willkie Farr & Gallagher and Bankers Trust Company. Mr. Long received his B.S. from the School of Industrial and Labor Relations at Cornell University and his J.D. from Albany Law School of Union University.

Scott Wilhoit has served as our Chief Commercial Officer since May 2019. Mr. Wilhoit joined Strongbridge in January 2017 and held roles of increasing responsibility, including Senior Vice President, Global Market Access, Patient Services and Advocacy, prior to his promotion to Chief Commercial Officer. Mr. Wilhoit has over 30 years of industry experience, much of which has been focused on commercializing products in a variety of rare disease categories. Most recently, Mr. Wilhoit served as Vice President, Market Access and Patient Services at Marathon Pharmaceuticals, where he designed and developed the access strategy for the company’s first commercial rare disease product. Previously, Mr. Wilhoit served as Vice President, Market Access and Health Services at PTC Therapeutics leading pre-launch market access strategic planning for the company’s Duchenne Muscular Dystrophy treatment. Prior to that, he served as Vice President, Pricing, Access and Patient Services at NPS Pharmaceuticals (acquired by Shire). Mr. Wilhoit has also served in a variety of positions with increasing responsibility with Clarus Therapeutics, Auxilium Pharmaceuticals, Biovail Corporation and Johnson & Johnson. Mr. Wilhoit served as a Field Artillery Officer in the U.S. Army and holds a BS in Criminology from Missouri Western State University.

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Non-Employee Directors

David N. Gill has served as a member of our board of directors since September 2019. Mr. Gill is currently the Chief Financial Officer of Perspectum, Ltd, a healthcare technology company which transforms the clinical management of metabolic disease and cancer. Previously he served as the President and Chief Financial Officer of EndoChoice, Inc., a medical device company focused on gastrointestinal disease from April 2016 through the sale of the company to Boston Scientific in November 2016 and as Chief Financial Officer from August 2014 to April 2016. Mr. Gill also currently serves as a director of Y-mAbs Therapeutics, Inc. and Evolus, Inc., Previously he served on the board of directors of Melinta Therapeutics, Histogenics Corporation. and Strata Skin Sciences. Earlier in his career, Mr. Gill served in a variety of senior executive leadership roles for several publicly-traded and private healthcare related companies, including INC Research (now known as Syneos), TransEnterix, NxStage Medical, Inc., CTI Molecular Imaging, Inc., and Novoste Corporation. Mr. Gill holds a B.S. degree, cum laude, in Accounting from Wake Forest University and an M.B.A. degree, with honors, from Emory University, and was formerly a certified public accountant.

Qualifications: Mr. Gill has extensive experience as an executive in the medical device industry. This experience and his extensive prior and current service as a director of other public life sciences companies make him a valuable contributor to our board of directors.

Garheng Kong, M.D., Ph.D. has served as Chairman of our board of directors since July 2020, as Lead Independent Director from November 2019 through July 2020, and as a member of our board of directors since September 2015. In July 2013, he founded, and has since served as managing partner of, HealthQuest Capital, a healthcare venture growth fund. Dr. Kong was a general partner at Sofinnova Ventures, a venture firm focused on life sciences, from September 2010 to December 2013. From May 2000 to September 2010, he worked at Intersouth Partners, a venture capital firm, serving most recently as a general partner. Dr. Kong currently serves as a director of Venus Concept, Alimera Sciences, Inc. and Laboratory Corporation of America Holdings. Dr. Kong previously served on the board of directors of Histogenics Corporation, Melinta Therapeutics, Inc. and Avedro, Inc. Dr. Kong holds a B.S. from Stanford University and an M.D., Ph.D. and M.B.A. from Duke University.

Qualifications:  Dr. Kong brings to the Board extensive knowledge and experience in both the healthcare and finance fields due to his medical background and his work in life science-related venture capital firms and has significant prior board experience with both public and privately held companies.

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Jeffrey W. Sherman, M.D., FACP has served as a member of our board of directors since October 2016. Since 2009, he has served as Chief Medical Officer and Executive Vice President of Horizon Therapeutics plc. He has also served as a member of the Xeris Pharmaceuticals board of directors since April 2018. He previously held positions at IDM Pharma, Takeda Global Research and Development, NeoPharm, Searle/Pharmacia, Bristol-Myers Squibb, and is a past president of the Drug Information Association (DIA). He is a member of a number of professional societies, a diplomat of the National Board of Medical Examiners and the American Board of Internal Medicine, and also serves on the Board of Advisors of the Center for Information and Study on Clinical Research Participation (CISCRP). Dr. Sherman earned his MD from the Rosalind Franklin University of Medicine and Science/The Chicago Medical School. He completed internship, residency and chief residency programs in internal medicine at Northwestern University Feinberg School of Medicine, where he currently serves as an adjunct assistant professor and a member of the alumni board, and a fellowship program in infectious diseases at the University of California San Francisco, where he was also a research associate at the Howard Hughes Medical Institute in allergy and immunology. He received a BA in Biology from Lake Forest College.

Qualifications: With over 30 years of research, clinical development, regulatory and commercialization experience within the biopharmaceutical industry, Dr. Sherman brings critical knowledge and expertise to our board of directors relating to the development and commercialization of biopharmaceutical products.  In addition, his experience serving in senior leadership positions at multiple public biopharmaceutical companies provides him with keen insight into the issues facing these companies.

Mårten Steen, M.D., Ph.D. has served as a member of our board of directors since December 2014. Since April 2010, he has served as a Partner of HealthCap VI LP, a venture capital firm investing in life science companies. Prior to HealthCap, from February 2008 until March 2010, Dr. Steen served as director at Merck Serono SA, a biopharmaceutical company. He previously served on the boards of Ultragenyx Pharmaceutical Inc., Wilson Therapeutics AB, Altimmune, Inc. and FerroKin Biosciences. Dr. Steen holds a B.Sc. in Business Administration, an M.D., and a Ph.D. in Clinical Chemistry, all from Lund University.

Qualifications:  Dr. Steen brings extensive venture capital experience in evaluating opportunities and managing healthcare portfolio businesses as well as multiple board experiences at other biopharmaceutical companies, providing him with critical insights on the issues facing our Company.  His experience working with global business development, focusing on both product and technology licensing, is also extremely valuable to management.

Hilde H. Steineger, Ph.D. has served as a member of our board of directors since January 2014. She is currently Chief Executive Officer at Staten Biotechnology. She also serves as Chief Operations Officer and Co-founder of NorthSea Therapeutics B.V. Dr. Steineger is a board member of Nordic Nanovector ASA. Dr. Steineger previously served as Head of Strategic Innovation Management in Nutrition & Health Division of BASF, and as Head of Global Omega-3 Innovation Management at Pronova BioPharma ASA, a BASF company, from April 2013 to May 2015. From August 2007 to June 2010, Dr. Steineger was Head of Investor Relations for Pronova BioPharma and Vice President Business Development in Pronova BioPharma from November 2009 to April 2013. She previously served as a member of the board of directors of PCI Biotech AS, Afiew AS, Algeta ASA, Weifa AS, Inven2 AS, Alertis AS, Clavis Pharma ASA and Biotech Pharmacon ASA. Dr. Steineger holds an MSc in molecular biology/biotechnology and a Ph.D. in medical biochemistry, both from University of Oslo.

Qualifications:  Dr. Steineger brings extensive experience in the business/finance and life sciences areas, including as a financial analyst covering life sciences companies, as a venture capitalist at a life science venture fund and as head of business development at a leading pharmaceutical company. This broad experience from a diverse set of industries has provided Dr. Steineger with the opportunity to develop strong analytical and leadership skills which, along with her medical biochemistry background, allows her to provide valuable insight to our board of directors.

Code of Business Conduct and Ethics

Our Code of Business Conduct and Ethics is applicable to all of our directors, officers and employees and is posted on the Investors section of our website, which is located at www.strongbridgebio.com. Our Code of Business Conduct and Ethics provides that our directors, officers and employees are expected to avoid any action, position or interest that

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conflicts with the interests of our company or gives the appearance of a conflict. We expect that any amendment to this code, or any waivers of its requirements, will be disclosed on our website. Information contained on, or that can be accessed through, our website is not incorporated by reference into this document, and you should not consider information on our website to be part of this document.

Audit Committee

The current members of our audit committee are, David Gill, Hilde H. Steineger and Jeffrey Sherman, with Mr. Gill serving as chairman. Our board of directors has determined that each member of our audit committee is independent under Rule 10A-3 of the Exchange Act and the applicable listing requirements of Nasdaq, and that each member of our audit committee satisfies the other listing requirements of Nasdaq for audit committee membership. Our board of directors has also determined that two of the three members of our audit committee, Mr. Gill and Dr. Steineger, qualify as an “audit committee financial expert,” as such term is defined by the SEC, and that he or she has the requisite level of financial sophistication required by the continued listing standards of Nasdaq.

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his appointment as Chief Executive Officer in July 2020 and superseded by the employment agreement we entered into with Mr. Johnson on July 2, 2020.

Under the terms of the Executive Chairman Agreement, Mr. Johnson was paid a monthly salary of not less than $57,200 and was eligible to participate in and receive benefits under our employee benefit plans that are generally made available to our executive officers. Mr. Johnson was also granted an option to purchase 275,000 shares of common stock (the “Johnson Option”) under the Company’s 2015 Equity Compensation Plan (the “2015 Plan”), at an exercise price equal to the closing price per share of the Company’s common stock as reported on Nasdaq on the grant date. The Johnson Option will vest and become exercisable over a period of four years from the grant date, with 6.25% of the grant vesting on each of the 16 quarterly anniversaries of the grant date.

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Other Benefits

Our executive officers (including the named executive officers) are eligible to participate in our employee benefit plans on the same basis as our other employees, including our health and welfare plans and our 401(k) plan. Under our 401(k) plan, participants may elect to make both pre- and post-tax contributions to their accounts in the plan, and we match 100% of those contributions up to 4% of compensation. Our executive officers are not eligible for retirement benefits other than under our 401(k) plan. We are not required to, and have not, set aside any amounts relating to pension or retirements.

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