Exhibit 99.1

OBSEVA SA

INDEX TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The accompanying notes form an integral part of these condensed consolidated financial statements.

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The accompanying notes form an integral part of these condensed consolidated financial statements.

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The accompanying notes form an integral part of these condensed consolidated financial statements.

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The accompanying notes form an integral part of these condensed consolidated financial statements.

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ObsEva SA

Condensed Consolidated Financial Statements

Exhibit 99.2

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION

AND RESULTS OF OPERATIONS

Overview

We are a clinical-stage biopharmaceutical company focused on the development and commercialization of novel therapeutics for serious conditions that compromise a woman’s reproductive health and pregnancy. We are focused on providing therapeutic solutions for women between the ages of 15 and 49 who suffer from reproductive health conditions that affect their quality of life, ability to conceive or that complicate pregnancy and the health of newborns. Our goal is to build the leading women’s reproductive health and pregnancy company focused on conditions where current treatment options are limited and significant unmet needs exist.

Linzagolix for the treatment of pain associated with endometriosis and heavy menstrual bleeding associated with uterine fibroids.

We are developing linzagolix as a novel, oral gonadotropin releasing hormone, or GnRH, receptor antagonist, for the treatment of pain associated with endometriosis and heavy menstrual bleeding associated with uterine fibroids in pre-menopausal women. Aimed at addressing the need of the largest possible population in each indication, our clinical trials for both of these indications are designed to assess and potentially support the registration of two regimens of administrations for linzagolix i.e. (i) a moderate dose of linzagolix without hormonal add-back therapy (ABT) and (ii) a high dose of linzagolix with hormonal ABT.

In 2018 we successfully completed a 24-week treatment of 330-patient multiple-dose, placebo-controlled Phase 2b EDELWEISS clinical trial of linzagolix in endometriosis patients across 70 sites in the United States and 15 sites in Central and Eastern Europe. Results support efficacy in treating pelvic pain associated with endometriosis as well as bone mineral density (BMD) safety. We believe the BMD results support our plan to pursue further development of two doses of linzagolix for the treatment of endometriosis, including a 75 mg once daily dose without low dose ABT, and a 200 mg once daily dose in combination with low dose ABT. We recently completed 52 weeks of treatment in the EDELWEISS trial. These results were consistent with the positive primary findings from the trial that were disclosed in 2018. Following an End-of-Phase 2 meeting with the U.S. Food and Drug Administration ( FDA) in December 2018 to discuss the Phase 3 clinical development plan we are presently initiating the EDELWEISS 2 and EDELWEISS 3 clinical trials.

In addition, we are conducting two Phase 3 clinical trials of linzagolix in patients with heavy menstrual bleeding associated with uterine fibroids, the PRIMROSE clinical trials. The PRIMROSE clinical trials each have a target enrollment of approximately 500 patients and are being conducted in the United States and in Europe. We announced that the PRIMROSE 2 trial, conducted in the United States and in Europe, completed patient recruitment in December 2018, and we expect the PRIMROSE 1 trial being conducted in the United States to complete patient recruitment in the second quarter of 2019. We expect to report primary endpoint results following 24 weeks of treatment from the PRIMROSE 1 and 2 clinical trials in the first quarter of 2020 and fourth quarter of 2019, respectively, with a new drug application (NDA) submission with the FDA based on 52 weeks of treatment duration in both trials, planned prior to the end of 2020.

Nolasiban to improve IVF outcomes.

We are developing nolasiban, an oral oxytocin receptor antagonist, to improve clinical pregnancy and live birth rates in women undergoing in-vitro fertilization, or IVF. In 2018, we reported positive results for the primary endpoint of ongoing pregnancy 10 weeks post embryo transfer and the secondary endpoint of live birth rate from the European Phase 3 clinical trial in 778 women undergoing IVF, or the IMPLANT 2 clinical trial.

Nolasiban was observed to be well tolerated with a safety profile not different from placebo. Safety follow-up for 28-day neonates and infants 6 months following birth from the IMPLANT 2 trial did not reveal any adverse consequences from nolasiban treatment.

Based on feedback received in the third quarter of 2018 from regulatory authorities in Europe on our nolasiban development program, we initiated in November 2018 an additional Phase 3 trial primarily in European, Canadian and CIS or Russian centers, or the IMPLANT 4 trial. The IMPLANT 4 trial will enroll approximately 800 patients, with the primary endpoint readout (10-week ongoing pregnancy results) expected in the fourth quarter of 2019, with the filing of a Marketing Authorization Application (MAA) in Europe being planned for late 2019. In late 2018, we hired a chief commercial officer to begin the planning and execution of the commercialization of nolasiban in anticipation for potential initial commercial launch in early 2021.

For U.S. clinical development of nolasiban, we are presently in the process of further interactions with the FDA on trial design, and expect to provide updated feedback by the end of the second quarter of 2019. We have also begun strategic assessment of nolasiban for the large market opportunity of China, exploring the clinical trial pathway and potential options for commercialization.  

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OBE022 for the treatment of preterm labor

We are developing OBE022, an oral and selective prostaglandin F2α receptor antagonist, for preterm labor in weeks 24 to 34 of pregnancy. In December 2017, we announced the initiation of a Phase 2a proof-of-concept clinical trial of OBE022, known as PROLONG which is being conducted in two parts: Part A and Part B.

Part A is an open-label trial assessing the safety and pharmacokinetics of OBE022 administered to pregnant women, who are receiving standard of care therapy for preterm labor, atosiban infusion. Part B is a randomized, double-blind, placebo-controlled, parallel-group trial to assess the efficacy, safety and pharmacokinetics of OBE022. In December 2018, following completion of the open-label Part A and based on the favorable safety and pharmacokinetics results, we announced the initiation of the randomized placebo-controlled Part B of the trial. Part B will enroll up to 120 women at 24-34 weeks gestation who are experiencing preterm labor symptoms and are receiving standard of care. Patients will be randomized to OBE022 or placebo. We expect initial interim efficacy results to be available from the first 30 patients in the second quarter of 2019.

We were founded in November 2012 and our operations to date have included organizing and staffing our company, raising capital, in-licensing rights to linzagolix, nolasiban and OBE022 and conducting nonclinical studies and clinical trials. To date, we have not generated any revenue from product sales as none of our product candidates have been approved for commercialization. We have historically financed our operations exclusively through the sale of equity. To date, we have raised an aggregate of $330.6 million of net proceeds from the sale of equity securities.

We have never been profitable and have incurred significant net losses in each period since our inception. Our net losses were $25.7 million, and $19.8 million for the three-month periods ended March 31, 2019 and 2018, respectively. As of March 31, 2019, we had accumulated losses of $240.2 million, out of which $30.6 million were offset with share premium. This reclassification transaction had no impact on total equity. We expect to continue to incur significant expenses and operating losses for the foreseeable future. We used $20.9 million and $14.8 million of cash in operations in the three-month periods ended March 31, 2019 and 2018, respectively, and we anticipate that our expenses will continue to increase significantly in connection with our ongoing activities as we:

We will need substantial additional funding to support our operating activities as we advance our product candidates through clinical development, seek regulatory approval and prepare for and invest in future commercialization of these candidates, if approved. Adequate funding may not be available to us on acceptable terms, or at all.

We have no manufacturing facilities, and all of our manufacturing activities are contracted out to third parties. We currently utilize third-party contract research organizations, or CROs, to carry out our clinical development and trials.

Strategic Licensing Agreements

Linzagolix

In November 2015, we entered into the Kissei license and supply agreement with Kissei Pharmaceutical Co., Ltd., or Kissei. Pursuant to the Kissei license and supply agreement we received an exclusive license to develop, manufacture and commercialize products, or the Product, containing the compounds which is a specified GnRH antagonist and covered by certain licensed patent rights, or the Compound, throughout the world except for specified Asian countries. We arranged to exclusively acquire from Kissei the material necessary to produce linzagolix.

In consideration for the license, we made an initial $10.0 million upfront payment. In addition, we agreed to make aggregate milestone payments of up to $63.0 million upon the achievement of specified developmental milestones, such as the initiation of clinical trials and receipt of regulatory approvals. In connection with the initiation of the Phase 3 clinical program for linzagolix in uterine fibroids in the second quarter of 2017, a $5.0 million milestone was paid. With respect to any products we commercialize under the Kissei license and supply agreement, we agreed to make further payments of up to an additional $125.0 million to Kissei upon the achievement of specified commercial milestones.

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Pursuant to the Kissei license and supply agreement, we have agreed to exclusively purchase the active pharmaceutical ingredient for linzagolix from Kissei. During the development stage, we are obligated to pay Kissei a specified supply price. Following the first commercial sale of licensed product, we are obligated to pay Kissei a royalty in the low twenty percent range as a percentage of net sales . This payment includes Kissei’s supply of the active pharmaceutical ingredient until the latest of (i) the date that the valid claim of a patent for the Product has expired, (ii) the expiration of our regulatory exclusivity period , or (iii) 15 years from the first commercial sale of such product on a country-by-country and product-by-product basis. During the term, we are restricted from developing, marketing and selling GnRH agonists and GnRH antagonists other than the Compound to the extent allowed by applicable laws .

Nolasiban

In August 2013, we entered into the 2013 license agreement with Ares Trading S.A., an affiliate of Merck Serono, or Merck Serono, pursuant to which we received a worldwide exclusive license to develop, manufacture and commercialize compounds covered by the licensed patent rights, including nolasiban. In consideration for the license, we issued 914,069 Series A preferred shares to Merck Serono at the time of our Series A financing, which had a fair-value of $4.9 million based on an exchange rate of $1.00 for CHF 0.9244 as of the date of the transaction. With respect to any products we commercialize under the 2013 license agreement, we agreed to pay Merck Serono royalties based on a high-single-digit percentage of annual net sales of each product, subject to specified reductions, until the later of (i) the date that all of the patent rights for that product have expired, as determined on a country-by-country and product-by-product basis, or (ii) ten years from the first commercial sale of such product on a country-by-country and product-by-product basis .

OBE022

In June 2015, we entered into the 2015 license agreement with Merck Serono, which we amended in July 2016, pursuant to which we received a worldwide exclusive license to develop, manufacture and commercialize compounds covered by the licensed patent rights, including OBE022. In consideration for the license, we issued 325,000 Series A preferred shares to Merck Serono in September 2016 upon the initiation of a Phase 1 clinical trial for a licensed product. With respect to any products we commercialize under the 2015 license agreement, we agreed to pay Merck Serono royalties based on a mid-single-digit percentage of annual net sales of each product, subject to specified reductions, until the later of (i) the date that all of the patent rights for that product have expired, as determined on a country-by-country and product-by-product basis or (ii) ten years from the first commercial sale of such product on a country-by-country and product-by-product basis.

Components of Results of Operations

Revenue

To date, we have not generated any revenue from product sales and we do not expect to generate revenue unless and until we successfully complete development and obtain regulatory approval for one of our product candidates.

Operating Expenses

Research and Development Expenses

Research and development expenses consist primarily of costs incurred in connection with our research and development activities and consist mainly of direct research and development costs, which include: costs associated with the use of CROs and consultants hired to assist on our research and development activities; personnel expenses, which include salaries, benefits and share-based compensation expenses for our employees; expenses related to regulatory affairs and intellectual property; manufacturing costs in connection with conducting nonclinical studies and clinical trials; and depreciation expense for assets used in research and development activities. Research and development costs are generally expensed as incurred. However, costs for certain activities, such as manufacturing and nonclinical studies and clinical trials, are generally recognized based on an evaluation of the progress to completion of specific tasks using information and data provided to us by our vendors and collaborators.

Our employee, consultant and infrastructure resources are typically utilized across our multiple research and development programs. We track outsourced research and development costs by product candidate or nonclinical program, but we do not allocate personnel costs, other internal costs or external consultant costs to specific product candidates.

From inception through March 31, 2019, we have incurred $192.7 million in research and development expenses to advance the development of our product candidates. The following table provides a breakdown of our outsourced research and development expenses that are directly attributable to the specified product candidates for the three-month periods ended March 31, 2019 and March 31, 2018, respectively.

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We expect our research and development expense will increase for the foreseeable future as we seek to advance the development of our product candidates through clinical trials and toward regulatory submissions. At this time, we cannot reasonably estimate or know the nature, timing and estimated costs of the efforts that will be necessary to complete the development of our product candidates. We are also unable to predict when, if ever, material net cash inflows will commence from sales of our product candidates. This is due to the numerous risks and uncertainties associated with developing such product candidates, including:

In addition, the probability of success for any of our product candidates will depend on numerous factors, including competition, manufacturing capability and commercial viability. A change in the outcome of any of these variables with respect to the development of any of our product candidates would significantly change the costs, timing and viability associated with the development of that product candidate.

General and Administrative Expenses

General and administrative expenses consist primarily of personnel expenses, including salaries, benefits and share-based compensation expense, related to executive, finance, accounting, business development, legal and human resource functions. General and administrative expense also includes facility costs not otherwise included in research and development expenses, legal fees related to corporate matters, fees for accounting and consulting services (including pre-commercialization activities), and costs of director and officer insurance.

We anticipate that our general and administrative expense will increase in the future to support continued research and development activities and to set-up our pre-commercialization structure. We also anticipate that we will incur increased accounting, audit, legal, regulatory and compliance costs, as well as investor and public relations expenses, associated with operating as a public company.

Finance Result, Net

Finance result, net, consists mainly of interest income and expense derived from our cash and cash equivalents and foreign exchange gains and losses.

Taxation

We are subject to corporate taxation in Switzerland, Ireland and the United States.

In 2015, the Canton of Geneva granted us a ten year tax holiday for all income and capital taxes on a communal and cantonal level commencing in fiscal year 2013 and valid through to 2022, subject to our Swiss domiciliation and compliance with certain reporting provisions. We remain subject to Swiss federal income tax on our profits after tax but have only incurred net losses since our inception. We are entitled under Swiss laws to carry forward any losses incurred for a period of seven years and can offset such losses carried forward against future taxes. As of December 31, 2018, we had tax loss carryforwards totaling $184.2 million. We do not believe it is probable that we will generate sufficient profits to avail ourselves of these tax loss carryforwards.

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Our Irish subsidiary had no activity in the three-month periods ended March 31, 2019 and March 31, 2018 , and our U.S. subsidiary, as a service organization to the group under cost plus arrangement, was the only entity to generate income tax expenses during these periods .

Research and development expenses increased by $3.8 million in the three-month period ended March 31, 2019 compared to the three-month period ended March 31, 2018 primarily due to increased costs related to nolasiban and the progress made in our IMPLANT 4 clinical trial (including cost of supplies).

General and administrative expenses in the three-month period ended March 31, 2019 increased by $1.6 million compared to the three-month period ended March 31, 2018, primarily due to increased staff costs of $0.9 million associated with increased headcount, as well as higher professional fees of $0.8 million resulting from increased efforts in communication and building our commercial strategy and organization.

Finance result, net in the three-month periods ended March 31, 2019 and March 31, 2018 primarily consisted of foreign exchange loss and gain, respectively.

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Liquidity and Capital Resources

Since our inception, we have not generated any revenue and have incurred net losses and negative cash flows from our operations. We have funded our operations primarily through the sale of equity. From inception through March 31, 2019, we have raised an aggregate of $330.6 million of net proceeds from the sale of equity securities.

In May 2018, we sold 1,600,851 treasury shares at a price of $12.50 per share as part of our ATM program, receiving net proceeds of $19.4 million after deducting $0.6 million of directly related issuance costs. Later in June 2018, we completed a follow-on public offering of common shares and issued 4,750,000 shares at a price of $15.39 per share, raising $67.8 million in net proceeds after deducting $5.3 million of underwriting discounts, commissions and other offering expenses. In July 2018, we raised additional funds for a net amount of $4.4 million from the exercise of the green-shoe option available with the follow-on offering.

As of March 31, 2019, we had $117.3 million in cash and cash equivalents.

Our primary uses of cash are to fund operating expenses, primarily research and development expenditures. Cash used to fund operating expenses is impacted by the timing of when we pay these expenses, as reflected in the change in our outstanding accounts payable and accrued expenses. We currently have no ongoing material financing commitments, such as lines of credit or guarantees.

We expect our expenses to increase in connection with our ongoing activities, particularly as we continue the research and development of, continue or initiate clinical trials of, and seek marketing approval for, our product candidates. In addition, if we obtain marketing approval for any of our product candidates, we expect to incur significant commercialization expenses related to program sales, marketing, manufacturing and distribution to the extent that such sales, marketing and distribution are not the responsibility of potential collaborators. Furthermore, we expect to continue to incur additional costs associated with operating as a public company. Accordingly, we will need to obtain substantial additional funding in connection with our continuing operations. If we are unable to raise capital when needed or on attractive terms, we could be forced to delay, reduce or eliminate our research and development programs or future commercialization efforts.

We expect our existing cash and cash equivalents will enable us to fund our operating expenses and capital expenditure requirements into the second quarter of 2020. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we currently expect. Our future capital requirements will depend on many factors, including:

Identifying potential product candidates and conducting nonclinical studies and clinical trials is a time-consuming, expensive and uncertain process that takes many years to complete, and we may never generate the necessary data or results required to obtain marketing approval and achieve product sales. In addition, our product candidates, if approved, may not achieve commercial success. Our revenue, if any, will be derived from sales of products that we do not expect to be commercially available for many years, if at all.

Until such time that we can generate substantial product revenue, if ever, we may finance our cash needs through a combination of equity offerings, debt financings, collaborations, strategic alliances and licensing arrangements.

To the extent that we raise additional capital through the sale of equity or convertible debt securities, shareholder ownership interest may be diluted, and the terms of any additional securities may include liquidation or other preferences that adversely affect the rights of shareholders. Debt financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends.

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If we raise funds through additional collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates, or to grant licenses on terms that may not be favorable to us .

If we are unable to raise additional funds through equity or debt financings 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.

The following table shows a summary of our cash flows for the three-month periods ended March 31, 2019 and March 31, 2018:

Operating Activities

Net cash used in operating activities consists of net loss before tax adjusted for changes in net working capital, that is current assets less current liabilities, and for non-cash items such as depreciation and amortization and the value of share-based services.

During the three-month period ended March 31, 2019, cash used in operating activities was $20.9 million, primarily as the result of our net loss before tax of $25.7 million, as adjusted for non-cash items and changes in the net working capital. Non-cash items amounted to $3.8 million and mainly consisted of share-based payments. Changes in the net working capital included primarily a $0.9 million increase in other payables and current liabilities mainly due to the invoice phasing of certain Phase 1 and non-clinical studies.

During the three-month period ended March 31, 2018, cash used in operating activities was $14.8 million, primarily as the result of our net loss before tax of $19.8 million, as adjusted for non-cash items and changes in the net working capital. Non-cash items amounted to $2.3 million and mainly consisted of share-based payments. Changes in the net working capital included primarily a $4.3 million increase in accrued expenses, mainly due to the costs of our PRIMROSE clinical trials and CMC formulation development costs for nolasiban, and a $1.2 million decrease in other payables and current liabilities mainly due to the invoice phasing for our clinical trials with linzagolix.

Investing Activities

During the three-month periods ended March 31, 2019, and March 31, 2018, net cash used in investing activities consisted primarily of investments in leasehold improvements, furniture and fixtures.

Financing Activities

During the three-month period ended March 31, 2019, net cash used in financing activities consisted primarily of the principal elements of lease payments and associated interest expense, as a result of the adoption of the new lease standard, net of proceeds from the exercise of stock options.

During the three-month period ended March 31, 2018, net cash used in financing activities consisted primarily of final payments made in relation with our private placement in October 2017, including mainly a 1% Swiss stamp tax due on the amount of gross proceeds.

Main Contractual Obligations and Commitments

Under our license agreements with Kissei and Merck Serono, we may be required to pay royalties in the future. In addition, pursuant to the Kissei license and supply agreement, we have agreed to make aggregate milestone payments of up to $63.0 million upon the achievement of specified developmental milestones, such as the initiation of clinical trials and receipt of regulatory approvals, out of which $5.0 million were already paid as of March 31, 2019. With respect to any product we commercialize under the Kissei license and supply agreement, we have agreed to make additional aggregate milestone payments of up to $125.0 million to Kissei upon the achievement of specified commercial milestones.

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We enter into contracts in the normal course of business with CROs for clinical trials, nonclinical studies, manufacturing and other services and products for operating purposes. These contracts generally provide for termination upon notice, and we believe that our non-cancelable obligations under these agreements are not material .

Off-Balance Sheet Arrangements

As of the date of this discussion and analysis, and during the periods presented, we did not have any off-balance sheet arrangements.

Critical Accounting Policies and Significant Judgments and Estimates

Our management’s discussion and analysis of our financial condition and results of operations is based on our consolidated interim financial statements, which we have prepared in accordance with International Accounting Standard 34 Interim Financial Reporting as issued by the International Accounting Standards Board.

With the exception of the recent accounting pronouncements described below, the accounting policies used in the preparation and presentation of these consolidated interim financial statements are consistent with those used in the consolidated financial statements for the year ended December 31, 2018, which should be read in conjunction with these consolidated interim financial statements and management’s discussion and analysis as they provide an update of previously reported information.

The preparation of our consolidated interim financial statements requires us to make estimates and assumptions that affect the reported amounts of revenues, expenses, assets, liabilities and disclosure of contingent liabilities at the date of the interim financial statements. We base our estimates and assumptions on historical experience and other factors that we believe to be reasonable under the circumstances. We evaluate our estimates and assumptions on an ongoing basis. Our actual results may differ from these estimates.

Recent Accounting Pronouncements

On January 1, 2019, IFRS 16 Leases became effective and as a result of this new adoption, we recognized right-of-use assets and lease liabilities of $2.7 million, as further detailed in note 2.1 of our condensed consolidated interim financial statements.

The adoption of other IFRS standards as issued by the IASB and interpretations issued by the IFRS interpretations committee that are effective for the first time for the financial year beginning on or after January 1, 2019 had no material impact on our financial position.

JOBS Act Exemption

In April 2012, the Jumpstart Our Business Startups Act of 2012, or the JOBS Act, was enacted. Section 107 of the JOBS Act provides that an “emerging growth company” can take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act of 1933, as amended for complying with new or revised accounting standards. Thus, an emerging growth company can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have irrevocably elected not to avail ourselves of this extended transition period and, as a result, we will adopt new or revised accounting standards on the relevant dates on which adoption of such standards is required for other public companies.

As an emerging growth company, subject to certain conditions, we are relying on certain of exemptions under the JOBS Act, including without limitation, (1) providing an auditor’s attestation report on our system of internal controls over financial reporting pursuant to Section 404(b) of the Sarbanes-Oxley Act and (2) complying with any requirement that may be adopted by the Public Company Accounting Oversight Board regarding mandatory audit firm rotation or a supplement to the auditor’s report providing additional information about the audit and the financial statements, known as the auditor discussion and analysis. We will remain an emerging growth company until the earlier to occur of (1) the last day of the fiscal year (a) following the fifth anniversary of the completion of this offering, (b) in which we have total annual gross revenues of at least $1.07 billion or (c) in which we are deemed to be a “large accelerated filer” under the rules of the U.S. Securities and Exchange Commission, which means the market value of our common shares that is held by non-affiliates exceeds $700 million as of the prior June 30, and (2) the date on which we have issued more than $1.0 billion in non-convertible debt during the prior three-year period. As of March 31, 2019, none of these criteria are met by the Company.

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Cautionary Statement Regarding Forward-Looking Statements

Forward-looking statements appear in a number of places in this discussion and analysis and include, but are not limited to, statements regarding our intent, belief or current expectations. Many of the forward-looking statements contained in this discussion and analysis can be identified by the use of forward-looking words such as “anticipate”, “believe”, “continue”, “could”, “estimate”, “expect”, “intend”, “may”, “might”, “ongoing”, “objective”, “plan”, “potential”, “predict”, “should”, “will” and “would”, or the negative of these and similar expressions. Forward-looking statements are based on our management’s beliefs and assumptions and on information currently available to our management. Such statements are subject to risks and uncertainties, and actual results may differ materially from those expressed or implied in the forward-looking statements due to various factors, including, but not limited to, those identified under the section entitled “Item 3.D—Risk Factors” in the Annual Report on Form 20-F for the year ended December 31, 2018, or the Annual Report, filed with the U.S. Securities and Exchange Commission, or the SEC, pursuant to the U.S. Securities and Exchange Act of 1934, as amended. These risks and uncertainties include factors relating to:

Forward-looking statements speak only as of the date they are made, and we do not undertake any obligation to update them in light of new information or future developments or to release publicly any revisions to these statements in order to reflect later events or circumstances or to reflect the occurrence of unanticipated events.

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Exhibit 99.3

ObsEva Reports First Quarter 2019 Financial Results

2019 Phase 3 Data Readouts on track for nolasiban in IVF and linzagolix in uterine fibroids; MAA submission for nolasiban IVF therapy targeted by year-end

GENEVA, Switzerland and BOSTON, MA. (May 9, 2019) – ObsEva SA (NASDAQ: OBSV / SIX: OBSN) , a clinical-stage biopharmaceutical company focused on the development and commercialization of novel therapeutics for serious conditions that compromise a woman’s reproductive health and pregnancy, today reported financial results for the first quarter ending March 31, 2019 and provided a business update.

Recent Highlights

Nolasiban to improve IVF outcomes

Linzagolix for the treatment of endometriosis associated pain and heavy menstrual bleeding due to uterine fibroids

OBE022 for the treatment of preterm labor

“We are thrilled with our progress this past quarter as we advanced all three of our Phase 3 clinical programs, and have initiated two Phase 3 trials for endometriosis this year.  2019 is a transformational year for us as we work toward the MAA filing of nolasiban later this year. We are excited about developing our commercial capabilities in anticipation of a planned European launch in 2021,” said Ernest Loumaye, co-founder and Chief Executive Officer of ObsEva.

2019 Milestones

ObsEva expects to achieve the following clinical and regulatory milestones in 2019:

Nolasiban

Linzagolix

OBE022

First Quarter 2019 Financial Results

Net loss for the first quarter of 2019 was $25.7 million, or $0.59 per share, compared with a net loss of $19.8 million, or $0.54 per share, for the first quarter of 2018.  Research and development expenses were $20.1 million and general and administrative expenses were $5.3 million for the first quarter of 2019, compared with $16.3 million and $3.6 million, respectively, for the first quarter of 2018.  The net loss for

the first quarter of 2019 included non-cash expenses of $ 3.3 million for stock -based compensation, compared with $2.4 million in the prior -year period .

As of March 31, 2019, ObsEva had cash and cash equivalents of $117.3 million, compared with $138.6 million as of December 31, 2018.

Conference Call

ObsEva will host a conference call and audio webcast today beginning at 8:00 a.m. Eastern Time/2:00 p.m. Central European Time, to provide a business update and discuss the first quarter results.  Investors may participate by dialing (844) 419-1772 for U.S. callers or (213) 660-0921 for international callers and referring to conference ID 9375906.  A webcast of the conference call can be accessed under the “Investors” section of ObsEva’s website www.obseva.com .

About ObsEva

ObsEva is a clinical-stage biopharmaceutical company focused on the clinical development and commercialization of novel therapeutics for serious conditions that compromise a woman's reproductive health and pregnancy. Through strategic in-licensing and disciplined drug development, ObsEva has established a late-stage clinical pipeline with development programs focused on treating endometriosis, uterine fibroids, preterm labor and improving IVF outcomes. ObsEva is listed on the Nasdaq Global Select Market and is trading under the ticker symbol "OBSV" and on the SIX Swiss Exchange where it is trading under the ticker symbol “OBSN”. For more information, please visit www.ObsEva.com .

Cautionary Note Regarding Forward-Looking Statements

Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. These statements may be identified by words such as "believe", "expect", "may", "plan," "potential," "will," and similar expressions, and are based on ObsEva’s current beliefs and expectations. These forward-looking statements include expectations regarding the clinical development of ObsEva’s product candidates, the timing of enrollment in and data from clinical trials and the results of interactions with regulatory authorities. These statements involve risks and uncertainties that could cause actual results to differ materially from those reflected in such statements. Risks and uncertainties that may cause actual results to differ materially include uncertainties inherent in the conduct of clinical trials, clinical development and related interactions with regulators, ObsEva’s reliance on third parties over which it may not always have full control, and other risks and uncertainties that are described in the Risk Factors section of ObsEva’s Annual Report on Form 20-F for the year ended December 31, 2018, and other filings ObsEva makes with the SEC. These documents are available on the Investors page of ObsEva’s website at http://www.obseva.com . Any forward-looking statements speak only as of the date of this press release and are based on information available to ObsEva as of the date of this release, and ObsEva assumes no obligation to, and does not intend to, update any forward-looking statements, whether as a result of new information, future events or otherwise.

For further information, please contact:

Media Contact Switzerland and Europe:

Christophe Lamps

Dynamics Group

cla@dynamicsgroup.ch

+41 22 308 6220 Office

+41 79 476 26 87 Mobile

Media Contact U.S.:

Marion Janic

RooneyPartners LLC

mjanic@rooneyco.com

+1 212 223 4017 Office

+1 646 537 5649 Mobile

CEO Office Contact:

Shauna Dillon

Shauna.dillon@obseva.ch

+41 22 552 1550

Investor Contact:

Mario Corso

Senior Director, Investor Relations

mario.corso@obseva.com

+1 857 972 9347 Office

+1 781 366 5726 Mobile

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