Repare Therapeutics Inc. (“Repare” or the “Company”) (Nasdaq: RPTX), a leading clinical-stage precision oncology company, today reported financial results for the second quarter ended June 30, 2022.

“The worldwide license and collaboration agreement we signed with Roche this quarter represents a major step in the broad global development and commercialization of camonsertib, and validates our strategy to build value into our pipeline by developing innovative drugs that target specific synthetic-lethal genomic alterations as we recently demonstrated at AACR,” said Lloyd M. Segal, President and Chief Executive Officer of Repare. “We have made substantial progress in our Phase 1 clinical trial evaluating RP-6306 as a monotherapy and in combination with camonsertib and two chemotherapy agents for the treatment of molecularly selected advanced solid tumors. We have also advanced our polymerase theta inhibitor, RP-2119, to IND-enabling studies. We look forward to providing an initial clinical data readout from the Phase 1 RP-6306 trial in the first half of 2023.”

Second Quarter 2022 Review and Operational Updates:

• Announced closing of its worldwide license and collaboration agreement with Roche for the development and commercialization of camonsertib (also known as RP-3500), a potent and selective oral small molecule inhibitor of ATR (Ataxia-Telangiectasia and Rad3-related protein kinase) for the treatment of tumors with specific synthetic-lethal genomic alterations.
  • In connection with the closing of the collaboration agreement, Repare received an upfront payment of $125 million from Roche in July 2022.
  • Under the collaboration, Roche will assume the development of camonsertib with the potential to expand development into additional tumor indications and multiple combination studies.
  • In addition to the $125 million upfront payment, Repare is eligible to receive up to $1.172 billion in potential clinical, regulatory, commercial and sales milestones, including up to $55 million in potential near-term payments, and royalties on global net sales ranging from high-single-digits to high-teens. The collaboration also provides Repare with the ability to opt-in to a 50/50 U.S. co-development and profit share arrangement, including participation in U.S. co-promotion if U.S. regulatory approval is received. If Repare chooses to exercise its co-development and profit share option, it will continue to be eligible to receive certain clinical, regulatory, commercial and sales milestone payments, in addition to full ex-U.S. royalties.
• Advanced RP-6306, a first-in-class, oral PKMYT1 inhibitor as a monotherapy and in combinations
  • Phase 1 clinical trials are currently evaluating RP-6306 as a monotherapy (MYTHIC) as well as in combination with gemcitabine (MAGNETIC) for the treatment of molecularly selected advanced solid tumors. In January 2022, the Company initiated an additional Phase 1 clinical trial of RP-6306 in combination with FOLFIRI (MINOTAUR), also for the treatment of molecularly selected advanced solid tumors.
  • In May 2022, Repare initiated patient recruitment in a new arm of the Phase 1 MYTHIC clinical trial, which is designed to evaluate the safety and tolerability of RP-6306 in combination with camonsertib in patients with advanced solid tumors.
  • Initial Phase 1 clinical data readout for RP-6306 is now expected in the first half of 2023 for monotherapy (previously expected in the second half 2022) and potentially for combination therapies, due to disruptions in global trial site activation and enrollment resulting from the ongoing COVID-19 pandemic, as well as an expanded requirement for dose escalations that are ongoing.
• Initiated IND-enabling studies for Repare's Polθ inhibitor (now designated RP-2119), and plan to initiate clinical trials in the summer of 2023.
• Repare also expects to initiate IND-enabling studies in the first half of 2023 for an additional small molecule against an undisclosed target.

Second Quarter 2022 Financial Results:

• Cash and cash equivalents and marketable securities: Cash and cash equivalents and marketable securities as of June 30, 2022 were $282.1 million, which excludes the $125 million now received from Roche and extends cash runway into 2026.
• Revenue: Repare recognized revenue of $0.7 million and $1.1 million for the three and six-month periods ended June 30, 2022, respectively, in connection with the Bristol Myers Squibb agreement and research activities performed.
• Research and development expenses, net of tax credits (Net R&D): Net R&D expenses were $31.5 million and $57.9 million for the three- and six-month periods ended June 30, 2022, respectively, as compared to $20.2 million and $36.7 million for the three- and six-month periods ended June 30, 2021. The increase in R&D expenses for the three- and six-month periods were primarily due to an increase in direct external costs, primarily for development activities as a result of increased efforts towards advancing the development of the RP-3500 and RP-6306 programs; personnel-related costs, primarily related to increased headcount in support of discovery and development activities; and other research and development costs.
• General and administrative (G&A) expenses: G&A expenses were $7.9 million and $16.7 million for the three- and six-month periods ended June 30, 2022, respectively, as compared to $6.7 million and $12.0 million for the three- and six-month periods ended June 30, 2021. The increase in G&A expenses for the three- and six-month periods were primarily due to increases in personnel related costs including share-based compensation; professional costs; and other general and administrative costs.
• Net loss: Net loss was $38.1 million, or $0.91 per share, and $72.9 million, or $1.74 per share, in the three- and six-month periods ended June 30, 2022, respectively, and $26.3 million, or $0.71 per share and $47.7 million, or $1.29 per share, in the three-month and six-month periods ended June 30, 2021, respectively.

About Repare Therapeutics’ SNIPRx^® Platform

Repare’s SNIPRx® platform is a genome-wide CRISPR-based screening approach that utilizes proprietary isogenic cell lines to identify novel and known synthetic lethal gene pairs and the corresponding patients who are most likely to benefit from the Company’s therapies based on the genetic profile of their tumors. Repare’s platform enables the development of precision therapeutics in patients whose tumors contain one or more genomic alterations identified by SNIPRx® screening, in order to selectively target those tumors in patients most likely to achieve clinical benefit from resulting product candidates.

About Repare Therapeutics, Inc.

Repare Therapeutics is a leading clinical-stage precision oncology company enabled by its proprietary synthetic lethality approach to the discovery and development of novel therapeutics. The Company utilizes its genome-wide, CRISPR-enabled SNIPRx® platform to systematically discover and develop highly targeted cancer therapies focused on genomic instability, including DNA damage repair. The Company’s pipeline includes camonsertib (also known as RP-3500), a potential leading ATR inhibitor currently in Phase 1/2 clinical development partnered with Roche; RP-6306, a PKMYT1 inhibitor currently in Phase 1 clinical development; RP-2119, a Polθ inhibitor program in ongoing IND-enabling studies; as well as several additional, undisclosed preclinical programs. For more information, please visit reparerx.com.

SNIPRx^® is a registered trademark of Repare Therapeutics Inc.

Forward-Looking Statement

This press release contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 and securities laws in Canada. All statements in this press release other than statements of historical facts are “forward-looking statements. These statements may be identified by words such as “aims,” “anticipates,” “believes,” “could,” “estimates,” “expects,” “forecasts,” “goal,” “intends,” “may,” “plans,” “possible,” “potential,” “seeks,” “will” and variations of these words or similar expressions that are intended to identify forward-looking statements, although not all forward-looking statements contain these words. Forward-looking statements in this press release include, but are not limited to, statements regarding: the clinical and preclinical development of the Company’s pipeline and its research and development programs, including the anticipated timing, anticipated patient enrollment or trial outcomes of its Phase 1 clinical trials of RP-6306 and its IND-enabling studies of RP-2119; the impact of COVID-19 pandemic on the trial site activation and patient enrollment in clinical trials; Repare’s collaboration with Roche, including the risk that Repare may not realize the potential benefits of this collaboration with Roche, potential milestone payments to be received under the collaboration and the discovery, development and potential commercialization of potential product candidates using Repare’s SNIPRx® platform technology under the collaboration agreement; and the Company’s anticipated cash runway guidance. These forward-looking statements are based on the Company’s expectations and assumptions as of the date of this press release. Each of these forward-looking statements involves risks and uncertainties that could cause the Company’s clinical development programs, future results or performance to differ materially from those expressed or implied by the forward-looking statements. Many factors may cause differences between current expectations and actual results, including the impacts of the COVID-19 pandemic on the Company’s business, clinical trials and financial position, unexpected safety or efficacy data observed during preclinical studies or clinical trials, clinical trial site activation or enrollment rates that are lower than expected, changes in expected or existing competition, changes in the regulatory environment, the uncertainties and timing of the regulatory approval process, and unexpected litigation or other disputes. Other factors that may cause the Company’s actual results to differ from those expressed or implied in the forward-looking statements in this press release are identified in the section titled "Risk Factors" in the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2022 filed with the Securities and Exchange Commission (“SEC”) and the Québec Autorité des Marchés Financiers ("AMF") on May 5, 2022, and its other documents subsequently filed with or furnished to the SEC and AMF, including the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2022. The Company expressly disclaims any obligation to update any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise, except as otherwise required by law.

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