On May 13, 2021 Repare Therapeutics Inc. ("Repare" or the "Company") (Nasdaq: RPTX), a leading clinical-stage precision oncology company enabled by its proprietary synthetic lethality approach to the discovery and development of novel therapeutics, reported financial results for the first quarter ended March 31, 2021 (Press release, Repare Therapeutics, MAY 13, 2021, View Source [SID1234579937]).

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

"We have advanced the Phase 1/2 clinical development of our ATR inhibitor RP-3500, with initial results expected from the monotherapy arm of the trial in the second half of 2021. The PARP inhibitor and RP-3500 combination arm is now recruiting," said Lloyd M. Segal, President and Chief Executive Officer of Repare. "We are pleased that the first patient has been dosed in our Phase 1 clinical trial of RP-6306, materially ahead of the timeline we disclosed at the time of our IPO last June."

First Quarter 2021 Review and Operational Updates:

Highlighted program progress and introduced PKMYT1 as synthetic-lethal target to CCNE1 and FBXW7 at RP-6306 Virtual Investor Day Event.
In April 2021, the Company highlighted pre-clinical anti-tumor activity of RP-6306, a potential first-in-class small molecule product candidate targeting PKMYT1, which is synthetic lethal with CCNE1 amplification, FBXW7 loss, and potentially other genomic alterations.
Announced enrollment of first patient in RP-6306 Phase 1 clinical trial.
In April 2021, the Company dosed the first patient in its Phase 1 clinical trial of RP-6306.
The trial (NCT04855656) is expected to enroll approximately 60 patients with recurrent tumors characterized by genomic alterations predicted by the Company’s SNIPRx CRISPR-based platform to be sensitive to RP-6306.
The trial objectives include assessment of safety, tolerability, dose and schedule (including the establishment of a recommended Phase 2 dose).
Subject to completion and review of the Phase 1 clinical trial, the Company expects to advance RP-6306, both as monotherapy and in combination with chemotherapies and other agents, into proof-of-concept trials in 2022 targeting a variety of patient populations, including those with tumors with CCNE1 amplification, FBXW7 loss or other undisclosed alterations identified through its proprietary STEP2 screen.
Prospective enrichment of patient trial populations will be guided by the Company’s ongoing efforts to develop patient selection, target engagement and functional biomarkers.
Initiated patient recruitment of PARP-inhibitor combination arm of the RP-3500 TRESR Phase 1/2 clinical trial.
Repare has activated 10 clinical trial sites across North America and Europe, and is actively recruiting patients to evaluate RP-3500 in a combination arm with Pfizer’s PARP inhibitor, talazoparib, in addition to a monotherapy arm.
Initial results are expected to be reported from the monotherapy arm of the trial in the second half of 2021.
First Quarter 2021 Financial Results:

Cash and cash equivalents, restricted cash and marketable securities: Cash and cash equivalents, restricted cash and marketable securities as of March 31, 2021 were $319.1 million.
Research and development expenses, net of tax credits (Net R&D): Net R&D expenses were $16.5 million and $8.6 million for the quarters ended March 31, 2021 and 2020, respectively. The increase in R&D expenses year-over-year was primarily due to increases in development costs related to the Company’s RP-3500 and RP-6306 programs, as well as increases in personnel related expenses, including stock-based compensation, and certain other R&D expenses.
General and administrative (G&A) expenses: G&A expenses were $5.2 million and $2.2 million for the quarters ended March 31, 2021 and 2020, respectively. The increase in G&A expenses year-over-year was due to increases in personnel related costs, including stock-based compensation, and D&O insurance which increased as a result of the Company’s transition to a public company.
Net loss: Net loss was $21.4 million, or $0.58 per share in the quarter ended March 31, 2021 and $12.6 million, or $7.71 per share, in the quarter ended March 31, 2020.
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.