ERAS Erasca Inc

Item 8.01 Other Events.

On September 7, 2022, Erasca, Inc. (the Company) announced promising preliminary data for ERAS-007 and ERAS-601 in BRAF-driven and RAS/MAPK-altered solid tumors, and held a virtual R&D Day event at which the Company presented the slide presentation attached as Exhibit 99.1 to this Current Report on Form 8-K, which is incorporated herein by reference.

A retrospective pooled analysis of all trials evaluating ERAS-007 or ERAS-601 in advanced solid tumors was performed that included the Company’s ongoing HERKULES-1 and FLAGSHP-1 trials and Asana BioSciences’ previously completed ASN007-101 trial. The analysis was designed to identify responsive subsets that were particularly sensitive to ERAS-007 or ERAS-601 for prioritized combination development within indications of high unmet medical need where no approved targeted therapies are available. Patients with solid tumors with RAS/MAPK alterations were segmented into two groups based on differing levels of responsiveness to monotherapy inhibition and differences in RAS/MAPK pathway reactivation: (1) patients with colorectal cancer (CRC); and (2) patients with non-CRC. The Company anticipates initiating a dose escalation trial for ERAS-007 in combination with ERAS-601 (the Company’s first MAPKlamp combination) in the first half of 2023.

Key findings from the retrospective pooled interim analysis of ERAS-007 and ERAS-601 include*:

Forward-Looking Statements

The Company cautions you that statements contained in this report regarding matters that are not historical facts are forward-looking statements. The forward-looking statements are based on the Company’s current beliefs and expectations and include, but are not limited to: the Company’s expectations regarding the potential therapeutic benefits of the Company’s product candidates, including ERAS-007 and ERAS-601, and their combination as part of the Company’s first MAPKlamp strategy; the Company’s expectations regarding the monotherapy data for ERAS-007 and ERAS-601 being indicative of future clinical results; the planned advancement of the Company’s development pipeline; and the anticipated date for the initiation of the ERAS-007 and ERAS-601 combination trial. Actual results may differ from those set forth in this Current Report due to the risks and uncertainties inherent in the Company’s business, including, without limitation: the retrospective analysis of pooled data covers multiple clinical trials with different designs, inclusion criteria, and dosing regimens, which cannot be directly compared, and therefore may not be a reliable indicator of efficacy and safety data; interim results of clinical trials are not necessarily indicative of final results and one or more of the clinical outcomes may materially change as patient enrollment continues, following more comprehensive reviews of the data and more patient data become available; the Company’s approach to the discovery and development of product candidates based on the Company’s singular focus on shutting down the RAS/MAPK pathway, a novel and unproven approach; delays in the Company’s preclinical and clinical development programs; the Company’s dependence on third parties to conduct manufacturing, research, and preclinical and clinical testing; unexpected adverse side effects or inadequate efficacy of the Company’s product candidates that may limit their development, regulatory approval, and/or commercialization, or may result in recalls or product liability claims; unfavorable results from preclinical studies or clinical trials; results from preclinical studies or early clinical trials not necessarily being predictive of future results; regulatory developments in the United States and foreign countries; the Company’s ability to obtain and maintain intellectual property protection for the Company’s product candidates and maintain the Company’s rights under intellectual property licenses; the Company’s ability to fund its operating plans with its current cash, cash equivalents, and marketable securities; the Company’s ability to maintain undisrupted business operations due to the COVID-19 pandemic and global geopolitical events, such as the ongoing conflict between Russia and Ukraine; unstable market and economic conditions having serious adverse consequences on the Company’s business, financial condition and stock price; and other risks described in the Company’s prior filings with the Securities and Exchange Commission (the SEC), including under the heading “Risk Factors” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021, and any subsequent filings with the SEC. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and the Company undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date hereof. All forward-looking statements are qualified in their entirety by this cautionary statement, which is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995.