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Erasca Presents Promising Preliminary Phase 1/1b Monotherapy Data for ERAS-007 ERK and ERAS-601 SHP2 Inhibitors Supporting Ongoing and Future Combination Trials
23% (6/26) of patients with RAS/MAPK-altered non-CRC solid tumors and 44% (4/9) with BRAF-driven non-CRC solid tumors responded (confirmed and unconfirmed PR)
About this update from Erasca, Inc.
[{"type":"text","content":"23% (6/26) of patients with RAS/MAPK-altered non-CRC solid tumors and 44% (4/9) with BRAF-driven non-CRC solid tumors responded (confirmed and unconfirmed PR) to single agent ERAS-007 or ERAS-601 ERAS-007 and ERAS-601 had favorable safety and tolerability profiles with largely non-overlapping treatment-related adverse events that support combination development Initiation of ERAS-007 plus ERAS-601 MAPKlamp trial in RAS/MAPK-altered, including BRAF-driven, solid tumors anticipated to begin in first half of 2023 Erasca to host R&D Day today at 4:30 pm ET SAN DIEGO, Sept. 07, 2022 (GLOBE NEWSWIRE) -- Erasca, Inc. (Nasdaq: ERAS), a clinical-stage precision oncology company singularly focused on discovering, developing, and commercializing therapies for patients with RAS/MAPK pathway-driven cancers, today announced promising preliminary Phase 1/1b monotherapy data for ERK1/2 inhibitor ERAS-007 and SHP2 inhibitor ERAS-601 in BRAF-driven and RAS/MAPK-altered solid tumors. A retrospective pooled analysis of all trials evaluating ERAS-007 or ERAS-601 in advanced solid tumors was performed that included Erasca’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. “Worldwide, an estimated 5.5 million lives are at stake annually due to RAS/MAPK pathway alterations, with over 70% of unmet needs lacking approved targeted therapies. We believe the promising single agent responses and favorable safety and tolerability profiles for ERAS-007 and ERAS-601 in patient subsets are highly encouraging and further support our prioritized combination development strategy,” said Jonathan E. Lim, M.D., Erasca’s chairman, CEO, and co-founder. “These early data suggest combining ERAS-007 with the cell cycle inhibitor palbociclib may synergistically achieve tumor cell killing and overcome co...