Company: ERAS
Filing Date: 2025-03-20
Form Type: 10-K
Source: 0000950170-25-042682
Chunk: 2

Company: Erasca, Inc.
Filing Date: 2025-03-20
Form: 10-K
Item: Item 1
Chunk 2
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 nodes to shut down the RAS/MAPK pathway. We intend to study these agents either alone or in rational combinations across multiple relevant tumor types. The following table summarizes our current modality-agnostic pipeline to eradicate RAS/MAPK pathway-driven cancers.

Our pipeline also includes ERAS-801, a brain-penetrant EGFR inhibitor in development for patients with EGFR-altered recurrent glioblastoma (GBM) (for which we are concluding a Phase 1 trial and exploring further advancement, including via partnerships and investigator-sponsored trials), ERAS-007 ERK1/2 inhibitor, and ERAS-601 SHP2 inhibitor. ERAS-007 and ERAS-601 are being assessed in preclinical studies as potential combination partners with other programs in our pipeline for RAS/MAPK pathway inhibition. Via Erasca Ventures, LLC (Erasca Ventures), we made an equity investment in Affini-T Therapeutics, Inc. (Affini-T), which is developing TCR T-cell therapies against KRAS G12V, KRAS G12D, and KRAS G12C.

Our lead product candidate is naporafenib, for which we initiated our SEACRAFT-2 pivotal Phase 3 trial in the first half of 2024 for patients with NRAS-mutated (NRASm) melanoma. In October 2024, we announced promising preliminary data from our SEACRAFT-1 Phase 1b trial for patients with NRAS Q61X melanoma in an oral presentation at the 36th EORTC-NCI-AACR (ENA) Symposium (2024 Triple Meeting). Naporafenib is a pan-RAF inhibitor with first-in-class and best-in-class potential for patients with NRASm melanoma and other RAS/MAPK pathway-driven tumors. RAF proteins are ubiquitously expressed serine-threonine kinases that constitute a key node of the RAS/MAPK pathway downstream of RAS and upstream of MEK. The RAF protein family consists of ARAF, BRAF, and CRAF (RAF1) that are activated 

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through dimerization. Mutations in RAF proteins have been observed in many cancers, such as melanoma, colorectal cancer (CRC), non-small cell lung cancer (NSCLC), and thyroid cancer. We in-licensed naporafenib from Novartis Pharma AG (Novartis) in December 2022. Naporafenib has