Study of Elironrasib and Daraxonrasib as Monotherapies and Combination Therapy in Participants With Advanced KRAS G12C Mutant Solid Tumors

This study is to evaluate the safety, tolerability, and PK profiles of Elironrasib and Daraxonrasib as monotherapies and combination therapy in patients with KRAS G12C-mutated solid tumors.

Inclusion Criteria: * 18 years of age * Histology: pathologically documented, KRAS G12C-mutated, advanced or metastatic solid tumors not amendable to curative therapy 1. Phase 1b Dose Escalation: solid tumors, previously treated 2. Phase 1b Dose Expansion and Phase 2: i. NSCLC, previously treated with immunotherapy, chemotherapy, and KRAS G12C (OFF) inhibitors ii. Solid tumors, previously treated, naïve to KRAS G12C (OFF) inhibitors. * ECOG performance status 0 or 1 * Adequate organ function Exclusion Criteria: * Primary central nervous system (CNS) tumors * Active brain metastases * Known impairment of GI function that would alter the absorption * Major surgical procedures within 28 days or non-study related minor procedures within 7 days of treatment