A Phase 1b, Open-Label, Dose Escalation and Expansion Study to Investigate the Safety, Pharmacokinetics, and Antitumor Activity of BGB-3245 With Panitumumab in Patients With Advanced or Metastatic RAS Mutant Colorectal and Pancreatic Ductal Cancers
The primary objectives of Part 1 of this study are to: * Assess the safety and tolerability of the combination of BGB-3245 and panitumumab in participants with advanced or metastatic colorectal cancer (CRC) with a known mutation status and tumor harboring an oncogenic mutation of v-Raf murine sarcoma viral oncogene homolog B; B-RAF proto-oncogene, serine/threonine kinase (BRAF), Kirsten rat sarcoma viral oncogene homolog (KRAS), or neuroblastoma RAS viral oncogene homolog (NRAS) with documented disease progression during or after at least 1 line of prior therapy. * Determine the maximum tolerated dose (MTD) of BGB-3245 in combination with panitumumab and the recommended phase 2 dose (RP2D) of the combination. The primary objective of Part 2 of this study is to determine the objective response rate (ORR) as assessed by initial investigator review using Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 with BGB-3245 and panitumumab combination treatment at the RP2D.
• Participants with histologically confirmed advanced or metastatic solid tumors who have had documented disease progression by RECIST criteria during or after at least 1 prior line of systemic anticancer therapies in the representative population or are unable to receive standard of care therapy(ies) as noted by local guidelines.
• Part 1 (Dose Finding): Participants with CRC with a known mutation status by local testing and tumor harboring an oncogenic mutation of BRAF, KRAS, or NRAS in the archival tumor sample or fresh tumor biopsy.
• Part 2 (Dose Expansion): Participants must have a known mutation status by local testing and meet one of the following criteria according to the group they are enrolled into: Group 1: Participants with CRC that harbors KRAS or NRAS mutations in the archival tumor sample or fresh tumor biopsy. Group 2: Participants with PDAC that harbors KRAS mutations in the archival tumor sample or fresh tumor biopsy.
• Participants must provide archival tumor tissue or a fresh tumor biopsy for retrospective mutation status analysis.
• Participants must have radiologically measurable disease as defined per RECIST v1.1 at screening.
• Eastern Cooperative Oncology Group performance status of ≤1 at screening.
• Adequate hematologic and organ function, as indicated by defined laboratory values, prior to Cycle 1 Day 1.
• Adequate cardiac function.