Safety and Efficacy Study of BMS-908662 Alone or in Combination With Cetuximab in Subjects With K-RAS or B-RAF Mutation Positive Advanced or Metastatic Colorectal Cancer

A Phase 1/2 Study of BMS-908662 (XL281) Alone or in Combination With Cetuximab in Subjects With K-RAS or B-RAF Mutation Positive Advanced or Metastatic Colorectal Cancer

The purpose of the study is to identify a safe and tolerable dose of BMS-908662 in combination with cetuximab; and then to evaluate the tumor response to BMS-908662 when administered alone or in combination with cetuximab

Phase 1: Single Arm Study

Phase 2: Randomized Controlled, Parallel

Inclusion Criteria:

• Subjects with K-RAS (codon 12 or 13) or B -RAF (V600E) mutation positive advanced or metastatic colorectal cancer who have relapsed or are refractory to 2 or more standard systemic anticancer regimes for metastatic disease, or are intolerant to existing therapies.
• Histologic or cytologic confirmation of the diagnosis.
• Eastern Cooperative Oncology Group (ECOG) ≤ 1
• Adequate organ & marrow function.

Exclusion Criteria:

• Uncontrolled or significant cardiovascular disease.
• Phase 2: Prior therapy with a RAF inhibitor.