The purpose of this study is to evaluate two study medicines (encorafenib plus cetuximab) taken alone or together with standard chemotherapy for the potential treatment of colorectal cancer that: * has spread to other parts of the body (metastatic); * has a certain type of abnormal gene called "BRAF"; and * has not received prior treatment. Participants in this study will receive one of the following study treatments: * Encorafenib plus cetuximab: These participants will receive encorafenib by mouth at home every day and cetuximab once every two weeks by intravenous (IV) infusion (an injection into the vein) at the study clinic. * Encorafenib plus cetuximab with chemotherapy: These participants will receive encorafenib and cetuximab in the way described in the bullet above. Additionally, they will receive standard chemotherapy by IV infusion and oral treatment at home. * Chemotherapy alone: These participants will receive chemotherapy, the standard treatment for this condition, by IV infusion at the study clinics and oral treatment at home. This study is currently enrolling participants who will receive either encorafenib plus cetuximab with chemotherapy or chemotherapy alone. The study team will monitor how each participant responds to the study treatment for up to about 3 years.
Age range
16 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
SLI: Number of Participants With Dose Limiting Toxicity (DLTs)
Timeframe: Cycle 1 (28 days)
Phase 3: Progression Free Survival (PFS) as Assessed by Blinded Independent Central Review (BICR) for Arm B vs Arm C - FAS
Timeframe: From date of randomization to earliest documentation of PD by BICR or death or censoring date, whichever occurred first (maximum up to 37.25 months)
Phase 3: Objective Response Rate (ORR) as Assessed by BICR for Arm B vs Arm C - FAS ORR Subset
Timeframe: From date of randomization to until documented PD by BICR, or start of subsequent anticancer therapy or death, whichever occurred first (maximum up to 24.71 months)
Cohort 3: ORR as Assessed by BICR for Arm D vs Arm E - FAS
Timeframe: From date of randomization until documented PD by BICR, or start of subsequent anticancer therapy or death, whichever occurred first (maximum up to 14.1 months)