This clinical trial is focused on studying a type of cancer called metastatic colorectal cancer, which has specific characteristics known as BRAF V600E mutation and MSI-H/dMMR. These terms refer to genetic changes in the cancer cells that can affect how the cancer grows and responds to treatment. The study is testing a combination of medications to see how effective they are in treating this type of cancer. The medications being studied are Encorafenib, Cetuximab, and Pembrolizumab. Encorafenib is taken as a capsule, while Cetuximab and Pembrolizumab are given through an injection into a vein.
The purpose of the study is to compare the effectiveness of using Encorafenib and Cetuximab together with Pembrolizumab against using Pembrolizumab alone. Participants in the study will be randomly assigned to one of these two treatment groups. The study will last for up to 24 months, during which participants will receive their assigned treatment and have regular check-ups to monitor their health and the cancer’s response to the treatment.
Throughout the study, participants will have regular visits with the study team to assess their health, including blood tests and scans to check the cancer’s progress. The study aims to provide valuable information on whether the combination of these medications can offer better outcomes for patients with this specific type of metastatic colorectal cancer. The results could help improve treatment options for future patients with similar conditions.



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