This clinical trial is focused on studying a type of cancer called metastatic colorectal cancer, specifically when it is located on the left side of the colon and cannot be surgically removed. The cancer must also be of a specific genetic type known as RAS/B-RAF wild-type. The study is investigating a treatment that combines a medication called Panitumumab with a chemotherapy regimen known as FOLFIRI. Panitumumab is given as an infusion, which means it is administered directly into the bloodstream through a vein.
The purpose of the study is to determine if giving Panitumumab and FOLFIRI in an intermittent manner (with breaks) is as effective as giving it continuously (without breaks) for patients who have not received any prior treatment for their metastatic colorectal cancer. The study also aims to see if the intermittent treatment can improve safety, tolerability, and quality of life compared to the continuous treatment. Participants will be randomly assigned to one of the two treatment groups and will receive the treatment until their cancer progresses or they experience unacceptable side effects.
Throughout the study, researchers will monitor the effectiveness and safety of the treatments by looking at various factors, such as how long patients live without their cancer getting worse and the overall survival time. They will also assess the quality of life of participants using specific questionnaires. Additionally, the study will explore potential biomarkers, which are biological indicators that might help predict how well a patient will respond to the treatment. Blood samples and, when available, tissue samples from tumors will be collected to help with this research.



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