Immunotherapy in colorectal cancer can help a select group of patients. “BRAF, microsatellite instability (MSI), KRAS and NRAS molecular tumor marker testing are absolutely critical today for immunotherapy treatment decisions in colon cancer.” “The colon cancer cells who survived chemotherapy may not be the same as the cells who died.” Liquid biopsy can monitor in real time this molecular escape of colorectal tumor from treatment.
How to find best chemotherapy regimens for each patient? What is role of BRAF, KRAS, MSI and other tumor markers for colorectal cancer prognosis and treatment? Leading colorectal cancer chemotherapy expert discusses precision medicine treatment of colorectal cancer.