Patent ID: 11879150

Abstract:
Treating colorectal cancer in a stage IV uses a systemic chemotherapy, either a FOLFOX regimen or a FOLFIRI regimen. However, a method of predicting which of the regimens is effective to an individual patient would be advantageous. Provided is a biomarker that indicates which of the regimens, the FOLFOX regimen or the FOLFIRI regimen, is advantageous to select for a patient having colorectal cancer. The biomarker is characterized by being a gain in the copy number of at least one region on human chromosomes among 7p15.3, 7q34, 8q24.1, 8q24.2, 8q24.1-q24.2, 9q34.3, 13q12.2, 13q14.11, 13q22.1, 13q32.2-q32.3, 13q34, 20q12, 20q13.13, 20q13.2, and 20q13.3. Using such a biomarker enables to determine which, the FOLFOX regimen or the FOLFIRI regimen, is more advantageously selected.