A total of 884 mCRC patients from six treatment arms of three independent phase III trials....In the TRIBE FOLFIRI/bevacizumab (bev) arm, DNMT3A rs11681717, and TET1 rs3814177 had significant associations with OS (P=0.001, FDR=0.010), and TR (P=0.008, FDR=0.056), respectively...In the MAVERICC mFOLFOX6/bev arm, DNMT1 rs2228611 was significantly associated with TR (P=0.001, FDR=0.007).