Dual IO sets new standard in first-line MSI-H/dMMR mCRC
09 Dec 2025
byProf. Heinz-Josef Lenz, USC Norris Comprehensive Cancer Center , Los Angeles, California, US,
Immune checkpoint inhibitors have substantially improved prognosis of patients with metastatic colorectal cancer (mCRC) characterized by microsatellite instability-high (MSI-H) status or mismatch repair deficiency (dMMR). At an industry-sponsored meeting organized by the Hong Kong Society of Digestive Oncology, Professor Heinz-Josef Lenz of the USC Norris Comprehensive Cancer Center in Los Angeles, California, US, discussed updated results of the phase III CheckMate 8HW trial, which support the paradigm shift in favour of first-line dual immunotherapy (IO) with nivolumab plus ipilimumab vs monotherapy and chemotherapy for patients with MSI-H/dMMR mCRC.