Are 18 years and older and have been diagnosed with colorectal cancer that has spread to parts of the body away from the primary tumor site
Have tumors with confirmed deficient DNA mismatch repair (dMMR) or high levels of microsatellite instability (MSI-H)
Patients are not eligible for the COMMIT trial if they:
Have been previously treated with any systemic therapy for metastatic disease
Have a history of significant lung or heart disease
Are pregnant, breastfeeding, or plan to become pregnant during the study or 5 months after the last dose of Atezolizumab during the study
Have had prior treatment with oxaliplatin chemotherapy within 6 months prior to randomization
There are additional eligibility requirements for this study: see the complete list at clinicaltrials.gov. Contact your doctor if you are unsure of your eligibility. You can also contact a study doctor who will review the criteria with you and help determine your eligibility.