Study of Perioperative Dostarlimab in Participants With Untreated T4N0 or Stage III dMMR/MSI-H Resectable Colon Cancer
Trial Parameters
Brief Summary
The primary purpose of this study is to evaluate the efficacy of perioperative dostarlimab compared with standard of care (SOC) in participants with untreated T4N0 or Stage III (resectable), defective mismatch repair/ microsatellite instability high (dMMR/MSI-H) colon cancer.
Eligibility Criteria
Inclusion Criteria: * Has untreated pathologically confirmed colon adenocarcinoma * Has resectable colon adenocarcinoma defined as clinically T4N0 or Stage III * Has radiologically evaluable disease * Has a tumor demonstrating the presence of either dMMR status or MSI-H Exclusion Criteria: * Has distant metastatic disease. * Has received prior medical therapy (chemotherapy, immunotherapy, biologic, or targeted therapy), radiation therapy or surgery for management of the current diagnosis of colon cancer * Has a tumor that, in the investigator's judgment is causing symptomatic bowel obstruction or otherwise requires urgent/emergent surgery at the time of screening. Participants with a history of colonic obstruction are eligible after obstruction is relieved by a diverting stoma (defunctioning ileostomy or colostomy). Patients with a history of colonic obstruction in the context of current colon cancer diagnosis and treated with colonic stents are not eligible. * Has undergone any major