Office-based flexible sigmoidoscopy allows rapid assessment and management of suspected immune checkpoint inhibitor-related colitis

Office-based flexible sigmoidoscopy is a safe, feasible, and high-yield diagnostic tool for suspected irColitis. A rapid access program enables timely diagnosis, guides therapy, minimizes unnecessary immunosuppression, and facilitates ICI continuation. This model may improve outcomes and should be considered for broader adoption among integrated oncology and gastroenterology care teams.