NEJM 9 17 2026 Colonoscopy Intervals and Colorectal Cancer Incidence after Adenoma Removal

This study investigates whether extending the time between follow-up screenings for patients who have had high-risk polyps removed compromises their long-term health. By comparing a five-year surveillance interval against the standard three-year recommendation, researchers sought to determine if less frequent monitoring is just as effective at preventing the development of colorectal cancer. The interim findings reveal that waiting longer for a follow-up did not lead to a higher rate of disease, establishing that the five-year gap is statistically noninferior to more frequent testing. Ultimately, these results suggest that for certain patients, extending the duration between colonoscopies is a safe and viable strategy that does not increase the risk of a late-stage diagnosis.