Colonoscopy Surveillance at 5 or 10 Years for Adults Aged 45-70 with 1-2 Small Non-Advanced Adenomatous Polyps

What this Trial Is About

Researchers are studying colorectal cancer CRC in participants aged 45 to 70 who have 1 to 2 non-advanced adenomas, which are small colon polyps without high-risk features. The trial compares two surveillance colonoscopy schedules one group receives colonoscopy at 5 and 10 years after polyp detection, while the other group has colonoscopy only at 10 years. This study aims to provide randomized data to guide optimal timing for follow-up colonoscopies to help reduce CRC incidence and improve clinical practices. Participants are randomly assigned to one of two groups the first group undergoes surveillance colonoscopy at both 5 and 10 years following their qualifying colonoscopy, and the second group undergoes colonoscopy at 10 years only. All colonoscopies, including any unscheduled ones, follow current quality guidelines and institutional preparation standards. The qualifying colonoscopy must have been complete and performed within 4 years before randomization, with all polyps fully removed. During the study, participants will undergo colonoscopies according to their assigned schedules. Researchers will monitor the incidence of colorectal cancer over 10 years as the primary outcome. Participants must be able to understand English or Spanish to complete required procedures. The study may last up to several decades, with ongoing monitoring to assess long-term cancer incidence and the effectiveness of different surveillance intervals.

Five or Ten Year Colonoscopy for 1-2 Non-Advanced Adenomatous Polyps