Study Comparing the Quality of Colon Cleanliness With Prepackaged LRD (Low-residue Diet) vs. Guided (POG).

Low-residue diet (LRD) in patient improves the quality of the colon cleanliness and thus the adenoma detection rate (ADR). This is a key criterion in colonoscopy screening for colorectal cancer (CRC). The benefit of an LRD lasting more than 24 hours before colonoscopy has not been demonstrated compared to a 24-hour LRD. Few studies have evaluated the benefit of a prepackaged 24-hour LRD compared to simply receiving oral and written LRD instructions during a consultation. The aim of the study is to evaluate the usefulness of a prepackaged LRD (Colobox®) compared to simple LRD instructions on colon cleanliness (Boston score) in patients examined by endoscopy.

NCT Number	NCT07361575
Lead Sponsor	Clinique Paris-Bercy
Conditions	Colorectal Cancer Prevention, Colorectal Cancer (Diagnosis), Colorectal Adenocarcinoma
Enrollment	230 participants
Start Date	2026-01-30
Primary Completion	2026-11-15 (estimated)
Study Completion	2026-11-30 (estimated)
Updated on ClinicalTrials.gov	2026-02-17