An interventional study of Colonoscopy and Questionnaires in Colorectal Cancer Prevention, Colorectal Cancer (Diagnosis) and Colorectal Adenocarcinoma, sponsored by Clinique Paris-Bercy. Not yet recruiting at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-02-17.
Sponsored by Clinique Paris-Bercy · Not applicable, Interventional, and Prevention
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.
5,599 studies on the registry are indexed under Colorectal Neoplasms; 1,458 are open to participants now.
This study's planned enrollment of 230 is above the median of 77 across 4,122 interventional studies indexed under Colorectal Neoplasms.
Browse Colorectal Neoplasms studies →Clinique Paris-Bercy is the lead sponsor of 6 studies on the registry; 3 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
The LRD prepared is Colobox
Procedure: Colonoscopy · Other: Questionnaires · Other: Pre-colonoscopy diet by following a special preparation, Colobox.
The LRD is only explained orally and in writing to the patient
Procedure: Colonoscopy · Other: Questionnaires · Other: Pre-colonoscopy diet according to the investigator's oral instructions
Colonoscopy performed and Boston score evaluated
LRD satisfaction questionnaire LRD compliance questionnaire
24 hours before the colonoscopy, The patients follow a special diet, either by themselves according to the investigator's oral instructions
24 hours before the colonoscopy, The patients follow a special diet, by following a special preparation, Colobox.
Boston Score
A 9-point system, helps them see how clean a patient's large intestine is during a colonoscopy. This scale divides the large intestine into three parts: right, middle, and left. Each part can score from : BBPS = 0 (per segment) : unprepared colon segment with mucosa not seen because of solid stool that cannot be cleared. BPPS=3 (per segment) : entire mucosa of the colon segment seen well, with no residual staining, small fragments of stool, or opaque liquid.
Time frame: 1 day
This study is not yet recruiting, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.
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Clinique Paris-Bercy