Bacteriologically controlled reusable water bottles for colonoscopy.
Official title: Evaluation of the Microbiological and Organizational Impact of the Use of Bacteriologically Controlled Water in COLOscopy for an Evolution of Our Practices Towards a More Ecoresponsible Endoscopic Activity COLO SOUS L'EAU
Run by University Hospital, Bordeaux · NCT06688955 · Data updated 2026-11-12
We will test whether using bacteriologically controlled reusable water bottles during colonoscopy is microbiologically safe for adults having scheduled colonoscopies at Bordeaux University Hospital.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 40 (estimated) |
| Sponsor | University Hospital, Bordeaux Academic / other |
| Locations | 1 site (Pessac) |
| Status | Recruiting |
| Started | September 29, 2025 |
| Main results expected | December 2025 |
| Study ends | December 2025 |
| Registry record updated | October 3, 2025 |
| Trial ID | NCT06688955 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults scheduled for a colonoscopy in room 4 during the Monday or Tuesday morning shifts at CHU de Bordeaux who can give informed consent and are covered by social security.
✕Probably not a fit
Patients who are pregnant, require emergency colonoscopy, need indigo-carmine chromoendoscopy, are under guardianship, or lack social security coverage are excluded and would not benefit from participation.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Colonoscopy using the water-exchange technique requires about 1 L of water per patient and can improve scope progression, comfort, and polyp detection. This single-center interventional project at CHU de Bordeaux will use bacteriologically controlled water in reusable wash bottles and collect a 200 ml sample from each bottle after the procedure for bacteriological analysis. The study will also set up and assess a sterilization and reconditioning circuit for the bottles, gather staff feedback on feasibility and acceptability, and compare the carbon footprint and waste generation versus single-use sterile bottles. Findings will indicate whether the reusable-bottle process is microbiologically safe and operationally practical for wider adoption.
Why it matters
Potential benefit: If successful, this could let centers replace single-use sterile bottles with safe reusable bottles, reducing plastic waste and sterilization costs without increasing infection risk.
How similar studies have gone: While water-exchange colonoscopy is supported by international recommendations, the specific use of bacteriologically controlled water in reusable bottles has not been previously validated and remains largely untested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * All patients with a colonoscopy indication whose examination is scheduled in room 4, on a Monday and Tuesday shift (8:30 a.m. - 1:30 p.m.) * Male or female of legal age at the time the colonoscopy is ordered * Patient willing to participate in the study * Person affiliated with or benefiting from a social security plan Exclusion Criteria: * Pregnant woman * Patient of legal age under guardianship or protected person * Patient requiring indigo-carmine chromoendoscopy * Patient requiring an emergency colonoscopy * Patient not affiliated to the social security system
Where it's running
-
CHU de Bordeaux - Hôpital haut Lévêque
Pessac, France Recruiting
Study contacts
- Principal investigator: Arthur BERGER — University Hospital, Bordeaux
- Study coordinator: Arthur BERGER
- Email: arthur.berger@chu-bordeaux.fr
- Phone: +335 57 67 49 31
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
AI-assisted bowel prep guide for colonoscopy in hospitalized adults
A smartphone app using multimodal AI on LINE is tested to see if it helps hospitalized adults prepare better for colonoscopy compared with standard education.
-
Thirst-Relief Kit vs Placebo to Ease Thirst During Colorectal Prep for Colonoscopy
A thirst-relief kit containing a lemon popsicle is being tested to see if it lowers thirst and improves comfort for adults undergoing hospital bowel preparation for colonoscopy, compared with a placebo.
-
Bowel prep quality after three education methods for colonoscopy
This trial tests whether verbal advice, a tri-lingual pamphlet, or short instructional videos lead to better bowel preparation for outpatient colonoscopies.
-
Colonoscopy surveillance recommendations: does an algorithm improve timing decisions
This study tests whether an algorithm for colonoscopy surveillance recommendations helps doctors choose when to perform follow-up procedures more accurately in patients under our care.
-
Electrolyte beverage plus PEG for colonoscopy bowel prep
This randomized trial tests different mixes of electrolyte drink and water with PEG to see which bowel prep regimen gives the best cleansing for adults getting colonoscopy.
-
Video tutorial plus oral explanation versus oral explanation alone for colonoscopy preparation
This project will test whether adding a short video tutorial to the usual oral instructions helps adults preparing for their first colonoscopy get a better bowel cleanse.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.