Analyzing gut microbiota in patients needing colonoscopy

"Contribution of Metagenomic Analysis of Faecal Microbiota Combined With Artificial Intelligence for the Prediction of Colorectal Cancer Risk; Study in Patients Scheduled for Colonoscopy".

Observational Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement · NCT06174233

This study looks at the gut bacteria of people aged 50 to 75 who need a colonoscopy to see if certain bacteria patterns can help identify those at risk for colorectal cancer.

Quick facts

Study typeObservational
Enrollment2500 (estimated)
Ages50 Years to 75 Years
SexAll
SponsorInstitut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement Academic / other
Locations1 site (Bobigny)
Trial IDNCT06174233 on ClinicalTrials.gov

What this trial studies

This observational study focuses on patients aged 50 to 75 who require a colonoscopy as part of routine care. It aims to analyze the gut microbiota of these patients to identify potential microbiota signatures associated with colorectal cancer and adenomas. Participants will complete questionnaires about their personal and family history, as well as dietary habits, while also undergoing routine FIT testing. The findings could lead to more targeted recommendations for follow-up colonoscopies based on microbiota profiles.

Who should consider this trial

Good fit: Ideal candidates are individuals aged 50 to 75 who are scheduled for a colonoscopy and can provide a fecal sample.

Not a fit: Patients with known inflammatory bowel disease or those who have had a colectomy will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance colorectal cancer screening by identifying individuals at higher risk based on their microbiota profiles.

How similar studies have performed: Other studies have shown promise in identifying microbiota signatures related to colorectal cancer, suggesting this approach may be viable.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Between the ages of 50 and 75
* Requiring colonoscopy
* Able to provide a faecal sample and to perform a FIT test prior to colonoscopy
* Without known inflammatory bowel disease (chronic inflammatory bowel disease (IBD), chronic ulcerative colitis (CUC) and Crohn's disease (CD))
* No medical condition that, in the opinion of the investigator, should preclude inclusion in the study
* Not having participated in any other clinical research study in which an investigational drug has been administered within 60 days prior to and including the date of informed consent or is likely to be administered during the period of colonoscopy
* Participation agreement signed electronically

Exclusion Criteria:

* Persons not living in France (declaratory);
* Persons subject to a protective measure, in particular guardianship or trusteeship, or unable to express their consent (declarative);
* Persons who have had a colectomy (declaratory);
* Person with a digestive stoma (declaration);
* Person who did not sign the consent form;
* Person who did not answer the entry questionnaire;
* Person who did not send a compliant stool sample;
* Antibiotics taken in the 3 months prior to inclusion (self-report);
* Person aged under 50 or over 75.

Where this trial is running

Bobigny

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Patients Aged 50-75 and Requiring Colonoscopy
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.