Clinical trial Recruiting at 1 site Observational Ages 18 and up

Characterizing gut microbiota profiles in France

Official title: Le French Gut : the French Microbiota

Run by Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement · NCT05758961 · Data updated 2026-11-12

This study is collecting stool samples and health information from people in France to see how their gut bacteria relate to their diet, lifestyle, and health conditions like diabetes and obesity.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment100000 (estimated)
SponsorInstitut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
Academic / other
Locations1 site (Bobigny)
StatusRecruiting
StartedSeptember 15, 2022
Main results expectedSeptember 14, 2029
Study endsSeptember 15, 2042
Registry record updatedJune 15, 2026
Trial IDNCT05758961 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults over the age of 18 who reside in France.

Probably not a fit

Patients who have had a colectomy, have a digestive stoma, or have taken antibiotics or undergone a colonoscopy in the three months prior to inclusion may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Le French Gut is a national initiative aimed at collecting 100,000 fecal samples along with nutritional and clinical data from participants across France by 2027. The project seeks to understand the diversity of gut microbiomes in healthy individuals and their connections to diet, lifestyle, and various diseases such as diabetes, obesity, and neurodegenerative disorders. Participants will complete an online questionnaire regarding their lifestyle and medical history, followed by home stool sampling. This data will contribute to a larger global effort to map human microbiota and its implications for health.

Why it matters

Potential benefit: If successful, this project could lead to improved understanding of gut health and its relationship with various diseases, potentially guiding personalized dietary and health interventions.

How similar studies have gone: Other studies focusing on gut microbiota have shown promising results, indicating that this approach is supported by previous research.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Persons over the age of 18 living in France.
* Consent form signed electronically.

Non inclusion Criteria:

* Non-adult person (declarative);
* Person not living in France (declarative);
* Persons subject to a protective measure, in particular under guardianship or curatorship or unable to express their consent (declarative);
* Person having had a colectomy (declarative);
* Person with a digestive stoma (declarative);
* Person who has not signed the consent;
* Person who did not answer the entry questionnaire;
* Person who has not sent a compliant stool sample;
* Antibiotic intake in the 3 months before inclusion (declarative);
* Performing a colonoscopy in the 3 months preceding inclusion (declarative).

Where it's running

  • Centre de Recherche sur Volontaire
    Bobigny, France
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.