Characterizing gut microbiota profiles in France

Le French Gut : the French Microbiota

Observational Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement · NCT05758961

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
Enrollment100000 (estimated)
Ages18 Years and up
SexAll
SponsorInstitut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement Academic / other
Locations1 site (Bobigny)
Trial IDNCT05758961 on ClinicalTrials.gov

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.

Who should consider this trial

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

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.

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

Eligibility criteria

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 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 General Population
Last reviewed 2026-06-13 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.