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Breastfeeding's secret power: new study tracks gut health in 500 kids

NCT ID NCT04195425

Knowledge-focused Sponsor: University Hospital, Lille Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study follows 500 children from birth to age 4 to understand how breastfeeding influences gut health. Researchers collect stool samples and track digestive symptoms, focusing on a key immune marker called secretory IgA. The goal is to learn how early nutrition shapes long-term gut wellness.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 500 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2020

Expected to finish

Jun 2031

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Monocentric cohort including mother/child dyads recruited in a University Maternity

Ages

18 years and older

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: For the mother: * Pregnant woman (\>18 years old) followed at the Lille University Jeanne de Flandres Maternity * Woman who can speak, read and write in French * Single pregnancy * Informed consent * Living in the Lille area For the father: * Men \>18 years old * Informed consent Exclusion Criteria: For the mother: * Impossibility to participate to the study follow-up * Woman under guardianship or curatorship * Woman involved in another study inconsistent with biological samples collection For the child after birth: * Prematurity \<37 weeks * Impossibility to participate to the study follow-up * Child under judicial protection measure * Child involved in another study inconsistent with biological samples collection

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Conditions

The condition(s) this trial relates to.

Breast Feeding

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Gut health

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Hop Jeanne de Flandre Chu Lille

    RECRUITING

    Lille, 59037, France

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