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Baby's gut bugs linked to brain growth in preterm study

NCT ID NCT04432636

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

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 followed about 94 moderately premature babies (born at 30-32 weeks) from birth to age 2. Researchers tracked the types of bacteria in their guts and compared that to their thinking, movement, and social skills at age 2. The goal was to see if early gut bacteria patterns are linked to later development, but this was an observational study, not a treatment.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

94 people

The number who actually took part.

Started

Mar 2021

Finished

Apr 2026

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.

Ages

30 to 32 weeks

Sex

Anyone

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: * Preterms born at gestational age of 30-326/7 weeks of amenorrhea * Preterms born in Rennes hospital or preterms born in another hospital but moved to Rennes hospital during the first 24 h of postnatal life * Parents or holder of the parental authority who give in writing their free, prior and informed consent for recruitment of their baby who has a social security system * Mother of the baby who gives in writing her free, prior and informed consent to be involved in the present study * Mother of the baby who has a social security system Exclusion Criteria: * Preterms born with a genetic disease * Preterms born with a digestive defect * Uncompetent parents under the protection of guardianship or tutelage services

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Conditions

The condition(s) this trial relates to.

Premature Birth

As listed by the trial registrant

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

Premature

Contacts and locations

Locations

  • CHU Rennes - Hôpital Sud

    Rennes, France

More trials for these conditions

Other studies related to the condition(s) this trial covers.