Poop pills for autism? small study tests gut bacteria fix

NCT ID NCT07371013

Not yet recruiting Disease control Sponsor: Institute of Mother and Child, Warsaw, Poland Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This pilot study tests whether fecal microbiota transplantation (FMT) capsules can improve gut symptoms like constipation and diarrhea in children with autism, and possibly help their behavior. Twenty children aged 6-12 will be randomly assigned to receive either FMT capsules or a placebo after bowel cleansing. The study lasts about 6 months and tracks stool consistency, pain, and behavioral changes.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Fecal microbiota transplantation (FMT) capsules (MBiotix HBI Caps) containing gut bacteria from healthy donors
What this could lead to: If it works, this could point toward a new way to ease gut problems and possibly improve behavior in children with autism.
What could go wrong: This is a very small, early pilot study with only 20 children. It may not show clear benefits, and the effects could vary widely. Bowel cleansing is required, which can be uncomfortable.

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

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Conditions

The condition(s) this trial relates to.

autism autism spectrum disorder pervasive developmental disorder

As listed by the trial registrant

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

AUTISM SPECTRUM DISORDER GASTROINTESTINAL SYMPTOMS

Contacts and locations

Locations

Institute of Mother and Child

Warsaw, Masovian Voivodeship, 01-211, Poland

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