Poop pills for autism? small trial tests gut fix for social struggles

NCT ID NCT04630847

First seen Nov 01, 2025 · Last updated Jun 22, 2026 · Updated 33 times

Summary

This early-stage trial tests whether a 6-week course of vancomycin followed by a fecal transplant from a close relative can ease social and language problems in adults with autism. Ten participants with autism and gut issues will receive the treatment. The study focuses on safety and changes in autism symptoms, quality of life, and gut health.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • ProgenaBiome

    Ventura, California, 93003, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

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 transplant (FMT) from first-degree relatives

What this could lead to

If it works, this could point toward a way to improve social and language skills in adults with autism by changing gut bacteria.

What could go wrong

This is a very early Phase 1 trial with only 10 people, so results may not apply widely. The procedure carries risks of infection or digestive upset.

Conditions

The condition(s) this trial relates to.

autism Autism Spectrum Disorder Dysbiosis

As listed by the trial registrant

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