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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the original study
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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.
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
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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ProgenaBiome
Ventura, California, 93003, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact Phone: •••-•••-•••• Email: •••••@•••••
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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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.