NIH-funded research R21 grant

Fecal transplant treatment for auto-brewery (gut fermentation) syndrome

Official title: Fecal microbiota transplantation for auto-brewery syndrome

Funded at University of California, San Diego · NIH-11197592 · Data updated 2026-11-12

This project gives capsule fecal microbiota transplants to adults with auto-brewery syndrome to try to stop their gut from producing alcohol and causing unexplained intoxication.

More Microbiota research and trials

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionUniversity of California, San Diego
NIH-funded
Lab location1 site (La Jolla, United States)
Project startSeptember 25, 2024
Project endAugust 31, 2026
Funding year2025
Award (this year)$195,906
NIH project number5R21AA031410-02
Project IDNIH-11197592 on NIH RePORTER

Who could benefit from this research

Could help

Adults aged 21 and older with suspected or diagnosed auto-brewery syndrome who have recurrent unexplained intoxication episodes and can provide stool samples and attend follow-up visits.

Less likely to help

People whose symptoms are due to ongoing drinking rather than gut fermentation, pregnant women, or those with severe immune compromise may not be eligible or likely to benefit.

What this research studies

You will provide stool samples so researchers can compare your gut bacteria to household partners because lab tests showed patient samples made more ethanol and antibiotics could stop that production. If eligible, you may receive oral capsules of fecal microbiota transplantation (FMT) intended to replace the ethanol-producing microbes in your gut. The team will track your symptoms, breath or blood alcohol levels, and stool over time and monitor for side effects. The goal is to see whether FMT can reduce or stop inebriation episodes and be safe and tolerable.

Why it matters

Potential benefit: If successful, FMT could reduce or stop ABS flares and lessen the social, legal, and safety consequences of unexplained intoxication.

How similar studies have gone: FMT is an established cure for C. difficile and the investigators report one ABS patient who achieved remission after capsule FMT, but use of FMT for ABS is experimental with very limited published data.

Where this research is happening

  • University of California, San Diego
    La Jolla, United States
    Active

Researchers

  • Principal investigator: Schnabl, Bernd G. — University of California, San Diego
  • Study coordinator: Schnabl, Bernd G.

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.