Could a gut bug swap ease ADHD? early trial launches

NCT ID NCT06376331

Recruiting now Disease control Sponsor: The Second Hospital of Nanjing Medical University Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 2 times

Summary

This early study is testing whether a washed fecal transplant (WMT) can improve ADHD symptoms and related issues like sleep problems in children aged 3-17. The idea is that changing the gut bacteria might help the brain via the gut-brain axis. Fifty children will receive the transplant, and doctors will track changes in ADHD severity and sleep quality.

What this could mean

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

Active substance: washed microbiota transplantation (fecal transplant)
What this could lead to: If it works, this could point toward a new way to treat ADHD by targeting the gut-brain connection.
What could go wrong: This is a very early Phase 1 trial with only 50 children, so it is far from proven. The treatment may not work or could cause side effects.

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.

attention deficit hyperactivity disorder, inattentive type attention deficit-hyperactivity disorder Parasomnias

As listed by the trial registrant

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

ATTENTION DEFICIT HYPERACTIVITY DISORDER

Contacts and locations

Locations

Department of Microbiota Medicine & Medical Centre for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University
RECRUITING

Nanjing, Jiangsu, China
SIR RUN RUN hospital of Nanjing Medical University
RECRUITING

Nanjing, Jiangsu, China

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