Clinical trial Recruiting at 2 sites Phase 1 Interventional Ages 6 to 17

Using washed microbiota transplantation to treat Tourette's syndrome

Official title: Efficacy and Safety of Washed Microbiota Transplantation for Tourette's Syndrome

Run by The Second Hospital of Nanjing Medical University · NCT03764748 · Data updated 2026-11-12

This study is testing whether a new treatment that involves transferring healthy gut bacteria can help people with Tourette's syndrome feel better.

More Tourette Syndrome trials

Quick facts

PhasePhase 1
Study typeInterventional
Ages6 Years to 17 Years
SexAll
Enrollment30 (estimated)
SponsorThe Second Hospital of Nanjing Medical University
Academic / other
Locations2 sites (Nanjing, Jiangsu and 1 other locations)
StatusRecruiting
StartedApril 17, 2024
Main results expectedOctober 31, 2027
Study endsOctober 31, 2027
Registry record updatedAugust 19, 2024
Trial IDNCT03764748 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are children and adolescents aged 6 to 17 who have been diagnosed with Tourette's syndrome and have a significant level of tic severity.

Probably not a fit

Patients with other severe neurological or psychiatric disorders, or those whose symptoms are primarily due to conditions like autism or obsessive-compulsive disorder, may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the efficacy of washed microbiota transplantation (WMT) as a treatment for Tourette's syndrome (TS). It is based on emerging evidence that gut microbiota can influence the central nervous system, suggesting that restoring gut microbiota may help alleviate TS symptoms. The study involves transferring gut microbiota from healthy donors to patients using a specialized washing process to enhance the treatment's effectiveness. Participants will be assessed using standardized questionnaires to measure the impact of WMT on TS and its comorbidities.

Why it matters

Potential benefit: If successful, this treatment could significantly improve the quality of life for patients with Tourette's syndrome by reducing tic severity.

How similar studies have gone: While the approach of using microbiota transplantation is gaining traction in treating gut-brain axis-related disorders, this specific application for Tourette's syndrome is novel and has not been extensively tested in prior studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Patients were aged 6 to 17 years (inclusive);
2. Met the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria for TS;
3. Had a Yale Global Tic Severity Scale-Total Tic Score (YGTSS-TTS) of at least 20 at screening and baseline.
4. Underwent WMT.

Exclusion Criteria:

1. Complicated with certain brain disease, including tumor,injury,cerebrovascular disease;
2. Complicated with other severe disease, including cancers, organ failure, heart diseases;
3. Stereotypy associated with autism spectrum disorder;
4. With a confirmed diagnosis of psychiatric diseases, such as bipolar disorders; schizophrenia and major depressive disorders;
5. Clinically significant obsessive-compulsive disorder at baseline considered to be the primary cause of impairment at baseline;
6. Medications use affecting gut microbiota such as antibiotics and probiotics three months before WMT.
7. Other neurologic disorders other than TS that could influence the evaluation of tics.

Where it's running

  • Department of Microbiota Medicine & Medical Centre for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University
    Nanjing, Jiangsu, China
    Recruiting
  • SIR RUN RUN hospital of Nanjing Medical University
    Nanjing, Jiangsu, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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.