Actively Recruiting

Phase 1
Age: 3Years - 17Years
All Genders
Healthy Volunteers
ID06376331

Washed Microbiota Transplantation for Attention-deficit/Hyperactivity Disorder and Its Comorbidities

Led by The Second Hospital of Nanjing Medical University · Updated on 2025-09-05

50

Participants Needed

2

Research Sites

4 weeks

Total Duration

On this page

Sponsors

T

The Second Hospital of Nanjing Medical University

Lead Sponsor

N

Nanjing Medical University

Collaborating Sponsor

AI-Summary

What this Trial Is About

Attention-deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental condition marked by inattention and hyperactivity-impulsivity. It often coexists with oppositional defiant disorder and sleep disturbances, impacting academic and work performance, and increasing risks of other psychiatric issues. Researchers are examining the role of gut microbiota in ADHD through the gut-brain axis and aim to evaluate washed microbiota transplantation (WMT) for improving core ADHD symptoms and related conditions using specialized questionnaires. The study involves administering washed microbiota transplantation, where prepared microbiota suspension is infused into the participant's lower gut. This approach is based on a new automated washing process to restore gut microbiota balance. The trial focuses on children aged 3 to 17 with ADHD who have had stable treatments for at least one month prior and have avoided antibiotics or probiotics for three months before WMT. Participants will be assessed using various questionnaires at baseline, 1 month, and 3 months after transplantation. These include measures for ADHD symptoms, sleep disturbances, gastrointestinal symptoms, and gut microbiome composition through fecal metagenome sequencing. The primary outcome is the Clinical Global Impressions-Improvement scale at 1 and 3 months. Safety and tolerability will also be monitored. Total participation spans several months, with evaluations to understand the mechanism and effectiveness of WMT for ADHD and its comorbidities.

CONDITIONS

Brief Title

Washed Microbiota Transplantation for Attention-deficit/Hyperactivity Disorder

Who Can Participate

Age: 3Years - 17Years
All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Children diagnosed with ADHD according to the Diagnostic and Statistical Manual of Mental Disorders Fifth Edition
  • Aged 3 to 17 years
  • Have received stable treatments for at least 1 month before washed microbiota transplantation
  • Have not taken medications affecting gut microbiota, such as antibiotics or probiotics, for 3 months before transplantation
Not Eligible

You will not qualify if you...

  • Unable to understand questionnaires or provide informed consent by guardian
  • Diagnosed with single-gene disorders, psychosis, central nervous system diseases, or gastrointestinal diseases like ulcerative colitis, Crohn's disease, celiac disease, or eosinophilic esophagitis
  • Have severe comorbidities including cardiopulmonary failure, severe liver or kidney diseases, or cancer
  • Have life-threatening disorders requiring emergency treatment
  • Unable to tolerate colonoscopy or anesthesia

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Treatment

Duration - Single administration with follow-up assessments up to 3 months

Participants receive washed microbiota transplantation, where a prepared microbiota suspension is infused into the lower gut to treat ADHD symptoms.

1 treatment visit and 2 follow-up visits at 1 month and 3 months post transplantation

Trial Site Locations

Total: 2 locations

1

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

Nanjing, Jiangsu, China

Actively Recruiting

2

SIR RUN RUN hospital of Nanjing Medical University

Nanjing, Jiangsu, China

Actively Recruiting

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Research Team

F

Faming Zhang, PhD

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

TREATMENT

Number of Arms

1

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Published Research Related To This Trial

Anxiety, mood, and substance use disorders in adult men and women with and without attention-deficit/hyperactivity disorder: A substantive and methodological overview.

Catharina A Hartman, Henrik Larsson, Melissa Vos...

https://pubmed.ncbi.nlm.nih.gov/37149075

Assessment of probiotic strain Lactobacillus acidophilus LB supplementation as adjunctive management of attention-deficit hyperactivity disorder in children and adolescents: a randomized controlled clinical trial.

Reham M Elhossiny, Heba H Elshahawy, Hanan M Mohamed...

https://pubmed.ncbi.nlm.nih.gov/37946220

Washed microbiota transplantation vs. manual fecal microbiota transplantation: clinical findings, animal studies and in vitro screening.

Ting Zhang, Gaochen Lu, Zhe Zhao...

https://pubmed.ncbi.nlm.nih.gov/31919742

Parent and teacher SNAP-IV ratings of attention deficit hyperactivity disorder symptoms: psychometric properties and normative ratings from a school district sample.

Regina Bussing, Melanie Fernandez, Michelle Harwood...

https://pubmed.ncbi.nlm.nih.gov/18310593