Clinical trial Recruiting at 1 site Phase 1 Interventional Ages 3 to 18

Using fecal microbiota transplant to treat small intestinal bacterial overgrowth in children

Official title: Pilot Feasibility Study of Fecal Microbiota Transplant for the Treatment of Small Intestinal Bacterial Overgrowth

Run by McMaster Children's Hospital · NCT05967871 · Data updated 2026-11-12

This study is testing if a new treatment using fecal microbiota transplant can help children with small intestinal bacterial overgrowth feel better instead of relying on antibiotics.

More Small Intestinal Bacterial Overgrowth trials

Quick facts

PhasePhase 1
Study typeInterventional
Ages3 Years to 18 Years
SexAll
Enrollment20 (estimated)
SponsorMcMaster Children's Hospital
Academic / other
Locations2 sites (Hamilton, Ontario and 1 other locations)
StatusRecruiting
StartedMarch 11, 2024
Main results expectedDecember 31, 2026
Study endsDecember 31, 2026
Registry record updatedAugust 21, 2025
Trial IDNCT05967871 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are children aged 3 to 18 years diagnosed with small intestinal bacterial overgrowth.

Probably not a fit

Patients younger than 3 years old or those currently on antibiotics or other specified treatments 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 pilot feasibility study aims to evaluate the safety and clinical efficacy of a novel fecal microbiota transplantation (FMT) protocol specifically for pediatric patients suffering from small intestinal bacterial overgrowth (SIBO). The study will assess the feasibility of administering FMT, including the acceptability to both children and their parents, as well as the ease of administration and sample collection. Participants will be children aged 3 to 18 years who have been diagnosed with SIBO and will discontinue antibiotics prior to the intervention. The study seeks to provide an alternative treatment approach to traditional broad-spectrum antibiotics, which may lead to persistent dysbiosis and other complications.

Why it matters

Potential benefit: If successful, this treatment could provide a novel and effective solution for managing SIBO in pediatric patients, potentially improving their quality of life.

How similar studies have gone: While fecal microbiota transplantation has been established for other conditions, this specific application for pediatric SIBO is novel and has not been extensively tested in prior studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients 3-18 years old
* Patients will discontinue antibiotics for at least 1 week prior to FMT
* A diagnosis of SIBO established through lactose breath test (LBT), and showing of symptoms of SIBO

Exclusion Criteria:

* Participants will not be permitted to start any new treatments (including antibiotics, probiotics, antacid treatments, or antimotility treatments) until Week 8, unless clinically indicated
* We will exclude participants \<3yo to avoid potential concerns of microbial transmission in young children, and to ensure participants are developmentally able to perform LBT

  * All potential participants should request a referral through their primary, or subspecialty physician. We would be pleased to help facilitate this contact if needed, provided the appropriate contact information can be sent.

Where it's running

  • McMaster Children's Hospital
    Hamilton, Ontario, Canada
    Recruiting
  • Hospital for Sick Children (SickKids)
    Toronto, Ontario, Canada
    Not yet recruiting

Study contacts

  • Principal investigator: Nikhil Pai, MD — McMaster Children's Hospital (McMater University)
  • Study coordinator: Fariha Chowdhury, BASc, MSc, PhD(c)
  • Email: chowdf1@mcmaster.ca
  • Phone: 647-787-8297

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.