Condition
Small Intestinal Bacterial Overgrowth clinical trials and research
As of November 12, 2026, Find a Trial lists 3 Small Intestinal Bacterial Overgrowth clinical trials that are recruiting, at sites in 2 countries (most in United States (2), Canada (1)). By phase: Phase 1 (2). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 3Clinical trials
- 2Countries
Newest Small Intestinal Bacterial Overgrowth clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Evaluating rifaximin's effect on gut microbiota in SIBO patients | Phase 1 | Mountain View, California | Recruiting | Mar 7, 2024 |
| Using fecal microbiota transplant to treat small intestinal bacterial overgrowth in children | Phase 1 | Hamilton, Ontario and 1 other locations | Recruiting | Aug 1, 2023 |
| Registry for gastrointestinal motility disorders at Indiana University | — | Indianapolis, Indiana | Recruiting | Aug 10, 2020 |
All recruiting trials (3)
-
Evaluating rifaximin's effect on gut microbiota in SIBO patients
This study is testing how the antibiotic rifaximin affects the gut bacteria and metabolism in people with Small Intestinal Bacterial Overgrowth (SIBO) before they start treatment.
-
Using fecal microbiota transplant to treat small intestinal bacterial overgrowth in children
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.
-
Registry for gastrointestinal motility disorders at Indiana University
This study is creating a detailed list of patients with gastrointestinal motility disorders to help doctors better understand and treat these conditions.
Related topics
Quick answers
How many Small Intestinal Bacterial Overgrowth clinical trials are recruiting right now?
3, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 2 countries. The most sites are in United States (2 trials), Canada (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 1: 2. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.