Condition
SIBO clinical trials and research
As of November 12, 2026, Find a Trial lists 4 SIBO clinical trials that are recruiting, at sites in 4 countries (most in United Kingdom (1), Romania (1), United States (1)). 1 was first registered in the last 30 days. Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 4Clinical trials
- 1New in 30 days
- 4Countries
Newest SIBO clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Understanding links between severe periodontitis and gut bacteria and barrier function | — | Cluj-Napoca | Recruiting | Oct 30, 2026 |
| Gut methane and Parkinson's: measuring if a probiotic helps people with Parkinson's, REM sleep behavior disorder, or cognitive concerns | — | Cambridge, CB2 | Recruiting | Aug 25, 2026 |
| Effect of Rifaximin on Abdominal Bloating in SIBO Patients | — | Jinan, Shandong | Recruiting | Jan 13, 2025 |
| Testing a new catheter for better fluid collection during endoscopy | — | Los Angeles, California | Recruiting | Jun 5, 2020 |
All recruiting trials (4)
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Understanding links between severe periodontitis and gut bacteria and barrier function
This observational study tests whether severe periodontitis is related to small intestinal bacterial overgrowth (SIBO) and changes in gut barrier biomarkers in adults.
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Gut methane and Parkinson's: measuring if a probiotic helps people with Parkinson's, REM sleep behavior disorder, or cognitive concerns
This study tests whether a probiotic containing Limosilactobacillus reuteri can help people with Parkinson's disease, those at high risk for PD, and related cognitive issues by potentially improving gut methane levels and overall symptoms.
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Effect of Rifaximin on Abdominal Bloating in SIBO Patients
This study is testing if the antibiotic rifaximin can help people with Small Intestinal Bacterial Overgrowth (SIBO) feel better by reducing their abdominal bloating.
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Testing a new catheter for better fluid collection during endoscopy
This study is testing a new type of catheter to see if it can collect fluid from the small intestine more effectively during endoscopy for patients undergoing the procedure.
Related topics
Quick answers
How many SIBO clinical trials are recruiting right now?
4, as of November 12, 2026. 1 of them was first registered in the last 30 days. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 4 countries. The most sites are in United Kingdom (1 trial), Romania (1 trial), United States (1 trial), China (1 trial). Each study page lists its sites and which ones are recruiting.
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.