Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Small Intestinal Bacterial Overgrowth: early-phase trial registry
2 of 3 indexed Small Intestinal Bacterial Overgrowth trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #5,209 of 28,707 conditions by registered trial count.
3 US clinical trials · 2 currently recruiting · #5,209 of 28,707 conditions by registered trial count
Small Intestinal Bacterial Overgrowth: 3 US clinical trials tracked, 2 recruiting.
Small Intestinal Bacterial Overgrowth is the subject of 3 registered US clinical trials on ClinicalTrials.gov, 2 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 1 in Phase 1-2 (earlier-stage). The most active sponsor is US Department of Veterans Affairs, running 1 of these trials.
Enrollment posture brief
Registry condition small-intestinal-bacterial-overgrowth
OPEN 2 | RECR 67% | LATE 0 | EARLY 1 | RANK #5209 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Acute Hypoxemic Respiratory Failure (67% recruiting · 6 trials)
Small Intestinal Bacterial Overgrowth lists 2 open slots (67% of 3 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Small Intestinal Bacterial Overgrowth on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Small Intestinal Bacterial Overgrowth is recruiting above its size-band peers.
2 of 3 indexed trials (66.7%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
Open and recent trials
3 total, page 1 of 1
Indiana University Gastrointestinal Motility Diagnosis Registry
Indiana University
NCT04506593
Evaluating the Effect Of Rifaximin on the Gut Microbiota and Metabolome in SIBO Using CapScan®
Envivo Bio
NCT06298409
Gulf War Digestive Health Study
US Department of Veterans Affairs
NCT00680836
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Small Intestinal Bacterial Overgrowth records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Small Intestinal Bacterial Overgrowth trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Small Intestinal Bacterial Overgrowth page
3 registered trials, 2 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 2 Small Intestinal Bacterial Overgrowth trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- US Department of Veterans Affairs sponsors the most Small Intestinal Bacterial Overgrowth trials on record, review their full trial history before evaluating a specific study. See US Department of Veterans Affairs's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Small Intestinal Bacterial Overgrowth condition card totals 3 registered trials; most-linked intervention CapScan collection capsule; top US site state Utah. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.