CI

At a glance

ClinicalIndex Comparison Record
Phase 4Completed· 74 enrolled
Drug / intervention
Rifaximin 550 MG +1 moredrug
Likely dose
Rifaximin 550 MGfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03219528
NCT03219528Phase 4Completed

A Longitudinal Study to Identify IBS Phenotypes Using Fecal Microbiota and Hydrogen Breath Testing

University of Michigan·interventional·Posted Jul 17, 2017·Updated Apr 27, 2025

In Brief

A Phase 4 clinical trial evaluating Rifaximin 550 MG and Low FODMAP Diet for Irritable Bowel Syndrome. Completed, enrolled 74 participants across 1 site.

Detailed Summary

Diarrhea-predominant irritable bowel syndrome (IBS-D) is a highly prevalent but poorly understood condition with limited treatment options. Current therapies, including a nonabsorbable antibiotic rifaximin or diet low in fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (FODMAP), show efficacy in 50% or less of patients. In this proposal, participants with IBS-D will be randomized to receive either rifaximin or low FODMAP dietary intervention.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States

Timeline

Phase 4CompletedFinished
201820192020202120222023202420252026
First PostedJul 17, 2017
Enrollment StartFeb 13, 2018
Primary CompletionFeb 28, 2024
TodayJul 2, 2026
Enrollment to primary: 6.0 yearsPosted 9.0 years ago

Interventions

Rifaximin 550 MGdrug

Rifaximin 550 mg three times daily for 14 days

Low FODMAP Dietother

Low FODMAP dietary intervention for 4 weeks