- Conditions
- IBS (Irritable Bowel Syndrome), IBS-D (Diarrhea-predominant)
- Interventions
- rifaximin 66mg + N-acetylcysteine 560mg three times daily, RNIB21 containing rifaximin 132mg + N-acetylcysteine 560mg three times daily, Placebo
- Drug
- Lead sponsor
- Mark Pimentel, MD
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 225 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Los Angeles, California
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