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Clinical Trial Summary

The purpose of this study is to compare a single dose of rifaximin with loperamide to the current standard approach of single dose azithromycin with loperamide for the treatment of acute watery traveler's diarrhea (TD). The study requires 1) taking a single dose antibiotic plus loperamide to treat TD, 2) providing blood and stool samples at different time points to evaluate infection and immune responses, 3) completing a daily symptom diary following treatment, 4) being seen by the study doctor to monitor illness and recovery, and 5) completing a brief electronic questionnaire at 3 months. Participants will be randomly assigned to one of the two treatment groups. The two groups are 1) rifaximin 550 mg as a single dose with loperamide 4 mg initially followed by 2 mg after each unformed stool or 2) azithromycin 500 mg as a single dose with loperamide 4 mg initially followed by 2 mg after each unformed stool. Both groups will take the antibiotic dose and 4 mg of loperamide.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT05677282
Study type Interventional
Source Henry M. Jackson Foundation for the Advancement of Military Medicine
Contact Principal Investigator
Phone 240-855-6584
Email contactus@idcrp.org
Status Recruiting
Phase Phase 4
Start date October 28, 2022
Completion date December 2024

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