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WithdrawnPhase 1/2

Comparing the Efficacy of Nitazoxanide Versus Rifaximin in Adult Patients With Irritable Bowel Syndrome Without Constipation

Reason given: Institutional and funding constrains

Key facts

Phase
Phase 1/2

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

Trial details

Who runs it
Sadat City University
Trial code
NCT05453916
Record updated
14 July 2025
Original description
This study aim to compare the efficacy of nitazoxanide in 2-week course of treatment with rifaximin in treating diarrhea associated with IBS. We also aim to study its effect over 10 weeks after treatment to evaluate its efficacy in eradicating symptoms of IBS in the long run.Read full original descriptionShow less

A Randomized Single-Blind Controlled Trial Comparing the Efficacy of Nitazoxanide Versus Rifaximin in Adult Patients With Irritable Bowel Syndrome Without Constipation

This study aim to compare the efficacy of nitazoxanide in 2-week course of treatment with rifaximin in treating diarrhea associated with IBS. We also aim to study its effect over 10 weeks after treatment to evaluate its efficacy in eradicating symptoms of IBS in the long run.

Inclusion: Patients 18 years of age or older; Patients suffering from diarrhea-predominant IBS according to Rome III criteria; Active symptoms for at least 2 weeks; Abdominal Pain Intensity: weekly average of worst daily (in past 24 hours) abdominal pain score of > 3.0 on a 0-to-10-point scale and Stool Consistency: at least one stool with a consistency of Type 6 or Type 7 Bristol stool score (BSS) on at least 2 days per week; Report no restriction whatsoever on their diet.

Exclusion: Patients who consumed any medications that may affect bowel function within the last 2 weeks such as antibiotics, probiotics, prebiotics, antispasmodics, antidiarrheals, narcotics, or any other medication that may alter bowel function; Patients on antidepressants or antipsychotics starting within the last six weeks before eligibility check; Presence of liver disease, malignancy, severe malabsorption, bedridden, endocrinological disorders, or severe chronic obstructive pulmonary disease; Patients who have undergone abdominal surgeries except for appendectomy and/or cholecystectomy and/or hysterectomy.

ClinicalTrials.gov NCT05453916