Study to Assess the Efficacy and Safety of Rifaximin Administered BID in the Treatment of Patients With Diarrhea-Associated Irritable Bowel Syndrome

Irritable Bowel Syndrome Clinical Trial

Official title: Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Assess The Efficacy and Safety of Three Different Doses (275, 550 AND 1100 MG) of Rifaximin Administered BID For Either Two or Four Weeks in The Treatment of Patients With Diarrhea-Associated Irritable Bowel Syndrome

Status Completed

Clinical Trial Summary

This is placebo-controlled study of three rifaximin doses in patients with DIBS. Subjects will be randomized to receive daily doses of placebo BID, rifaximin 275 mg BID, rifaximin 550 mg BID, or 1100 mg BID for 14 days. These four groups will subsequently receive an additional two weeks of placebo for a total of 4 weeks of treatment. A fifth group of subjects will receive rifaximin 550 mg BID for a period of 28 days. Subjects who successfully respond to treatment at the end of the 28-day Treatment Phase will be followed in a Post-treatment Phase that includes study visits during Weeks 6, 8, 12 and 16. Subjects who relapse during the Post-treatment Phase will be discontinued from the study.

Clinical Trial Description

While IBS is one of the most common chronic medical conditions the etiology of IBS is unknown. Although not a life-threatening illness, IBS is considered to be a serious condition that has a substantial impact on a subject's day-to-day function. IBS is characterized by abdominal pain and altered bowel habits, including diarrhea, constipation, or alternating diarrhea and constipation. Symptoms are typically intermittent but may be continuous. ;

Related Conditions & MeSH terms

• Diarrhea
• Irritable Bowel Syndrome
• Syndrome

• NCT number: NCT00269412
• Study type: Interventional
• Source: Bausch Health Americas, Inc.
• Status: Completed
• Phase: Phase 2
• Start date: December 2005
• Completion date: September 2008