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Completed Phase 2 Interventional

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

ClinicalTrials.gov ID: NCT00269412

Public ClinicalTrials.gov record NCT00269412. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jul 22, 2026, 5:49 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

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

Study identification

NCT ID
NCT00269412
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Bausch Health Americas, Inc.
Industry
Enrollment
525 participants

Conditions and interventions

Interventions

  • Rifaximin Drug

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 30, 2005
Primary completion
Jul 31, 2007
Completion
Aug 31, 2008
Last update posted
Nov 24, 2019

2005 – 2008

United States locations

U.S. sites
67
U.S. states
26
U.S. cities
64
Facility City State ZIP Site status
Mayo Clinic Scottsdale Scottsdale Arizona 85259
Premeire Pharmaceutical Research Tempe Arizona 85282
Advanced Clinical Research Institute Anaheim California 92801
Lovelace Scientific Resources Irvine California 92618
West Gastroenterology Medical Group Los Angeles California 90045
Beverly Hills Gastroenterology Los Angeles California 90067
Medical Associates Research Group San Diego California 92123
Gastroenterology Associates of Fairfield County Bridgeport Connecticut 06606
Connecticut Gastroenterology Institute Bristol Connecticut 06010-0977
Litchfield County Gastroenterology Associates, LLC Torrington Connecticut 06790
Clinical Research of West Florida Clearwater Florida 33765
University Clinical Research DeLand Florida 32720
Research Consultants Group Hialeah Florida 33016
Borland-Groover Clinic Jacksonville Florida 32256
Miami Research Associates Miami Florida 33173
Advanced Gastroenterology Associates Palm Harbor Florida 34684
Shafran Gastroenterology Winter Park Florida 32789
Florida Medical Clinic Zephyrhills Florida 33542
Rockford Gastroenterology Rockford Illinois 61107
Community Clinical Research Center Anderson Indiana 46016
Indianapolis Gastroenterology Research Foundation Indianapolis Indiana 46237
Gastrointestinal Clinic of Quad Citites Davenport Iowa 52807
University of Kansas Medical Center Kansas City Kansas 66160-7350
Digestive Disorders Associates Annapolis Maryland 21401
Chevy Chase Clinical Research Chevy Chase Maryland 20815
Washington County Hospital Hagerstown Maryland 21740
Maryland Clinical Trials Severna Park Maryland 21146
Capital Gastroenterology Consultants, PA Silver Springs Maryland 20901
Coastal Research Associates Braintree Massachusetts 02184
Henry Ford Hospital Chesterfield Michigan 48047
Gastrointestinal Associates, PA Jackson Mississippi 39202
Digestive Health Specialists, PA Tupelo Mississippi 38801
Gastroenterology and Hepatology Kansas City Missouri 64131
Center for Digestive & Liver Diseases, Inc. Mexico Missouri 65265
Specialist in Gastroenterology St Louis Missouri 63141
Gastroenterology Specialities Lincoln Nebraska 68503
Long Island Clinical Research Great Neck New York 11021
New York Center for Clinical Research Lake Success New York 11042
Asheville Gastroenterology Associates Asheville North Carolina 28801
University of North Carolina Chapel Hill North Carolina 27579
Charlotte Gastroenterology & Hepatology Charlotte North Carolina 28207
Vital re:Search Greensboro North Carolina 27408
Carolina Research Greenville North Carolina 27834
Bethany Medical Center High Point North Carolina 27262
East Carolina Gastroenterology Jacksonville North Carolina 28546
Wake Research Associates Raleigh North Carolina 27612
Not listed Rocky Mount North Carolina 27804
Hanover Medical Specialists, PA Wilmington North Carolina 28401
Consultants for Clinical Research Cincinnati Ohio 45219
Digestive Health Network Cincinnati Ohio 45220
GI & Liver Diseases Consultants Dayton Ohio 45440
Wells Institute for Health Awareness Kettering Ohio 45429
Oklahoma Foundation for Digestive Research Oklahoma City Oklahoma 73104
Digestive Health Specialists, PA Oklahoma City Oklahoma 73112
West Hills Gastroenterology Associates, PC Portland Oregon 97225
Columbia Gastroenterology Associates Columbia South Carolina 29203
ClinSearch Chattanooga Tennessee 37404
Regional Research Institute Jackson Tennessee 38305
Holston Valley Physicians Kingsport Tennessee 37660
Austin Gastroenterology Austin Texas 78745
Advanced Research Institute Ogden Utah 84405
University of Utah School of Medicine Salt Lake City Utah 84132
Internal Medicine Associates Danville Virginia 24541
Northwest Gastroenterology Associates Bellevue Washington 98004
North Pacific Clinical Research Redmond Washington 98052
Spokane Digestive Disease Center Spokane Washington 99204
Wisconsin Center for Advanced Research Milwaukee Wisconsin 53215

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00269412, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Nov 24, 2019 · Synced Jul 22, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00269412 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →