Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 3 Interventional Results available

Rifaximin 3 Times/Day (TID) for Non-Constipation Irritable Bowel Syndrome (IBS)

ClinicalTrials.gov ID: NCT00731679

Public ClinicalTrials.gov record NCT00731679. 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 Oct 21, 2026, 5:44 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

A Phase 3, Randomized, Double-blind, Placebo-Controlled, Multicenter Study to Assess the Efficacy and Safety of Rifaximin 550 mg TID in the Treatment of Subjects With Non-Constipation Irritable Bowel Syndrome

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

To evaluate the efficacy of a 14-day course of rifaximin given 3 times a day vs. placebo in providing adequate relief of IBS symptoms.

Study identification

NCT ID
NCT00731679
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Bausch Health Americas, Inc.
Industry
Enrollment
623 participants

Conditions and interventions

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
Jul 2008 (Type not available)
Primary completion
Aug 2009 (Actual)
Completion
Sep 2009 (Actual)
Last update posted
Nov 29, 2019

2008 – 2009

United States locations

U.S. sites
86
U.S. states
29
U.S. cities
81
Facility City State ZIP Site status
Not listed Hueytown Alabama 35023 —
Not listed Phoenix Arizona 85050 —
Not listed Sierra Vista Arizona 85635 —
Not listed Tucson Arizona 85741 —
Not listed Little Rock Arkansas 72204 —
Not listed Little Rock Arkansas 72205 —
Not listed Sherwood Arkansas 72120 —
Not listed Anaheim California 92801 —
Not listed Lancaster California 93534 —
Not listed Los Angeles California 90045 —
Not listed Murrieta California 92562 —
Not listed San Diego California 92108 —
Not listed Lakewood Colorado 80215 —
Not listed Bridgeport Connecticut 06606 —
Not listed Torrington Connecticut 06790 —
Not listed Altamonte Springs Florida 32701 —
Not listed Boynton Beach Florida 33426 —
Not listed Gainesville Florida 32607 —
Not listed Hollywood Florida 33021 —
Not listed Jupiter Florida 33458 —
Not listed Lauderdale Lakes Florida 33319 —
Not listed Maitland Florida 32751 —
Not listed Naples Florida 34102 —
Not listed New Port Richey Florida 34652 —
Not listed Orlando Florida 32806 —
Not listed West Palm Beach Florida 33409 —
Not listed Winter Garden Florida 34787 —
Not listed Winter Park Florida 32708 —
Not listed Topeka Kansas 66606 —
Not listed Shreveport Louisiana 71103 —
Not listed Baltimore Maryland 21215 —
Not listed Hagerstown Maryland 21742 —
Not listed Silver Spring Maryland 20901 —
Not listed Boston Massachusetts 02115 —
Not listed Detroit Michigan 48235 —
Not listed Kalamazoo Michigan 49008 —
Not listed Paw Paw Michigan 49079 —
Not listed Jackson Mississippi 39202 —
Not listed St Louis Missouri 63141 —
Not listed Lebanon New Hampshire 03756 —
Not listed Elizabeth New Jersey 07202 —
Not listed Lumberton New Jersey 08048 —
Not listed Bayside New York 11358 —
Not listed Brooklyn New York 11214 —
Not listed New York New York 10021 —
Not listed Troy New York 12180 —
Not listed Asheboro North Carolina 27203 —
Not listed Charlotte North Carolina 28207 —
Not listed Durham North Carolina 27713 —
Not listed Fayetteville North Carolina 28304 —
Not listed Greensboro North Carolina 27408 —
Not listed High Point North Carolina 27262 —
Not listed Mooresville North Carolina 28117 —
Not listed Raleigh North Carolina 27609 —
Not listed Salisbury North Carolina 28144 —
Not listed Wilmington North Carolina 28401 —
Not listed Fargo North Dakota 58103 —
Not listed Cincinnati Ohio 45219 —
Not listed Cleveland Ohio 44122 —
Not listed Columbus Ohio 43215 —
Not listed Dayton Ohio 45440 —
Not listed Zanesville Ohio 43701 —
Not listed Tulsa Oklahoma 74104 —
Not listed Portland Oregon 97210 —
Not listed Portland Oregon 97225 —
Not listed Lancaster Pennsylvania 17601 —
Not listed Germantown Tennessee 38138 —
Not listed Jackson Tennessee 38301 —
Not listed Johnson City Tennessee 37604 —
Not listed Nashville Tennessee 37203 —
Not listed Austin Texas 78705 —
Not listed Fort Worth Texas 76104 —
Not listed Houston Texas 77074 —
Not listed Houston Texas 77090 —
Not listed Pasadena Texas 77504 —
Not listed San Antonio Texas 78215 —
Not listed San Antonio Texas 78229 —
Not listed San Antonio Texas 78258 —
Not listed Tyler Texas 75701 —
Not listed Ogden Utah 84405 —
Not listed West Jordan Utah 84088 —
Not listed Chesapeake Virginia 23320 —
Not listed Lynchburg Virginia 24502 —
Not listed Bellevue Washington 98004 —
Not listed Spokane Washington 99216 —
Not listed West Bend Wisconsin 53095 —

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

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 10 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00731679, 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 29, 2019 · Synced Oct 21, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00731679 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →