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Prevention of Travelers' Diarrhea in Subjects Traveling Outside the U.S.

This study has been completed.
Information provided by:
Valeant Pharmaceuticals International, Inc. Identifier:
First received: May 17, 2006
Last updated: December 21, 2009
Last verified: December 2009
The primary objective of this study is to assess the safety and tolerability of rifaximin 600 mg (3 x 200-mg tablets) once daily compared with placebo when taken for 14 days by healthy subjects to prevent travelers' diarrhea (TD) from all causes.

Condition Intervention Phase
Diarrhea Drug: Rifaximin Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Prevention
Official Title: A Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Safety of Rifaximin for the Prevention of Travelers' Diarrhea in Subjects Traveling Outside the United States

Resource links provided by NLM:

Further study details as provided by Valeant Pharmaceuticals International, Inc.:

Primary Outcome Measures:
  • The primary endpoint in this study is the assessment of safety and tolerability of rifaximin 600 mg QD compared to placebo.

Secondary Outcome Measures:
  • A secondary endpoints of this study include assessment of the differences between the 2 treatment groups based upon the proportion of subjects with TD during the 14-day Treatment Period.

Estimated Enrollment: 660
Study Start Date: December 2005
Study Completion Date: September 2008
Primary Completion Date: December 2006 (Final data collection date for primary outcome measure)
Detailed Description:
Travelers' diarrhea (TD) is the most common illness in travelers to the developing world, occurring in 60% or more of international travelers to high-risk areas. It can be quite debilitating for the usual 2 to 4 days of the illness and may lead to disruption of travel plans. Findings from recent studies have indicated that the chronic post-travel illness may prove to be of greater clinical and public health significance than the acute illness. Specifically, persistent diarrhea has been reported in 2% to 10% of travelers developing diarrhea. Moreover, bacterial enterocolitis, including that associated with TD, leads to post-infectious irritable bowel syndrome in 4% to 31% of patients.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  1. Subject is in good health (as determined by medical history)
  2. Subject is planning on traveling anywhere outside the US (except Canada) for at least 5 and no more than 14 days
  3. Subject is scheduled to depart on their planned trip no later than 14 days and no earlier than 4 days after having blood drawn for clinical laboratory assessments and urine collected for a pregnancy test (females of childbearing potential only)

Exclusion Criteria:

  1. Subject has hypersensitivity or allergy to rifaximin or rifampin
  2. Subject has known or suspected alcohol abuse or illicit drug use within 1 year of enrollment
  3. Subject participated in an investigational drug or device study within the 30 days prior to enrollment
  4. Subject received rifaximin in a previous clinical study
  5. Subject received any systemic or gastrointestinal-specific antibiotic within 7 days of the first dose of study drug
  6. Subject received antidiarrheal medication (eg, loperamide, lactobacillus, BSS, Kaopectate®) within 24 hours of the first dose of study drug
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00328380

United States, Florida
Sunshine Medical Center
South Miami, Florida, United States, 33143
United States, Texas
Southwest Doctors, PA
Houston, Texas, United States, 77004
La Porte Family Clinic
La Porte, Texas, United States, 77571
Sponsors and Collaborators
Valeant Pharmaceuticals International, Inc.
  More Information Identifier: NCT00328380     History of Changes
Other Study ID Numbers: RFID3004
Study First Received: May 17, 2006
Last Updated: December 21, 2009

Keywords provided by Valeant Pharmaceuticals International, Inc.:
Travelers' Diarrhea
Escherichia coli
E coli
Enteroaggregative E coli
Enterotoxigenic E coli

Additional relevant MeSH terms:
Signs and Symptoms, Digestive
Signs and Symptoms
Gastrointestinal Diseases
Digestive System Diseases
Intestinal Diseases
Anti-Infective Agents
Gastrointestinal Agents
Nucleic Acid Synthesis Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Anti-Bacterial Agents processed this record on August 22, 2017