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Completed Phase 2 Interventional Results available

Study of CB-183,315 in Participants With Clostridium Difficile Infection

ClinicalTrials.gov ID: NCT01085591

Public ClinicalTrials.gov record NCT01085591. 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 Sep 8, 2026, 2:28 PM 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 Randomized, Double-Blinded, Active-Controlled, Dose Ranging Study of CB-183,315 in Patients With Clostridium Difficile Infection.

Brief summary

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

This is a randomized, double-blind, single-placebo, active-controlled, dose ranging parallel group design with 3 arms. Two dose regimens of CB-183,315 dosed twice daily will be compared with the active comparator oral vancomycin (125 milligrams (mg ) four times daily). Participants with diarrhea at risk for Clostridium difficile infection (CDI) \[for example, received prior or concomitant antibiotic(s)\] will be identified and tested for C. difficile toxin in stool using an enzyme immunoassay (EIA), or polymerase chain reaction (PCR) per the usual standard of care. Eligible participants will be consented, undergo baseline evaluations, and will be randomized in a blinded fashion to one of 3 treatment arms. Participants will be randomized to receive either 125 mg CB-183,315 twice daily alternating with placebo tablets twice daily, 250 mg CB-183,315 twice daily alternating with placebo tablets twice daily or 125 mg oral vancomycin four times dailyover a period of 10 days in a 1:1:1 fashion.

Study identification

NCT ID
NCT01085591
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Enrollment
210 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
Mar 31, 2010
Primary completion
Apr 12, 2011
Completion
May 12, 2011
Last update posted
Sep 10, 2018

2010 – 2011

United States locations

U.S. sites
22
U.S. states
17
U.S. cities
20
Facility City State ZIP Site status
Providence Hospital Clinical Research Center Washington D.C. District of Columbia
Washington Hospital Center Washington D.C. District of Columbia
Central Florida Internists Saint Cloud Florida
Atlanta Institute for Medical Research, Inc Decatur Georgia
Gastrointestinal Specialists of Georgia PC Marietta Georgia
Wellstar Infectious Disease Marietta Georgia
Idaho Falls Infectious Disease, PLLC Idaho City Idaho
University of Chicago Chicago Illinois
University of Kansas Medical Center Kansas City Kansas
Ochsner Clinic Foundation New Orleans Louisiana
Metropolitan Gastroentrology Group Chevy Chase Maryland
Tufts University School of Medicine Boston Massachusetts
Henry Ford Health System Detroit Michigan
Not listed Keego Harbor Michigan 48320
William Beaumont Hospital Royal Oak Michigan
University of Minnesota Minneapolis Minnesota
Missouri Baptist Medical Center St Louis Missouri
Mercury Street Medical Group - Research Group Butte Montana
DiGiovanna Institute for Medical Education and Research North Massapequa New York
Wake Forest University Health Sciences Winston-Salem North Carolina
MeritCare Clinical Research Fargo North Dakota
Remington Davis Inc. Columbus Ohio

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 NCT01085591, 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 Sep 10, 2018 · Synced Sep 8, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01085591 live on ClinicalTrials.gov.

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