- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03462459
Efficacy of Oral Vancomycin Prophylaxis for Prevention of Recurrent Clostridium Difficile Infection
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Many patients who have a CDI experience recurrent or relapsing symptoms. The investigators are studying whether vancomycin in low doses will help prevent further CDI episodes and how this therapy impacts patients' gastrointestinal microbiome and composition.
Patients with a history of past CDI who are receiving antibiotics for a non-CDI condition will be invited to participate. Approximately half of the participants will receive a low-dose capsule of vancomycin and half will receive a placebo. Participants will continue taking the vancomycin/placebo for 5 days after their prescribed antibiotics end.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
Wisconsin
-
Madison, Wisconsin, United States, 53705
- University of Wisconsin-Madison
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Milwaukee, Wisconsin, United States, 53226
- Medical College of Wisconsin
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Willing to provide informed consent.
- Willing to comply with all study procedures and be available for the duration of the study.
- Documented diagnosis of at least one CDI within the last 180 days with treatment completed.
- Currently receiving systemic antibiotics for a non-CDI condition with anticipated duration of no more than 2 weeks.
- Females of childbearing potential must have a negative pregnancy test prior to randomization and agree to use adequate contraception prior to randomization, for the duration of the study, and for 4 weeks following study completion.
- Have received no more than 72 hours of non-CDI antibiotics.
Exclusion Criteria:
- History of hypersensitivity or allergy to oral vancomycin.
- Current use of oral vancomycin
- Patients on concurrent treatment with metronidazole or tetracycline monotherapy for any indication
- Patients diagnosed with inflammatory bowel disorder (Crohn's disease), or bacterial gastrointestinal infection cause by agents other than C. difficile (e.g. Salmonella sp.), toxic megacolon and/or known small bowel ileus.
- Dysphagia (inability to swallow capsules) or unwilling to swallow capsules.
- Major gastrointestinal surgery within 3 months of enrollment (does not include appendectomy or cholecystectomy).
- Any history of total colectomy or bariatric surgery.
- Unable or unwilling to fulfill study requirements.
- Expected life expectancy < 6 months.
- Patients enrolled in another clinical trial with investigational drugs within 30 days prior to randomization.
- Women who are pregnant or breast-feeding.
- Any patient deemed not suitable for study participation at the discretion of the study investigator.
- Diarrhea (3 or more loose stools in a 24 hour period) at enrollment.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Vancomycin
125 mg, oral capsule by mouth, once daily, for the duration of standard-of-care antibiotic therapy plus 5 days
|
Vancomycin capsule, 125 mg
Other Names:
|
Placebo Comparator: Placebo
125 mg placebo capsule by mouth, once daily, for the duration of standard-of-care antibiotic therapy plus 5 days
|
Capsule containing inert (nonactive) material to mimic 125 mg vancomycin capsule
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Recurrent Clostridium difficile infection (CDI)
Time Frame: 8 weeks
|
Determine whether CDI recurrence is decreased in patients taking oral vancomycin as prophylactic therapy in addition to standard-of-care antibiotics that patients are taking for non-CDI reasons.
|
8 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Gut microbiome composition
Time Frame: 8 weeks
|
Study how the gut microbiome is altered in patients receiving vancomycin treatment compared to placebo.
|
8 weeks
|
Vancomycin-resistant enterococcus (VRE) colonization in patients receiving vancomycin vs. placebo
Time Frame: 8 weeks
|
Low-dose exposure to vancomycin and VRE infection has not been studied.
We will examine the incidence of VRE colonization in all patients and determine whether oral vancomycin increases the VRE colonization rate.
|
8 weeks
|
Determine whether Clostridium difficile positivity on any stool sample is a predictor of CDI recurrence.
Time Frame: 8 weeks
|
Stool samples will be tested at baseline, at the last dose date of vancomycin or placebo, at approximately 8 weeks following the last dose of vancomycin or placebo, and as indicated for diarrhea symptoms.
Samples will be collected and tested for the presence of Clostridium difficile.
|
8 weeks
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Nasia Safdar, MD PhD, University of Wisconsin, Madison
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Digestive System Diseases
- Pathologic Processes
- Disease Attributes
- Signs and Symptoms, Digestive
- Gastrointestinal Diseases
- Gastroenteritis
- Colonic Diseases
- Intestinal Diseases
- Bacterial Infections
- Bacterial Infections and Mycoses
- Gram-Positive Bacterial Infections
- Infections
- Communicable Diseases
- Recurrence
- Diarrhea
- Colitis
- Clostridium Infections
- Anti-Infective Agents
- Anti-Bacterial Agents
- Vancomycin
Other Study ID Numbers
- 2017-0927
- A534265 (Other Identifier: UW, Madison)
- 1R01HS025713-01 (U.S. AHRQ Grant/Contract)
- SMPH/MEDICINE/INFECT DIS (Other Identifier: UW Madison)
- Protocol ver 6, 18 Nov 2020 (Other Identifier: UW Madison)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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