- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02464020
A Pilot Study to Characterize Bile Acid Metabolism and Dysbiosis in Primary Sclerosing Cholangitis
Study Overview
Status
Intervention / Treatment
Detailed Description
Primary Sclerosing Cholangitis (PSC) is a chronic inflammatory and fibrotic disease of the intra and extrahepatic ducts of unknown etiology that predominately occurs in people with Inflammatory Bowel Disease (IBD). One hypothesis is that altered microbiome (bacteria in the gut) in people with IBD are responsible for the inflammation in the liver seen in PSC. Bile acids (BAs) represent a unique mechanism of communication between the host and intestinal microbiome and the liver. Synthesized in the liver, bile acids are metabolized by intestinal bacteria hydroxylases to secondary BAs which then re-enter the portal circulation. Altered metabolism of BAs has been associated with gallstones and colorectal cancer and is hypothesized to play a role in the inflammatory response of certain disease such as IBD and PSC.
IBD has been associated with impairment of bile acid (BA) metabolism. In addition BAs play a role in regulating bacterial growth of the intestine and thus have an effect on the integrity of the intestinal mucosa, which is an essential component of IBD. Perturbations in this system could increase bacterial translocation into the portal system due to loss of protective mucosal factors or bacterial overgrowth.
The overall goal of this study is to assess the changes in BAs metabolism following administration of oral vancomycin. The investigators will also describe the relationship of the intestinal microbiome and BA metabolism in PSC/IBD.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
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Minnesota
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Minneapolis, Minnesota, United States, 55455
- University Of Minnesota Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Documented diagnosis of PSC made by typical clinical, radiographic and biochemical criteria.
- Diagnosis of PSC > 3 months
Exclusion Criteria:
- Antibiotic use within 30 days of initial study visit
- Probiotic use within 30 days of initial study visit
- Extensive ileal disease
- Severe of fulminant IBD
- Diabetes and/or metabolic syndrome
- Chronic disease state deemed unacceptable for the study per investigator review
- Decompensated Cirrhosis
- Females who are pregnant or breastfeeding
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: primary sclerosing cholangitis
Two week course of oral vancomycin 500mg twice a day.
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Oral vancomycin: 500mg suspended in prefilled syringes for oral use
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No Intervention: Control group
A control group of participants without Primary Sclerosing Cholangitis.
Control group will consist of both healthy subjects and subjects with Inflammatory Bowel Disease.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Fecal bile acid composition
Time Frame: 5 days
|
Fecal samples will be collected over 1 week.
Bile acids will be measured on each sample and the average composition of primary to secondary bile acids over the 5 day period will be assessed.
Comparison will be made pre and post vancomycin
|
5 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Microbiome diversity analysis
Time Frame: 5 days
|
Fecal samples collected over the course of a week will be assessed by 16S r-Ribosomal Ribonucleic Acid gene profiling.
Intestinal microbial communities will be assessed pre and post vancomycin administration.
|
5 days
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Byron P Vaughn, MD, University Of Minnesota
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 (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- GI-2015-23049
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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.
Clinical Trials on Primary Sclerosing Cholangitis
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Medical University of WarsawNational Science Centre, PolandRecruitingPrimary Sclerosing Cholangitis (PSC)Poland
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Mayo ClinicActive, not recruiting
-
Cascade Pharmaceuticals, IncCovanceCompletedPrimary Sclerosing Cholangitis (PSC)United States
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HighTide Biopharma Pty LtdCompletedPrimary Sclerosing Cholangitis (PSC)United States, Canada
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Intercept PharmaceuticalsCompletedPrimary Sclerosing Cholangitis (PSC)United States, Italy
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Mirum Pharmaceuticals, Inc.CompletedPrimary Sclerosing Cholangitis (PSC)United States, United Kingdom, Canada
-
Mayo ClinicCompletedPrimary Sclerosing Cholangitis (PSC)United States
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Gilead SciencesCompletedPrimary Sclerosing Cholangitis (PSC)United States, Belgium, Canada, Germany, United Kingdom, Italy, Spain, Denmark, Netherlands, Sweden
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Brigham and Women's HospitalCompletedSclerosing CholangitisUnited States
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Boston Scientific CorporationCompletedPrimary Sclerosing Cholangitis (PSC)United States, Canada, Netherlands, Norway
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University of FloridaCompleted
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The Methodist Hospital Research InstituteRecruiting
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The Canberra HospitalUnknown
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