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Primary Sclerosing CholangitisPhase 1NCT02464020

A Pilot Study to Characterize Bile Acid Metabolism and Dysbiosis in Primary Sclerosing Cholangitis

A Phase 1 study testing Vancomycin in people with Primary Sclerosing Cholangitis and Inflammatory Bowel Disease, run by University of Minnesota at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The goal of this study is to assess if oral vancomycin can restore the normal bile acid metabolism of people with Primary Sclerosing Cholangitis and Inflammatory Bowel Disease. Study participants will provide blood and stool samples in order to evaluate the bile acid metabolism before a short course of vancomycin and… Read more about this study

Who is it for?
Ages 18 to 80 years
What is being tested?
Vancomycin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
8 participants
Where
1 siteUnited States
Study dates
Jul 2015to 1 Dec 2018
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Documented diagnosis of PSC made by typical clinical, radiographic and biochemical criteria.
  • Diagnosis of PSC > 3 months

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Minnesota Medical Center

    Minneapolis, Minnesota, 55455

Other trials in United States

About this study

The goal of this study is to assess if oral vancomycin can restore the normal bile acid metabolism of people with Primary Sclerosing Cholangitis and Inflammatory Bowel Disease. Study participants will provide blood and stool samples in order to evaluate the bile acid metabolism before a short course of vancomycin and then again after to assess for change. The investigators will also assess the blood and stool of healthy people, and people with IBD (without PSC) as a control group.

Read the 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.

Being tested
Vancomycin
Medical subject headings
Cholangitis, Sclerosing, Inflammatory Bowel Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • VancomycinDrug

    Oral vancomycin: 500mg suspended in prefilled syringes for oral use

Study groups in NCT02464020
Study groupRoleWhat they receive
primary sclerosing cholangitisExperimentalTwo week course of oral vancomycin 500mg twice a day.
Receives: Drug: Vancomycin
Control groupNo interventionA control group of participants without Primary Sclerosing Cholangitis. Control group will consist of both healthy subjects and subjects with Inflammatory Bowel Disease.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Fecal bile acid composition

    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

    Measured: 5 days

Secondary outcomes (1)
  1. Microbiome diversity analysis

    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.

    Measured: 5 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 Jun 2015 (estimated)
  2. Study startJul 2015
  3. Primary completion1 May 2017
  4. Study completion1 Dec 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
8 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02464020
Sponsor's protocol ID
GI-2015-23049
Status last verified
Jul 2020
First submitted
29 May 2015
Last updated
17 Jul 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Vancomycin in people with Primary Sclerosing Cholangitis and Inflammatory Bowel Disease, run by University of Minnesota at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Jul 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Fecal bile acid composition (time frame: 5 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Jul 2020; AzTrials last refreshed its copy on 7 Nov 2026.

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