Treatment for liver detoxification in patients with primary sclerosing cholangitis

Detoxification of the Liver in Primary Sclerosing Cholangitis

Phase 2 Interventional Brigham and Women's Hospital · NCT05835505

This study is testing a new oral medication called BRS201 to see if it can improve liver function and overall health in people with primary sclerosing cholangitis.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment28 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorBrigham and Women's Hospital Academic / other
Drugs / interventionsprednisone
Locations1 site (Chestnut Hill, Massachusetts)
Trial IDNCT05835505 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the efficacy of BRS201 (hydroxocobalamin) in treating patients with primary sclerosing cholangitis (PSC). The study is designed as a cross-over trial where participants will receive the study drug for 4 weeks followed by a placebo for another 4 weeks, with randomization in the order of administration. Participants will take the medication orally twice daily and will have 9 remote study visits, including in-home lab tests conducted by a research nurse. The trial aims to assess the drug's impact on liver function and overall health in PSC patients.

Who should consider this trial

Good fit: Ideal candidates are individuals diagnosed with primary sclerosing cholangitis for at least 6 months and meeting specific liver function criteria.

Not a fit: Patients who are anticipated to need a liver transplant within one year or have advanced liver disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could improve liver function and quality of life for patients with primary sclerosing cholangitis.

How similar studies have performed: Other studies have explored treatments for PSC, but the specific approach of using BRS201 is novel and untested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* A diagnosis of PSC for at least 6 months based upon cholangiography (ERCP or MRCP) demonstrating intrahepatic and/or extrahepatic biliary strictures, beading or irregularity consistent with PSC.
* ALP \> 1.5 times the upper limit of normal (ULN) at screening.
* Subject must either be on a stable dose of ursodeoxycholic acid for \> 6 months prior to screening or have been discontinued \> 4 weeks prior to screening (enrollment of patients who are on UDCA will be limited to 60% of all enrolled patients).

Exclusion Criteria:

* Anticipated need for liver transplant within one year as determined by Mayo PSC risk score
* Evidence of decompensated liver disease such as variceal bleeding, ascites, or hepatic encephalopathy.
* Evidence of advanced liver disease including MELD score \> 10, bilirubin \> 3.0, platelet count \< 100,000; or INR \> 1.4
* Concomitant chronic liver disease including alcohol related liver disease, chronic hepatitis B or C infection, haemochromatosis, Wilson's disease, alpha1-antitrypsin deficiency, non-alcoholic steatohepatitis, autoimmune hepatitis, or primary biliary cholangitis
* Secondary causes of sclerosing cholangitis
* Patients who have a confirmed malignancy or cancer within 5 years except non-melanoma skin cancers
* Treatment with any investigational agents, within two months or 5 half-lives of the investigational product, whichever is longer.
* Active illicit drug or more than moderate alcohol consumption.
* Evidence of bacterial cholangitis within 6 months of enrollment
* In patients with Ulcerative Colitis, or, if Crohn's disease, a need for additional therapy at time of screening.
* Chronic kidney injury (eGFR \< 60)
* Pregnancy or lactation
* Uncontrolled hypertension with a systolic BP \> 140 and a systolic BP \> 90
* Prohibited medications: current use of vitamin C and prednisone
* Patients with a history or risk of cardiovascular conditions, including arrhythmia, long QT syndrome, congestive heart failure, stroke, or coronary artery disease
* Patients with a history of kidney stones
* Congenital or acquired immunodeficiencies
* Other comorbidities including: diabetes mellitus, systemic lupus
* An episode of acute cholangitis within 4 weeks of screening Check eligibility here: https://redcap.link/Checkmyeligibility

Where this trial is running

Chestnut Hill, Massachusetts

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Primary Sclerosing Cholangitis
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.