๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-08-27

Unraveling the Mechanisms Underlying Primary Sclerosing Cholangitis Through a Multidisciplinary, Integrative Research Approach (NCT04685200)

๐ŸŸข Recruiting Interventional Protocol ๐Ÿ“Š Observational Clinical Research Sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

Background: Primary sclerosing cholangitis is a rare chronic liver disease. It affects the bile ducts of the liver. It can result in bile duct infections, cirrhosis, cancer, and end stage liver disease. Researchers want to learn more about this disease. Objective: To understand the biological causes of primary sclerosing cholangitis. Eligibility: Adults age 18 and older who have primary sclerosing cholangitis. Design: Participants will be screened with a medical history, physical exam, and blood tests. Participants will give blood, saliva, urine, and stool samples. They will have nasal swabs. They will complete surveys. Participants will get an intravenous (IV) catheter. A plastic tube is inserted into an arm vein. Participants will have a colonoscopy. A tube with a video camera at the end is inserted into the rectum. Participants will have an upper endoscopy. A scope with a light and camera at its tip is used to look inside the upper digestive tract. Participants will have a liver biopsy, entering through the chest wall or a neck vein. Blood is drawn from a blood vessel that carries blood to the liver. A liver tissue sample is taken. Participants will have magnetic resonance imaging or spectroscopy. They will get a contrast agent through an IV. Participants may have an optional bone marrow aspiration. A large needle is inserted into the hip to withdraw marrow. Participants will have a liver ultrasound. Participants will complete a 3-day food diary. They will have a nutrition assessment. Participants may give contact details for people who live with them, to also take part in this study. Participation will last for 12 months....

Who can join: To join this study, participants generally need to meet the listed inclusion criteria (5 items) and avoid the listed exclusions (33 items).

Location: National Institutes of Health Clinical Center โ€” Bethesda, Maryland

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Check every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).

Usually NOT eligible if any of the following apply:

  • EXCLUSION CRITERIA: An individual who meets any of the following criteria will be excluded from participation in this study:
  • Pregnant or lactating women or females of child-bearing age not taking measures to prevent pregnancy during the period of study.
  • History of clinical, serologic, or histopathologic evidence supporting etiologies of chronic liver disease other than PSC
  • History of liver transplantation
  • Diagnosis consistent with secondary sclerosing cholangitis (cholelithiasis, bile duct strictures secondary to ischemia, HIV cholangiopathy, etc.).
  • Current or past clinical evidence of decompensated liver disease (e.g. ascites, bleeding esophageal varices, spontaneous bacterial peritonitis, encephalopathy, etc.).
  • History of liver or bile duct lesions concerning for malignancy.
  • Ca-19-9 \>130 U/microL
  • Alpha-fetoprotein level greater than 200 ng/microL.
  • Patients with active bacterial, viral, or fungal, systemic or localized infection.
  • Unwillingness to refrain from ingesting probiotics during study.
  • History of systemic disease not related to PSC that is poorly controlled or associated with declining functional status. Examples include but are not limited to: poorly controlled diabetes mellitus, chronic renal failure with eGFR is \<60 microl/min/1.73m\^2, chronic symptomatic heart failure or severe COPD.

๐Ÿ” Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.

๐Ÿ“ All Participating Trial Locations (1 Sites)

  • National Institutes of Health Clinical Center โ€” Bethesda, Maryland

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
๐Ÿ›๏ธ View Official NIH Record โ†—