Clinical trial Recruiting at 1 site Observational Ages 2 to 100

Evaluation of patients with liver disease

Run by National Institutes of Health Clinical Center (CC) · NCT00001971 · Data updated 2026-11-12

This study is trying to learn more about liver diseases by checking in on patients with conditions like hepatitis B, C, and D through regular tests and follow-ups.

Quick facts

Study typeObservational
Ages2 Years to 100 Years
SexAll
Enrollment8050 (estimated)
SponsorNational Institutes of Health Clinical Center (CC)
NIH
Locations1 site (Bethesda, Maryland)
StatusRecruiting
StartedMay 27, 1992
Registry record updatedNovember 9, 2026
Trial IDNCT00001971 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include individuals aged 2 years and older with suspected or confirmed acute or chronic liver disease.

Probably not a fit

Patients with significant medical illnesses that could interfere with prolonged follow-up evaluations may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to evaluate and follow patients with acute and chronic liver diseases, including hepatitis B, C, and D. Participants will undergo routine check-ups, including blood and urine tests, and liver ultrasounds. They will be followed up annually for similar evaluations, with additional tests such as biopsies and genetic analyses potentially requested. The goal is to collect data and samples to better understand the natural history and pathogenesis of liver diseases.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and treatment options for patients with liver diseases.

How similar studies have gone: Other studies have successfully utilized similar observational approaches to understand liver diseases, indicating potential for valuable insights.

Who can join: the full rules

Show full inclusion / exclusion criteria
* INCLUSION CRITERIA:

Affected Subjects

In order to be eligible to participate in this study, an affected participant must meet all of the following criteria:

1. \>=2 years of age.
2. Meets one of the following:

   1. Suspected or evidence of acute or chronic liver disease on evaluation by a referring licensed independent practitioner (LIP), OR
   2. At risk for acute or chronic liver disease

Healthy Volunteers

In order to be eligible to participate in this study, a healthy volunteer must meet all of the following criteria:

1. \>= 18 years of age.
2. In good general health as evidenced by medical history

EXCLUSION CRITERIA:

Affected Participants

An affected participant who meets any of the following criteria will be excluded from participation in this study:

1\. History of significant medical illnesses that might interfere with prolonged follow up evaluation

Healthy Volunteers

A healthy volunteer who meets any of the following criteria will be excluded from participation in this study:

1. Any chronic medical condition, including (but not limited to) heart, kidney, or lung diseases
2. Taking any regular medications or supplements (with the exception of regular multivitamins and/or oral contraceptives)
3. Average alcohol consumption \> 1 drink/day in past 6 months, per self-report
4. History of liver disease (with the exception of neonatal jaundice)
5. History of severe illness, infection or major surgery in the past year
6. History of cancer (with the exception of basal cell carcinoma resected \> 1 year prior to enrollment)
7. BMI \< 18 or BMI \>25
8. Hemoglobin \< 11 (women) or hemoglobin \< 12 (men)
9. ALT \>35 (men) or ALT \>25 (women)
10. Alkaline Phosphatase \>= 150
11. Bilirubin \>2 g/dL
12. HIV positive, Anti-HCV positive, HBsAg positive or Anti-HBc positive
13. Pregnancy
14. Inability to provide informed consent

Where it's running

  • National Institutes of Health Clinical Center
    Bethesda, Maryland, United States
    Recruiting

Study contacts

  • Principal investigator: T. Jake Liang, M.D. — National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
  • Study coordinator: Patricia E Alcivar
  • Email: patricia.alcivar@nih.gov
  • Phone: (301) 435-6121

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.