HBRN: Immune Regulation and Costimulation in Natural History of Chronic Hepatitis B

Hepatitis B Clinical Trial

Official title:

HBRN: Immune Regulation and Costimulation in Natural History of Chronic Hepatitis B

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT01298037
• Other study ID #: DK082864 HBRN Immunology
• Secondary ID: U01DK082864
• Status: Active, not recruiting
• Start date: February 1, 2011
• Est. completion date: December 1, 2024

Study information

• Verified date: January 2024
• Source: University of Pennsylvania
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

This is an ancillary to the NIDDK-sponsored Hepatitis B Research Network (HBRN) Study Cohort Study NCT01263587. This study will examine the balance between immune regulatory and effector responses in hepatitis B-infected participants enrolled in the HBRN study (NCT01263587).

Description:

Aim 1: The clinical and virological status of chronic Hepatitis B (HBV) infection is defined by distinct patterns of immune effector and regulatory responses: The investigators propose that one or more immune regulatory are induced during chronic hepatitis B that define the extent of immune tolerance vs. activation with associated disease activity and viremia. Towards this end, the immune effector and regulatory responses relative to serum HBV DNA, alanine aminotransferase (ALT), Hepatitis B e antigen (HBeAg), Hepatitis B surface antigen (HBsAg) and liver histology will be examined in a cross-sectional manner in patients with chronic HBV and control groups. Aim 2: Clinical hepatitis flares during chronic hepatitis B reflect altered balance between immune regulatory and effector responses.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 201
• Est. completion date: December 1, 2024
• Est. primary completion date: December 1, 2024
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Providing informed consent for this ancillary study.

Exclusion Criteria:

• Children under 18 years of age, participants with anemia
• Hgb<10 or Hct<30, congestive heart failure or chronic lung disease requiring oxygen, active coronary artery disease with unstable angina, sepsis or renal failure, other significant medical conditions, autoimmune disease or immunosuppression.

Related Conditions & MeSH terms

• Hepatitis
• Hepatitis A
• Hepatitis B
• Hepatitis B, Chronic

Locations

Country	Name	City	State
Canada	University of Toronto	Toronto	Ontario
United States	Beth Israel Deaconess Medical Center	Boston	Massachusetts
United States	Massachusetts General Hospital	Boston	Massachusetts
United States	University of North Carolina	Chapel Hill	North Carolina
United States	University of Texas Southwestern	Dallas	Texas
United States	University of Minnesota	Plymouth	Minnesota
United States	Virginia Commonwealth University	Richmond	Virginia
United States	Mayo Clinic Rochester	Rochester	Minnesota
United States	California Pacific Medical Center	San Francisco	California
United States	University of California San Francisco Medical Center	San Francisco	California
United States	Harborview Medical Center	Seattle	Washington
United States	Virginia Mason Medical Center	Seattle	Washington

Sponsors (2)

Lead Sponsor	Collaborator
University of Pennsylvania	National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Countries where clinical trial is conducted

United States,  Canada, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Immune regulatory and activation measures	Immune regulatory and effector responses relative to HBV DNA, ALT and clinical outcome. HBV-specific lymphoproliferative, IFN-gamma and IL 10 responses, T cell activation and costimulatory markers (PD1, CTLA4, CD28, CD127), FoxP3+ Treg frequency, and NK frequency and expression of activating/inhibitory receptors and Dendritic cell frequency.	240 weeks