Study on Clinical Program Optimization of Inactive Hepatitis B Surface Antigen (HBsAg) Carriers (IHCs)

Study on Clinical Program Optimization of Inactive Hepatitis B Surface Antigen (HBsAg) Carriers (IHCs)

The Efficacy and Safety of IHCs Treated With Pegylated Interferon α2b Based on Pulse Theray or Sequential Therapy

A multicenter, randomized controlled trial design was used to select patients with chronic hepatitis B in the immune control phase (i.e. HBsAg positive, HBeAg negative, normal ALT and HBsAg≤1000IU/ml, HBV DNA≤2000IU/ml) to enter this study, and to compare the feasibility, effectiveness and safety treated with Pegylated Interferon α2b Continuous therapy or Pulse therapy in immune-controlled chronic hepatitis B patients.

Patients:chronic hepatitis B in the immune control phase (i.e. HBsAg positive, HBeAg negative, normal ALT and HBsAg≤1000IU/ml, HBV DNA≤2000IU/ml). The study patients were divided into two groups.Group A (PEG IFN α- 2b continuous group): PEG IFN was injected subcutaneously once a week from the first day of baseline α- 2b 180 μg. The total course of treatment should not exceed 96 weeks.Group B (PEG IFN α- 2b pulse group): from the first day of baseline, PEG IFN was injected subcutaneously α- 2b 180 μg. Every 8 weeks of injection, stop for 4 weeks, and conduct it periodically.Two groups at baseline, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, 48 weeks, 60 weeks, 72weeks, 84 weeks, 96 weeks and the 12th and 24th weeks after drug withdrawal, and corresponding examinations were carried out at each follow-up.Check and record adverse events and concomitant medication in detail, and evaluate the compliance of subjects; Blood samples were retained and transported to the laboratory for HBV at baseline, 24 weeks, 48weeks, 72, 96, and 12 and 24 after drug withdrawal.DNA quantification and detection of hepatitis B virus markers.The efficacy and safety were evaluated after the study.

The treatment period is 12 weeks as a treatment unit, starting from the first day of baseline, subcutaneous injection of Peg-IFNα-2b 180μg once a week, the total treatment course does not exceed 96 weeks. During treatment, when any efficacy check point reaches the disappearance of HBsAg with or without the appearance of HBsAb, at least 2 treatment units of consolidation therapy are given and then the drug is discontinued. Observed for 24 weeks after treatment.

The treatment period is 12 weeks as a treatment unit. From the first day of baseline, subcutaneous injection of Peg-IFNα-2b 180 μg, every injection for 8 weeks, stop for 4 weeks, periodically, the total treatment course does not exceed 96 weeks. During treatment, when any efficacy check point reaches the disappearance of HBsAg with or without the appearance of HBsAb, at least 2 treatment units of consolidation therapy are given and then the drug is discontinued. Observed for 24 weeks after treatment.

The treatment period is 12 weeks as a treatment unit, starting from the first day of baseline, subcutaneous injection of Peg-IFN α-2b 180μg once a week, or every 8 weeks of injection, 4 weeks off, periodically, the total treatment course does not exceed 96 weeks.

To determine the response rate will be evaluated by HBsAg loss defined as HBsAg level lower than 0.05 IU/ml after 96 week treatment

Inclusion Criteria: age 18 to 65 years, both male and female (including 18 and 65 years old); HBV DNA≤2000 IU/ml and HBeAg negative; HBsAg positive for more than 6 months, and HBsAg≤1000 IU/ml; ALT≤ULN at screening (discontinue liver-protecting enzyme-lowering drugs for at least 2 weeks); A negative urine or serum pregnancy test (for women of childbearing age) within 24 hours before the first dose; B-ultrasound or fibroscan suggest no liver cirrhosis; Willing to accept treatment and sign informed consent. Exclusion Criteria: Participants with other hepatotropic viruses or human immunodeficiency virus co-infection; other chronic non-viral liver diseases or decompensated liver diseases; tumours; drug abuse; severe psychiatric disease; uncontrolled thyroid disease or diabetes; pregnancy or lactation.