Sustained Viral Response in Patients Achieved HBsAg Level≤100 IU/ml After Completed Interferon Treatment

Beijing Ditan Hospital160 enrolled

Overview

Chronic hepatitis B (CHB) is a serious liver disease worldwide, and the leading cause of cirrhosis and hepatocellular carcinoma (HCC). HBsAg loss/seroconversion is considered to be the ideal endpoint of antiviral therapy in both HBeAg-positive and -negative patients, and the ultimate treatment goal in CHB, However HBsAg loss occurred rarely by interferon treatment. Although It was reported that in nature history HBsAg level≤100 IU/ml can bring good long term outcomes in patients with chronic hepatitis B. it was not clear whether patients who achieved HBsAg level≤100 IU/ml by interferon treatment could maintain sustained viral response and the state of HBsAg level≤100 IU/ml.

The patients with chronic hepatitis B and achieved HBsAg level≤100 IU/ml after completed interferon treatment will be enrolled and observed for 96 weeks. Serum HBV DNA, HBsAg, anti-HBs, HBeAg, and anti-HBe will be measured every 3 months during the observation period, liver function tests were performed every 3 months also. The liver ultrasonic examination would be taken every 3-6 months. The primary endpoint is HBV DNA reaction. The secondary endpoints is HBsAg loss.

Study Type

OBSERVATIONAL

Enrollment

160

Conditions

Chronic Hepatitis B

Eligibility

Sex: ALL

Medical Language ↔ Plain English

Inclusion Criteria: * patients who had chronic hepatitis B and achieved HBsAg level≤100 IU/ml with undetectable HBV DNA level by interferon treatment Exclusion Criteria: * Active consumption of alcohol and/or drugs * Co-infection with human immunodeficiency virus, hepatitis C virus, or hepatitis D virus * History of autoimmune hepatitis * Psychiatric disease * Evidence of neoplastic diseases of the liver

Outcomes

Primary Outcomes

the rate of sustained viral response

The serum HBV DNA will be tested every 3 month for 96 weeks after completed treatment in chronic hepatitis B patients who achieved serum HBsAg level≤100 IU/ml with HBV DNA undetectable by interferon therapy. The rate of sustained viral response defined HBV DNA level maintaining undetectable during observation period will be evaluated, and HBV reaction is defined as serum HBV DNA reverse back to detectable level.

Time frame: 96 weeks

Secondary Outcomes

the rate of HBsAg loss

The serum HBsAg level will be tested every 3 month after completed treatment. The rate of HBsAg loss defined as HBsAg level reached the value lower than the low limited value will be evaluated after 96 weeks follow-up.