Chronic Hepatitis B carriers (normal LFTs and viral load \< 2 x 10\^4 IU/ml are not recommended to be treated by guidelines as they are at low risk for complications. However, it is unclear if treatment can enhance HBsAg loss which has been shown to be associated with significantly lower risk of complications compared to those without HBsAg loss. Consequently, this is a proof of concept study to determine the possibility of HBsAg loss in Chronic Hepatitis B carriers in a randomised open label clinical trial comparing no treatment to 24 weeks peg-interferon alpha 2a or 48 weeks peginterferon alpha 2a (randomised 1:1:1). The primary endpoint of HBsAg loss will be evaluated 24 weeks after the end of therapy for those on therapy and matched to an equivalent timepoint in the control arm. The sample size calculation is 30 patients in each arm for a 20% difference between any experimental arm and the control arm.
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HBsAg loss
Timeframe: 24 weeks after end of therapy