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Peginterferon α‐2a (40 kDa): an advance in the treatment of hepatitis B e antigen‐positive chronic hepatitis B

Current therapies for chronic hepatitis B (CHB) have a number of limitations, and better treatment options are needed. Peginterferon α‐2a (40 kDa) is superior to conventional interferon α‐2a in the treatment of chronic hepatitis C. This is the first report on peginterferon α‐2a (40 kDa) in the treatment of CHB. In this phase II study, 194 patients with CHB not previously treated with conventional interferon‐α were randomized to receive weekly subcutaneous doses of peginterferon α‐2a (40 kDa) 90, 180 or 270 μg, or conventional interferon α‐2a 4.5 MIU three times weekly. Twenty‐four weeks of therapy were followed by 24 weeks of treatment‐free follow‐up. All subjects were assessed for loss of hepatitis B e antigen (HBeAg), presence of hepatitis B antibody (anti‐HBe), suppression of hepatitis B virus (HBV) DNA, and normalization of serum alanine transaminase (ALT) after follow‐up.