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- W2070472912 abstract "A randomized, double-blind, multicenter study (ETV-047) was conducted to evaluate the dose-response relationship of entecavir and compare its antiviral activity and safety with lamivudine in Japanese patients with chronic hepatitis B (CHB).One hundred thirty-seven nucleoside-naive adult patients with CHB were randomized to once-daily oral doses of entecavir 0.01, 0.1, or 0.5 mg or lamivudine 100 mg for 24 weeks. The primary efficacy end point used to evaluate the dose-response relationship was mean change from baseline in serum hepatitis B virus (HBV) DNA level at week 22, as determined by polymerase chain reaction assay.Entecavir demonstrated a clear dose-response relationship, with mean change from baseline in serum HBV DNA level of -3.11, -4.77, and -5.16 log(10) copies/ml with entecavir 0.01, 0.1, and 0.5 mg, respectively. Entecavir 0.5 mg was superior to lamivudine 100 mg for the mean change in HBV DNA level (-5.16 vs. -4.29 log(10) copies/ml; P = 0.007). The overall incidence of adverse events was comparable between treatment groups. Two patients discontinued treatment because of adverse events (one with liver cirrhosis [entecavir 0.5 mg] and one with grade 4 serum alanine aminotransferase (ALT) elevation, nausea, and malaise [lamivudine 100 mg]). Serum ALT flares were observed in four patients; flares were associated with 2 log(10) reductions or more in HBV DNA level and resolved without dose interruption.Entecavir 0.01-0.5 mg is well tolerated and produces a dose-dependent reduction in viral load in nucleoside-naive Japanese patients with CHB. Compared with lamivudine 100 mg, entecavir 0.1 mg demonstrated noninferiority and entecavir 0.5 mg was superior in this population." @default.
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- W2070472912 date "2009-05-23" @default.
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- W2070472912 title "Antiviral activity, dose–response relationship, and safety of entecavir following 24-week oral dosing in nucleoside-naive Japanese adult patients with chronic hepatitis B: a randomized, double-blind, phase II clinical trial" @default.
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- W2070472912 doi "https://doi.org/10.1007/s12072-009-9135-0" @default.
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