JAC Advance Access published online on March 1, 2007
Journal of Antimicrobial Chemotherapy, doi:10.1093/jac/dkl551
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Leading article |
Progress in the treatment of chronic hepatitis B: long-term experience with adefovir dipivoxil
Gilead Sciences Inc., 333 Lakeside Dr., Foster City, CA 94404, USA
* Corresponding author. Tel: +1-650-522-5598; Fax: +1-650-522-5890; E-mail: william.delaney{at}gilead.com
Most chronic hepatitis B patients do not undergo a curative response to interferon-
or nucleoside/nucleotide-based regimens and require long-term therapy. Long-term safety, efficacy and resistance profiles of hepatitis B virus (HBV) drugs are therefore crucial issues for patient management. Adefovir dipivoxil is a nucleotide prodrug indicated for the treatment of patients with hepatitis B e antigen positive or hepatitis B e antigen negative chronic hepatitis B, lamivudine-resistant HBV infection, HBV infection pre- or post-liver transplantation, or HlV co-infection. Long-term data from clinical trials of up to 5 years duration of adefovir dipivoxil have recently become available and are reviewed here. These data demonstrate that adefovir dipivoxil therapy results in sustained efficacy and safety in the majority of patients after multiple years of treatment. The efficacy of adefovir dipivoxil in treating lamivudine-resistant HBV and the delayed emergence of adefovir resistance are key factors contributing to the durable response achieved in broad groups of chronic hepatitis B patients.
Key Words: drug resistance , nucleoside , viral hepatitis , seroconversion , phosphonate