Abstract:
:Primary or secondary failure of adefovir dipivoxil (ADV) therapy of chronic hepatitis B is not infrequent. The reasons for suboptimal responses are not well defined. In HIV and hepatitis C virus infection, failure of antiviral drug therapy has been linked with low blood drug levels. We have studied 20 well-defined patients with chronic hepatitis B who were treated with ADV for drug and virus kinetics. Importantly, neither Cmax levels (mean 26 ng/mL, range 14-59 ng/mL) nor the time to maximal drug levels (mean 4 h, range 2-8 h) differed between patients showing a complete virological response to adefovir (n = 10), patients with secondary treatment failure (n = 7) and patients with suboptimal primary response (hepatitis B virus-DNA >10,000 IU/mL after 6 months of treatment; n = 3). Thus, adefovir treatment failure is unlikely to be due to an inability to mount sufficient drug levels in the blood.
journal_name
J Viral Hepatjournal_title
Journal of viral hepatitisauthors
Deterding K,Naesens L,Buti M,Janssen H,Kirschner J,Guerrero A,Reijnders J,Neyts J,Zoulim F,Wedemeyer Hdoi
10.1111/j.1365-2893.2010.01404.xsubject
Has Abstractpub_date
2011-07-01 00:00:00pages
e175-8issue
7eissn
1352-0504issn
1365-2893journal_volume
18pub_type
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