Journal
GASTROENTEROLOGY
Volume 139, Issue 4, Pages 1218-+Publisher
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1053/j.gastro.2010.06.042
Keywords
Bayesian Direct and Indirect Comparison; Mixed Treatment Comparison (MTC); Meta-analysis; Hepatitis B Virus (HBV)
Categories
Funding
- Canadian Liver Foundation
- Axcan
- Bristol Myers Squibb
- Gilead
- Novartis
- Roche
- Schering-Plough
- Biogen
- Amgen
- GlaxoSmithKline
- Hoffmann-La Roche
- Bristol-Meyers Squibb
- Gilead Sciences
- Debio
- Vertex Tibotec
- Boehringer Ingelheim
- Bristol-Myers Squibb
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BACKGROUND & AIMS: The relative efficacies of licensed antiviral therapies for treatment-naive chronic hepatitis B (CHB) infection in randomized controlled trials have not been determined. We evaluated the relative efficacies of the first 12 months of CHB treatments. METHODS: Drugs evaluated were lamivudine, pegylated interferon, adefovir, entecavir, telbivudine, and tenofovir, as monotherapies and combination therapies, in treatment-naive individuals. Databases were searched for randomized controlled trials of the first 12 months of therapy in hepatitis B e antigen (HBeAg)-positive and/or HBeAg-negative patients with CHB published in English before October 31, 2009. Bayesian mixed treatment comparisons were used to calculate the odds ratios, including 95% credible intervals and predicted probabilities of surrogate outcomes to determine the relative effects of each treatment. RESULTS: In HBeAg-positive patients, tenofovir was most effective in inducing undetectable levels of HBV DNA (predicted probability, 88%), normalization of alanine aminotransferase (ALT) levels (66%), HBeAg seroconversion (20%), and hepatitis B surface antigen loss (5%); it ranked third in histologic improvement of the liver (53%). Entecavir was most effective in improving liver histology (56%), second for inducing undetectable levels of HBV DNA (61%) and normalization of ALT levels (70%), and third in loss of hepatitis B surface antigen (1%). In HBeAg-negative patients, tenofovir was the most effective in inducing undetectable levels of HBV DNA (94%) and improving liver histology (65%); it ranked second for normalization of ALT levels (73%). CONCLUSIONS: In the first year of treatment for CHB, tenofovir and entecavir are the most potent oral antiviral agents for HBeAg-positive patients; tenofovir is most effective for HBeAg-negative patients.
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