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Comparison of the 48-week efficacy between entecavir and adefovir in HBeAg-positive nucleos(t)ide-naive Asian patients with chronic hepatitis B: a meta-analysis Zhao P; Liu W; Zhao J; Guan QVirol J 2011[Feb]; 8 (ä): 75BACKGROUND: Although entacavir and adefovir were widely used in most Asian countries, there were few conclusions drawn from a meta-analysis for comparing the efficacy between entecavir and adefovir in nucleos(t)ide-naive Asian patients with chronic hepatitis B (CHB). The aim of this study was to evaluate the 48-week efficacy between the two drugs in HBeAg-positive nucleos(t)ide-naive Asian CHB patients with the method of Meta analysis, which was generally accepted by the international as the best evidence for evaluating the efficacy of drugs. METHODS: We searched all data documented in Pubmed, Embase, Wanfang Database and CNKI (China National Knowledge Infrastructure) before November 30, 2010. Heterogeneity was examined by Chi-square test, the relative risk calculated and forest plot drawn. Rates of undetected serum HBV DNA, serum alanine aminotransferase (ALT) normalization, HBeAg clearance and HBeAg seroconversion were analyzed. A total of 6 articles was included. Meta analysis showed that the rate of undetected serum HBV DNA (relative risk, 1.73; 95% confidence interval, 1.38-2.17; P < 0.00001) and that of serum ALT normalization (relative risk, 1.25; 95% confidence interval, 1.06-1.49; P = 0.009) in the entecavir group were higher than those in the adefovir group. However, no statistic significance existed between the two groups in the rate of HBeAg clearance (relative risk, 0.77; 95% confidence interval, 0.44-1.35; P = 0.36), or the rate of HBeAg seroconversion (relative risk, 0.74; 95% confidence interval, 0.28-1.94; P = 0.53). CONCLUSIONS: Entecavir is superior to adefovir in decreasing serum HBV DNA and normalizing ALT but similar with adefovir in clearing HBeAg and encouraging HBeAg seroconversion for the HBeAg-positive nucleos(t)ide-naive Asian patients with chronic hepatitis B. Adefovir can be still used for first-line therapy in these patients.|Adenine/*analogs & derivatives/therapeutic use[MESH]|Antiviral Agents/*therapeutic use[MESH]|Asia[MESH]|Guanine/*analogs & derivatives/therapeutic use[MESH]|Hepatitis B e Antigens/blood/immunology[MESH]|Hepatitis B, Chronic/blood/*drug therapy/immunology[MESH]|Humans[MESH]|Organophosphonates/*therapeutic use[MESH]|Randomized Controlled Trials as Topic[MESH] |
