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  • Title: A comparison of telbivudine and entecavir for chronic hepatitis B in real-world clinical practice.
    Author: Tsai MC, Lee CM, Chiu KW, Hung CH, Tung WC, Chen CH, Tseng PL, Chang KC, Wang JH, Lu SN, Yen YH, Hu TH.
    Journal: J Antimicrob Chemother; 2012 Mar; 67(3):696-9. PubMed ID: 22174039.
    Abstract:
    OBJECTIVES: To evaluate the efficacy of telbivudine and entecavir in chronic hepatitis B (CHB) patients over a 1 year period. METHODS: Ninety-seven telbivudine-naive and 98 entecavir-naive CHB patients who had been treated for at least 1 year were enrolled. Serial serum hepatitis B virus (HBV) DNA levels were checked at baseline and at weeks 24 and 48 after treatment. RESULTS: Entecavir and telbivudine groups had similar baseline HBV DNA levels (5.9 ± 1.7 versus 6.0 ± 1.5 log copies/mL, P=0.529). The undetectable rate of HBV DNA after 1 year of treatment was significantly higher in the entecavir group than the telbivudine group (94.9% versus 82.0%, P=0.009). Resistance developed in 6.7% of the telbivudine-naive patients after 1 year compared with none of the entecavir-naive patients (P=0.009). However, there was a significant difference between the telbivudine and entecavir groups in hepatitis B e antigen (HBeAg) seroconversion 24 weeks after treatment (40% versus 12.5%, P=0.007). Multiple logistic regression analysis revealed that baseline alanine aminotransferase (ALT) >200 IU/L (P=0.008) was independently associated with HBeAg seroconversion. Applying the roadmap concept with ALT >2× upper limit of normal at baseline, telbivudine and entecavir had favourable outcomes in PCR negativity, ALT normalization, HBeAg seroconversion and resistance. CONCLUSIONS: In real-world clinical practice, telbivudine resulted in higher rates of HBeAg seroconversion and drug resistance at week 48 compared with entecavir. A combination with baseline ALT plus 24 week HBV DNA levels led to the lowest rates of resistance in HBeAg-positive telbivudine-naive patients and had the highest probability of HBeAg seroconversion in both entecavir- and telbivudine-naive patients.
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