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  • Title: Lamivudine monotherapy and lamivudine plus interferon alpha combination therapy in HBeAg negative chronic hepatitis B not responding to previous interferon alpha monotherapy.
    Author: Akyuz F, Kaymakoglu S, Demir K, Aksoy N, Karaca C, Danalioglu A, Onel D, Badur S, Besisik F, Cakaloglu Y, Okten A.
    Journal: Acta Gastroenterol Belg; 2007; 70(1):20-4. PubMed ID: 17619534.
    Abstract:
    BACKGROUND AND STUDY AIMS: To investigate the efficacy of the combined therapy of lamivudine (LAM) plus alpha interferon (IFN) and LAM monotherapy in HBeAg negative chronic hepatitis B (CHB) patients who were unresponsive to previous IFN monotherapy, and the incidence of YMDD mutations. PATIENTS-METHODS: Forty-five HBeAg negative patients were enrolled in this study. 24 of these were treated with LAM (100 mg/day, PO, for 24 months) alone (group 1) and 21 with combined therapy (IFN-alpha-2b, 10 MU, tiw, SC, for 6 months plus LAM 100 mg/day, PO, for 24 months) (group 2). Normal alanine aminotransferase values and negativity of HBV DNA (molecular hybridization; Digene, USA) were accepted as treatment response. YMDD variants were analyzed at the end of treatment or when clinical breakthrough was observed (Inno-Lipa Innogenetic kit, Belgium). RESULTS: End of follow-up response rate was 29.2%, by ITT in group 1, 19% in group 2 (p > 0.05). Histological activity index was statistically decreased by LAM monotherapy as compared to combination therapy. YMDD mutation rates were 59% in group 1, 62.5% in group 2 (p > 0.05). CONCLUSIONS: Additional IFN-alpha therapy to LAM in HBeAg negative CHB not responding to previous IFN-alpha monotherapy does not increase the response rate compared to LAM monotherapy and does not also decrease the incidence of YMDD mutations.
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