[Pegylated interferon-alfa 2a with ribavirin in chronic viral hepatitis C (final report)]. / Pegylowany interferon alpha-2a z rybawiryna w leczeniu przewleklego wirusowego zapalenia watroby typu C (raport koncowy z badan).

UNLABELLED: We evaluated the efficacy and safety of peginterferon alfa-2a [40KD] (Peg-IFNalpha-2a) plus ribavirin in patients with chronic hepatitis C in an open-label programme in a routine clinical setting in Poland. Patients received Peg-IFNalpha-2a 180mg/week plus ribavirin 800-1200 mg/d for 48 weeks. Sustained virological response (SVR) was defined as undetectable HCV RNA (<50IU/mL) at the end of follow-up (week 72). 466 adults were enrolled. Most patients (87.3%) had genotype 1 infection. 440 subjects (94,4%) completed treatment. The overall SVR rate was 55.7%. A higher SVR rate was obtained in treatment-naïve patients (58.7%) than in relapsers (47.8%; p=0,048). SVR rates in genotype 1 and non-1 patients were 51.1% and 88.5%, respectively (p<0.001). There were significant higher SVR rates in patients with lower baseline fibrosis (p=0,01). There were no differences in SVRs by gender or viral load. Hemoglobin, leukocyte and neutrophil levels decreased significantly during treatment, but returned to baseline after the end of treatment. ALT levels decreased significantly during treatment in patients with and without an SVR. 38.4% of patients experienced adverse events like neutropenia, anemia, thrombocytopenia, and other. There was one death (severe thrombocytopenia). CONCLUSIONS: The overall SVR achieved in this predominantly genotype 1 population was 55.7%. SVR rates were significantly higher in treatment-naïve patients, those with non-1 genotypes, and in patients with lower baseline fibrosis scores.

A multi-center open study to determine the effect of lamivudine on HBV DNA clearance and to assess the safety of the regimen in patients with chronic hepatitis B infection.

BACKGROUND: Patients with on-going HBV viral replication often present with clinical features of active chronic hepatitis. Until the recent introduction of nucleoside analogues, interferon-alpha was the only approved drug for these patients. One of the former drugs, lamivudine, has been shown in clinical trials in the US and Asia to effectively inhibit the viral polymerase of HBV. Our study was undertaken to assess the efficacy and safety of lamivudine therapy in Polish patients with chronic hepatitis B. MATERIAL/METHODS: Forty-five patients with chronic hepatitis B (HBeAg positive, anti-e negative, HBV-DNA positive by hybridization assay) were enrolled in the study. The patients received 100mg of lamivudine orally, once daily for 12 months. They returned for routine clinical and laboratory control every two weeks during the first months of treatment, and later at 3-month intervals while receiving lamivudine. RESULTS: At the end of treatment, serum HBeAg was not detected in 21 patients (48.8%), and anti-HBe appeared in the serum of 19 patients. 37.2% of the patients in the study group showed sustained suppression of serum HBV DNA at the end of treatment. Lamivudine therapy was well tolerated, with the rate of occurrence of adverse events similar to that observed in other clinical studies. CONCLUSIONS: 12-month lamivudine therapy in this Polish population of patients with chronic hepatitis B induced a high rate of HBeAg seroconversion, accompanied by reduction of HBV-DNA and the normalization of alanine aminotransferase activities.