Response-guided therapy based on reaction to the initial dose using administration of peginterferon .ALPHA.-2a alone or in combination with ribavirin in naieve patients with chronic hepatitis C of serotype 2 and high viral loads

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Other Title
  • Serotype 2型高HCVRNA量のC型慢性肝炎naieve症例における投与初期の反応性に基づいたPeginterferonα-2a単独もしくはRibavirin併用のResponse-Guided Therapy
  • Serotype2型高HCVRNA量のC型慢性肝炎naive症例における投与初期の反応性に基づいたPeginterferonα-2a単独もしくはRibavirin併用のResponse-Guided Therapy
  • Serotype2ガタ コウHCVRNAリョウ ノ Cガタ マンセイ カンエン naive ショウレイ ニ オケル トウヨ ショキ ノ ハンノウセイ ニ モトズイタ Peginterferona-2a タンドク モシクハ Ribavirin ヘイヨウ ノ Response-Guided Therapy
  • Response-guided therapy based on reaction to the initial dose using administration of peginterferon α-2a alone or in combination with ribavirin in naïve patients with chronic hepatitis C of serotype 2 and high viral loads

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Abstract

Treatment with Peginterferon α-2a (PEG-IFNα2a) and α-2b (PEG-IFNα2b) was compared in naïve patients with chronic hepatitis C of serotype 2 and high viral loads (≥5 logIU/ml). In the PEG-IFNα2a group, PEG-IFNα2aα2a alone was administered for 24 weeks in patients negative for HCVRNA at week 4 (rapid viral response: RVR), while ribavirin (RBV) was added for patients who were still HCVRNA-positive at week 4 and given concomitantly with PEG-IFNα2a for further 24 weeks. In the PEG-IFNα2b group, RBV was administered concomitantly with PEG-IFNα2b for 24 weeks. The sustained virological response rates were 93.3% and 66.7% in the PEG-IFNα2a and PEG-IFNα2b groups, respectively, and PEG-IFNα2a alone or in combination with RBV gave similar results to PEG-IFNα2b+RBV. No patients in the PEG-IFNα2a group required discontinuation of administration due to adverse effects. Response-guided therapy based on RVR may be an effective and practical strategy with high efficacy, reduced costs, and fewer adverse events.<br>

Journal

  • Kanzo

    Kanzo 53 (1), 18-27, 2012

    The Japan Society of Hepatology

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