Factors affecting efficacy of pegylated interferon alpha-2a in chronic hepatitis C patients with serotype 2

  • Irishio Keiko
    Department of Clinical Research, Ikeda Municipal Hospital
  • Imai Yasuharu
    Department of Gastroenterology, Ikeda Municipal Hospital
  • Mita Eiji
    Department of Gastroenterology and Hepatology, National Hospital Organization, Osaka National Hospital
  • Toyama Takashi
    Department of Gastroenterology and Hepatology, National Hospital Organization, Osaka National Hospital
  • Kuzushita Noriyoshi
    Department of Gastroenterology and Hepatology, National Hospital Organization, Osaka National Hospital
  • Nagase Toshihiko
    Department of Internal Medicine, Suita Municipal Hospital
  • Doi Yoshinori
    Department of Gastroenterology, Otemae Hospital
  • Yamada Akira
    Department of Gastroenterology, Sumitomo Hospital
  • Kato Michio
    Department of Internal Medicine, National Hospital Organization, Minami Wakayama Medical Center
  • Fukuda Kazuto
    Department of Gastroenterology, Ikeda Municipal Hospital
  • Igura Takumi
    Department of Gastroenterology, Ikeda Municipal Hospital
  • Sawai Yoshiyuki
    Department of Gastroenterology, Ikeda Municipal Hospital
  • Kogita Sachiyo
    Department of Gastroenterology, Ikeda Municipal Hospital
  • Hiramatsu Naoki
    Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine
  • Takehara Tetsuo
    Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine
  • Hayashi Norio
    Department of Gastroenterology, Kansai Rosai Hospital

Bibliographic Information

Other Title
  • セロタイプ2型のC型慢性肝炎に対するPEG-IFNα-2a単独療法の有効性に関する検討
  • セロタイプ 2ガタ ノ Cガタ マンセイ カンエン ニ タイスル PEG IFN アルファ 2a タンドク リョウホウ ノ ユウコウセイ ニ カンスル ケントウ

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Abstract

We retrospectively investigated factors affecting efficacy of peginterferon alpha-2a in 70 patients with chronic hepatitis C with serotype 2. Overall sustained virological response (SVR) rate was 77.1% by intent-to-treat analysis. SVR rates were 89.6% and 90.9% when negativity of serum HCV-RNA was obtained at 4 and 8 weeks after beginning the treatment, respectively, whereas SVR rate in patients whose serum HCV-RNA was positive at 8 weeks was 20.0%. Multivariate regression analysis revealed that pretreatment serum HCV-RNA level and negativity of HCV-RNA at 8 weeks after initiating treatment were independent factors associated with SVR. The SVR rate of patients with serum HCV-RNA level less than 1000 KIU/mL was 88.7%. These results suggest that high SVR rate can be expected in patients with pretreatment serum HCV-RNA level under 1000 KIU/mL and negative serum HCV-RNA at 8 weeks after beginning the treatment in patients with serotype 2 chronic hepatitis C.<br>

Journal

  • Kanzo

    Kanzo 52 (4), 236-243, 2011

    The Japan Society of Hepatology

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