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  • Title: Pegylated interferon plus ribavirin combination therapy for chronic hepatitis C with high viral load of serum hepatitis C virus RNA, genotype 1b, discontinued on attaining sustained virological response at week 16 after onset of acute pancreatitis.
    Author: Kim SR, Imoto S, Mita K, Taniguchi M, Sasase N, Muramatsu A, Kudo M, Kitai S, El-Shamy A, Hotta H, Hayashi Y.
    Journal: Digestion; 2009; 79(1):36-9. PubMed ID: 19246919.
    Abstract:
    Recent clinical trials have shown that pegylated interferon-alpha (PEG-IFN-alpha) in combination with ribavirin (RBV) improves the rate of sustained virological response (SVR), with over 50% of patients demonstrating a positive response to treatment. However, no SVR has been reported when PEG-IFN/RBV combination therapy is discontinued by week 16, especially in cases of chronic hepatitis with a high viral load of serum hepatitis C virus (HCV) RNA, genotype 1b. Here, we describe SVR in a 67-year-old woman whose PEG-IFN/RBV combination therapy for chronic hepatitis C with a high viral load of serum HCV RNA, genotype 1b, was discontinued after 16 weeks because of the onset of PEG-IFN plus RBV-induced acute pancreatitis. Among viral factors, substitution of amino acid 70 (Arg) and 91 (Leu) in the core region and HCV RNA negativity were observed after 8 weeks. Host factors including low body weight, no alcohol consumption, no coinfection with hepatitis B virus, slight fibrosis, and viral factors including early viral clearance, double wild type in the core region, may have contributed to the SVR irrespective of the discontinuation of the combination therapy at week 16. Moreover, PEG-IFN plus RBV-induced acute pancreatitis might have been related to the SVR.
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