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KMID : 0614620110570030173
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Korean Journal of Gastroenterology
2011 Volume.57 No. 3 p.173 ~ p.179
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Durability of Sustained Virologic Response in Chronic Hepatitis C: Analysis of Factors Related to Relapse after Sustained Virologic Response with Peginterferon Plus Ribavirin Combination Therapy
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Lee Jang-Eun
Yoon Na-Ri
Kim Jin-Dong
Song Myeong-Jun
Kwon Jung-Hyun
Bae Si-Hyun
Choi Jong-Young
Jung Seung-Won
Yoon Seung-Gyu
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Abstract
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Background/Aims: Pegylated interferon plus ribavirin combination therapy has been the standard of therapy for patients with chronic hepatitis C. Although previous studies have reported long term durability after the sustained virologic response (SVR) with standard therapy for chronic hepatitis C, it is still unclear in Korea. The aim of this study was to evaluate the relapse rate and related factors after SVR to pegylated interferon therapy in Korean patients with chronic hepatitis C.
Methods: A total of 119 chronic hepatitis C patients were treated with pegylated interferon plus ribavirin, and 73 patients achieved SVR (61.3%). Among 73 patients who achieved SVR, 68 patients (genotype 1, n=40; genotype non-1, n=28) were evaluated for virological response after SVR.
Results: SVR rate in genotype 1 and genotype non-1 were 52.5%, and 65.1%, respectively. Relapse after SVR occurred in 5 patients (7.4%) with genotype 1, and the median time to relapse from SVR was 10 months. Univariate analysis revealed that the dose reduction of pegylated interferon (p=0.005) and cirrhosis (p=0.03) were significantly associated with relapse.
Conclusions: These results suggested that the relapse could occur even after SVR achievement in Korean patients with chronic hepatitis C, and the dose reduction of pegylated interferon during treatment or having cirrhosis may increased the risk for relapse.
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KEYWORD
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Hepatitis C, Peginterferon, Sustained virologic response, Durability
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