Abstract
Some patients with chronic hepatitis C experience virologic relapse even after achieving an end of treatment response. Prolonged therapy can be effective for helping such high-risk patients to avoid relapse. We aimed to identify factors predictive of virologic relapse in chronic hepatitis C patients who have achieved end of treatment response. We analyzed data from 242 chronic hepatitis C patients who achieved end of treatment response with peginterferon plus ribavirin therapy from 2003 to 2007. Virologic relapse was identified in 32 patients (13.2%). We considered age, sex, body mass index, presence of diabetes, hemoglobin, platelet, alanine aminotransferase, stage of fibrosis, baseline hepatitis C virus RNA level, rapid virologic response, and adherence to drugs. For genotype 1 patients, older age (> or = 50 years) and higher baseline RNA level (> or = 2,000,000 IU/mL) were significantly correlated with occurrence of relapse. For genotypes 2 and 3, lower adherence to peginterferon (< 80%) was an independent risk factor for relapse. In chronic hepatitis C patients who had achieved end of treatment response, risk factors for relapse were older age and higher baseline hepatitis C virus RNA level in genotype 1, and lower adherence to peginterferon in genotypes 2 and 3, which may be valuable to individualize duration of therapy.
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