Abstract
Sustained virological response (SVR) to antiviral therapy for hepatitis C virus (HCV) correlates with changes in biochemical measures of liver function. However, little is known about the long-term effects of SVR on liver fibrosis. We investigated the effects of HCV therapy on fibrosis, based on the Fibrosis-4 (FIB4) score, over a 10-year period. We collected data from participants in the Chronic Hepatitis Cohort Study-a large observational multicenter study of patients with hepatitis at 4 US health systems-from January 1, 2006, through December 31, 2013. We calculated patients' FIB4 score and the aminotransferase-to-platelet ratio index (APRI) score over a 10-year period. Of 4731 patients with HCV infection, 1657 (35%) were treated and 755 (46%) of these patients achieved SVR. In propensity score-adjusted analyses, we observed significant longitudinal changes in FIB4 score that varied with treatment and response to treatment. In patients achieving SVR, FIB4 scores decreased sharply, remaining significantly lower over the 10-year period than in untreated patients or patients with treatment failure (P < .001). In independent analyses, men and patients with HCV genotype 1 or 3 infections had higher FIB4 scores than women or patie...Continue Reading
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