Abstract
Direct-acting antiviral (DAA) therapy enables a high rate of sustained virologic response (SVR) in patients with hepatitis C virus associated cirrhosis. However, the impact of DAA therapy on liver-related events in patients with cirrhosis is unclear. A total of 350 patients with compensated and decompensated cirrhosis administered DAA therapy at 29 Japanese hospitals were enrolled (Child-Pugh class A [CP-A]: 195 patients, CP-B: 131 patients and CP-C: 24 patients). The SVR rates of patients with CP-A, CP-B and CP-C were 96.9%, 93.1% and 83.3%, respectively (p = 0.006). Seventy patients developed hepatocellular carcinoma (HCC), and male sex, previous HCC treatment, platelet counts < 10.0 × 104/µl, alpha-fetoprotein levels ≥ 5.0ng/ml and CP-C were identified as significant factors in the multivariate analysis. The cumulative HCC occurrence/recurrence rates at 1year were 6.6%/45.2%. The cumulative rate of decompensated cirrhotic events requiring hospital admission at 1year was 9.1%. In the multivariate analysis, CP-B and CP-C were identified as significant factors. During the median observation period of 14.9months, 13 patients died and one patient received liver transplant. The overall survival rates at 1year were 98.4% in patients with CP-A, 96.4% in those with CP-B and 85.6% in those with CP-C (CP-A vs. CP-B: p = 0.759, CP-A vs. CP-C: p = 0.001 and CP-B vs. CP-C: p = 0.005). HCC development and mortality in patients with CP-B were not different from those with CP-A. On the other hand, in patients with CP-C, the development of HCC and decompensated cirrhotic events requiring hospital admission, and death were frequent. University Hospital Medical Information Network (UMIN000036150).
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