Journal
JOURNAL OF HEPATOLOGY
Volume 51, Issue 6, Pages 984-990Publisher
ELSEVIER
DOI: 10.1016/j.jhep.2009.07.008
Keywords
Insulin resistance; HOMA-IR; Rapid virologic response; Chronic hepatitis C; Genotype 1
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Background/Aims: The rapid decline in hepatitis C virus RNA is crucial for determining the outcome of therapy in patients with genotype 1 chronic hepatitis C. However, the variables influencing the early phase of viral decay are still largely unexplored. We aimed to assess which pre-treatment variable may predict rapid virologic response (RVR) and sustained virologic response (SVR). Methods: We evaluated 90 consecutive non-diabetic patients with genotype 1 chronic hepatitis C without cirrhosis, treated with peginterferon alpha-2b plus ribavirin. Viral load (COBAS Amplicore, Roche) was measured at 1, 4 and 12 weeks after starting treatment, and then 24 weeks after the end of treatment. Results:The overall SVR was 47%. The SVR in patients with RVR was 100%. Age, GGT levels, viral load, steatosis, fibrosis and HOMA-IR were significantly associated with RVR in univariate analysis. After logistic regression, HOMA-IR proved to be the strongest independent predictor of RVR (OR 0.37, 95% CI: 0.164.89; p = 0.027), whereas fibrosis had a weaker independent association with RVR (OR 0.32, 95% CI: 0.1-1.04; p = 0.057). Among the eight pre-treatment variables, both BMI and steatosis were significantly associated with HOMA-IR, either in univariate or in multivariate analyses. Conclusions: Our data suggest that insulin resistance is strongly associated with RVR, thus reflecting the important role played by metabolic factors in the early phase of viral kinetics. HOMA-IR would appear to be a useful tool in predicting RVR and should be evaluated at baseline in all chronic hepatitis C patients before initiating antiviral treatment. (C) 2009 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.
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