In order to identify the main routes of hepatitis C (HCV) transmission and to determine the HCV genotype distribution and its dynamics during a 15-year period in Slovenia, HCV genotypes were detected using the INNO-LiPA HCV II (Innogenetics) test for serum samples obtained from 1,504 patients representing 72.6% of all patients with chronic hepatitis C diagnosed from 1993 to 2007. HCV genotype 1 was predominant (56%), followed by genotypes 3, 2, and 4, with a prevalence of 37.8%, 5%, and 1.2%, respectively. HCV genotypes 5 and 6 were not detected in any patient. Patients infected with HCV genotype 3 were significantly younger (mean age 28.9 +/- 8.5 years) than those infected with genotype 1 (mean age 38.9 +/- 14.8 years; P < 0.0001) and those infected with HCV genotype 2 (mean age 50.3 +/- 18.2 years; P < 0.0001). Intravenous drug use was identified as the most frequent possible HCV transmission route (34.3%), followed by medical-related transmission such as transfusion of HCV-contaminated blood or blood products, and hemodialysis (12.5%). Being an intravenous drug user was found to be strongly associated with HCV genotype 3 (OR, 3.71 [95% CI, 2.97-4.65]; P < 0.0001) and reporting infection by transfusion of blood or blood products was found to be strongly associated with HCV genotype 1 (OR, 3.28 [95% CI, 2.18-4.95]; P < 0.0001). During the 15-year period, the proportion of genotype 3 increased substantially, reflecting the fact that the HCV epidemic in Slovenia is driven mostly by intravenous drug use.
Objectives: The combination of pegylated interferon-α and ribavirin is a standard-of-care (SOC) treatment for chronic hepatitis C (CHC), and it achieves a sustained virological response (SVR) in 41-52% of genotype 1 and in 73-79% of genotype 3 patients. In a few clinical trials, the combination of fluvastatin and SOC increased the SVR in genotype 1 patients. Methods: This prospective study enrolled 179 naïve CHC patients. In the fluvastatin group patients received the combination of SOC and fluvastatin 80 mg daily; historical controls matching the study group in genotype, age and gender were treated with the SOC treatment only. Results: On-treatment viral responses as well as the SVR did not differ significantly between the two groups, except for the genotype 1 patients with a high viral load presenting a significantly higher SVR rate in the fluvastatin group (75%) compared to the control group (41%; p = 0.024). Multivariate logistic regression identified hepatitis C virus (HCV) genotype 3 infection (p < 0.001), age ≤40 years (p < 0.001), liver steatosis <5% (p < 0.01) and low viral load (p < 0.001) as independent predictors of an SVR. Conclusion: A combination of fluvastatin and SOC significantly improved the SVR in naïve CHC patients infected with HCV genotype 1 and high viral load, but it did not improve the SVR in patients infected with HCV genotype 3.
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