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  • Title: Cost-effectiveness of sofosbuvir plus ribavirin therapy for hepatitis C virus genotype 2 infection in South Korea.
    Author: Chung W, Kim KA, Jang ES, Ki M, Choi HY, Jeong SH.
    Journal: J Gastroenterol Hepatol; 2019 Apr; 34(4):776-783. PubMed ID: 30462841.
    Abstract:
    BACKGROUND AND AIM: For genotype 2 chronic hepatitis C (CHC), the efficacy and safety of sofosbuvir plus ribavirin therapy (SOF + RBV) was better than pegylated interferon plus ribavirin therapy (PR) at a greater drug cost. This study investigated the cost-effectiveness of SOF + RBV compared with PR for treatment-naïve genotype 2 CHC in South Korea. METHODS: Using a decision analytic Markov model, a cost-effectiveness analysis comparing SOF + RBV with PR or no treatment for treatment-naïve genotype 2 CHC was performed with probabilistic and deterministic sensitivity analyses from the payer's perspective in 2017. Three cohorts of patients aged 40-49, 50-59, and 60-69 years were simulated to progress through the fibrosis stages F0-F4 to end-stage liver disease, hepatocellular carcinoma, or death. Published and calculated data on the clinical efficacy of the regimen, health-related quality of life, costs, and transition probabilities were used. RESULTS: While the incremental cost-effectiveness ratio for PR was dominant over no treatment, the incremental cost-effectiveness ratios for SOF + RBV were $20 058 for the patients in their 40s, $19 662 for those in their 50s, and $22 278 for those in their 60s compared with PR. Probabilistic sensitivity analysis indicated an 89.0% probability for the SOF + RBV to be cost-effective at a willingness to pay of $29 754.4 (per-capita gross domestic product in 2017) for the patients in their 40s and 94.1% and 89.1% for the patients in their 50s and 60s, respectively. CONCLUSIONS: The SOF + RBV is a cost-effective option for genotype 2 treatment-naïve CHC patients, especially for the patients with liver cirrhosis in Korea.
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