Zobair M Younossi1, Mendel E Singer2, Heshaam M Mir3, Linda Henry4, Sharon Hunt4. 1. Center for Liver Diseases, Department of Medicine, Inova Fairfax Hospital, Falls Church, VA, USA; Betty & Guy Beatty Center for Integrated Research, Inova Health System, Falls Church, VA, USA. Electronic address: zobair.younossi@inova.org. 2. Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, OH, USA. 3. Center for Liver Diseases, Department of Medicine, Inova Fairfax Hospital, Falls Church, VA, USA; Betty & Guy Beatty Center for Integrated Research, Inova Health System, Falls Church, VA, USA. 4. Betty & Guy Beatty Center for Integrated Research, Inova Health System, Falls Church, VA, USA.
Abstract
BACKGROUND & AIMS: Hepatitis C (HCV) is a common cause of chronic liver disease worldwide. Current standard treatment for genotype-1 patients uses a triple combination of pegylated-interferon alpha (IFN), ribavirin (RBV) and a direct-acting antiviral agent (DAA) with 75-80% sustained virologic response (SVR) rates. The aim is to determine cost-effectiveness of staging-guided vs. treat all HCV genotype-1 patients with interferon-based vs. interferon-free regimens. METHODS: A decision analytic Markov model simulating patients until death compared four strategies for treating HCV genotype-1: Triple therapy (IFN, RBV, DAA) with staging-guidance or treat all, and oral IFN-free regimen with staging-guidance or treat all. Strategies with staging initiated treatment at fibrosis stages F2-F4, with staging repeated every 5 years until age 70. The reference case was a treatment-naïve 50-year-old. Analysis was repeated for 50% increase in cost of oral therapy. Effectiveness was measured in quality-adjusted life years (QALYs). RESULTS: Treatment of all patients with oral IFN-free regimen was the most cost-effective strategy, with an ICER of $15,709/QALY at baseline cost of oral therapy. The ICER remained below $50,000/QALY in sensitivity analyses for baseline and +50% cost of oral therapy scenarios. The treat all strategy was also the most effective strategy; associated with the lowest risk of developing advanced liver disease. CONCLUSIONS: Treating all HCV patients with oral IFN-free regimen reduced the number of patients developing advanced liver disease and increased life expectancy. Additionally, IFN-free regimen without staging may be the most cost-effective approach for treating HCV genotype-1 patients. The efficacy and safety of these regimens must be confirmed using randomized clinical trials.
BACKGROUND & AIMS: Hepatitis C (HCV) is a common cause of chronic liver disease worldwide. Current standard treatment for genotype-1 patients uses a triple combination of pegylated-interferon alpha (IFN), ribavirin (RBV) and a direct-acting antiviral agent (DAA) with 75-80% sustained virologic response (SVR) rates. The aim is to determine cost-effectiveness of staging-guided vs. treat all HCV genotype-1 patients with interferon-based vs. interferon-free regimens. METHODS: A decision analytic Markov model simulating patients until death compared four strategies for treating HCV genotype-1: Triple therapy (IFN, RBV, DAA) with staging-guidance or treat all, and oral IFN-free regimen with staging-guidance or treat all. Strategies with staging initiated treatment at fibrosis stages F2-F4, with staging repeated every 5 years until age 70. The reference case was a treatment-naïve 50-year-old. Analysis was repeated for 50% increase in cost of oral therapy. Effectiveness was measured in quality-adjusted life years (QALYs). RESULTS: Treatment of all patients with oral IFN-free regimen was the most cost-effective strategy, with an ICER of $15,709/QALY at baseline cost of oral therapy. The ICER remained below $50,000/QALY in sensitivity analyses for baseline and +50% cost of oral therapy scenarios. The treat all strategy was also the most effective strategy; associated with the lowest risk of developing advanced liver disease. CONCLUSIONS: Treating all HCV patients with oral IFN-free regimen reduced the number of patients developing advanced liver disease and increased life expectancy. Additionally, IFN-free regimen without staging may be the most cost-effective approach for treating HCV genotype-1 patients. The efficacy and safety of these regimens must be confirmed using randomized clinical trials.
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