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Modeling cost-effectiveness and health gains of a “universal” versus “prioritized” hepatitis C virus treatment policy in a real-life cohort

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Hepatology 2017

Modeling cost-effectiveness and health gains of a “universal” versus “prioritized” hepatitis C virus treatment policy in a real-life cohort
Loreta A. Kondili, Federica Romano, Francesca Romana Rolli, Matteo Ruggeri, Stefano Rosato, Maurizia Rossana Brunetto, Anna Linda Zignego, Alessia Ciancio, Alfredo Di Leo, Giovanni Raimondo,

First published: Full publication history
DOI: 10.1002/hep.29399

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Abstract
We evaluated the cost-effectiveness of two alternative direct-acting antiviral (DAA) treatment policies in a real-life cohort of hepatitis C virus–infected patients: policy 1, “universal,” treat all patients, regardless of fibrosis stage; policy 2, treat only “prioritized” patients, delay treatment of the remaining patients until reaching stage F3. A liver disease progression Markov model, which used a lifetime horizon and health care system perspective, was applied to the PITER cohort (representative of Italian hepatitis C virus–infected patients in care). Specifically, 8,125 patients naive to DAA treatment, without clinical, sociodemographic, or insurance restrictions, were used to evaluate the policies’ cost-effectiveness. The patients’ age and fibrosis stage, assumed DAA treatment cost of €15,000/patient, and the Italian liver disease costs were used to evaluate quality-adjusted life-years (QALY) and incremental cost-effectiveness ratios (ICER) of policy 1 versus policy 2. To generalize the results, a European scenario analysis was performed, resampling the study population, using the mean European country-specific health states costs and mean treatment cost of €30,000. For the Italian base-case analysis, the cost-effective ICER obtained using policy 1 was €8,775/QALY. ICERs remained cost-effective in 94%-97% of the 10,000 probabilistic simulations. For the European treatment scenario the ICER obtained using policy 1 was €19,541.75/QALY. ICER was sensitive to variations in DAA costs, in the utility value of patients in fibrosis stages F0-F3 post–sustained virological response, and in the transition probabilities from F0 to F3. The ICERs decrease with decreasing DAA prices, becoming cost-saving for the base price (€15,000) discounts of at least 75% applied in patients with F0-F2 fibrosis.

Conclusion: Extending hepatitis C virus treatment to patients in any fibrosis stage improves health outcomes and is cost-effective; cost-effectiveness significantly increases when lowering treatment prices in early fibrosis stages. (Hepatology 2017)

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