Abstract
Background and Objective
In Italy, the Italian Pharmaceutical Agency (AIFA) criteria used F3–F4 fibrosis stages as the threshold to prioritise the treatment with interferon (IFN)-free regimens, while in genotype 1 chronic hepatitis C (G1 CHC) patients with fibrosis of liver stage 2, an approach with pegylated interferon (PEG-IFN)-based triple therapy with simeprevir was suggested. The key clinical question is whether, in an era of financial constraints, the application of a universal IFN-free strategy in naïve G1 CHC patients is feasible within a short time horizon. The aim of this study is to perform an economic analysis to estimate the cost-utility of the early innovative therapy in Italy for managing hepatitis C virus (HCV)-infected patients.
Methods
The incremental cost-utility analysis was carried out to quantify the benefits of the early treatment approach in HCV subjects. A Markov simulation model including direct and indirect costs and health outcomes was developed from an Italian National Healthcare Service and societal perspective. A total of 5000 Monte Carlo simulations were performed on two distinct scenarios: standard of care (SoC) which includes 14,000 genotype 1 patients in Italy treated with innovative interferon-free regimens in the fibrosis of liver stages 3 and 4 (F3–F4) versus early-treatment scenario (ETS) where 2000 patients were additionally treated with simeprevir plus PEG-IFN and ribavirin in the fibrosis stage 2 (F2) (based on Italian Medicines Agency AIFA reimbursement criteria). A systematic literature review was carried out to identify epidemiological and economic data, which were subsequently used to inform the model. Furthermore, a one-way probabilistic sensitivity was performed to measure the relationship between the main parameters of the model and the cost-utility results.
Results
The model shows that, in terms of incremental cost-effectiveness ratio (ICER) per quality adjusted life year (QALY) gained, ETS appeared to be the most cost-utility option compared with both perspective societal (ICER = EUR11,396) and NHS (ICER = EUR14,733) over a time period of 10 years. The cost-utility of ETS is more sustainable as it extends the time period analysis [ICER = EUR 6778 per QALY to 20 years and EUR4474 per QALY to 30 years]. From the societal perspective, the ETS represents the dominant option at a time horizon of 30 years. If we consider the sub-group population of treated patients [16,000 patients of which 2000 not treated in the SoC, the ETS scenario was dominant after only 5 years and the cost-utility at 2 years of simulation. The one-way sensitivity analysis on the main variables confirmed the robustness of the model for the early-treatment approach.
Conclusion
Our model represents a tool for policy makers and health-care professionals, and provided information on the cost-utility of the early-treatment approach in HCV-infected patients in Italy. Starting innovative treatment regimens earlier keeps HCV-infected patients in better health and reduces the incidence of HCV-related events; generating a gain both in terms of health of the patients and correct resource allocation.
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This analysis was funded by Janssen-Cilag SpA. The authors confirm that the paper is an accurate representation of the study results. FD is an employee of the sponsor and was involved in the study design, data collection and analysis, interpretation of data.
Conflict of interest
FD is employee of Janssen-Cilag SpA.
GT, CC has received consulting fees from Janssen-Cilag SpA, MSD.
AM, RV and FSM declare that there is no conflict of interest regarding the publication of this paper.
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Marcellusi, A., Viti, R., Damele, F. et al. Early Treatment in HCV: Is it a Cost-Utility Option from the Italian Perspective?. Clin Drug Investig 36, 661–672 (2016). https://doi.org/10.1007/s40261-016-0414-y
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DOI: https://doi.org/10.1007/s40261-016-0414-y