Economic evaluation of caspofungin versus liposomal amphotericin B for empirical antifungal therapy in patients with persistent fever and neutropenia in Sweden

Objective: To evaluate the cost-effectiveness of caspofungin versus liposomal amphotericin B (L-AmB) for empirical antifungal therapy in patients with persistent fever and neutropenia in Sweden. Methods: With a decision-analytic model, the expected direct costs, life-years lost and quality adjusted life-years lost were estimated for an average patient in Sweden. Efficacy/tolerability data were obtained from analysis of a randomized, double-blind multinational trial. Life expectancy, medical resource use and unit costs data were gathered from the literature and expert opinion. Probabilistic sensitivity analysis was used to evaluate the impact of uncertainty in data on outcomes. Results: The direct cost with caspofungin amounted to 233,851 SEK (95% uncertainty interval 225,091-242,210) and with L-AmB to 271,921 SEK (262,935-281,363), a difference of 38,070 SEK (31,745-44,811) favouring caspofungin. Treatment with caspofungin resulted in 0.25 (0.01-0.55) quality-adjusted life-years (QALYs) saved in comparison to L-AmB. Given the uncertainty in the estimates there is a >95% probability that caspofungin is economically dominant over L-AmB, i.e. cost-saving and QALY-saving. Conclusion: Given the underlying assumptions and data used, caspofungin is expected to be cost-effective with at least comparable outcomes compared to L-AmB for the empirical treatment of patients with suspected fungal infections in Sweden.

In:Scandinavian Journal of Infectious Diseases: Informa UK Limited43:6-7, s. 504-5140036-55481651-1980

By the author/editor: Naik, Shalini; Lundberg, Johan; Kumar, Ritesh; Sjölin, Jan; Jansen, Jeroen P ...

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