Haemophilia : the official journal of the World Federation of Hemophilia · 2015
Cost analysis of prophylaxis with activated prothrombin complex concentrate vs. on-demand therapy with activated factor VII in severe haemophilia A patients with inhibitors, in Spain.
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Villarrubia R, Oyagüez I, Álvarez-Román M T, Mingot-Castellano M E, Parra R, Casado M A
Аннотация
OBJECTIVE: A cost analysis model was developed to compare annual cost of prophylaxis with activated prothrombin complex concentrate (aPCC) vs. on-demand therapy with activated recombinant factor VII (rFVIIa) in severe haemophilia A patients with inhibitors for the Spanish National Health System (NHS).
METHODS: Model inputs were drug cost for prophylaxis (aPCC) and for on-demand treatment (rFVIIa or aPCC); bleeding episodes management (excluding bypassing agent cost); surgical costs and disease management (excluding bleeding episodes). Annual bleeding episodes treated on-demand was assumed to be 25, whereas breakthrough bleeds on prophylaxis was 8. Dose for prophylaxis was 75.72 U kg(-1) , three times per week. The total on-demand dose/bleeding episode was 679.66 μg kg(-1) (rFVIIa) and 235.28 U kg(-1) (aPCC). The average bleeding cost (€2998) considered different bleeding sites (62.5% joints, 28.6% muscles and soft tissues, 3.6% mucocutaneous tissues and 5.4% other areas). A 7.5% deduction was applied to ex-factory drug prices. Unitary costs (€2013) derived from local databases. Sensitivity analyses (SA) were performed.
RESULTS: Annual cost of aPCC prophylaxis (€524,358) was 16% lower than on-demand treatment with rFVIIa (€627,876). Yearly drug costs were €497,017 for aPCC (€73,166 for on-demand treatment and €423,850 for prophylaxis), and €548,870 for rFVIIa. Disease management cost (€2645 per year) and surgical procedures (€708 per year) were common for both strategies. In the SA prophylactic treatment led to savings between €26,225 and €-1,008,960.
CONCLUSION: Prophylaxis with aPCC reduces number of bleeding episodes in severe haemophilia A patients with inhibitors. aPCC prophylaxis resulted in savings in excess of €100,000 per-patient per year, being 16% less costly than on-demand treatment with rFVIIa, for the Spanish NHS.
METHODS: Model inputs were drug cost for prophylaxis (aPCC) and for on-demand treatment (rFVIIa or aPCC); bleeding episodes management (excluding bypassing agent cost); surgical costs and disease management (excluding bleeding episodes). Annual bleeding episodes treated on-demand was assumed to be 25, whereas breakthrough bleeds on prophylaxis was 8. Dose for prophylaxis was 75.72 U kg(-1) , three times per week. The total on-demand dose/bleeding episode was 679.66 μg kg(-1) (rFVIIa) and 235.28 U kg(-1) (aPCC). The average bleeding cost (€2998) considered different bleeding sites (62.5% joints, 28.6% muscles and soft tissues, 3.6% mucocutaneous tissues and 5.4% other areas). A 7.5% deduction was applied to ex-factory drug prices. Unitary costs (€2013) derived from local databases. Sensitivity analyses (SA) were performed.
RESULTS: Annual cost of aPCC prophylaxis (€524,358) was 16% lower than on-demand treatment with rFVIIa (€627,876). Yearly drug costs were €497,017 for aPCC (€73,166 for on-demand treatment and €423,850 for prophylaxis), and €548,870 for rFVIIa. Disease management cost (€2645 per year) and surgical procedures (€708 per year) were common for both strategies. In the SA prophylactic treatment led to savings between €26,225 and €-1,008,960.
CONCLUSION: Prophylaxis with aPCC reduces number of bleeding episodes in severe haemophilia A patients with inhibitors. aPCC prophylaxis resulted in savings in excess of €100,000 per-patient per year, being 16% less costly than on-demand treatment with rFVIIa, for the Spanish NHS.