Ronald Preblick1, W Jacqueline Kwong1, Richard H White2, Samuel Z Goldhaber3. 1. a Health Economics and Outcomes Research, Daiichi Sankyo, Inc ., Parsippany , NJ , USA. 2. b Division of General Medicine, Anticoagulation Service , University of California Davis Health System , Sacramento , CA , USA. 3. c Cardiovascular Division , Brigham and Women's Hospital , Boston , MA , USA.
Abstract
OBJECTIVE: Venous thromboembolism (VTE) is associated with almost 300,000 deaths per year in the United States. Novel oral anticoagulants (NOACs) offer an alternative to warfarin-based therapy without monitoring requirements and with fewer drug and food interactions. Edoxaban, a direct Xa inhibitor, is approved by the Food and Drug Administration (FDA), based upon results of the Hokusai-VTE Phase 3 trial. The trial demonstrated that edoxaban administered once daily after initial treatment with heparin was non-inferior in reducing the risk of VTE recurrence and caused significantly less major and clinically relevant non-major (CRNM) bleeding compared to warfarin. The objective of this study was to evaluate the cost-effectiveness of edoxaban versus warfarin for the treatment of adults with VTE. METHODS: A cost-effectiveness model was developed using patient-level data from the Hokusai-VTE trial, clinical event costs from real-world databases, and drug acquisition costs for warfarin of $0.36 and edoxaban of $9.24 per tablet. RESULTS: From a U.S. health-care delivery system perspective, the incremental cost-effectiveness ratio (ICER) was $22,057 per quality adjusted life year (QALY) gained. Probabilistic sensitivity analysis showed that edoxaban had an ICER <$50,000 per QALY gained relative to warfarin in 67% of model simulations. The result was robust to variation in key model parameters including the cost and disutility of warfarin monitoring. CONCLUSION: Despite its higher drug acquisition cost, edoxaban is a cost-effective alternative to warfarin for the treatment of VTE.
OBJECTIVE:Venous thromboembolism (VTE) is associated with almost 300,000 deaths per year in the United States. Novel oral anticoagulants (NOACs) offer an alternative to warfarin-based therapy without monitoring requirements and with fewer drug and food interactions. Edoxaban, a direct Xa inhibitor, is approved by the Food and Drug Administration (FDA), based upon results of the Hokusai-VTE Phase 3 trial. The trial demonstrated that edoxaban administered once daily after initial treatment with heparin was non-inferior in reducing the risk of VTE recurrence and caused significantly less major and clinically relevant non-major (CRNM) bleeding compared to warfarin. The objective of this study was to evaluate the cost-effectiveness of edoxaban versus warfarin for the treatment of adults with VTE. METHODS: A cost-effectiveness model was developed using patient-level data from the Hokusai-VTE trial, clinical event costs from real-world databases, and drug acquisition costs for warfarin of $0.36 and edoxaban of $9.24 per tablet. RESULTS: From a U.S. health-care delivery system perspective, the incremental cost-effectiveness ratio (ICER) was $22,057 per quality adjusted life year (QALY) gained. Probabilistic sensitivity analysis showed that edoxaban had an ICER <$50,000 per QALY gained relative to warfarin in 67% of model simulations. The result was robust to variation in key model parameters including the cost and disutility of warfarin monitoring. CONCLUSION: Despite its higher drug acquisition cost, edoxaban is a cost-effective alternative to warfarin for the treatment of VTE.
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