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10.06.2024 | Original Research Article

Employing Real-World Evidence for the Economic Evaluation of Non-Vitamin K Antagonist Oral Anticoagulants in Patients with Atrial Fibrillation in Thailand

verfasst von: Rungroj Krittayaphong, Unchalee Permsuwan

Erschienen in: Applied Health Economics and Health Policy | Ausgabe 5/2024

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Abstract

Background

This study aimed to assess the cost-effectiveness of non-vitamin K antagonist oral anticoagulants (NOACs) in comparison with warfarin using data from real practice based on the perspective of the health care system in Thailand.

Methods

A four-state Markov model encompassing well-controlled atrial fibrillation (AF), stroke and systemic embolism, major bleeding and death was utilised to forecast clinical and economic outcomes. Transitional probabilities, direct medical costs and utilities were derived from the real-world data of the ‘COOL-AF Thailand’ registry, Thailand’s largest nationwide registry spanning 27 hospitals. The cohort comprised AF patients. The primary outcomes assessed were total costs, life years, quality-adjusted life years (QALYs) and the incremental cost-effectiveness ratio. All costs and outcomes were subject to an annual discount rate of 3.0%. A spectrum of sensitivity analyses was conducted.

Results

The mean age of the cohort was 68.8 ± 10.7 years. The NOACs group incurred a marginally lower total lifetime cost than the warfarin group (247,857 Thai baht [THB] vs 253,654 THB or 7137 USD vs 7304 USD) and experienced gains of 0.045 life years and 0.043 QALYs over the warfarin group. Given the lower cost and higher benefits associated with NOACs, this implies that NOAC treatment is a dominant strategy compared to warfarin for AF patients. At a ceiling ratio of 160,000 THB (4607 USD) per QALY, NOACs presented a 61.2% probability of being cost effective.

Conclusions

Non-vitamin K antagonist oral anticoagulants represent a cost-saving alternative to warfarin in the real clinical practice. However, with a probability of being cost effective below 65%, it suggests some parameter uncertainty regarding their overall cost effectiveness compared to warfarin.
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Metadaten
Titel
Employing Real-World Evidence for the Economic Evaluation of Non-Vitamin K Antagonist Oral Anticoagulants in Patients with Atrial Fibrillation in Thailand
verfasst von
Rungroj Krittayaphong
Unchalee Permsuwan
Publikationsdatum
10.06.2024
Verlag
Springer International Publishing
Erschienen in
Applied Health Economics and Health Policy / Ausgabe 5/2024
Print ISSN: 1175-5652
Elektronische ISSN: 1179-1896
DOI
https://doi.org/10.1007/s40258-024-00891-3