Abstract
Aims: Left atrial appendage closure (LAAC) has been demonstrated to be cost-saving relative to oral anticoagulants for stroke prophylaxis in patients with non-valvular atrial fibrillation (NVAF) in the United States and Europe. This study assessed the cost-effectiveness of LAAC with the Watchman device relative to warfarin and direct oral anticoagulants (DOACs) for stroke risk reduction in NVAF from a Japanese public healthcare payer perspective. Methods: A Markov model was developed with 70-year-old patients using a lifetime time horizon. LAAC clinical inputs were from pooled, 5-year PROTECT AF and PREVAIL trials; warfarin and DOAC inputs were from published meta-analyses. Baseline stroke and bleeding risks were from the SALUTE trial on LAAC. Cost inputs were from the Japanese Medical Data Vision database. Probabilistic and one-way sensitivity analyses were performed. Results: Over the lifetime time horizon, LAAC was less costly than warfarin (savings of JPY 1,878,335, equivalent to US $17,600) and DOACs (savings of JPY 1,198,096, equivalent to US $11,226). LAAC also provided 1.500 more incremental quality-adjusted life years (QALYs) than warfarin and 0.996 more than DOACs. In probabilistic sensitivity analysis, LAAC was cost-effective relative to warfarin and DOACs in 99.98% and 99.73% of simulations, respectively. LAAC dominated (had higher cumulative QALYs and was less costly than) warfarin and DOACs in 89.94% and 83.35% of simulations, respectively. Conclusions: Over a lifetime time horizon, LAAC is cost-saving relative to warfarin and DOACs for stroke risk reduction in NVAF patients in Japan and is associated with improved quality-of-life.
Original language | English (US) |
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Pages (from-to) | 1357-1367 |
Number of pages | 11 |
Journal | Journal of Medical Economics |
Volume | 26 |
Issue number | 1 |
DOIs | |
State | Published - 2023 |
Keywords
- Cost-effectiveness
- DOACs
- lAAC
- nVAF
- warfarin
- watchman
ASJC Scopus subject areas
- Health Policy