Kamae I, Zhong Y, Hara H, Inoue K, Yasaka M, Reddy VY, Holmes DR, Sakurai M, Gavaghan MB, Amorosi SL, McGovern AM, Priest V, Inoue S, Shibahara H, Akehurst RL. Cost-effectiveness of left atrial appendage closure with Watchman for non-valvular atrial fibrillation patients in Japan.
J Med Econ 2023;
26:1357-1367. [PMID:
37819734 DOI:
10.1080/13696998.2023.2266275]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 09/29/2023] [Indexed: 10/13/2023]
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.
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