Health and economic impact of the 21-Valent pneumococcal conjugate vaccine (V116) for adults in Japan: A delta price approach.

IF 2.9 4区 医学 Q2 HEALTH CARE SCIENCES & SERVICES
Peter P Mueller, Atsushi Tajima, Kelsie Cassell, Taizo Matsuki, Nicole Cossrow, Zinan Yi, Kelly D Johnson, Kwame Owusu-Edusei
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引用次数: 0

Abstract

Introduction: This study analyzed the health and economic impact of the 21-valent pneumococcal conjugate vaccine (V116) and the 20-valent pneumococcal conjugate vaccine (PCV20), as well as their relative cost-effectiveness, in Japanese adults aged 65 years using a delta pricing approach.

Methods: A Markov model was employed to simulate the movement of the Japanese population among 4 health states: healthy, pneumococcal disease (consisting of invasive pneumococcal disease [IPD] with or without meningitis and non-bacteremic pneumococcal pneumonia [NBPP]), post-meningitis sequelae (PMS), and death. The model was populated with publicly available demographic and epidemiologic data, stratified by risk level. Pneumococcal serotype distribution and vaccine effectiveness, as well as direct and indirect treatment costs and health-related utilities, were derived from published sources. The model used a lifetime horizon and 2% discounting of costs and life-years. Costs were adjusted to 2023 values in Japanese yen (¥). Outcomes were cases and deaths, life-years and quality-adjusted life-years (QALYs), vaccination and treatment costs, and incremental cost-effectiveness ratios (ICERs). The range over which V116 was cost-saving and cost-effective was determined.

Results: Compared to PCV20, V116 averted an additional 28 cases of IPD, 918 cases of NBPP, 5 deaths from IPD, and 51 deaths from NBPP over the lifetime of a single age 65 cohort. Life-years and QALYs gained were 1,019 and 642, respectively, relative to PCV20; V116 saved ¥733 million in direct medical costs and ¥557 million in indirect costs, compared to PCV20. V116 was found to be cost-saving at price premiums up to ¥1,322 (payer perspective) or ¥2,327 (societal perspective) and remained below a willingness-to-pay threshold of ¥5 million/QALY for premiums up to ¥7,113 (payer perspective) or ¥8,117 (societal perspective).

Conclusions: V116 is projected to provide more population health benefits in Japan than PCV20, and to be cost-effective at a variety of price premiums.

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来源期刊
Journal of Medical Economics
Journal of Medical Economics HEALTH CARE SCIENCES & SERVICES-MEDICINE, GENERAL & INTERNAL
CiteScore
4.50
自引率
4.20%
发文量
122
期刊介绍: Journal of Medical Economics'' mission is to provide ethical, unbiased and rapid publication of quality content that is validated by rigorous peer review. The aim of Journal of Medical Economics is to serve the information needs of the pharmacoeconomics and healthcare research community, to help translate research advances into patient care and be a leader in transparency/disclosure by facilitating a collaborative and honest approach to publication. Journal of Medical Economics publishes high-quality economic assessments of novel therapeutic and device interventions for an international audience
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