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·药物经济学·
PCI 术后双联抗血小板后单用氯吡格雷或阿司匹林维持治疗的
药物经济学评价
Δ
*
骆 兵 ,蒋月云,陈艺莉(中山大学附属第一医院Ⅰ期药物临床试验病区,广州 510080)
#
中图分类号 R956 文献标志码 A 文章编号 1001-0408(2025)23-2952-06
DOI 10.6039/j.issn.1001-0408.2025.23.12
摘 要 目的 从我国卫生体系角度出发,评价经皮冠状动脉介入治疗(PCI)术后患者在双联抗血小板治疗(DAPT)后接受氯吡
格雷或阿司匹林单药维持治疗的经济性。方法 采用Markov模型,研究时限设为25年,循环周期为1年,对氯吡格雷组和阿司匹
林组患者分别进行队列模拟,预测和比较PCI术后患者DAPT后接受氯吡格雷或阿司匹林单药维持治疗方案带来的长期经济与
健康结果,并进行成本-效用分析。以1倍2024年我国人均国内生产总值(GDP)作为意愿支付(WTP)阈值[95 749元/质量调整生
命年(QALY)],计算增量成本-效果比(ICER)。采用单因素敏感性分析和概率敏感性分析验证基础分析结果的稳健性。结果
PCI术后患者DAPT后采用氯吡格雷单药维持治疗能减少死亡事件的发生,而采用阿司匹林单药维持治疗发生卒中和心肌梗死事
件的概率更低。氯吡格雷组方案相较于阿司匹林组方案的ICER为34 644.87元/QALY,小于本研究的WTP阈值。单因素敏感性
分析结果表明,影响基础分析结果较为显著的不确定因素为阿司匹林组无事件转移至死亡概率、氯吡格雷组无事件成本及阿司匹
林组无事件成本。概率敏感性分析结果表明,当WTP阈值为95 749元/QALY时,氯吡格雷组和阿司匹林组方案具有经济性的概
率分别为83%和17%,且氯吡格雷组方案具有经济性的概率随WTP阈值增加而上升。结论 相较于阿司匹林单药维持治疗方案,
在1倍我国2024年人均GDP的WTP阈值下,PCI术后患者DAPT后接受氯吡格雷单药维持治疗的经济性更佳。
关键词 氯吡格雷;阿司匹林;经皮冠状动脉介入治疗;抗血小板治疗;Markov模型;成本-效用分析;药物经济学评价
Pharmacoeconomic evaluation of dual antiplatelet therapy followed by maintenance therapy with
clopidogrel or aspirin after PCI
LUO Bing,JIANG Yueyun,CHEN Yili(Phase Ⅰ Drug Clinical Trial Ward, the First Affiliated Hospital of Sun
Yat-sen University, Guangzhou 510080, China)
ABSTRACT OBJECTIVE From the perspective of China’s health system, to evaluate the cost-effectiveness of maintenance
therapy with clopidogrel or aspirin monotherapy in percutaneous coronary intervention (PCI) patients after dual antiplatelet therapy
(DAPT). METHODS A Markov model was adopted with a research period of 25 years and a cycle period of 1 year. Cohort
simulations were conducted respectively for the clopidogrel group and aspirin group to predict and compare the long-term economic
and health outcomes of PCI patients receiving either clopidogrel or aspirin monotherapy maintenance regimens after DAPT, and
cost-effectiveness analysis was conducted. The willingness-to-pay (WTP) threshold was set at the level of 1 times China’s per
capita gross domestic product (GDP) in 2024[95 749 yuan per quality-adjusted life year (QALY)], and the incremental cost-
effectiveness ratio (ICER) was calculated. The robustness of the basic analysis results was verified by using single-factor sensitivity
analysis and probabilistic sensitivity analysis. RESULTS After PCI, patients received DAPT, clopidogrel monotherapy maintenance
treatment reduced the occurrence of death events, and aspirin monotherapy maintenance treatment had a lower probability of stroke
and myocardial infarction events. The ICER of the clopidogrel group regimen compared with the aspirin group regimen was 34 644.87
yuan/QALY, which was less than the WTP threshold set in this study. The results of univariate sensitivity analysis indicated that
notable uncertainties affecting the basic analysis results were
Δ 基金项目 广东省自然科学基金项目(No.2025A1515012698); the probability of event-free progression to death in the aspirin
中山大学临床医学研究5010计划项目(No.2017003) group, the event-free cost in the clopidogrel group, and the
*第一作者 药师,硕士。研究方向:药物经济学、临床药学。
event-free cost in the aspirin group. The results of probabilistic
E-mail:luob2382261378@163.com
sensitivity analysis indicated that when the WTP threshold
# 通信作者 主任医师,硕士生导师,博士。研究方向:心血管疾病
的临床诊疗。E-mail:lumy1378@163.com was 95 749 yuan /QALY, the economic probabilities of the
· 2952 · China Pharmacy 2025 Vol. 36 No. 23 中国药房 2025年第36卷第23期

