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·药物经济学·
舒格利单抗联合化疗方案一线治疗PD-L1高表达晚期食管鳞状
细胞癌的成本-效用分析
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陈秋平 ,孙 权 ,沈政男 ,唐聪颖 ,刘悸斌 ,李白雪 (1.成都中医药大学临床医学院感染科,成都 610075;
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2.海南中卫健康经济发展研究院,海口 570106;3.成都中医药大学基础医学院,成都 611130)
中图分类号 R956;R735.1 文献标志码 A 文章编号 1001-0408(2024)23-2896-07
DOI 10.6039/j.issn.1001-0408.2024.23.10
摘 要 目的 从中国卫生体系角度出发,评估舒格利单抗联合化疗方案(以下简称“联合方案”)一线治疗程序性死亡受体配体1
(PD-L1)高表达晚期食管鳞状细胞癌(ESCC)的经济性。方法 根据GEMSTONE-304研究的数据构建分期生存模型,模型周期为
3周,研究时限为10年,贴现率为5%。模型的主要输出参数包括总成本、质量调整生命年(QALY)、增量成本和增量成本-效果比
(ICER)。采用成本-效用分析法评价联合方案相对于单用化疗方案的经济性,并通过单因素敏感性分析、概率敏感性分析和情境
分析来评估基础分析结果的稳健性。结果 联合方案相比于单用化疗方案的ICER为288 430.35元/QALY,远高于以1.94倍2023
年中国人均国内生产总值(GDP)作为的意愿支付(WTP)阈值(173 354.52元/QALY)。舒格利单抗的成本是影响ICER的主要因
素。当WTP阈值为1.94倍2023年中国人均GDP(173 354.52元/QALY)时,联合方案相比于单用化疗方案具有经济性的概率为0;
当该药价格下降至6 107.41元/盒(600 mg)后,联合方案相比于单用化疗方案才会体现出经济性。结论 从中国卫生体系角度出
发,联合方案一线治疗PD-L1高表达晚期ESCC患者不具有经济性;当其价格降低50.65%,才具有经济性。
关键词 舒格利单抗;食管鳞状细胞癌;PD-L1高表达;成本-效用分析;分区生存模型;药物经济学
Cost-utility analysis of sugemalimab combined with chemotherapy as first-line treatment for advanced
esophageal squamous cell carcinoma with high PD-L1 expression
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CHEN Qiuping ,SUN Quan ,SHEN Zhengnan ,TANG Congying ,LIU Jibin ,LI Baixue(1. Dept. of Infectious
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Disease, College of Clinical Medicine, Chengdu University of TCM, Chengdu 610075, China;2. Hainan
Zhongwei Institute of Health Economy Development, Haikou 570106, China;3. College of Basic Medicine,
Chengdu University of TCM, Chengdu 611130, China)
ABSTRACT OBJECTIVE To evaluate the cost-effectiveness of the first-line treatment using the combination therapy of
sugemalimab and chemotherapy (hereinafter referred to as the “combination therapy”) for advanced esophageal squamous cell
carcinoma (ESCC) with high programmed death-ligand 1 (PD-L1) expression from the perspective of the Chinese healthcare
system. METHODS A partitioned survival model was constructed based on data from the GEMSTONE-304 study. The model cycle
was set at 3 weeks, with a study duration of 10 years and a discount rate of 5%. The primary output parameters of the model
included total costs, quality-adjusted life year (QALY), incremental costs, and incremental cost-effectiveness ratio (ICER). Cost-
utility analysis was employed to assess the economic feasibility of the combination therapy compared to chemotherapy alone. The
robustness of the base case analysis results was evaluated through univariate sensitivity analysis, probabilistic sensitivity analysis,
and scenario analysis. RESULTS The ICER of the combination therapy compared to chemotherapy alone was 288 430.35
yuan/QALY, significantly exceeding the willingness-to-pay (WTP) threshold of 173 354.52 yuan/QALY which was set at 1.94
times the per capita gross domestic product (GDP) in 2023.
Δ 基金项目 国家自然科学基金面上项目(No.82374314);四川省 The price of sugemalimab was the primary factor influencing
中医药管理局科学技术研究专项课题(No.2023MS604) the ICER. When the WTP threshold was set at 1.94 times the
*第一作者 博士研究生。研究方向:中西医结合防治消化系统疾
per capita GDP (173 354.52 yuan/QALY), the probability of
病。E-mail:qiuqiuchen0921@126.com
the combination therapy being cost-effective compared to
# 通信作者 副教授,硕士生导师,博士。研究方向:中西医结合防
治消化系统疾病。E-mail:baixuelee@163.com chemotherapy alone was 0. The combination therapy only
· 2896 · China Pharmacy 2024 Vol. 35 No. 23 中国药房 2024年第35卷第23期