Page 102 - 《中国药房》2026年7期
P. 102
·药物经济学·
佐妥昔单抗联合化疗方案一线治疗CLDN18.2阳性且HER2阴性
晚期胃癌的药物经济学评价
Δ
2 #
黄 鹰 ,黎 苏 ,王 艳 ,黄丹雪 (1. 大连理工大学附属肿瘤医院/辽宁省肿瘤医院胸部放疗科,沈阳
1*
2
2
110042;2.大连理工大学附属肿瘤医院/辽宁省肿瘤医院药学部,沈阳 110042)
中图分类号 R956;R735.2 文献标志码 A 文章编号 1001-0408(2026)07-0920-07
DOI 10.6039/j.issn.1001-0408.2026.07.16
摘 要 目的 从我国卫生体系角度出发,评估佐妥昔单抗联合化疗方案用于紧密连接蛋白18.2(CLDN18.2)阳性且人表皮生长
因子受体2(HER2)阴性晚期胃癌一线治疗的经济性。方法 基于GLOW研究中CLDN18.2阳性且HER2阴性晚期胃癌患者的个
体数据,对佐妥昔单抗联合化疗方案与单纯化疗方案进行比较。采用动态Markov模型进行模拟,模型周期设定为21 d,研究时限
为10年。采用成本-效用分析法,成本与健康产出均采用5%的年贴现率。主要评价指标包括总成本、质量调整生命年(QALY)和
增量成本-效果比(ICER),意愿支付(WTP)阈值为3倍2024年我国人均国内生产总值(287 247元/QALY)。采用单因素敏感性分
析及概率敏感性分析验证模型的稳健性;进一步开展情境分析和阈值分析,探索佐妥昔单抗价格调整对该联合方案经济性的影响
及临界价格。结果 与单纯化疗方案相比,佐妥昔单抗联合化疗方案的ICER为2 611 943.00元/QALY。单因素敏感性分析结果显
示,无进展生存状态效用值、佐妥昔单抗成本和体表面积是影响ICER最主要的3项参数。概率敏感性分析结果显示,当WTP阈
值为2 617 450元/QALY时,该联合方案具有经济性的概率接近50%。情境分析结果显示,仅当佐妥昔单抗价格下调至基准价的
10%时,该联合方案的ICER才能低于上述WTP阈值。阈值分析结果进一步表明,当佐妥昔单抗单价降至3.81元/mg时,该联合方
案具有经济性的概率约为 50%。结论 基于我国卫生体系角度,在当前定价下佐妥昔单抗联合化疗方案作为 CLDN18.2 阳性且
HER2阴性晚期胃癌的一线治疗方案,相较于单纯化疗方案不具备成本-效用优势。当佐妥昔单抗单价降至3.81元/mg及以下时,
该联合方案才具备经济性。
关键词 佐妥昔单抗;晚期胃癌;CLDN18.2阳性;HER2阴性;一线治疗;成本-效用分析;药物经济学
Pharmacoeconomic evaluation of zolbetuximab combined with chemotherapy as first-line treatment for
CLDN18.2-positive and HER2-negative advanced gastric cancer
HUANG Ying ,LI Su ,WANG Yan ,HUANG Danxue (1. Dept. of Thoracic Radiation Oncology, Cancer
1
2
2
2
Hospital of Dalian University of Technology/Liaoning Cancer Hospital & Institute, Shenyang 110042, China;
2. Dept. of Pharmacy, Cancer Hospital of Dalian University of Technology/Liaoning Cancer Hospital &
Institute, Shenyang 110042, China)
ABSTRACT OBJECTIVE To evaluate the cost-effectiveness of zolbetuximab combined with chemotherapy as first-line treatment
for CLDN18.2-positive and HER2-negative advanced gastric cancer from the perspective of China’s healthcare system. METHODS
Based on individual data from the GLOW clinical trial involving CLDN18.2-positive and HER2-negative patients with advanced
gastric cancer, a comparison was made between the zolbetuximab combined with chemotherapy regimen and the chemotherapy
alone regimen. A dynamic Markov model was employed for simulation, with a cycle length of 21 days and a time horizon of ten
years. A cost-utility analysis was employed, with both costs and health outcomes discounted at an annual rate of 5%. The primary
outcome measures included total cost, quality-adjusted life years (QALY) and incremental cost-effectiveness ratio (ICER), with
the willingness-to-pay (WTP) threshold set at three times China’s per capita gross domestic product in 2024 (287 247 yuan/QALY).
One-way analysis and probabilistic sensitivity analysis were performed to assess the robustness of the model. Furthermore, scenario
analysis and threshold analysis were conducted to explore the
Δ 基金项目 辽宁省科技计划联合计划项目(自然科学基金-面上 impact of drug price adjustments on cost-effectiveness and the
项目)(No.2024-MSLH-271) threshold price. RESULTS Compared with the chemotherapy
*第一作者 主管护师。研究方向:护理经济管理。E-mail:
alone regimen, the ICER of zolbetuximab combined with
542893221@qq.com
# 通信作者 副主任药师,硕士生导师,硕士。研究方向:抗肿瘤药 chemotherapy was 2 611 943.00 yuan/QALY. One-way sensitivity
物系统评价、临床药品综合评价。E-mail:huangdanxue@163.com analysis indicated that the utility value of the progression free
· 920 · China Pharmacy 2026 Vol. 37 No. 7 中国药房 2026年第37卷第7期

