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·药物经济学·
度伐利尤单抗联合化疗方案一线治疗晚期胆道癌的药物经济学
评价
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霍丽曼 ,段杨洋 ,梁 平 ,单 彬 ,孙晓利 ,冯 锐 (1.河北医科大学第四医院药学部,石家庄 050011;
2.河北医科大学药学院,石家庄 050017;3.天津大学卫生应急学院,天津 300072)
中图分类号 R956;R979.1 文献标志码 A 文章编号 1001-0408(2025)17-2141-07
DOI 10.6039/j.issn.1001-0408.2025.17.10
摘 要 目的 从中国卫生体系角度评估度伐利尤单抗联合化疗方案用于晚期胆道癌一线治疗的经济性。方法 基于TOPAZ-1
临床试验数据,构建包含无进展生存、疾病进展(PD)及死亡三状态的马尔可夫模型,模拟周期为21 d,研究时限为10年。观察组
患者采用度伐利尤单抗联合吉西他滨+顺铂化疗方案,对照组患者使用安慰剂联合相同化疗方案。评估指标为质量调整生命年
(QALY)与增量成本-效果比(ICER),设定意愿支付(WTP)阈值为3倍2024年中国人均国内生产总值(GDP)(287 247元/QALY),
并开展敏感性分析与情境分析。结果 基础分析结果显示,观察组相对于对照组方案的ICER为1 166 344.46元/QALY,显著高于
WTP阈值,不具备经济性。单因素敏感性分析结果表明,PD状态效用值、贴现率、度伐利尤单抗成本及无进展生存状态效用值为
影响ICER的主要因素。概率敏感性分析结果显示,在上述WTP阈值下,该方案的可接受概率为0,进一步验证了基础分析结果的
稳健性。情境分析中,考虑患者援助计划后,ICER下降至235 885.16元/QALY,低于上述WTP阈值,表明该方案在援助机制支持
下具备经济性。然而,在以 3 倍 2024 年甘肃省(2024 年全国 GDP 最低省份)人均 GDP(158 475 元/QALY)设定的区域 WTP 阈值
下,ICER仍高于WTP阈值,不具备区域经济性。结论 在当前价格水平下,度伐利尤单抗联合化疗方案用于晚期胆道癌一线治疗
在中国不具备经济性;虽然引入患者援助计划可显著降低ICER,使其在以3倍2024年中国人均GDP作为的WTP阈值下具备经济
性,然而在低收入地区,受限于较低的支付能力,该方案仍不具备经济性。
关键词 度伐利尤单抗;化疗;晚期胆道癌;一线治疗;马尔可夫模型;药物经济学;成本-效用分析
Pharmacoeconomic evaluation of durvalumab combined with chemotherapy as first-line therapy for
advanced biliary tract cancer
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HUO Liman ,DUAN Yangyang ,LIANG Ping ,SHAN Bin ,SUN Xiaoli ,FENG Rui (1. Dept. of Pharmacy,
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the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China;2. School of Pharmacy, Hebei
Medical University, Shijiazhuang 050017, China;3. School of Health Emergency Management, Tianjin
University, Tianjin 300072, China)
ABSTRACT OBJECTIVE To assess the cost-effectiveness of durvalumab combined with chemotherapy as a first-line treatment
for advanced biliary tract cancer from the perspective of the Chinese healthcare system. METHODS Using data from the TOPAZ-1
clinical trial, a three-state Markov model comprising progression-free survival (PFS), progressive disease (PD) and death was
developed, with a cycle length of 21 days and a 10-year time horizon. Patients in the observation group received durvalumab in
combination with gemcitabine and cisplatin, whereas those in the control group received placebo plus the same chemotherapy
regimen. The evaluation indexes were quality-adjusted life year (QALY) and the incremental cost-effectiveness ratio (ICER). The
willingness-to-pay (WTP) threshold was set at three times the 2024 Chinese per capita gross domestic product (GDP) (287 247
yuan/QALY). The sensitivity analyses, along with scenario analyses, were performed. RESULTS In the base-case analysis, the
ICER of observation group compared to control group was 1 166 344.46 yuan/QALY, far exceeding the WTP threshold, indicating
that the regimen was not cost-effective. One-way sensitivity analysis identified the PD state utility, discount rate, cost of
durvalumab, and PFS state utility as the main drivers of ICER variation. Probabilistic sensitivity analysis showed that, at the above
WTP threshold, the probability of the acceeptance of this regimen was 0, further supporting the robustness of the base-case
findings. In the scenario analysis, inclusion of a patient
Δ 基金项目 国家卫生健康委创新药物上市后临床研究科研专项
assistance program reduced the ICER to 235 885.16 yuan/
(No.WKZX2024CX501218);河北省卫生健康委医学科学研究课题
QALY, below the above WTP threshold, suggesting cost-
(No.20241142)
*第一作者 主管药师,硕士。研究方向:临床药学、药物经济学、 effectiveness under this assistance program. However, when
循证药学。E-mail:48501562@hebmu.edu.cn applying a regional WTP threshold set at three times the per
# 通信作者 主任药师,博士研究生。研究方向:临床药学、药事管 capita GDP (158 475 yuan/QALY) of Gansu Province (the
理、循证药学、药物经济学。E-mail:48100995@hebmu.edu.cn province with the lowest GDP in China in 2024), the ICER
中国药房 2025年第36卷第17期 China Pharmacy 2025 Vol. 36 No. 17 · 2141 ·

