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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 ·
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