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·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
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                                            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
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