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Trastuzumab deruxtecan versus trastuzumab emtansine for patients with human epidermal growth factor receptor 2-positive metastatic breast cancer: A cost-effectiveness analysis

医学 曲妥珠单抗 肿瘤科 曲妥珠单抗 内科学 转移性乳腺癌 成本效益分析 乳腺癌 成本效益 癌症 风险分析(工程)
作者
Zhu Ying,Kun Liu,Min Wang,Kai-Ling Wang,Hong Zhu
出处
期刊:The Breast [Elsevier BV]
卷期号:66: 191-198 被引量:11
标识
DOI:10.1016/j.breast.2022.10.010
摘要

DESTINY-Breast03 (NCT03529110) was the first global phase III study to assess the antitumor activity of trastuzumab deruxtecan (T-DXd) compared to trastuzumab emtansine (T-DM1) in 2022. However, the balance between efficacy and cost of T-DXd remains unclear. As a result, the present study's goal is to investigate the cost-effectiveness of T-DXd vs T-DM1 as a second-line treatment for patients with HER2-positive MBC from the US and Chinese payer's perspectives.A Markov model with a 20-year time horizon was developed to evaluate the overall cost of patient treatment, incremental cost-effectiveness ratio (ICER), quality-adjusted life-years (QALYs), and life-years (LYs) in the US and China at WTP levels of 150,000/QALY and 37,653/QALY, respectively (3 times GDP per capita in 2021). Key data were gathered from the US government's official website, the Xiangya Hospital of Central South University, and published literature. To determine the model's stability, a sensitivity analysis was performed. A subgroup analysis was also implemented.Compared with T-DM1, treatment with T-DXd generated an additional 1.672 QALYs (2.796 LYs), resulting in an ICER of $13,342/QALY (US) and $186,017/QALY (China). The cost of drugs is the most influential factor in the American and Chinese models. Subgroup analysis revealed that the T-DXd and T-DM1 regimens were more cost-effective at reducing the risk of death in the US and Chinese HER2-positive MBC patients.T-DXd as second-line treatment could gain more health benefits for HER2-positive MBC patients in comparison with T-DM1, which is considered to be cost-effective in the US but not in China.
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