在转移性乳腺癌中,Trastuzumab deruxtecan具有可变的HER2表达:第2期DAISY试验
Fernanda Mosele1,2, Elise Deluche3, Amelie Lusque4
1INSERM U981, Gustave Roussy, Villejuif, France.
Nature medicine
|July 24, 2023
概括
特拉斯图祖马布德鲁克斯坦 (T-DXd) 显示出在HER2过度表达和HER2低转移性乳腺癌中显著的疗效. 虽然HER2表达影响T-DXd的有效性,但其他因素也可能导致治疗反应.
科学领域:
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
- 医学研究 医学研究
背景情况:
- 特拉斯图祖马布德鲁克斯泰坎 (T-DXd) 是一种用于乳腺癌的抗HER2抗体-药物联合体.
- 对T-DXd的确切作用和抵抗机制尚未完全理解.
- 评估不同HER2表达水平的T-DXd疗效至关重要.
研究的目的:
- 评估T-DXd在转移性乳腺癌患者的疗效和安全性,包括HER2过度表达,HER2低和HER2不表达的瘤.
- 研究HER2表达水平与T-DXd治疗反应之间的关系.
- 探索可能影响T-DXd疗效的其他机制.
主要方法:
- 第2期DAISY试验招募了具有不同HER2表达水平的患者 (第1,2,3队列).
- 客观反应率 (ORR) 是主要终点,安全是次要终点.
- 在瘤中分析T-DXd染色和ERBB2表达水平与反应相关.
主要成果:
- 确认的ORR在HER2过度表达的70.6%,在HER2低的37.5%,在HER2不表达的转移性乳腺癌中为29.7%.
- 主要终点在HER2过度表达和HER2低的队列中得到满足.
- T-DXd染色与HER2表达相关,没有发现新的安全问题.
结论:
- 在HER2过度表达和HER2低转移性乳腺癌中,T-DXd显示出显著的疗效.
- HER2表达是T-DXd疗效的关键决定因素,但其他因素也可能起作用.
- 该研究满足了其主要终点,支持T-DXd在治疗这些患者群体中的作用.
相关概念视频
Treatment Resistant Cancers
3.3K
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.3K
Targeted Cancer Therapies
7.7K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.7K


