通过分子变化选择的固体瘤患者的西特拉瓦替尼:来自Ib期研究的结果
Lyudmila Bazhenova1, Dong-Wan Kim2, Byoung Chul Cho3
1University of California San Diego Moores Cancer Center, CA 92093, USA.
Future oncology (London, England)
|November 8, 2024
概括
西特拉瓦提尼布在患有特定分子变化的晚期癌症患者中显示出可管理的安全性. 虽然整体反应温和,但该药物表现出临床活性,特别是在RET重组的非小细胞肺癌中.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 临床药理学 临床药理学
背景情况:
- 先进的固体瘤往往存在特定的分子变化,导致瘤发生.
- 针对性疗法为具有这些遗传特征的患者提供了潜在的治疗途径.
- 西特拉瓦提尼布是一种正在研究中的氨酸激酶抑制剂,向多个受体氨酸激酶.
研究的目的:
- 评估西特拉瓦提尼布在患有晚期固体瘤的患者中的临床活性和安全性.
- 评估特定的分子定义患者队列中的反应率.
- 为了确定可能从西特拉瓦替尼治疗中受益的潜在患者群体.
主要方法:
- 第Ib阶段篮子研究设计.
- 招募了113名患有晚期固体瘤和特定分子变化的患者 (MET,AXL,RET,NTRK,DDR2,KDR,PDGFRA,KIT,CBL).
- 西特拉瓦提尼布每天口服一次;主要终点是客观反应率 (ORR).
主要成果:
- 最常见的变化:RET (n=31),CBL (n=31),MET (n=17). 这些是最常见的变化.
- 总的来说,68.9%的患者经历了瘤体积的减少,61.5%的患者有稳定的疾病的最佳客观反应.
- 在RET重排的非小细胞肺癌 (NSCLC) 中观察到的最高ORR (21.1%) ,尽管与零假设相比,它在统计学上并不显著.
- 无进展生存时间 (5.7个月) 和总生存时间 (24.2个月) 的中位数在RET重组NSCLC队列中最长.
- 最常见的治疗出现的不良事件包括腹 (61.1%),疲劳 (50.4%) 和高血压 (46.9%),一般为轻度至中度.
结论:
- 西特拉瓦替尼在具有分子选择先进固体瘤的患者中显示出可管理的安全性.
- 观察到适度的临床活性,特别感兴趣的是RET重排的NSCLC队列.
- 在特定的分子定义的癌症群体中,对西特拉瓦提尼布的进一步研究可能是有必要的.
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