十年来,易布鲁替尼用于有或没有TP53异常的CLL:研究人员赞助的第二阶段研究的最终报告
Andy Itsara1, Victoria M Rogness2, Laura Samples3
1Amgen Inc., Huntsville, Alabama, United States.
Blood
|December 17, 2025
概括
长期的易布鲁替尼治疗对慢性淋巴细胞白血病 (CLL) 患者,包括高风险TP53异常患者,显示出持久的益处. 在十年的随访期间,观察到持久的反应和无进展的存活率.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 临床试验 临床试验
背景情况:
- 布鲁顿的氨酸激酶 (BTK) 抑制剂在慢性淋巴细胞白血病 (CLL) 中提供了改善的结果.
- 对于在CLL中持续使用BTK抑制剂治疗的长期数据有限.
- 高风险的CLL,定义为TP53异常或年龄较大,存在治疗挑战.
研究的目的:
- 在高风险的CLL患者中报告单剂伊布鲁替尼的最终长期结果.
- 在10年的随访期内评估无进展生存 (PFS) 和整体生存 (OS).
- 评估TP53异常和最小残留疾病 (MRD) 对长期结果的影响.
主要方法:
- 最终分析了84名患有TP53异常或年龄≥65岁的患者,每天接受IBRUTINIB治疗.
- 随访时间中位数为10.0年,数据收集到2024年7月31日.
- 每年通过外周血流细胞计量量化的最小残留疾病 (MRD).
主要成果:
- 中位数PFS为7.2年;中位数OS没有达到.
- 对于患有TP53异常的患者,PFS的中位数为5.6年,10年生存率为51.3%.
- 无法检测的MRD (uMRD) 在15.5%的患者中实现,其中一些患者维持 uMRD超过8年.
结论:
- 易布鲁替尼在十年内显示出持久的疗效和加深高风险CLL的反应.
- 长期存活的好处是显而易见的,即使在TP53异常患者中也是如此.
- 需要进行前性研究,以确定维持UMRD的患者是否可以安全地停止治疗.
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