基于Venetoclax的低强度疗法在NPM1-突变AML的分子衰竭中
Carlos Jimenez-Chillon1,2, Jad Othman2,3,4, David Taussig5
1Servicio de Hematología y Hemoterapia, Hospital Universitario Ramón y Cajal, Madrid, Spain.
Blood advances
|December 1, 2023
概括
威尼托克拉克斯组合有效治疗NPM1突变AML中的分子复发,实现高响应率和MRD负面性. 这种疗法可以作为移植或最终治疗的桥梁,提供更好的生存结果.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 在NPM1-突变的急性髓性白血病 (AML) 中,分子衰竭导致无需治疗的不可避免的复发.
- 新出现的数据表明,venetoclax的组合可能会减少或消除可测量的残留疾病 (MRD).
研究的目的:
- 评估venetoclax组合在NPM1-突变AML分子衰竭患者中的疗效和安全性.
- 评估结果,包括MRD反应,整体存活率 (OS) 和无事件存活率 (EFS).
主要方法:
- 国际多中心队列研究79名患有NPM1-突变AML的患者经历分子衰竭.
- 治疗涉及venetoclax结合低剂量的cytarabine或azacitidine.
- 评估的结果包括MRD反应 (≥1-日志减少和消极性),住院率,生存终点和FLT3-ITD突变的影响.
主要成果:
- 在84% (66/79) 的患者中实现了整体分子反应,而在71% (56/79) 的患者中实现了MRD阴性反应.
- 41名患者被桥接到异构移植,其中25名在移植前达到MRD阴性.
- 两年的OS为67%,EFS为45%.两年的OS为67%,EFS为45%. FLT3-ITD突变与更低的应答率和更差的存活率有关.
- 18名患者在达到MRD阴性后停止治疗,其2年无复发分子存活率为62%.
结论:
- 基于Venetoclax的低强度化疗是一种高度有效的治疗方法,用于NPM1-突变AML分子复发.
- 这种疗法可以作为一座桥梁,通向异种移植或作为最终治疗.
- 由于它们对结果的负面影响,FLT3-ITD突变的存在值得考虑.
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