在新诊断的FLT3-ITDAML中,索拉芬尼布加重化疗:ALLG的一项随机,安慰剂控制的研究
Sun Loo1,2,3, Andrew W Roberts1,2,3, Natasha S Anstee2,3
1Department of Haematology, Peter MacCallum Cancer Centre and Royal Melbourne Hospital, Melbourne, VIC, Australia.
Blood
|August 30, 2023
概括
这项研究发现,在密集化疗中添加索拉费尼布,对于患有FMS类型铁酸酶3-内部协奏重复 (FLT3-ITD) 急性髓性白血病 (AML) 的患者,没有改善无事件生存率. 探索性分析表明,在可测量的残留疾病阴性患者中,潜在的益处.
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:
- 类似FMS的氨酸激酶3-内部协同重复 (FLT3-ITD) 突变在急性髓性白血病 (AML) 中很常见.
- 在为FLT3-ITDAML进行血造细胞移植 (HCT) 后,索拉费尼布的维护已经显示出有前途.
- 关于索拉费尼布与密集化疗相结合的随机数据有限.
研究的目的:
- 评估新诊断的FLT3-ITDAML患者中索拉费尼布加密化疗的疗效.
- 评估索拉费尼布对无事件生存期 (EFS) 和整体生存期 (OS) 的影响.
主要方法:
- 一项安慰剂控制的第二阶段研究随机分配了102名患者接受索拉费尼布或安慰剂与强化诱导化疗相结合.
- 患者接受了idarubicin和cytarabine,随后进行了巩固和12个月的维持治疗 (不包括后HCT).
- 修改后的治疗意图分析包括98名患者.
主要成果:
- 完全缓解 (CR) /CR与不完全的血液恢复率在两个手臂都很高 (sorafenib 78%/9%;安慰剂 70%/24%).
- 索拉非尼没有显著改善2年的EFS (47.9%对45.4%;HR,0.87;P = .61) 或2年的OS (67%对58%;HR,0.76;P = .39).
- 在探索性分析中,诱导后FLT3-ITD可测量的残留疾病 (MRD) 负面状态与改善的2年生存率 (83%对60%;HR,0.4;P = .028) 相联系.
结论:
- 在未被选择的FLT3-ITDAML患者中,常规移植前使用索拉芬尼加化疗并未得到本研究的支持.
- 该研究没有达到其主要终点,即使用索拉芬尼布改善EFS.
- 需要对FLT3-ITD AML的MRD导向治疗进行进一步的研究.
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