Blood:NPM1/FLT3-ITD分型对AML患者预后的预测意义

2019-12-12 QQY MedSci原创

携带FLT3内部串联重复(ITD)的AML患者预后较差,特别是伴有高(≥0.5)突变/野生型等位基因比率(AR)的AML患者。2017年欧洲白血病(ELN)建议,根据ITD-AR和NPM1突变状态,定义了四种不同的FLT3-ITD基因型。

中心点:

根据2017年欧洲白血病(ELN)风险分类,携带FLT3-ITD变异的患者的总体存活率存在明显差异。

在OS的多变量Cox模型中,米哚妥林(midostaurin)对三个2017 ELN风险组的效益一致。

摘要:

携带FLT3内部串联重复(ITD)的AML患者预后较差,特别是伴有高(≥0.5)突变/野生型等位基因比率(AR)的AML患者。2017年欧洲白血病(ELN)建议,根据ITD-AR和NPM1突变状态,定义了四种不同的FLT3-ITD基因型。

本研究是一项回顾性的探索研究,在RATIFY试验(评估标准化疗中加入米哚妥林的效果)的根据2017年ELN风险组分类的患者中评估NPM1/FLT3-ITD基因型的预后及预测意义。四种NPM1/FLT3-ITD基因型具有显著不同的临床和并发遗传特征。该试验中549位FLT3-ITD AML患者中有318位可进行完整的ELN风险分类。

影响1-2个诱导周期后的反应的重要因素是ELN风险分组和白细胞(WBC)计数;是否采用米哚妥林治疗没有影响。ELN风险分组之间的总体存活率(OS)明显不同;低、中、高风险组的预计5年OS概率分别是0.63、0.43和0.33(P<0.001)。采用首次完全缓解的异基因造血细胞移植(HCT)作为时间因变量的多变量Cox OS模型显示,米哚妥林、异基因HCT、ELN低风险组和低WBC计数是显著的有利因素。在该模型中,米哚妥林对各ELN风险组具有一致的有益作用。

原始出处:

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    2020-09-24 医者仁心
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    2019-12-14 kord1986
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    2019-12-14 fengyi816
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    2019-12-14 zhaohui6736

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