Blood:新型XPO1抑制剂对难治性非霍奇金淋巴瘤的疗效评估

2017-05-04 MedSci MedSci原创

核导出选择性抑制剂(SINE)化合物是一类新型的XPO1抑制剂。Selinexor在复发性或难治性NHL患者中的疗效是安全且有效的。

核导出选择性抑制剂(SINE)化合物是一类新型的XPO1抑制剂。Selinexor在复发性或难治性NHL患者中的疗效是安全且有效的。

复发性或难治性(R / R)非霍奇金淋巴瘤(NHL)患者预后不良,且治疗方案有限。该项研究评估了selinexor,一种高效口服性生物可利用的抑制剂(主要抑制核出口蛋白质XPO1)。

在阶段1试验中主要评估selinexor的安全性并确定推荐的2期剂量(RP2D)。该项目招募参与了各种NHL组织学检查的79例患者(包括弥漫性大B细胞淋巴瘤(DLBCL),Richter氏转位,套细胞淋巴瘤(MCL),滤泡淋巴瘤(FL)和慢性淋巴细胞性白血病(CLL))。在剂量递增阶段,患者在每个周期(3或4周)接受3-80mg / m2的selinexor,并评估其毒性,药代动力学和抗肿瘤活性。在剂量扩张阶段,给患者以35mg / m2或60mg / m2给予selinexor注射。最常见的3-4级药物相关不良事件是血小板减少症(47%),嗜中性粒细胞减少症(32%),贫血症(27%),白细胞减少症(16%),疲劳(11%)和低钠血症(10%)。肿瘤活检显示细胞信号通路(Bcl-2,Bcl-6,c-Myc),减少增殖(Ki67),XPO1载体(p53,PTEN)的核定位和治疗后细胞凋亡数目的减少。 在一系列NHL亚型下观察到,70例可评估患者中有22例(31%)患有客观反应(OR),包括4例完全缓解(CR)和18例部分反应(PR)。确定RP2D剂量为35mg / m2(60mg)。

该研究结果表明,口服使用selinexor(35 mg / m2)对R / R NHL患者是一种持久抗癌活性的突破性和安全治疗方法。

原始出处:

John Kuruvilla,et al. Selective inhibition of nuclear export with selinexor in patients with non-Hodgkin's lymphoma.Blood 2017 :blood-2016-11-750174; doi: https://doi.org/10.1182/blood-2016-11-750174

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    2017-11-16 jklm09
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