Blood:Venetoclax联合奥比妥单抗治疗慢性淋巴细胞白血病的疗效和安全性

2019-03-20 不详 MedSci原创

中心点。Venetoclax(400mg)联合奥比妥单抗(obinutuzumab)可安全用于治疗R/R和1L CLL。无论细胞遗传学风险如何,Venetoclax-奥比妥单抗均可诱导较高的缓解率,而且R/R和1L CLL患者均可获得较好的缓解。摘要:Ian W. Flinn等人开展一单臂的、开放性的1b期研究,评估venetoclax与奥比妥单抗联合应用时的最大耐受剂量(MTD),以及其应用于复

中心点。

Venetoclax(400mg)联合奥比妥单抗(obinutuzumab)可安全用于治疗R/R和1L CLL。

无论细胞遗传学风险如何,Venetoclax-奥比妥单抗均可诱导较高的缓解率,而且R/R和1L CLL患者均可获得较好的缓解。

摘要:

Ian W. Flinn等人开展一单臂的、开放性的1b期研究,评估venetoclax与奥比妥单抗联合应用时的最大耐受剂量(MTD),以及其应用于复发性/难治性(R/R)或既往未治疗过的(1L)慢性淋巴细胞白血病患者时的安全性和耐受性。研究人员采用3+3的设计方案,venetoclax的剂量从100mg递增至400mg。首先患者venetoclax(A方案)或奥比妥单抗(B方案)来比较两种方案的安全性,同时明确用于进一步研究的剂量和方案。采用venetoclax-奥比妥单抗治疗6个疗程,随后予以venetoclax单药维持治疗,直到病程进展或固定治疗满1年(1L)。

共招募了50位R/R患者和32位1L患者,研究治疗期间未出现剂量限制性副反应。两种治疗方案的安全性无差异。B方案和venetoclax 400mg被用于进一步研究。

最常见的3-4级副反应有中性粒细胞减少(R/R组 58%,1L组 53%)。R/R组和1L组患者3-4级感染的发生率分别是29%和13%,1L组中无致命性感染发生。所有输液反应均为1-2级。无临床肿瘤溶解反应发生。R/R组和1L组患者的总体最高缓解率分别高达95%(CR/CRi, 37%)和100%(CR/CRi, 78)。最后一次奥比妥单抗用药后3个月之后,R/R组和1L组外周血中最小残留病灶(MRD)的阴性率(<10-4)分别为64%和91%。

综上所述,venetoclax联合奥比妥单抗治疗复发性/难治性或既往未治疗过的慢性淋巴细胞白血病患者,安全性良好,可获得持久的缓解,以及较高的MRD阴性率。

原始出处:

Ian W. Flinn, et al.Phase 1b study of venetoclax-obinutuzumab in previously untreated and relapsed/refractory chronic lymphocytic leukemia.Blood 2019 :blood-2019-01-896290; doi: https://doi.org/10.1182/blood-2019-01-896290 

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    2020-01-20 canlab
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    2019-03-21 内科新手

    谢谢梅斯提供这么好的信息,学到很多

    0

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