Blood:奥比妥珠单抗+依鲁替尼+维奈托克一线治疗高风险的慢性淋巴细胞白血病

2022-03-14 Nebula MedSci原创

奥比妥珠单抗+依鲁替尼+维奈托克联合方案有望成为高风险的慢性淋巴细胞白血病的一线治疗选择

尽管针对高风险(del[17p]和/或TP53突变)的慢性淋巴细胞白血病 (CLL) 患者的靶向治疗取得了相当大的治疗进展,但是与其他CLL患者相比,高风险的CLL患者的预后仍相对较差。联合多种不同作用机制的药物或可进一步提高这类CLL患者的临床预后。

奥比妥珠单抗(Obinutuzumab,GA-101)是一种单克隆抗体,靶向前体B细胞和成熟B淋巴细胞表面的CD20抗原。奥比妥珠单抗结合CD20后通过免疫效应细胞参与和直接激活细胞内死亡信号通路或激活补体级联反应,来介导B细胞溶解。

CLL-GIVe研究是一项开放标签的多中心临床试验,招募了既往未治疗过的携带del(17p)和/或TP53突变的CLL患者。予以奥比妥珠单抗、依鲁替尼和维奈托克(GIVe)方案诱导治疗6个疗程,然后再予以维奈托克和依鲁替尼巩固治疗6个疗程。最后,在巩固治疗后未达到完全缓解(CR)且连续几次检测不到微小残留病灶(uMRD)的患者再接受依鲁替尼单药治疗24个疗程。主要终点是第15个疗程时的完全缓解率。次要终点包括微小残留病灶、存活率和安全性。

第15个疗程后的缓解率

2016年9月至2018年8月期间,共招募了41位患者接受了研究治疗,这41位患者均被纳入了疗效和安全性分析人群。第15个疗程后,完全缓解率为58.5%,主要终点达到预期。第15个疗程后,78.0%的患者在外周血中检测不到微小残留病灶,65.9%的患者在骨髓中检测不到微小残留病灶。

无进展生存率(PFS)和总生存率(OS)

24个月时的估计无进展生存率(PFS)和总生存率(OS)都是95.1%。所有患者都经历了不良反应事件。最常见的是低级别的,3级及以上的不良反应的发生率为23.9%。报道了两例死亡(分别死于心衰卵巢癌),均与研究治疗无关。

总之,该研究结果表明,CLL2-GIVe治疗方案作为高风险的CLL患者的一线治疗具有较好的疗效,而且安全性可控

原始出处:

Henriette Huber, et al. Obinutuzumab (GA-101), ibrutinib, and venetoclax (GIVe) frontline treatment for high-risk chronic lymphocytic leukemia. Blood (2022) 139 (9): 1318–1329.

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    2022-03-24 ms9000001205634136

    学习了。

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