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检查点抑制剂可用于干细胞移植手术后复发性血液癌症的辅助治疗

发布者:biolead 发布时间:2019-10-17 分享到:

检查点抑制剂可用于干细胞移植手术后复发性血液癌症的辅助治疗

根据Dana-Farber癌症研究所的研究者们最近的一项实验结果,免疫检查点抑制剂在治疗供体干细胞移植手术后血液癌症复发的患者取得了不错的效果。前期数据显示一种叫做nivolumab的单抗药物具有治疗上述癌症的作用,但同时也存在明显的副作用。因此,这些数据表明我们在最终接受该药物前需要更多的临床试验确认其安全性与有效性。该研究结果在最近于亚特兰大召开的第59届美国血液学会年度会议上进行了口头展示,同时作者们还报道了另外一种名为ipilimumab的单抗药物能够对三分之一的复发性血液癌症患者起到一定的治疗效果。

Nivolumab是PD-1的靶向抑制剂,而PD-1则能够阻断免疫系统杀伤癌症的活性。很多研究表明该药物具有不错的治疗效果,但同时其负面作用也不能忽视,例如GvHD(一种因移植手术产生的免疫系统紊乱症状)。该试验囊括了六名患者,他们接受了1mg/kg的药物治疗。结果显示,虽然有一名患者淋巴瘤的治疗效果显著,但其他患者则产生了严重的负面效应,两名患者因此死亡。之后,他们在另外8名患者上采取了低浓度的给药剂量(0.5mg/kg),负面效应减轻了不少。

资讯出处:Study explores use of checkpoint inhibitors after relapse from donor stem cell transplant

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