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NAT MED:我国公布CRISPR人体试验结果

2020-05-02 MedSci原创 MedSci原创

在此,我国研究人员报告了CRISPR-Cas9 PD-1编辑的T细胞在晚期非小细胞肺癌患者中的首例人体I期临床试验的结果(ClinicalTrials.gov NCT02793856)。

已有的研究显示,CRISPR-Cas9编辑免疫检查点基因可以提高T细胞治疗的疗效,但我们首先需要了解的是其安全性和可行性。

在此,我国研究人员报告了CRISPR-Cas9 PD-1编辑的T细胞在晚期非小细胞肺癌患者中的首例人体I期临床试验的结果(ClinicalTrials.gov NCT02793856)。

该实验的主要终点为安全性和可行性,次要终点为疗效。探索性目标包括跟踪编辑后的T细胞。

结果显示,所有预设的终点都得到了满足。PD-1编辑的T细胞通过Cas9和单链导向RNA质粒的的共转染在体外被制造出来。

共有22名患者入组;17名患者有足够的编辑T细胞输注,12名患者能够接受治疗。所有治疗相关的不良事件均为1/2级。输液后外周血中可检测到编辑的T细胞。中位无进展生存期为7.7周(95%置信区间,6.9~8.5周),中位总生存期为42.6周(95%置信区间,10.3~74.9周)。

通过下一代测序,18个候选位点的非靶向事件的中位突变频率为0.05%(范围,0-0.25%)。

因此,研究人员得出的结论是,CRISPR-Cas9基因编辑T细胞的临床应用总体上是安全可行的。未来的试验应该使用更优越的基因编辑方法来提高疗效。

 

原始出处:

You Lu et al. Safety and feasibility of CRISPR-edited T cells in patients with refractory non-small-cell lung cancer. Nature Medicine (2020). 

 

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    2020-08-02 liye789132251
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    2020-05-04 yuandd
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    2020-05-04 智慧医人

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