由于患者死亡,CAR-T细胞疗法ATA2271的临床试验被暂停

2022-02-21 Allan MedSci原创

生物制药公司 Atara Biotherapeutics 本周五表示,其自体间皮素靶向 CAR-T 细胞疗法 ATA2271 的 I 期试验已被暂停。

生物制药公司 Atara Biotherapeutics 本周五表示,其自体间皮素靶向 CAR-T 细胞疗法 ATA2271 的 I 期试验已被暂停,原由是在该研究中接受治疗的参与者发生致命严重不良事件 (SAE)。该实验性疗法目前正在恶性胸膜间皮瘤患者中进行临床研究。ATA3271 是一种针对间皮素的 CAR-T 细胞疗法,使用下一代 PD1DNR 和 1XX CAR 技术治疗晚期间皮瘤患者。

MSK I期临床研究招募了 27 名患者,其中 25 名患有恶性胸膜间皮瘤 (MPM),1名患有转移性肺癌,1名患有转移性乳腺癌,他们之前接受过 3 种治疗方案,该研究的目的是评估靶向间皮素自体 CAR-T 细胞疗法的安全性和潜在的抗肿瘤活性。该研究在 2019 年 3 月报告的 6 剂量队列中增加了两个更高剂量的队列,直接给药至肿瘤部位。27 名患者中有 22 名随后接受了 PD-1 检查点抑制剂 pembrolizumab 的治疗。

胸膜间皮瘤 (MPM) 是一种来源于胸膜间皮细胞的原发肿瘤,占胸膜肿瘤的5%。胸膜间皮瘤可发生于脏层胸膜和壁层胸膜的任何部分,80%发生于脏层胸膜,20%发生于壁层胸膜。

据 Atara 称,该死亡病例具有多种恶性肿瘤和其他合并症病史,该患者正在接受晚期复发性间皮瘤的治疗。该公司表示,参加试验的两个最低剂量队列的前六名参与者接受了 1x106 个细胞/kg 或 3x106 个细胞/kg 的胸膜内 ATA2271 给药,并且没有剂量限制性毒性。据 Atara 称,死亡的患者是接受 6x106 个细胞/kg 的高剂量队列的第一个患者。

 

原始出处:

https://firstwordpharma.com/story/4801745

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    2022-03-08 仁者大医
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    2022-02-23 bbjsj_1981
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