和铂医药宣布启动用于治疗实体瘤的下一代抗CTLA-4抗体的首次临床研究

2019-11-05 不详 MedSci原创

和铂医药Harbor BioMed(HBM)今天宣布开始其下一代全人源抗CTLA-4抗体(HBM4003)在晚期实体瘤患者中的首次临床试验,该试验是首次使用基于仅重链抗体技术(HCAb)的全人源抗体试验。基于增强的抗体依赖性细胞毒性(ADCC)介导的Treg消耗,HBM4003已显示出增强抗肿瘤活性的潜力,并且由于半衰期缩短,其安全性良好。

和铂医药Harbor BioMed(HBM)今天宣布开始其下一代全人源抗CTLA-4抗体(HBM4003)在晚期实体瘤患者中的首次临床试验,该试验是首次使用基于纯重链抗体技术(HCAb)的全人源抗体试验。基于增强的抗体依赖性细胞毒性(ADCC)介导的Treg消耗,HBM4003已显示出增强抗肿瘤活性的潜力,并且由于半衰期缩短,其安全性良好。

临床前研究中,HBM4003表现出强大的抗肿瘤活性,且全身药物的暴露量低得多,表明其治疗作用可能有显着改善。HBM在2019年4月的美国癌症研究协会(AACR)年会上介绍了HBM4003的临床前研究结果。该试验旨在评估HBM4003在晚期实体瘤患者中的安全性,药代动力学特征和初步的抗肿瘤活性。

Harbor BioMed创始人,董事长兼首席执行官王劲松博士说:"基于我们专有的人类HCAb平台开发的HBM4003强调了纯重链抗体在开发下一代患者免疫肿瘤治疗剂方面的潜力。这项研究在澳大利亚正在进行,是全球性发展计划的第一部分,与美国和中国的临床试验,包括联合研究预计在不久的将来开始。"

CTLA-4是T细胞反应的主要负调控因子之一。抗CTLA-4抗体是一种免疫检查点抑制剂,通过增加T细胞攻击肿瘤细胞的活性,在癌症免疫治疗中具有公认的价值。尽管显示出疗效,但它们的安全性已成为单一疗法和联合疗法广泛应用的障碍。临床前研究表明,HBM4003的免疫刺激活性是由两种机制驱动的:通过增强ADCC抑制免疫抑制的Treg;和 抑制CTLA-4与共刺激分子B7相互作用产生的负信号。

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    2020-09-23 爆笑小医
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    2019-11-07 cathymary
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    2019-11-07 hywen7328
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