CLIN CANCER RES:M7824治疗晚期实体肿瘤

2018-03-21 MedSci MedSci原创

人们对PD-1/PD-L1靶向治疗的热情正逐渐降温,部分原因便是该疗法仅在一部分患者中证明有效。为了增加反应率,许多进行中的临床试验均在评估抗PD-1/PD-L1药物与其他免疫治疗方式结合的效果。但是这些结合方式均存在限制。M7824是一种双功能融合蛋白,由抗PD-L1单抗与TGFβ“trap”融合而成。CLIN CANCER RES近期发表了一篇文章,报道M7824治疗晚期实体肿瘤的效果。

人们对PD-1/PD-L1靶向治疗的热情正逐渐降温,部分原因便是该疗法仅在一部分患者中证明有效。为了增加反应率,许多进行中的临床试验均在评估抗PD-1/PD-L1药物与其他免疫治疗方式结合的效果。但是这些结合方式均存在限制。M7824是一种双功能融合蛋白,由抗PD-L1单抗与TGFβ“trap”融合而成。CLIN CANCER RES近期发表了一篇文章,报道M7824治疗晚期实体肿瘤的效果。

晚期实体肿瘤患者每2周接受M7824治疗,剂量分别为1,3,10,或20mg/kg,直至出现进展、不可耐受毒性或退出研究。还有一个队列接受初始0.3mg/kg剂量以评估药动学/药效学效果,后续剂量10mg/kg。主要的研究目的是确定安全性和最大耐受剂量,次要的研究目的包括药代动力学,免疫原性和总反应。最终纳入19例接受过治疗的晚期实体瘤患者。4例患者出现≥3级的治疗相关不良反应。未达到最大耐受剂量。所有剂量水平均存在治疗有效的标志,包括1例完全缓解,2例持续部分缓解,1例接近部分缓解,2例出现病情稳定延长。

文章最后认为,M7824在接受过治疗的晚期实体瘤患者中安全性可控。治疗有效的早期征象是存在的,目前正在进行对不同肿瘤的多个拓展队列试验。

原始出处:
Julius Strauss,Christopher R.Heery,et al.Phase ⅠTrial of M7824(MSB0011359C),a Bifucntional Fusion Protein Targeting PD-L1 and TGFβ,in Advanced Soli Tumor.CLIN CANCER RES.March 2018 doi:10.1158/1078-0432.CCR-17-2653

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