在B细胞恶性瘤中,CD27激进抗体通过内刺激调解临床反应:多中心RiVa试验
Lara E Buermann1,2, Louise Stanton3,4, Matthew J J Rose-Zerilli1
1Cancer Sciences Unit, University of Southampton, Southampton, United Kingdom.
概括
利图西马布和瓦利卢马布的组合在B细胞非霍奇金淋巴瘤中表现出适度的活性. 瘤中的免疫原始化和特定细胞特征可以预测对CD27激进抗体的反应.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 瓦利卢马布是一种CD27激进抗体,可提供T细胞共刺激.
- 临床前数据表明,CD27激动剂可以通过激活T细胞来增强CD20抗体的抗瘤活性,例如B细胞淋巴瘤中的Rituximab.
研究的目的:
- 评估先前接受过治疗的B细胞非霍奇金淋巴瘤患者联合利图西马布和瓦利卢马布的安全性和疗效.
主要方法:
- 一个多中心IIa期试验随机选择了患有复发/耐药CD20+B细胞非霍奇金淋巴瘤的患者.
- 患者在一个定义的时间表上接受了利图西马布和瓦利卢马布.
- 瘤活检分析了免疫细胞透和基因表达特征.
主要成果:
- 组合疗法显示了适度的整体反应 (15.4%) 和疾病控制率 (38.8%).
- 将瓦利卢马布添加到瑞图西马布中,增加了CD4+T细胞透和T细胞和先天细胞特征.
- 治疗前的炎症瘤特征和特定的免疫细胞特征 (CD27+ T/NK细胞,γδ T细胞) 与反应相关.
结论:
- 利图西马布和瓦利卢马布在这个患者群体中表现出适度的临床活性.
- 当瘤有足够的点和现有的免疫原始化时,CD27主动抗体可能是有效的.
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