在RELATIVITY-02222中的复发或进展的B细胞恶性瘤患者中,尼沃卢马布加上relatlimab
Ajay K Gopal1, Philippe Armand2, Sattva S Neelapu3
1University of Washington, Seattle, Washington, United States.
Blood advances
|March 3, 2025
概括
双重免疫检查点抑制与抗淋巴细胞激活基因3 (LAG-3) 抗体relatlimab在PD-1-naive霍奇金淋巴瘤患者中显示出有希望的疗效,这需要进一步研究B细胞恶性瘤.
科学领域:
- 免疫治疗是一种免疫疗法.
- 在瘤学瘤学.
- 临床试验 临床试验
背景情况:
- 反编程细胞死亡蛋白1 (PD-1) 疗法在复发性/耐药性霍奇金淋巴瘤 (HL) 和其他B细胞恶性瘤中存在局限性.
- 淋巴细胞激活基因3 (LAG-3) 是癌症免疫疗法的新兴免疫检查点标.
- 双重PD-1和LAG-3抑制是高级黑色素瘤的批准策略.
研究的目的:
- 评估relatlimab的安全性和有效性,一个抗LAG-3抗体,作为单一疗法或与nivolumab (抗PD-1) 结合在患有复发/耐药B细胞恶性瘤的患者中.
- 为了确定该患者群体中relatlimab的推第二阶段剂量.
主要方法:
- 一项多中心,1/2a期,开放性研究 (RELATIVITY-022;NCT02061761) 招募了106名患有复发/耐药B细胞恶性瘤的患者.
- 患者接受了relatlimab单疗或nivolumab加relatlimab的治疗.
- 使用剂量升级和扩展队列来评估安全性和有效性,包括整体反应率 (ORR),完整反应率 (CRR) 和无进展生存期 (PFS).
主要成果:
- 没有观察到剂量限制性毒性;建立了推的第二阶段剂量.
- 在PD-1/L1-先天的HL患者中,ORR为62% (CRR为19%),PFS中位数为19个月.
- 在PD-1/L1-进展的HL患者中,ORR为15% (CRR为0%),PFS中位数为6个月.
- 在扩散性大B细胞淋巴瘤 (DLBCL) 队列中,ORR为7%,没有CRs,PFS中位数为2个月.
- 尼沃卢马布加上relatlimab显示出安全和耐受性概况,与单剂抗PD-1疗法相比.
结论:
- 尼沃卢马布和relatlimab对PD-1和LAG-3的双重抑制在复发性/耐药B细胞恶性瘤中是安全的和可以容忍的.
- 在以前没有患过PD-1-Hodgkin淋巴瘤的患者中观察到令人鼓舞的疗效,这表明这种组合治疗的潜力.
- 需要进一步评估,以确定relatlimab对该组合的整体疗效的具体贡献.
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