作为单疗法或与托利帕利马布联合治疗复发/耐药淋巴瘤患者的Tifcemalimab:一期I期试验
Yuqin Song1, Jun Ma2, Huilai Zhang3
1Peking University Cancer Hospital & Institute, Beijing, China.
Nature communications
|May 16, 2025
概括
抗BTLA抗体Tifcemalimab与托里帕利马布 (抗PD-1) 结合在淋巴瘤治疗中显示出有前途. 这一第一阶段研究发现,这些免疫疗法在复发性或耐药淋巴瘤患者中具有有利的安全性.
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:
- 临床前研究表明,tifcemalimab (抗BTLA抗体) 和toripalimab (抗PD-1抗体) 的协同抗瘤作用.
- 复发性或耐药性淋巴瘤的治疗选择有限,需要新的治疗策略.
- 了解新型免疫疗法组合的安全性和疗效对于推进淋巴瘤治疗至关重要.
研究的目的:
- 为了评估Tifcemalimab单独治疗的安全性,最大耐受剂量 (MTD) 和推的第二阶段剂量 (RP2D) 以及在淋巴瘤患者中与toripalimab结合使用的Tifcemalimab.
- 评估tifcemalimab与或没有toripalimab在患有复发性或耐火性淋巴瘤的患者的初步疗效,特别是经典霍奇金淋巴瘤 (cHL).
主要方法:
- 一个由两部分组成的I期临床试验 (NCT04477772),涉及剂量升级 (A部分) 和指示扩展 (B部分).
- 部分A:复发性/耐药性淋巴瘤患者接受了升级剂量的tifcemalimab单疗法.
- 部分B:古典霍奇金淋巴瘤 (cHL) 患者接受了tifcemalimab与toripalimab结合使用.
主要成果:
- 没有观察到剂量限制性毒性;MTD没有达到. 确定tifcemalimab的RP2D为200毫克.
- 不良事件主要是1/2级. 与3/4级治疗相关的不良事件发生在A部分的12.0%,B部分的32.6%.
- 没有报告致命的不良事件,这表明组合治疗的安全性概况有利.
结论:
- 单独使用或与toripalimab结合使用的Tifcemalimab在复发性或耐火性淋巴瘤患者中显示出良好的安全性.
- 推的第2期剂量 (RP2D) 的tifcemalimab被确定为200毫克.
- 需要进一步研究这种免疫疗法组合在特定淋巴瘤亚型 (如cHL) 的疗效.
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