在复发性/耐火性多发性骨髓瘤中,贝兰他马布马福多丁与波马利多米德和甲:DREAMM-8研究的综合暴露-反应分析
Patrick Hanafin1, Yu Liu Ho1, Theodoros Papathanasiou2
1GSK, 1250 S Collegeville Rd, Collegeville, PA, 19426, USA.
Targeted oncology
|September 16, 2025
概括
在循环1中更高的贝兰他马布玛福多丁暴露与复发/耐药多发性髓瘤患者的更深层次的反应相关. 然而,2.5 mg/kg的初始剂量与1.9 mg/kg相比没有增加眼部不良事件.
科学领域:
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
- 临床试验 临床试验
背景情况:
- 贝兰他马布 (Belantamab mafodotin) (一种抗BCMA抗体-药物结合物) 与波马利多米德和甲松 (BPd) 结合,在复发性/耐药性多发性骨髓瘤 (RRMM) 中显示出显著的无进展生存益处.
- 在DREAMM-8第三期研究 (NCT04484623) 中,评估了这种联合治疗的疗效和安全性.
研究的目的:
- 对贝兰他马布 (Belantamab) 马福多丁 (Mafodotin) 的第1周期暴露进行暴露-反应分析,以与疗效和安全性结果相关.
- 预测使用DREAMM-8研究中的初始剂量为1.9 mg/kg与2.5 mg/kg的贝兰他马布 (belantamab mafodotin) 的益处风险概况.
主要方法:
- 利用了DREAMM-8研究的BPd分支的数据.
- 从人口的药理动力学分析中分析了贝兰他马布马福多丁循环1的暴露和自由有效载荷的暴露.
- 进行了暴露-有效性和暴露-安全性分析,包括第一次事件的概率/时间和共变效应.
主要成果:
- 增加贝兰他马布马福多丁循环1暴露与更深层次的患者反应有关,包括更高的完全反应或更好的 (≥CR) 概率和最小的残留疾病负面影响.
- 较高的贝兰他马布马福多丁暴露与3级以上的眼部不良事件 (oAEs) 或眼科检查结果之间没有发现关联.
- 益处风险评估表明,初始剂量为1.9 mg/kg将降低达到≥CR的概率,而不会影响oAEs或眼科检查结果,而初始剂量为2.5 mg/kg.
结论:
- 在BPd疗法中,初始的贝兰他马布马福多丁剂量为2.5mg/kg,与1.9mg/kg相比,导致更深层次的反应.
- 安全性结果,特别是眼部不良事件,在RRMM患者的初始2.5 mg/kg和1.9 mg/kg剂量之间显示出极小的变化.
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