在患有复发性/逆转性多发性骨髓瘤的患者中,Belantamab Mafodotin单疗法和组合疗法的群体药理学
Theodoros Papathanasiou1, Josh Kaullen2, Kishore Polireddy2
1Clinical Pharmacology, Modeling and Simulation, GSK, Baar, Switzerland. theo.x.papathanasiou@gsk.com.
Clinical pharmacokinetics
|May 30, 2025
概括
在复发性/耐药性多发性骨髓瘤中,Belantamab mafodotin (抗体-药物合物) 和其活性代谢物 (cys-mcMMAF) 的药理学特征很好. 疾病负担会影响暴露,但/肝功能障碍和先前的治疗不会显著改变药理动力学.
科学领域:
- 药理学 药理学是指药理学的学科.
- 在瘤学瘤学.
- 药物开发 药物开发
背景情况:
- 贝兰他马布 (Belantamab mafodotin) 是一种针对多发性骨髓瘤的BCMA的抗体药物联合体 (ADC).
- 之前的群体药动力学 (PopPK) 模型存在于单一治疗中使用.
- 这项研究旨在完善PopPK模型的ADC及其活性代谢物,cys-mcMMAF,在复发性/耐药性多发性骨髓瘤 (RRMM).
研究的目的:
- 描述贝兰他马布玛福多丁ADC及其活性代谢物cys-mcMMAF.的种群药理学 (PopPK).
- 调查共变量,包括组合疗法,对贝兰他马布 (Belantamab mafodotin) 药理动学的影响.
- 使用外部数据验证PopPK模型.
主要方法:
- 使用非线性混合效应建模来开发PopPK模型.
- 分析了来自多个贝兰他马布 (Belantamab) 马福多丁单疗法和组合治疗临床试验的数据.
- 模型使用DREAMM-8研究数据进行了外部验证.
主要成果:
- 影响ADC药理动学的共同变量包括可溶性BCMA,白蛋白,IgG,体重,BMI,种族和组合疗法.
- 影响cys-mcMMAF药理动学的共变体包括基线sBCMA,IgG,白蛋白,体重,BMI和种族.
- 模拟暴露受疾病负担的影响最大;然而,/肝功能障碍,年龄,种族和先前的治疗没有显著影响药理动力学.
结论:
- 更新的PopPK模型准确地描述了RRMM患者中的贝兰他马布马福多丁ADC和cys-mcMMAF药理学.
- 药理动力学不会受到或肝功能障碍,年龄,种族或先前治疗的显著影响.
- 与单一治疗相比,组合疗法不会导致周期1暴露的有意义差异.
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