身体质量指数影响伊马替尼布暴露:来自TDM与自适应剂量的现实世界的证据
Paul Maroselli1, Raphaelle Fanciullino2,3, Julien Colle4
1PRISM Biogénopôle La Timone University Hospital of Marseille, APHM, Marseille, France.
Fundamental & clinical pharmacology
|January 3, 2025
概括
低体重指数 (BMI) 显著影响慢性髓性白血病 (CML) 患者的伊马替尼暴露. 然而,通过治疗药物监测 (TDM) 引导的自适应剂量有效地管理这种变异性,确保一致的临床结果.
科学领域:
- 药理学 药理学是指药理学的学科.
- 在瘤学瘤学.
- 临床药房 临床药房
背景情况:
- 伊马替尼是慢性髓性白血病 (CML) 的关键治疗方法,特别是在老年或虚弱的个体中.
- 目标低谷意马提尼布水平通常被认为在1000 ng/ml左右,以获得最佳的疗效.
研究的目的:
- 为了确定与伊马替尼的药理动力学相关的基线患者特征.
- 评估基于治疗药物监测 (TDM) 的适应剂量策略的临床有效性.
主要方法:
- 分析了接受伊马替尼布治疗的60名成年CML患者的数据.
- 用治疗药物监测 (TDM) 和适应剂量来个性化治疗.
- 使用单变量和多变量分析来确定影响意马替尼血水平的因素.
主要成果:
- 伊马替尼的初始平均最低水平为994.2 ± 560.6 ng/ml,患者间差异很大 (56%);只有29%的人达到治疗范围.
- 年龄和体重指数 (BMI) 与伊马替尼的最低水平有显著的相关性.
- 低BMI (<18.5 kg/m2) 的患者表现出显著更高的伊马替尼布暴露 (61.5-76.3%更高).
- 适应剂量导致伊马替尼布剂量范围广泛 (200-700毫克),但在BMI组中使毒性和疗效正常化.
结论:
- 在CML患者中,低BMI是伊马替尼暴露的重要决定因素.
- 药理学导向的自适应剂量有效地减轻了与BMI相关的伊马替尼布过度暴露的临床影响.
- 个性化剂量策略对于优化imatinib治疗在不同患者群体中至关重要.
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