在患有ALK阳性晚期癌症的儿科患者中对crizotinib的种群建模分析
Li Jerry1, Lin Swan2, Nickens Dana1
1Clinical Pharmacology, Pfizer Inc., New York, New York, USA.
Pediatric blood & cancer
|June 13, 2024
概括
在患有ALK突变癌症的儿科患者中使用crizotinib的剂量得到了药理动力学和暴露-反应分析的支持. 该药物表现出可容忍的安全性,剂量与客观反应率和中性质减退有关.
科学领域:
- 药理学 药理学是指药理学的学科.
- 儿科瘤学 儿科瘤学
- 药理动力学 药理动力学
背景情况:
- 形性淋巴瘤激酶 (ALK) 基因的改变是形性大细胞淋巴瘤 (ALCL) 发病的关键.
- 克里佐替尼是一种ALK,ROS1和MET抑制剂,已被批准用于儿科ALK阳性复发性/耐火性全身ALCL和不可切割的炎症性肌纤维细胞瘤 (IMT).
研究的目的:
- 在儿科患者中描述crizotinib的药理动力学 (PK) 和暴露-反应 (ER) 关系.
- 评估crizotinib在儿童群体中的安全性和抗瘤活性.
- 为了支持现有的儿童用克里佐替尼的剂量建议.
主要方法:
- 人口PK (popPK) 分析是基于98名儿科患者的数据进行的.
- 在ER安全性和抗瘤分析中,分别包括110名和36名儿科患者.
- 用一个具有全米缩放的单间PK模型来描述crizotinib的处置.
主要成果:
- 克里佐替尼暴露 (AUCss) 显示与3级以上的中性质衰竭和任何级别的视力障碍有积极的关系.
- 克里佐尼布剂量与客观反应率有积极的关联.
- 在不同年龄或瘤类型中,PK没有显著差异,支持基于BSA的剂量.
结论:
- 基于身体表面积 (BSA) 的剂量有效地在不同年龄和瘤类型的儿科患者中实现类似的克里佐替尼暴露.
- 克里佐替尼 (crizotinib) 对儿科ALK突变癌症的传统化疗相比,具有较少的血液毒性,具有可容忍的安全性.
- 这些发现支持目前儿童用crizotinib的剂量指南.
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