以生理学为基础的药理动力学建模为基础的评估当前的Carbamazepine和瓦尔酸剂量指南为治疗儿科的治疗指南
Joyce E M van der Heijden1, Violette Gijsen1, Anne M van Uden1
1Division of Pharmacology and Toxicology, Department of Pharmacy, Pharmacology Toxicology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands.
Paediatric drugs
|July 2, 2025
概括
基于生理学的药理动力学 (PBPK) 建模优化了卡巴马泽和酸 (VPA) 的儿科剂量. 模拟支持目前的建议,但建议对新生儿和青少年进行剂量调整,并监测低albuminemic 患者的未结合VPA.
科学领域:
- 药理学 药理学是指药理学的学科.
- 儿科医学 儿科医学
- 计算生物学 计算生物学
背景情况:
- 卡巴马泽和酸 (VPA) 是儿童必需的抗药物.
- 由于酶成熟,儿童药物处置是复杂的,需要个性化剂量策略.
- 基于生理学的药理动力学 (PBPK) 建模提供了一种机械方法来优化儿科药物剂量.
研究的目的:
- 改进卡巴马泽和酸 (VPA) 的儿科剂量建议.
- 为了利用PBPK建模,提高儿科治疗的准确性.
- 评估当前的剂量策略,并提出优化方案.
主要方法:
- 使用Simcyp软件进行PBPK模拟,使用已建立的卡巴马西和VPA模型.
- 与已公布的成人和儿科药理动力学数据对模型性能进行验证.
- 模拟现有的荷兰剂量策略,并提出优化替代方案.
- 探索VPA剂量调整,考虑到儿童群体中不同类型的白蛋白水平.
主要成果:
- 目前的剂量策略在1-2周内达到卡巴马西平和VPA的治疗水平.
- PBPK模型建议增加新生儿 (10毫克/公斤/天) 和青少年 (400毫克/天) 的卡巴马西平初始剂量.
- 降低的白蛋白水平影响了VPA总度,但并没有影响治疗范围内的未结合水平.
结论:
- PBPK建模验证了卡巴马西和VPA的当前儿科剂量.
- 对于低albuminemic患者或需要高VPA剂量 (≥30 mg/kg/day) 的患者,建议对未结合的VPA进行监测.
- PBPK建模是确认,优化和告知儿科药物剂量指南和标签的强大工具.
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