个性化时调节的5-甲治疗:一种基于生理学的药理动力学精确剂量方法,用于优化癌症治疗
Fatima Zahra Marok1, Jan-Georg Wojtyniak1,2, Dominik Selzer1
1Clinical Pharmacy, Saarland University, Saarbruecken, Germany.
这项研究模拟了5-fluorouracil (5-FU) 代谢,以个性化癌症治疗. 它估计了个体的二皮里米丁脱酶 (DPD) 时型,以优化时调制的5-FU剂量,以获得更好的患者结果.
科学领域:
- 药理动力学和药理动力学
- 时间生物学在癌症治疗中的作用
- 系统药理学系统药理学
背景情况:
- 循环时钟基因会影响癌症治疗中的日间变化,特别是5 - 甲 (5-FU) 治疗.
- 在白天的二皮里米丁脱酶 (DPD) 活性中存在很高的个体间变异性 (IIV),这是5-FU代谢中的关键酶.
- 个别DPD时代型对5FU时代调制疗法的疗效的影响需要进一步研究.
研究的目的:
- 开发5-FU,乌拉及其代谢物的生理学基础的药理动力学 (PBPK) 模型.
- 评估DPD活动的日间变化,并估计个别的DPD时型.
- 根据个别的DPD时型来个性化时调制的5-FU输液速率,以优化精确剂量.
主要方法:
- 用PK-Sim®和MoBi®构建了5-FU,乌拉和代谢物的全身PBPK模型.
- 鼻状功能包含了酶活性变化和时间调节的输液速率.
- 根据DPYD mRNA表达或DPD酶活性数据估计了个别的DPD年代型.
主要成果:
- 四个PBPK模型是使用41个5-FU和10个 uracil 研究的数据建立的.
- 评估了 DPD 年代型的个体间变异性.
- 开发了个性化的时间调节剂,以达到可比的5-FU峰值度,暴露和恒定的血水平.
结论:
- 开发的PBPK模型准确地捕捉了DPD活动的日间变化.
- 这些模型可以促进对个性化的5FU治疗的研究.
- 基于DPD年代型的个性化剂量策略有望优化5-FU癌症治疗.
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