在神经临床护理人群中优化Levétiracetam剂量:神经ARC研究
Maged Kharouba1, Aaron M Cook2, Melissa L Thompson Bastin2
1Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada.
Neurocritical care
|September 4, 2025
概括
在神经临界治疗患者中,增加的清除 (ARC) 显著增加了 levetiracetam 清除. 标准剂量是不够的;ARC患者需要更高的剂量来维持治疗药物水平.
科学领域:
- 药理动力学和药物代谢
- 科和重症监护医学
- 神经临床护理疗法
背景情况:
- 利维是一种主要的抗发作药物,主要通过排泄.
- 功能极大地影响了 levetiracetam 的药理动力学.
- 在重症监护中常见的干净度 (ARC) 可以改变药物处理.
研究的目的:
- 在神经临界治疗患者中描述 levetiracetam 的药理动力学.
- 确定影响 levetiracetam 清除的因素,包括 ARC.
- 在有或没有ARC的患者中制定最佳的 levetiracetam 剂量策略.
主要方法:
- 对神经临界护理患者进行前性观察性多中心研究.
- 血中 levetiracetam 的含量通过 HPLC 测量.
- 通过采集8小时尿液来测量肌素清除率 (mCLCR).
- 用于分析的群体药动力学建模和蒙特卡洛模拟.
主要成果:
- 在50名患者中,有35名患者 (70%) 呈现ARC.
- 与没有ARC (11. 8 mg/ L) 相比,在ARC患者中观察到较低的 levetiracetam 度.
- 测量的CLCR显著影响了 levetiracetam 清除;初始500mg两次一天的剂量被发现不足.
- 模拟建议每天两次服用1500毫克的mCLCR≥90毫升/分钟/1.73米2,以及每天两次服用1250毫克的mCLCR60-89毫升/分钟/1.73米.
结论:
- 在神经临床护理环境中,ARC显著提高了 levetiracetam 清除率.
- 标准的 levetiracetam 剂量 (每天两次 500 毫克) 对 ARC 患者来说是不够的.
- 对于ARC患者来说,建议使用较高的初始剂量 (例如每天两次1500毫克),以达到治疗度.
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