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Updated: Jun 6, 2025

Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs
Published on: July 23, 2016
艾米卡辛在急诊室的剂量优化:一个人口药理动力学模拟研究
Nada Dia1, Sabrina De Winter2, Matthias Gijsen1,2
1Department of Pharmaceutical and Pharmacological Sciences, KU Leuven.
标准的阿米卡辛剂量对于败血症患者来说是不够的. 一个1500毫克的平面剂量可确保在较低的MIC中有效,但对于临床断点需要更高的剂量,因此需要仔细考虑最佳患者结果.
科学领域:
- 药理动力学和药理动力学
- 传染性疾病 传染性疾病
- 关键护理医学 关键护理医学
背景情况:
- 在成人败血症患者中,标准的15mg/kg静脉注射阿米卡辛剂量不足以达到治疗目标.
- 这种不足在2 mg/L的局部最小抑制度 (MIC) 和欧洲抗菌感应性测试委员会 (EUCAST) 肠道细菌的8 mg/L的断点下观察到.
研究的目的:
- 确定阿米卡辛的剂量策略,为所有成人败血症患者提供可接受的目标实现概率 (PTA).
- 为了优化阿米卡辛的剂量,以改善败血症和败血性休克的临床结果.
主要方法:
- 使用两部分人群药理动力学模型 (NONMEM 7.5) 的随机模拟.
- 评估了各种剂量方案的PTA,考虑了患者的因素,如体重,BMI和估计的膜过率 (eGFRCKD-EPI).
- 评估的药理动力学-药理动力学目标:24小时度-时间曲线下的面积 (AUC24h) /MIC ≥80对于疗效和24小时后剂量度 (C24h) <3 mg/L对安全.
主要成果:
- 标准15mg/kg剂量在所有患者特征的8mg/L断点达到<90%PTA.
- 一个平坦的1500毫克剂量达到≥90%的PTA在2毫克/升MIC的整个人口.
- 要在8mg/L的临界点达到≥90%的PTA,需要一个平坦的3500mg剂量,但仅用于EGFRCKD-EPI<96mL/min/1.73m2的患者;这个剂量也增加了C24h.
结论:
- 对于败血症患者来说,平剂量阿米卡辛治疗方案比基于体重的剂量更好.
- 在选择1500毫克 (确保在较低的MIC中有效) 和3500毫克 (在较高的MIC中潜在地危及安全) 之间存在困境.
- 进一步临床验证建议的剂量策略是必不可少的.
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