在中国老年患者中,艾米佩内姆的群体药理动力学和剂量优化
Jing Wang1, Qiu Fang2, Xuemei Luo1
1Department of Pharmacy, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China.
Frontiers in pharmacology
|January 24, 2025
概括
这项研究使用人口药动力学 (PPK) 模型,对中国老年患者的伊米佩内姆药动力学进行了表征. 肌素清除被确定为影响伊米佩内姆剂量以改善治疗结果的关键因素.
科学领域:
- 药理学 药理学是指药理学的学科.
- 临床药房 临床药房
- 老年医学 老年医学
背景情况:
- 伊米是治疗严重感染的关键抗生素.
- 了解其在老年人群中的药理动力学特征对于优化治疗至关重要.
- 与年龄相关的生理变化可以显著改变药物代谢和分泌.
研究的目的:
- 在住院的中国老年患者中评估伊米的药理动力学和药理动力学.
- 在这个特定的人口群体中开发一种人群药理动力学 (PPK) 模型.
- 评估各种剂量方案对实现治疗目标的影响.
主要方法:
- 一项回顾性队列研究,涉及142名住院的老年患者.
- 使用非线性混合效应建模,构建一个两部分人群的药理动力学模型.
- 分析了370个 imipenem 血度的观察结果.
- 蒙特卡洛模拟用于评估与治疗结果对比的剂量方案.
主要成果:
- PPK模型有效地表征了伊米的度,而肌素清除量被确定为影响清除量的显著共变量.
- 典型的药物动力学参数估计包括清除率 (13.1 L·h−1),区间间清除率 (11.9 L·h−1),中心体积 (11.7 L) 和外周体积 (29.3 L).
- 该模型的有效性通过引导重新抽样和视觉预测检查得到证实.
结论:
- 开发的PPK模型准确地描述了老年患者中阿米皮涅姆的药理动力学.
- 肌素清除率是指导伊米佩内姆在这个人群中的剂量的一个重要参数.
- 这项研究支持了精确剂量策略的潜力,以提高老年人中阿密的疗效和安全性.
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