固定剂量达普托米辛:在黄金葡萄球菌感染中,药理动力学/药理动力学优化的机会
Katie B Olney1,2, Manjunath P Pai3, Jenni K Thomas1
1Department of Pharmacy, University of Kentucky HealthCare, Lexington, Kentucky, USA.
Pharmacotherapy
|July 30, 2024
概括
固定的达普托米辛剂量有望提高疗效和安全性. 根据性别和功能调整剂量可能会改善结果,但仍建议对治疗药物进行监测,以获得最佳的患者护理.
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
- 抗微生物药物管理委员会
背景情况:
- 达普托米辛是一种关键的静脉注射抗生素,方便每天服用一次.
- 以前的研究表明,固定的剂量可能在操作上比基于体重的剂量更简单.
- 对固定剂量达普托米辛治疗方案的前性研究是有限的.
研究的目的:
- 在成年人中前性评估固定剂量达普托米辛 (750毫克) 治疗方案,评估疗效和毒性.
- 构建一个人群的药理动力学模型,以了解达普素的暴露和清除.
- 模拟各种固定和基于体重的达普托米辛剂量,以预测治疗目标的实现.
主要方法:
- 在肥胖和非肥胖成年人中对750毫克固定剂量达普托米辛疗法的前性研究.
- 在稳定状态下测量达普托米辛度,用于药理动力学分析.
- 种群药动力学建模以评估度-时间概况并确定清除共变量.
- 模拟以评估实现疗效 (AUC0-24 ≥666 mg·h/L) 和毒性 (Cmin ≥24.3 mg/L) 目标的概率.
主要成果:
- 分析了31名成年患者,平均年龄为50岁,体重为74公斤.
- 750毫克的固定剂量在不同体重类别中产生了类似的达普素暴露 (AUC0-24).
- 男性性别和增加的功能与更高的剂量要求有关.
- 两名患者 (6.5%) 经历了肌酸基酶的升高,固定剂量的预测率较低.
结论:
- 根据性别和功能调整的固定达普托米辛剂量可以提高疗效与毒性比,简化护理过渡,降低成本.
- 没有实证剂量策略被预测能够持续达到90%以上的疗效,同时最大限度地降低毒性风险.
- 个性化治疗药物监测对于优化患者特异性基础上的达普托米辛治疗至关重要.
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