临床重症患者接受各种形式的替代疗法时使用线索利德的剂量:综合群体的药理动力学分析
Qian Liu1, Sanwang Li2, Feifan Xie1
1Division of Biopharmaceutics and Pharmacokinetics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China.
International journal of antimicrobial agents
|August 13, 2023
概括
标准的linezolid剂量对于接受脏替代疗法 (RRT) 的危急病患者,功能保持不变,是不够的. 然而,标准剂量对无尿性RRT患者有效,MIC值低,毒性风险最小.
科学领域:
- 药理学 药理学是指药理学的学科.
- 关键护理医学 关键护理医学
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 改变线胺的药理动力学 (PK) 在接受脏替代疗法 (RRT) 的重症患者中很常见.
- 在这些复杂的患者群体中,标准的linezolid剂量可能无法达到治疗目标.
研究的目的:
- 在接受RRT的患者中进行线索利德的聚合人群PK分析.
- 评估标准用线索利德剂量 (600 mg q12h) 的药理动力学目标的实现和毒性风险.
主要方法:
- 开发了一个人群PK模型,使用69名IHD,SLED或CRRT患者的414个linezolid度观测.
- 在85%的T>MIC和AUC/MIC>100时,实现目标的估计概率 (PTA).
- 基于Cmin ≥10 mg/L的评估毒性风险.
主要成果:
- 莱涅佐利德PK被两部分模型充分描述;功能和体重影响了清除.
- 在保留功能的RRT患者中,MIC≥1 mg/L的PTA低 (0-58.6%).
- 在无尿性RRT患者 (MIC ≤2 mg/L) 中,可达到理想的PTA (≥90%),毒性风险可以忽略不计.
- 在IHD或SLED治疗的无尿患者面临高毒性风险 (17.9-20.9%) (Cmin ≥10 mg/L).
结论:
- 标准的linezolid剂量对于MIC ≤2 mg/L的无尿性RRT患者来说是足够的.
- 对于保留功能的RRT患者,需要调整剂量,以优化疗效并最大限度地降低毒性.
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