通过短时间,长时间或连续输注给塞菲德罗科尔的最佳剂量方案:PK/PD模拟研究
Sylvain Goutelle1,2,3, Najib Ammour1, Tristan Ferry2,3,4
1Service de Pharmacie, Hospices Civils de Lyon, GH Nord, Hôpital de la Croix-Rousse, Lyon, France.
The Journal of antimicrobial chemotherapy
|December 23, 2024
概括
替代的 cefiderocol输液策略,包括短输液 (SI) 和连续输液 (CI),显示出实现治疗目标的希望. 持续输液可能对肺炎患者特别有益,尽管需要进一步的临床研究.
科学领域:
- 药理学和传染病的研究
- 抗微生物药物管理委员会
背景情况:
- 塞菲德罗科尔的剂量通常使用长时间输注 (PI),这可能不是普遍有效的.
- 优化Cefiderocol的使用对于治疗耐药性感染至关重要.
研究的目的:
- 评估使用短输注 (SI) 和连续输注 (CI) 的替代 cefiderocol 剂量方案.
- 为了确定超越标准长时间输注的最佳 cefiderocol 给药策略.
主要方法:
- 对1000名患者进行了药理动力学/药理动力学 (PK/PD) 模拟.
- 模拟考虑了药物透到肺炎的上皮层内膜液 (ELF).
- 实现目标的概率 (PTA) 为各种肌素清除率 (CLCR) 水平和输液策略 (PI,SI,CI) 计算,以2 mg/L的 cefiderocol MIC 断点为准.
主要成果:
- 所有标准PI疗法都实现了≥90%的血PTA.
- 一些SI疗法和所有CI疗法都显示可接受的血PTA,即使在较低剂量的高CLCR.
- 标准PI未能在CLCR≥90mL/min的患者中达到ELF的目标PTA;CI疗法显示PTA更高,但需要更高的剂量 (6-8g/24h).
结论:
- 短输注 (SI) 和连续输注 (CI) 赛菲德罗科尔方案是延长输注 (PI) 的潜在替代方案.
- 连续输注可能特别有利于在肺炎中使用 cefiderocol 治疗.
- 需要对这些替代输液策略进行进一步的临床验证.
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