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Updated: Jan 20, 2026

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Intradermal Inoculation of Mycobacterium avium in the Mouse Ear
Published on: July 3, 2025
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在Mycobacterium avium肺部疾病中使用tedizolid的药理学证据
D Deshpande1, S Srivastava1,2,3, T Gumbo1,4,5,6
1Baylor University Medical Center, Dallas, TX, USA.
IJTLD open
|January 19, 2026
概括
泰迪索利德在肺部疾病模型中有效降低了Mycobacterium avium复合体 (MAC) 的细菌负担. 200-300毫克/天的剂量被建议用于测试用于治疗MAC肺部疾病的新组合.
科学领域:
- 药理学 药理学是指药理学的学科.
- 传染性疾病 传染性疾病
- 呼吸系统医学 呼吸系统医学
背景情况:
- 针对Mycobacterium avium复合体 (MAC) 肺部疾病 (LD) 的基于指导方针的治疗取得了有限的成功,50%-60%的患者患有复发性疾病.
- 泰迪索利德作为治疗剂具有前景,在MAC-LD (HFS-MAC) 空腔纤维模型中,AUC0-24/MIC的目标暴露值为23.46.
研究的目的:
- 在HFS-MAC模型中使用肺内药理动力学来评估tedizolid对多个MAC分离物的疗效.
- 通过蒙特卡洛模拟来确定最佳的口服泰迪索利德剂量,以达到肺部的目标暴露.
主要方法:
- 进行了一项为期28天的HFS-MAC研究,使用了五种临床MAC分离物和六种每日tedizolid暴露物.
- 使用药理学建模 (Emax) 和蒙特卡洛模拟来分析细菌负担,泰迪索利德暴露 (AUC0-24/MIC) 和最佳剂量.
主要成果:
- 泰迪索利德证明了杀死五个MAC临床分离物,从基线减少3.61±1.05 log10 CFU/mL的Emax.
- 目标暴露 (AUC0-24/MIC) 确定为155.5±38.84,具有很高的相关性 (r2=0.98).
- 蒙特卡洛模拟表明,200毫克/天在86%的虚拟患者中实现了目标暴露,300毫克/天在93%的虚拟患者中实现了目标暴露.
结论:
- 泰迪索利德在体外肺部模型中对各种MAC分离物表现出强烈的活性.
- 200-300毫克/天的泰迪索利德剂量被提议作为MAC-LD新治疗策略的基本组成部分进行进一步研究.
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