细胞内伊斯拉特拉维尔三酸盐半衰期支持延长剂量间隔
Xiaowei Zang1, Wendy Ankrom1, Walter K Kraft2
1Merck & Co., Inc., Rahway, New Jersey, USA.
Antimicrobial agents and chemotherapy
|August 6, 2024
概括
伊斯拉特拉维尔 (Islatravir) 是一种实验性口服抗逆转录病毒药物,其活性形式的长血半衰期为73小时,细胞内半衰期为195小时. 这些发现支持其作为长效艾滋病毒治疗的潜力.
科学领域:
- 药理学 药理学是指药理学的学科.
- 病毒学 病毒学
- 药物开发 药物开发
背景情况:
- 抗逆转录病毒疗法 (ART) 显著改善了艾滋病毒感染者的结果.
- 伊斯拉特拉维尔是一种试验中的核酸逆转录酶转位抑制剂,具有长效口服艾滋病毒治疗的潜力.
- 了解伊斯拉特拉维尔的药理动力学特征对于开发延长剂量方案至关重要.
研究的目的:
- 在血中确定伊斯拉特拉维尔的终端半衰期 (t1⁄2).
- 在外周血液单核细胞 (PBMCs) 中,描述活性代谢物伊斯拉特维尔三酸盐 (islatravir-TP) 的细胞内药理学和终端t1⁄2 .
- 为了评估单次口服剂量伊斯拉特拉维尔的安全性.
主要方法:
- 一个单位,开放标签,非随机,单剂量第一阶段研究.
- 给健康的成年男性 (18-65岁) 用单次30毫克口服伊斯拉特拉维尔剂量.
- 在6周内对血中的伊斯拉特拉维尔和PBMC中的伊斯拉特拉维尔-TP的药理动力学分析.
主要成果:
- 达到最大血益斯拉特拉维尔度的中位时间为1小时.
- 血伊斯拉特拉维尔呈现双相衰退,终端t1⁄2为73小时.
- 在PBMC中,细胞内伊斯拉特拉维尔-TP的终端t1⁄2为8.1天 (195小时),几何变化系数为25.6%.
结论:
- 伊斯拉特拉维尔证明了长时间的血半衰期.
- 伊斯拉特拉维尔-TP具有延长的细胞内半衰期,支持其延长剂量间隔的潜力.
- 伊斯拉特拉维尔耐受性良好,没有观察到与药物相关的不良事件,这表明它具有良好的安全性.
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