在基于细胞的检测中建立体外功效与经批准的GLP-1受体激活剂的临床有效度之间的关系
Alessandro Boianelli1, Pär Nordell1, Joseph Earl2
1DMPK, Research and Early Development Cardiovascular, Renal and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, 431 83 Mölndal, Sweden.
Pharmaceutics
|October 26, 2024
概括
类似葡萄糖-1受体激动剂 (GLP-1RAs) 显示在体内有效性得到改善,当体内有效性在没有血清白蛋白的情况下测量时. 这一发现有助于预测人体剂量和设计新GLP-1RAs试验.
科学领域:
- 药理学 药理学是指药理学的学科.
- 内分泌学 在内分泌学.
- 药物开发 药物开发
背景情况:
- 类似葡萄糖-1受体激动剂 (GLP-1RAs) 对于管理2型糖尿病 (T2D) 和肥胖至关重要.
- 虽然正在研究剂量方案,但将体外疗效转化为体外疗效需要进一步分析.
- 目前对于GLP-1RAs缺乏对这种翻译的全面理解.
研究的目的:
- 分析GLP-1RAs的体外功效数据对体内功效的转化.
- 为了确定体外测定条件和临床结果 (HbA1c和体重) 之间的相关性.
- 提高对人类剂量预测和新型GLP-1RAs临床试验设计的信心.
主要方法:
- 收集了五种已批准的GLP-1RA的药理动力学数据,以模拟暴露档案.
- 将已发表的临床疗效终点 (HbA1c,体重) 与内部的体外疗效值进行比较.
- 研究了目标覆盖范围 (药物暴露与未结合的效能) 和临床疗效之间的相关性.
主要成果:
- 在没有血清白蛋白或使用卵白蛋白的体外功效测试显示了与体内功效的最佳相关性.
- 使用内源细胞系或人血清白蛋白进行的测试导致了较高的残留变异性.
- 暴露>100倍EC50在无白蛋白试验与>1.5%的HbA1c降低相关;需要5%的体重减轻~3倍的暴露.
结论:
- 在体外功效和体内功效之间的关系最好在缺乏血清白蛋白的试验中定义.
- 这种已建立的关系增强了对预测新GLP-1RA的人类剂量的信心.
- 这些发现将有助于优化GLP-1RA开发的发现和早期临床试验设计阶段.
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