一个用于皮下注射单克隆抗体的容器模型
Xiaoxu Zhong1, Yikai Liu1, Arezoo M Ardekani1
1School of Mechanical Engineering, Purdue University, West Lafayette, IN 47906, United States.
International journal of pharmaceutics
|December 16, 2023
概括
皮下单克隆抗体 (mAb) 药理动力学可以通过新的隔间模型更好地理解. 该模型强调了运输速率如何影响mAb半衰期和生物可用性,这对于SC药物开发至关重要.
科学领域:
- 药理动力学和药物新陈代谢
- 生物技术和生物制品 生物技术和生物制品
- 免疫学 免疫学 免疫学
背景情况:
- 单克隆抗体 (mAbs) 的皮下 (SC) 管理越来越受欢迎.
- 关于间歇性和淋巴运输速率对SC mAb药理学的影响的了解有限.
- FcRn受体在mAb处置中的作用至关重要,但需要进一步阐明SC路径.
研究的目的:
- 开发和验证一个用于预测SC mAb药理动学的隔间模型.
- 研究mAb传输速率常数在间歇性和淋巴系统对药理动力学参数的影响.
- 为了将模型预测与来自人类和老鼠研究的实验数据相关联.
主要方法:
- 为SC mAbs.开发一个基于生理学的药理动力学 (PBPK) 分区模型.
- 结合FcRn表达细胞和组织,淋巴和血之间的差异性传输速率.
- 模型验证使用SC mAbs.现有的人类和大鼠药理动力学数据进行模型验证.
主要成果:
- 该模型准确地预测了SC mAbs.的Tmax,Cmax和半衰期.
- Tmax与mAb半衰期的阳性相关性很弱,与生物可用性的相关性微不足道.
- mAb 半衰期与生物可用性有很强的相关性,受淋巴至血输送速率的显著影响.
结论:
- 开发的隔间模型为SC mAb的药理动力学提供了宝贵的见解.
- 优化从注射部位到淋巴和从淋巴到血的mAb运输可以提高生物可用性.
- 了解这些传输动态对于设计有效的SC mAb疗法至关重要.
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