用于exenatide口服的自乳化输送系统:疏水离子离子对与干逆
Marlene Ramona Schmidt1, Melanie Lena Ebert1, Magnus Andre Kiechle1
1Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria.
International journal of pharmaceutics
|May 13, 2025
概括
两种新的策略,即疏水离子配对 (HIP) 和干逆 (dRM),显著提高了糖尿病药物埃克西纳提德的口服生物可用性. 这两种方法都显示出增强药物输送系统的前景.
科学领域:
- 制药科学 制药科学
- 药物运输 药物运输 药物运输
- 生物技术是生物技术.
背景情况:
- 作为GLP-1受体激动剂的exenatide在治疗糖尿病的口服生物可用性方面面临挑战.
- 需要创新的策略来改善口服输送的基治疗药物,如exenatide.
- 自乳化药物输送系统 (SEDDS) 提供了一个增强药物吸收的潜在平台.
研究的目的:
- 为了比较分析疏水离子离子配对 (HIP) 和干逆 (dRM) 以提高exenatide口服生物可用性.
- 通过使用这些新的策略,制定和表征含埃克赛纳提德的SEDDS.
- 评估开发的配方的体外和体内性能.
主要方法:
- 在SEDDS中,exenatide是使用HIP与cationic表面活性剂和dRM与sorbitan monooleate配合制成的.
- SEDDS配方中含有烯基醇二甲酸盐,酸甲基和多氧化-35麻油.
- 分析了粒子大小,多分散度指数,泽塔潜力和脂友性 (log D).
- 在体内研究中,与静脉注射相比,评估了相对生物可用性.
主要成果:
- SEDDS粒子大小在95-110纳米之间,PDI约为0.25和zeta电位在-1mV和-6mV之间.
- 含埃克塞纳提德的HIP (ExeHIP) 和dRM (ExedRM) 显示出高的脂友性 (分别为~2.13和~2.05的log D值).
- 口服相对生物利用率为ExeHIP的18.08%和ExedRM的17.06%,明显高于对照组.
- ExeHIP提供了更好的释放控制和稳定的GLP-1水平;由于GRAS助剂,dRM显示出更高的安全性.
结论:
- 当被纳入SEDDS时,HIP和drm策略都有效地提高了exenatide的口服生物可用性.
- HIP提供了改进的药物释放动力学,而dRM提供了增强的安全性和FDA批准的辅助剂.
- 这些发现强调了HIP和dRM在SEDDS中的潜力,用于口服类药物,如exenatide.
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