期刊
DRUG DEVELOPMENT AND INDUSTRIAL PHARMACY
卷 42, 期 7, 页码 1042-1049出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/03639045.2015.1107090
关键词
Exenatide; sustained-release formulation; type II diabetes; vesicular phospholipid gels
资金
- National Science Foundation of China [81273443]
- National S&T Major Project of China [2014ZX09507001]
Diabetes is a chronic disease that requires daily treatment to maintain a stable blood glucose level. Sustained-release formulations can thus benefit the treatment of diabetes by reducing the repeated administration of therapeutics. Our study aimed to develop a sustained-release platform for exenatide that is biocompatible and capable of mass production. Vesicular phospholipid gels (VPGs) are semisolid phospholipid dispersions with controlled release profiles. Exenatide-VPGs prepared via simple magnetic stirring showed excellent biocompatibility with an average particle size of about 15m after redispersion. VPGs were shown to achieve sustained release for up to 21 days invitro with no obvious burst effect. The invivo release study showed that VPGs sustained the release of the exenatide for up to 11 days. Moreover, after subcutaneous injection of the exenatide-VPGs in the diabetic rats, the hypoglycemic effect lasted for 10 days compared with exenatide solution. In sum, the exenatide-VPGs system represents a promising sustained-release formulation for exenatide with a long-acting therapeutic efficacy invivo.
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