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Wang A, Yan X, Liang R, Wang L, Chu L, Sun K, Fu F. Preparation and evaluation of lactic acid acylated exenatide and its long-acting preparation. Pharm Dev Technol 2019; 24:1229-1235. [PMID: 31368418 DOI: 10.1080/10837450.2019.1651857] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Exenatide (EX), a glucagon-like peptide-1 receptor agonist, is used to treat diabetes mellitus. However, its short half-life necessitates frequent administration and fluctuations in its plasma concentration may cause adverse effects. Previously, we developed glycolic acid acylated EX, which showed a good glucose-lowering effect. However, the release of lactic acid (LA) acylated exenatide (LA-EX) as an acylated adduct in EX microspheres has not been studied. Here, we investigated the biological properties of LA-EX. Additionally, LA-EX-loaded microspheres were formulated by an emulsion-solvent evaporation method and their in vitro characteristics, in vivo pharmacokinetic properties, and antidiabetic activities were evaluated. Pharmacokinetic studies revealed that the t1/2 of LA-EX (5.95 h) was 2.3-fold longer than that of EX. The antidiabetic activities of LA-EX in db/db mice were similar to those of EX. LA-EX release from microspheres was fairly well-sustained compared to that of EX microspheres. Additionally, LA-EX-loaded microspheres were more effective in lowering nonfasting blood glucose concentrations than EX microspheres. These findings suggest that LA-EX have the same efficacy as EX and that encapsulating LA-EX into microspheres can achieve better efficacy for the long-term type 2 diabetes mellitus treatment.
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Affiliation(s)
- Aiping Wang
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Xiuju Yan
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Rongcai Liang
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Linlin Wang
- State Key Laboratory of Long-Acting and Targeting Drug Delivery System, Shandong Luye Pharmaceutical Co., Ltd , Yantai , Shandong Province , People's Republic of China
| | - Liuxiang Chu
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Kaoxiang Sun
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , People's Republic of China
| | - Fenghua Fu
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University , Yantai , Shandong Province , People's Republic of China
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Acylation of Exenatide by Glycolic Acid and its Anti-Diabetic Activities in db/db Mice. Pharm Res 2014; 31:1958-66. [DOI: 10.1007/s11095-014-1298-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Accepted: 01/14/2014] [Indexed: 10/25/2022]
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Stability of exenatide in poly(d,l-lactide-co-glycolide) solutions: A simplified investigation on the peptide degradation by the polymer. Eur J Pharm Sci 2013; 50:502-10. [DOI: 10.1016/j.ejps.2013.08.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 08/10/2013] [Accepted: 08/12/2013] [Indexed: 11/22/2022]
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Liang R, Li X, Shi Y, Wang A, Sun K, Liu W, Li Y. Effect of water on exenatide acylation in poly(lactide-co-glycolide) microspheres. Int J Pharm 2013; 454:344-53. [DOI: 10.1016/j.ijpharm.2013.07.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 05/30/2013] [Accepted: 07/02/2013] [Indexed: 11/25/2022]
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