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Inhibitory effect of celecoxib on agomelatine metabolism in vitro and in vivo

Authors He JY, Fang P, Zheng X, Wang CC, Liu TH, Zhang BW, Wen J, Xu RA

Received 19 December 2017

Accepted for publication 31 January 2018

Published 9 March 2018 Volume 2018:12 Pages 513—519


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Dr Anastasios Lymperopoulos

Jiayang He,1 Ping Fang,2 Xiang Zheng,2 Chenchen Wang,2 Tenghui Liu,2 Bowen Zhang,2 Jian Wen,2 Ren-ai Xu3

1Department of Pharmacy, The First Hospital of Jiaxing, Jiaxing, Zhejiang, China; 2Department of Pharmacology, School of Pharmacy of Wenzhou Medical University, Wenzhou, Zhejiang, China; 3Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China

Aim: The aim of this study was to study the effect of celecoxib on agomelatine metabolism in vitro and in vivo.
Methods: Ten healthy male Sprague–Dawley rats were randomly divided into 2 groups: Group A (control group) and Group B (30 mg/kg celecoxib). Then a single dose of 20 mg/kg agomelatine was administered orally 30 min after administration of celecoxib. In an in vitro study, celecoxib with a series of concentrations was added to an incubation mixture containing recombinant human CYP2C9, human or rat liver microsomes to determine the half-maximal inhibitory concentration on the metabolism of agomelatine. Moreover, a mechanism study was performed to determine the inhibitory effect of celecoxib on CYP2C9.
Results: The results showed that a single dose of 30 mg/kg celecoxib significantly increased the area under the concentration-time curve and maximum concentration of agomelatine. In addition, celecoxib inhibited the metabolism of agomelatine in the in vitro studies, which was determined to be by a competitive mechanism on CYP2C9. Those results indicated that celecoxib has an inhibitory effect on the metabolism of agomelatine both in vivo and in vitro.
Conclusion: Thus, more attention should be paid when celecoxib is administered combined with agomelatine.

Keywords: agomelatine, liver microsomes, pharmacokinetics, celecoxib, CYP2C9
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