Single-dose pharmacokinetics of paliperidone extended-release tablets in healthy Chinese subjects
Article first published online: 29 JUN 2010
Copyright © 2010 John Wiley & Sons, Ltd.
Human Psychopharmacology: Clinical and Experimental
Volume 25, Issue 5, pages 404–409, July 2010
How to Cite
Tianmei, S., Liang, S., Yi, L., Yun'Ai, S., Chunmei, G. and Hongyan, Z. (2010), Single-dose pharmacokinetics of paliperidone extended-release tablets in healthy Chinese subjects. Hum. Psychopharmacol. Clin. Exp., 25: 404–409. doi: 10.1002/hup.1132
- Issue published online: 29 JUN 2010
- Article first published online: 29 JUN 2010
- Manuscript Accepted: 18 MAY 2010
- Manuscript Received: 23 FEB 2010
- paliperidone ER;
Paliperidone is the active metabolite of risperidone. This single-center, double-blind, randomized, single-dose study characterized the pharmacokinetics of 3 mg and 9 mg of paliperidone ER OROS® in healthy Chinese subjects.
24 subjects (13 male, 11 female), aged 19–35 years, with a BMI of 19.0–24.6 kg/m2 participated. Blood samples were collected immediately before and over 96 h following single oral doses of 3 mg and 9 mg paliperidone. Plasma paliperidone concentrations were determined, and pharmacokinetic parameters were analyzed.
Paliperidone's disposition after oral administration was characterized by a one-compartment pharmacokinetic model. Paliperidone was well absorbed (median tmax: 24 h after a 3-mg dose, and 26 h after a 9-mg dose). Apparent clearance and apparent volume of distribution were not significantly different between the two doses. Cmax, AUC0-t, and AUC0-∞ were dose-dependent. Pharmacokinetics was linear with respect to time; Geometric mean t1/2 was 22.8 h and 21.4 h in 3-mg and 9-mg groups, respectively. No clinically significant safety issues were identified.
The pharmacokinetic results obtained in Chinese subjects were similar to those obtained in Japanese and Caucasian subjects. Copyright © 2010 John Wiley & Sons, Ltd.