Pharmacokinetics and bioequivalence study of two brands of loxoprofen tablets in healthy volunteers.
The aims of this study were to assess the pharmacokinetics and bioequivalence of two brands of loxoprofen (CAS 80832-23-6) 60 mg tablets in healthy male volunteers. The several pharmacokinetic parameters were evaluated after an oral administration after an overnight fast according to a single dose, two-sequence, and cross-over randomized design with a 1-week washout interval. Serial blood samples were collected throughout 10 h after administration of the reference and test drug. Plasma was analyzed by validated HPLC with UV detection. Several pharmacokinetic parameters, including AUC(infnity), AUC(t), C(max), T(max), T1/2, and Ke were determined from blood concentrations of both formulations. AUC(t), AUC(infinity) and C(max) were evaluated for bioequivalence after log-transformation of data using ANOVA with 90% confidence interval level. The parametric 90% confidence intervals of AUC(t), AUC(infinity), and C(max) were 90.13-106.34%, 91.43-106.94%, and 91.17-108.53%, respectively. All of the tested parameters were within the acceptable range of 80-125%. Based on these statistical considerations, it was concluded that the test drug was bioequivalent to the reference drug.
Jhee
Ok Hwa
OH
Department of Practical Arts Education, Gongju National University of Education, Gongju-Si, Chungnam, South Korea.
Lee
Min Ho
MH
Shaw
Leslie M
LM
Lee
Seo Eun
SE
Park
Jin Hee
JH
Kang
Ju Seop
JS
D000328:Adult; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage / Q000493:pharmacokinetics*; D019540:Area Under Curve; D002138:Calibration; D002851:Chromatography, High Pressure Liquid; D018592:Cross-Over Studies; D006207:Half-Life; D006801:Humans; D007202:Indicators and Reagents; D008297:Male; D010666:Phenylpropionates / Q000008:administration & dosage / Q000493:pharmacokinetics*; D015203:Reproducibility of Results; D013056:Spectrophotometry, Ultraviolet; D013607:Tablets
D000894:Anti-Inflammatory Agents, Non-Steroidal; D007202:Indicators and Reagents; D010666:Phenylpropionates; D013607:Tablets; C040656:loxoprofen