Journal
DRUG DEVELOPMENT AND INDUSTRIAL PHARMACY
Volume 29, Issue 6, Pages 653-659Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1081/DDC-120021314
Keywords
bioequivalence; pharmacokinetics; clarithromycin; electrochemical detection; dissolution profile
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The objective of this study was to assess average bioequivalence of two immediate released tablet formulations of 500-mg clarithromycin tablets in 24 healthy Thai male volunteers. In a randomized, single dose, fasting state, two-period, crossover study design with a 1-week washout period, each subject received a 500-mg clarithromycin tablet. Plasma samples were collected over a 24-hour period after oral administration and were analyzed by using a validated method using high performance liquid chromatography with electrochemical detection. Pharmacokinetic parameters were determined by using noncompartmental analysis. The time to reach the maximal concentration (t(max),h), the peak concentration (C-max, ng/mL), and the area under the curve (AUC(0-infinity), ng.h/mL) of the Reference and Test formulations were 2.0 +/- 0.8 vs. 2.2 +/- 0.9, 2793 +/- 1338 vs. 2642 +/- 1344, and 17912 +/- 7360 vs. 17660 +/- 7992, respectively. Relative bioavailability was 0.99. The 90% confidence interval Of C-max and AUC(0-infinity) were 82.6-112.1% and 84.7-112.0%. Bioequivalence between the Test and Reference formulation can be concluded.
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