alexa Bioequivalence Study of Two 50 mg Desvenlafaxine Extend
ISSN: 0975-0851

Journal of Bioequivalence & Bioavailability
Open Access

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Research Article

Bioequivalence Study of Two 50 mg Desvenlafaxine Extended Release Formulations: A Randomized, Single-Dose, Open-Label, Two Periods, Crossover Study

Vargas M1*, Villarraga E2 and Vargas Jba3

1Odontologist, Pharmacologist, Scientific Director Pharmacology Unit La Sabana University, Bogotá - Colombia

2Physician, Pharmacologist, Clinical phase Medical Coordinator, Bogotá - Colombia

3Pharmaceutical Chemist, Toxicologist, analytical method Responsible, Bogotá - Colombia

*Corresponding Author:
Vargas M
Scientific Director, Pharmacology Unit
La Sabana University, Bogotá – Colombia
Tel: 555-23-34 Ext. 8106
E-mail: [email protected]

Received Date: May 14, 2014; Accepted Date: June 29, 2014; Published Date: July 05, 2014

Citation: Vargas M, Villarraga E, Vargas Jba (2014) Bioequivalence Study of Two 50 mg Desvenlafaxine Extended Release Formulations: A Randomized, Single-Dose, Open-Label, Two Periods, Crossover Study. J Bioequiv Availab 6: 115-118. doi: 10.4172/jbb.10000189

Copyright: © 2014 Vargas M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

This is a pharmacokinetic study of two formulations containing Desvenlafaxine succinate 50 mg extended release. Its objective was to compare the bioavailability between the Test product (Desvenlafaxine ER produced by Tecnoquímicas S.A., Colombia laboratory) and the Reference product (Pristiq XR® produced by Wyeth laboratory) and to be able to determine the Bioequivalence between the both of them. For this, an open label, two periods, two previously randomized sequences, crossover, single postprandial 100 mg dose study with an 8 days washout period between each period in 24 healthy volunteers was performed, including the collection of 13 plasma samples within 0 and 48 hours from all volunteers who participated in the clinical phase. The analytical method used was High Performance Liquid Chromatography (HPLC) with UV detector. The obtained mean peak concentration (Cmax) for the Test and Reference products were 215.8 ng/mL and 196.9 ng/mL and for the area under the curve up to 48 hours (AUC0-t) 3849,6 ng.h/mL and 3605,4 ng.h/mL respectively. The 90% confidence interval for the Cmax parameter is within the range of 103,58-113,63 and for the AUC0-t parameter, the 90% confidence interval is within 97,96-111,39. Based on the FDA, EMA and WHO bioequivalence investigation guidelines, the CI is within the allowed ranges for bioequivalence and interchangeability declaration of the Tecnoquímicas S.A. product with the Reference product.

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