alexa Comparative Bioavailability Study of Two 81 mg Coated Tablet Formulations of Acetylsalicylic Acid in Fasting Healthy Volunteers | OMICS International | Abstract
ISSN: 0975-0851

Journal of Bioequivalence & Bioavailability
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Research Article

Comparative Bioavailability Study of Two 81 mg Coated Tablet Formulations of Acetylsalicylic Acid in Fasting Healthy Volunteers

Dolores RC1, Antunes NJ1, Moreno R1, Di Vaio P3, Magli E3 and De Nucci G1,2*

1Department of Pharmacology, State University of Campinas (UNICAMP), Campinas, SP, Brazil

2Faculty of Medicine, Metropolitan University of Santos (UNIMES), Santos, Brazil

3Department of Pharmacy, University of Naples Federico II, Naples, Italy

*Corresponding Author:
De Nucci G
State University of Campinas (UNICAMP)
Faculty of Medical Sciences
Department of Pharmacology
Alexander Fleming Street
105, 13083-881, Campinas, SP, Brazil
Tel: 55-19-3251-6928
Fax: 55-19-3252-1516
E-mail: [email protected]

Received Date: July 12, 2017; Accepted Date: July 20, 2017; Published Date: July 31, 2017

Citation: Dolores RC, Antunes NJ, Moreno R, Di Vaio P, Magli E, et al. (2017) Comparative Bioavailability Study of Two 81 mg Coated Tablet Formulations of Acetylsalicylic Acid in Fasting Healthy Volunteers. J Bioequiv Availab 9:477-483. doi: 10.4172/jbb.1000348

Copyright: © 2017 Dolores RC, 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

Introduction: Low-dose acetylsalicylic acid is used as antithrombotic agent and the enteric-coated formulations are widely used to minimize the gastrointestinal side effects.

Aim: To compare the bioavailability of two acetylsalicylic acid formulations (Ecasil-81®, 81 mg coated tablet) in fasting healthy volunteers.

Methods: Healthy volunteers (n=16) were recruited to a monocentric, open label, randomized, two-way crossover pharmacokinetic study, with seven days washout period between the treatments. They received a single 81 mg oral dose of a test (new formulation) or a standard reference formulation of acetylsalicylic acid (Ecasil-81®) after about 8 h fasting. Blood samples were collected over a period of 36 h. The salicylic acid plasma concentration was evaluated by high-performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS). Noncompartmental pharmacokinetic analysis was performed using the WinNonlin program.

Results: The maximum plasma concentration (Cmax) of salicylic acid was 5433 and 5719 ng/mL reached in 3.66 and 4.02 h (tmax) for the test and the reference formulation, respectively. The 90% confidence interval of the ratios of geometric means of Cmax and area under curve of plasma concentration until the last concentration observed (AUC0- last) were within the interval 80-125%.

Conclusion: The new acetylsalicylic acid formulation has a bioavailability equivalent to the reference formulation for the rate and the extent of absorption.

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