Chromatographic Characterization and Method Development for Determination of Levetiracetam in Saliva: Application to Correlation with Plasma Levels

Levetiracetam (LVT) is a widely used antiepileptic drug (AED). A less invasive sampling method for therapeutic drug monitoring (TDM) would be very useful particularly for children. Saliva has been shown as an adequate sample for TDM of some AEDs. Due to the high hydrophilicity of LVT its separation...

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Main Authors: Imad I. Hamdan, Mervat Alsous, Amira Taher Masri
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Journal of Analytical Methods in Chemistry
Online Access:http://dx.doi.org/10.1155/2017/7846742
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author Imad I. Hamdan
Mervat Alsous
Amira Taher Masri
author_facet Imad I. Hamdan
Mervat Alsous
Amira Taher Masri
author_sort Imad I. Hamdan
collection DOAJ
description Levetiracetam (LVT) is a widely used antiepileptic drug (AED). A less invasive sampling method for therapeutic drug monitoring (TDM) would be very useful particularly for children. Saliva has been shown as an adequate sample for TDM of some AEDs. Due to the high hydrophilicity of LVT its separation on common stationary phases is quite a challenge so that previous methods for determination of LVT in saliva employed either gradient high performance liquid chromatographic (HPLC) system or mass spectrometer as a detector. In this study the retention behavior of LVT on some common stationary phases was examined, with C8 being the most retentive. A simple isocratic HPLC method that is based on simple protein precipitation was developed and validated for the determination of LVT in saliva. The method was applied to a sample group of epileptic children for the purpose of assessing potential correlation with plasma LVT levels and to investigate patient’s compliance. The results confirmed a reasonable correlation between plasma and salivary levels of LVT (R = 0.9) which supports the use of saliva for TDM of LVT. The study also revealed a significant percentage of epileptic patients having LVT levels below the estimated therapeutic range.
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institution Kabale University
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series Journal of Analytical Methods in Chemistry
spelling doaj-art-9c8f56780e9947158d16b9ecc4119c1e2025-02-03T06:04:42ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732017-01-01201710.1155/2017/78467427846742Chromatographic Characterization and Method Development for Determination of Levetiracetam in Saliva: Application to Correlation with Plasma LevelsImad I. Hamdan0Mervat Alsous1Amira Taher Masri2School of Pharmacy, The University of Jordan, Amman, JordanDepartment of Clinical Pharmacy and Therapeutics, Faculty of Pharmacy, Applied Sciences Private University, Amman, JordanFaculty of Medicine, The University of Jordan, Amman, JordanLevetiracetam (LVT) is a widely used antiepileptic drug (AED). A less invasive sampling method for therapeutic drug monitoring (TDM) would be very useful particularly for children. Saliva has been shown as an adequate sample for TDM of some AEDs. Due to the high hydrophilicity of LVT its separation on common stationary phases is quite a challenge so that previous methods for determination of LVT in saliva employed either gradient high performance liquid chromatographic (HPLC) system or mass spectrometer as a detector. In this study the retention behavior of LVT on some common stationary phases was examined, with C8 being the most retentive. A simple isocratic HPLC method that is based on simple protein precipitation was developed and validated for the determination of LVT in saliva. The method was applied to a sample group of epileptic children for the purpose of assessing potential correlation with plasma LVT levels and to investigate patient’s compliance. The results confirmed a reasonable correlation between plasma and salivary levels of LVT (R = 0.9) which supports the use of saliva for TDM of LVT. The study also revealed a significant percentage of epileptic patients having LVT levels below the estimated therapeutic range.http://dx.doi.org/10.1155/2017/7846742
spellingShingle Imad I. Hamdan
Mervat Alsous
Amira Taher Masri
Chromatographic Characterization and Method Development for Determination of Levetiracetam in Saliva: Application to Correlation with Plasma Levels
Journal of Analytical Methods in Chemistry
title Chromatographic Characterization and Method Development for Determination of Levetiracetam in Saliva: Application to Correlation with Plasma Levels
title_full Chromatographic Characterization and Method Development for Determination of Levetiracetam in Saliva: Application to Correlation with Plasma Levels
title_fullStr Chromatographic Characterization and Method Development for Determination of Levetiracetam in Saliva: Application to Correlation with Plasma Levels
title_full_unstemmed Chromatographic Characterization and Method Development for Determination of Levetiracetam in Saliva: Application to Correlation with Plasma Levels
title_short Chromatographic Characterization and Method Development for Determination of Levetiracetam in Saliva: Application to Correlation with Plasma Levels
title_sort chromatographic characterization and method development for determination of levetiracetam in saliva application to correlation with plasma levels
url http://dx.doi.org/10.1155/2017/7846742
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AT mervatalsous chromatographiccharacterizationandmethoddevelopmentfordeterminationoflevetiracetaminsalivaapplicationtocorrelationwithplasmalevels
AT amiratahermasri chromatographiccharacterizationandmethoddevelopmentfordeterminationoflevetiracetaminsalivaapplicationtocorrelationwithplasmalevels