1
|
Gondhale-Karpe P, Manwatkar S. Quantitative determination of related substances for Lamotrigine extended release tablet by RP-HPLC. Heliyon 2023; 9:e15732. [PMID: 37215899 PMCID: PMC10192681 DOI: 10.1016/j.heliyon.2023.e15732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/18/2023] [Accepted: 04/20/2023] [Indexed: 05/24/2023] Open
Abstract
Lamotrigine extended release tablet dosage form LAMICTAL XR used as an anticonvulsant in the treatment of generalized tonic clonic, absence seizures and partial seizures. The objective of the present study is to develop and validate analytical method for the estimation of related substances in the LAMICTAL XR from GSK; however it is very important to have simple, sensitive, robust and validated analytical method. Hence a precise RP-HPLC analytical method developed for the determination of Related substances in LAMICTAL XR tablet dosage form with gradient elution pattern having mobile phase A as buffer pH 8.0 and mobile phase B as an Acetonitrile at 1.5 mL/min flowrate, using Hypersil BDS C18 column, ambient column temperature and PDA detector with wavelength 220 nm. The analytical method is validated as per ICH guidelines including its forced degradation studies. The method was found to be linear in the range of 0.2 ppm to 2.5 ppm with correlation coefficient 0.999. Accuracy performed at LOQ to 250% level and recovery was found to be in the range of 95% to 105%. Therefore the developed related substances method provides a safe, easy and reproducible for the stability studies and QC release testing for the estimation of related substances.
Collapse
|
2
|
Ciucu AA, Buleandră M, Ciurea T, Stoica VN, Ştefanescu CD, Ciobanu A. A New Voltammetric Approach for Electrochemical Determination of Lamotrigine in Pharmaceutical Samples. ELECTROANAL 2021. [DOI: 10.1002/elan.202100037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Anton A. Ciucu
- University of Bucharest Faculty of Chemistry Department of Analytical Chemistry 90-92 Panduri Av. 050663 Bucharest Romania
| | - Mihaela Buleandră
- University of Bucharest Faculty of Chemistry Department of Analytical Chemistry 90-92 Panduri Av. 050663 Bucharest Romania
| | - Tatiana Ciurea
- Bagdasar-Arseni Emergency Clinical Hospital Functional Neurosurgery Department EEG Epilepsy Research Section) Berceni Av. 041915 Bucharest Romania
| | - Vlad N. Stoica
- University of Bucharest Faculty of Chemistry Department of Analytical Chemistry 90-92 Panduri Av. 050663 Bucharest Romania
| | - Cristian D. Ştefanescu
- National Institute of Aeronautical and Aerospace Medicine Gen. Dr. Victor Anastasiu 88 Mircea Vulcanescu Str. Bucharest Romania
| | - Adela Ciobanu
- University of Medicine and Pharmacy Carol Davila Department of Psychiatry Bucharest Romania
| |
Collapse
|
3
|
A simple, rapid and stability indicating validated method for quantification of lamotrigine in human plasma and dry plasma spot using LC-ESI–MS/MS: Application in clinical study. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1072:362-369. [DOI: 10.1016/j.jchromb.2017.11.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/19/2017] [Accepted: 11/30/2017] [Indexed: 11/21/2022]
|
4
|
Development and Validation of HLPC Method for the Estimation of Lamotrigine in Bulk and Pharmaceutical Formulations. J CHEM-NY 2013. [DOI: 10.1155/2013/846170] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
5
|
Ghatol S, Vithlani V, Gurule S, Khuroo A, Monif T, Partani P. Liquid chromatography tandem mass spectrometry method for the estimation of lamotrigine in human plasma: Application to a pharmacokinetic study. J Pharm Anal 2012; 3:75-83. [PMID: 29403800 PMCID: PMC5760919 DOI: 10.1016/j.jpha.2012.09.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 09/18/2012] [Indexed: 12/01/2022] Open
Abstract
A reliable, selective and sensitive liquid chromatography tandem mass spectrometry method was developed and validated for the quantification of lamotrigine in human plasma using lamotrigine-13C3, d3 as an internal standard. Analyte and internal standard were extracted from human plasma by solid-phase extraction and detected in positive ion mode by tandem mass spectrometry with electrospray ionization (ESI) interface. Chromatographic separation was performed on a Chromolith® SpeedROD; RP-18e column (50−4.6 mm i.d.) using acetonitrile: 5±0.1 mM ammonium formate solution (90:10, v/v) as the mobile phase at a flow rate of 0.500 mL/min. The calibration curves were linear over the range of 5.02–1226.47 ng/mL with the lower limit of quantitation validated at 5.02 ng/mL. The analytes were found stable in human plasma through three freeze (−20 °C)-thaw (ice-cold water bath) cycles and under storage on bench-top in ice-cold water bath for at least 6.8 h, and also in the mobile phase at 10 °C for at least 57 h. The method has shown good reproducibility, as the intra- and inter-day precisions were within 3.0%, while the accuracies were within ±6.0% of nominal values. The validated LC–MS/MS method was applied for the evaluation of pharmacokinetic and bioequivalence parameters of lamotrigine after an oral administration of 50 mg lamotrigine tablet to thirty-two healthy adult male volunteers.
Collapse
Affiliation(s)
- Santosh Ghatol
- Department of Clinical Pharmacology and Pharmacokinetics, Ranbaxy Research Laboratories, Plot: GP-V, Sec-18, HSIIDC, Gurgaon 122015, Haryana, India
| | - Vatsal Vithlani
- Department of Clinical Pharmacology and Pharmacokinetics, Ranbaxy Research Laboratories, Plot: GP-V, Sec-18, HSIIDC, Gurgaon 122015, Haryana, India
| | - Sanjay Gurule
- Department of Clinical Pharmacology and Pharmacokinetics, Ranbaxy Research Laboratories, Plot: GP-V, Sec-18, HSIIDC, Gurgaon 122015, Haryana, India
| | - Arshad Khuroo
- Department of Clinical Pharmacology and Pharmacokinetics, Ranbaxy Research Laboratories, Plot: GP-V, Sec-18, HSIIDC, Gurgaon 122015, Haryana, India
| | - Tausif Monif
- Department of Clinical Pharmacology and Pharmacokinetics, Ranbaxy Research Laboratories, Plot: GP-V, Sec-18, HSIIDC, Gurgaon 122015, Haryana, India
| | - Pankaj Partani
- Department of Clinical Pharmacology and Pharmacokinetics, Ranbaxy Research Laboratories, Plot: GP-V, Sec-18, HSIIDC, Gurgaon 122015, Haryana, India
| |
Collapse
|
6
|
Saberi RS, Shahrokhian S. Highly sensitive voltammetric determination of lamotrigine at highly oriented pyrolytic graphite electrode. Bioelectrochemistry 2011; 84:38-43. [PMID: 22137203 DOI: 10.1016/j.bioelechem.2011.10.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2011] [Revised: 10/24/2011] [Accepted: 10/28/2011] [Indexed: 10/15/2022]
Abstract
The electrochemical behavior of lamotrigine (LMT) at the pyrolytic graphite electrode (PGE) is investigated in detail by the means of cyclic voltammetry. During the electrochemical reduction of LMT, an irreversible cathodic peak appeared. Cyclic voltammetric studies indicated that the reduction process has an irreversible and adsorption-like behavior. The observed reduction peak is attributed to a two-electron process referring to the reduction of azo group. The electrode showed an excellent electrochemical activity toward the electro-reduction of LMT, leading to a significant improvement in sensitivity as compared to the glassy carbon electrode. The results of electrochemical impedance spectroscopy and cyclic voltammetry showed that edge-plane pyrolytic graphite electrode has excellent electrochemical response properties toward LMTs with respect to glassy carbon electrode modified with carbon nanotubes. High sensitivity, low detection limit and very good repeatability together with excellent recovery make the electrode as a powerful devise for accurate determination of LMT in pharmaceutical and biological samples.
Collapse
|
7
|
Kang J, Park YS, Kim SH, Kim SH, Jun MY. Modern methods for analysis of antiepileptic drugs in the biological fluids for pharmacokinetics, bioequivalence and therapeutic drug monitoring. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2011; 15:67-81. [PMID: 21660146 DOI: 10.4196/kjpp.2011.15.2.67] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Revised: 04/10/2011] [Accepted: 04/15/2011] [Indexed: 12/20/2022]
Abstract
Epilepsy is a chronic disease occurring in approximately 1.0% of the world's population. About 30% of the epileptic patients treated with availably antiepileptic drugs (AEDs) continue to have seizures and are considered therapy-resistant or refractory patients. The ultimate goal for the use of AEDs is complete cessation of seizures without side effects. Because of a narrow therapeutic index of AEDs, a complete understanding of its clinical pharmacokinetics is essential for understanding of the pharmacodynamics of these drugs. These drug concentrations in biological fluids serve as surrogate markers and can be used to guide or target drug dosing. Because early studies demonstrated clinical and/or electroencephalographic correlations with serum concentrations of several AEDs, It has been almost 50 years since clinicians started using plasma concentrations of AEDs to optimize pharmacotherapy in patients with epilepsy. Therefore, validated analytical method for concentrations of AEDs in biological fluids is a necessity in order to explore pharmacokinetics, bioequivalence and TDM in various clinical situations. There are hundreds of published articles on the analysis of specific AEDs by a wide variety of analytical methods in biological samples have appears over the past decade. This review intends to provide an updated, concise overview on the modern method development for monitoring AEDs for pharmacokinetic studies, bioequivalence and therapeutic drug monitoring.
Collapse
Affiliation(s)
- Juseop Kang
- Pharmacology & Clinical Pharmacology Lab, College of Medicine, Hanyang University, Seoul 133-791, Korea
| | | | | | | | | |
Collapse
|
8
|
Martins MT, Paim CS, Steppe M. Development of a dissolution test for lamotrigine in tablet form using an ultraviolet method. BRAZ J PHARM SCI 2010. [DOI: 10.1590/s1984-82502010000200003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A dissolution test for tablets containing 100 mg of lamotrigine was developed and validated. The dissolution test was applied to compare the dissolution profile of Neural® with the reference product Lamictal®. The analysis procedure was carried out using a simple ultraviolet method at 267 nm. After the determination of solubility and sink conditions, the parameters selected were paddles at 50 rpm, 900 mL of 0.01 M hydrochloric acid, and 30 minutes duration (single point). This method was validated for specificity, linearity, accuracy, precision and robustness. Lamotrigine stability was also evaluated in dissolution medium.
Collapse
|
9
|
AbuRuz S, Al-Ghazawi M, Al-Hiari Y. A Simple Dried Blood Spot Assay for Therapeutic Drug Monitoring of Lamotrigine. Chromatographia 2010. [DOI: 10.1365/s10337-010-1569-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
10
|
Domínguez-Renedo O, Calvo MEB, Arcos-Martínez MJ. Determination of Lamotrigine in Pharmaceutical Preparations by Adsorptive Stripping Voltammetry Using Screen Printed Electrodes. SENSORS 2008; 8:4201-4212. [PMID: 27879931 PMCID: PMC3697170 DOI: 10.3390/s8074201] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2008] [Revised: 06/25/2008] [Accepted: 07/10/2008] [Indexed: 11/16/2022]
Abstract
This paper describes a procedure that has been optimized for the determination of lamotrigine by Differential Pulse Adsorptive Stripping Voltammetry (DPAdSV) using carbon screen-printed electrodes (CSPE) and mercury coated carbon screen-printed electrodes. Selection of the experimental parameters was made using experimental design methodology. The detection limit found was 5.0 x 10-6 M and 2.0 x 10-6 M for the non modified and Hg modified CSPE, respectively. In terms of reproducibility, the precision of the above mentioned methods was calculated in %RSD values at 9.83% for CSPE and 2.73% for Hg-CSPE. The Hg-coated CSPEs developed in this work were successfully applied in the determination of lamotrigine in pharmaceutical preparations.
Collapse
Affiliation(s)
- Olga Domínguez-Renedo
- Departamento de Química, Área de Química Analítica, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, E-09001 Burgos, Spain.
| | - M Encarnación Burgoa Calvo
- Departamento de Química, Área de Química Analítica, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, E-09001 Burgos, Spain.
| | - M Julia Arcos-Martínez
- Departamento de Química, Área de Química Analítica, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos s/n, E-09001 Burgos, Spain.
| |
Collapse
|
11
|
Sripalakit P, Srichaiya A, Kandee R. Development and Validation of a HPLC Method for a Dissolution Test of Lamotrigine Tablets and its Application to Drug Quality Control Studies. J LIQ CHROMATOGR R T 2008. [DOI: 10.1080/10826070801893615] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Pattana Sripalakit
- a Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences , Naresuan University , Phitsanulok, Thailand
- b Bioequivalent Test Center, Faculty of Pharmaceutical Sciences , Naresuan University , Phitsanulok, Thailand
| | - Arunee Srichaiya
- b Bioequivalent Test Center, Faculty of Pharmaceutical Sciences , Naresuan University , Phitsanulok, Thailand
| | - Ratchanok Kandee
- b Bioequivalent Test Center, Faculty of Pharmaceutical Sciences , Naresuan University , Phitsanulok, Thailand
| |
Collapse
|
12
|
Budakova L, Brozmanova H, Grundmann M, Fischer J. Simultaneous determination of antiepileptic drugs and their two active metabolites by HPLC. J Sep Sci 2007; 31:1-8. [DOI: 10.1002/jssc.200700253] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
13
|
Emami J, Ghassami N, Ahmadi F. Development and validation of a new HPLC method for determination of lamotrigine and related compounds in tablet formulations. J Pharm Biomed Anal 2006; 40:999-1005. [PMID: 16176866 DOI: 10.1016/j.jpba.2005.07.045] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2004] [Revised: 07/11/2005] [Accepted: 07/30/2005] [Indexed: 11/16/2022]
Abstract
A simple HPLC method was developed and validated for quantitation of lamotrigine and its related substances which may coexist in solid pharmaceutical dosage forms. The HPLC separation was achieved on a C18 mu-Bondapack column (250 mm x 4.6 mm) using a mobile phase of acetonitrile-monobasic potassium phosphate solution (35:65, v/v) containing orthophosphoric acid to adjust pH to 3.5 at a flow rate of 1.5 ml/min. The UV detector was operated at 210 nm, and column temperature was adjusted at 40 degrees C. The method was validated for specificity, linearity, precision, accuracy, robustness and limit of quantitation. The degree of linearity of the calibration curves, the percent recoveries of lamotrigine and related substances, the limit of detection and quantitation, for the HPLC method were determined. The method was found to be simple, specific, precise, accurate, and reproducible. The method was applied for the quality control of commercial lamotrigine tablets to quantify the drug and its related substances and to check the formulation content uniformity.
Collapse
Affiliation(s)
- J Emami
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences/Isfahan Pharmaceutical Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran.
| | | | | |
Collapse
|
14
|
Patil KM, Bodhankar SL. High-performance thin-layer chromatographic determination of lamotrigine in serum. J Chromatogr B Analyt Technol Biomed Life Sci 2005; 823:152-7. [PMID: 16005693 DOI: 10.1016/j.jchromb.2005.06.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2005] [Revised: 06/06/2005] [Accepted: 06/09/2005] [Indexed: 11/23/2022]
Abstract
A simple and rapid high-performance thin-layer chromatographic (HPTLC) determination of lamotrigine (LTG) in serum is reported. The method involves extraction of the drug by ethyl acetate followed by separation on TLC silica plates using a mixture of toluene-acetone-ammonia (7:3:0.5), as eluting solvent. Densitometric analysis was carried out at 312 nm with lamotrigine being detected at Rf of 0.54. The analytical method has excellent linearity (r=0.998) in the range of 20-300 ng/spot. This assay range is adequate for analyzing human serum, as it corresponds to lamotrigine concentrations measured in human serum from epileptic patients. The method was validated for sensitivity, selectivity, extraction efficiency, accuracy and intra and inter-day reproducibility. The limit of detection and limit of quantification were found to be 6.4 and 10.2 ng, respectively. Good accuracy is reported in the range of 92.06-97.12% and high precision with %CV in range of 0.53-2.59. The method was applied for determination of serum lamotrigine levels in epileptic patients and in pharmacokinetic study of lamotrigine administered orally to rabbits.
Collapse
Affiliation(s)
- Kuldeep M Patil
- Department of Pharmacology, Bharati Vidyapeeth Deemed University, Poona College of Pharmacy, Pune 411038, Maharashtra, India
| | | |
Collapse
|
15
|
Optimization of the experimental parameters in the determination of lamotrigine by adsorptive stripping voltammetry. Anal Chim Acta 2005. [DOI: 10.1016/j.aca.2005.06.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
16
|
Patil KM, Bodhankar SL. Simultaneous determination of lamotrigine, phenobarbitone, carbamazepine and phenytoin in human serum by high-performance liquid chromatography. J Pharm Biomed Anal 2005; 39:181-6. [PMID: 15927430 DOI: 10.1016/j.jpba.2005.02.045] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2004] [Revised: 01/30/2005] [Accepted: 02/25/2005] [Indexed: 11/16/2022]
Abstract
A simple reversed-phase high-performance liquid chromatography (HPLC) method was developed for the simultaneous estimation of the antiepileptic drugs (AEDs) lamotrigine (LTG), phenobarbitone (PB), carbamazepine (CBZ) and phenytoin (PHT) in human serum. The procedure involves extraction of the AEDs by mixing 200 microl of serum with 200mul of acetonitrile containing 10 microg/ml of pentobarbitone as internal standard (IS). After centrifugation, 10 microl of the supernatant was injected onto a NOVA PAK C-18 column (250 mm x 4.6mm, 5 microm Hypersil ODS) and eluted with a mobile phase consisting of phosphate buffer (10 mM)-methanol-acetonitrile-acetone in the ratio of 55:22:12:11 (v/v) adjusted to pH 7.0. A UV detector set at 210 nm was employed for detection. The AEDs were well resolved from the human serum constituents and the internal standard. The method can quantify LTG, PB, CBZ, and PHT at concentrations as low as 0.2 microg/ml. The method was quantitatively evaluated in terms of linearity, accuracy, precision, recovery, selectivity, sensitivity, and specificity. The method is simple, convenient, and suitable for the analysis of AEDs from human serum.
Collapse
Affiliation(s)
- K M Patil
- Department of Pharmacology, Bharati Vidyapeeth Deemed University, Poona College of Pharmacy, Pune, Maharashtra, India
| | | |
Collapse
|
17
|
Pucci V, Bugamelli F, Baccini C, Raggi MA. Analysis of lamotrigine and its metabolites in human plasma and urine by micellar electrokinetic capillary chromatography. Electrophoresis 2005; 26:935-942. [PMID: 15669009 DOI: 10.1002/elps.200410208] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A reliable micellar electrokinetic capillary chromatographic method was developed and validated for the determination of lamotrigine and its metabolites in human plasma and urine. The variation of different parameters, such as pH of the background electrolyte (BGE) and Sodium dodecyl sulfate (SDS) concentration, were evaluated in order to find optimal conditions. Best separation of the analytes was achieved using a BGE composed of 10 mM borate and 50 mM SDS, pH 9.5; melatonin was selected as the internal standard. Isolation of lamotrigine and its metabolites from plasma and urine was accomplished with an original solid-phase extraction procedure using hydrophilic-lypophilic balance cartridges. Good absolute recovery data and satisfactory precision values were obtained. The calibration plots for lamotrigine and its metabolites were linear over the 1-20 microg/mL concentration range. Sensitivity was satisfactory; the limits of detection and quantitation of lamotrigine were 500 ng/mL and 1 microg/mL, respectively. The application of the method to real plasma samples from epileptic patients under therapy with lamotrigine gave good results in terms of accuracy and selectivity, and in agreement with those obtained with an high-performance liquid chromatography (HPLC) method.
Collapse
Affiliation(s)
- Vincenzo Pucci
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | | | | | | |
Collapse
|
18
|
Pucci V, Raggi MA. Analysis of antiepileptic drugs in biological fluids by means of electrokinetic chromatography. Electrophoresis 2005; 26:767-782. [PMID: 15714570 DOI: 10.1002/elps.200410207] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
An overview of the electrokinetic chromatographic methods for the analysis of antiepileptic drug levels in biological samples is presented. In particular, micellar electrokinetic capillary chromatography is a very suitable method for the determination of these drugs, because it allows a rapid, selective, and accurate analysis. In addition to the electrokinetic chromatographic studies on the determination of antiepileptic drugs, some information regarding sample pretreatment will also be reported: this is a critical step when the analysis of biological fluids is concerned. The electrokinetic chromatographic methods for the determination of recent antiepileptic drugs (e.g., lamotrigine, levetiracetam) and classical anticonvulsants (e.g., carbamazepine, phenytoin, ethosuximide, valproic acid) will be discussed in depth, and their pharmacological profiles will be briefly described as well.
Collapse
Affiliation(s)
- Vincenzo Pucci
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | | |
Collapse
|
19
|
Chollet DF. Determination of antiepileptic drugs in biological material. J Chromatogr B Analyt Technol Biomed Life Sci 2002; 767:191-233. [PMID: 11885851 DOI: 10.1016/s0378-4347(01)00502-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Current analytical methodologies applied to the determination of antiepileptic drugs in biological material are reviewed. The role of chromatographic techniques is emphasized. Special attention is focused on new chemical entities as well as current trends such as high-speed liquid chromatographic techniques, hyphenated techniques and electrochromatography techniques. A review with 542 references.
Collapse
Affiliation(s)
- Daniel F Chollet
- Covance Central Laboratory Services SA, Drug Monitoring Department, Meyrin/Geneva, Switzerland.
| |
Collapse
|
20
|
Castel-Branco MM, Almeida AM, Falcão AC, Macedo TA, Caramona MM, Lopez FG. Lamotrigine analysis in blood and brain by high-performance liquid chromatography. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 2001; 755:119-27. [PMID: 11393695 DOI: 10.1016/s0378-4347(01)00044-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A reversed-phase high-performance liquid chromatography assay was developed and validated to determine plasma and brain lamotrigine concentrations allowing pharmacokinetic-pharmacodynamic studies of this new antiepileptic drug in patients and laboratory animals. Lamotrigine and its internal standard were extracted, under alkaline conditions, from plasma and brain homogenate, into ethyl acetate; brain proteins were previously precipitated with trichloroacetic acid. The method was linear between 0.1 and 15.0 mg/l for plasma, with a detection limit of 0.008 mg/l, and between 0.1 and 5.0 mg/l for brain homogenate, with a detection limit of 0.023 mg/l. The method proved to be simple, useful and appropriate, not only for clinical and experimental research, but also for routine monitoring of lamotrigine concentrations in patients.
Collapse
Affiliation(s)
- M M Castel-Branco
- Laboratory of Pharmacology, Faculty of Pharmacy, Coimbra University, Portugal
| | | | | | | | | | | |
Collapse
|