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Hamad AA. Utility of a fluorescent probing strategy for designing a distinctive chemically mutagenized reaction for the determination of an antiepileptic agent; topiramate. TALANTA OPEN 2023. [DOI: 10.1016/j.talo.2022.100179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Hamad AA, Batubara AS. Planning and projecting of a green isoindole–based fluoro-probe for feasible tagging and tracking of topiramate, a non-fluorescent drug in bulk powder and prescribed commercial products. TALANTA OPEN 2023. [DOI: 10.1016/j.talo.2023.100205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023] Open
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Khalifa ME, Ali TA, Abdallah AB. Molecularly Imprinted Polymer Based GCE for Ultra-sensitive Voltammetric and Potentiometric Bio Sensing of Topiramate. ANAL SCI 2021; 37:955-962. [PMID: 33191368 DOI: 10.2116/analsci.20p313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Topiramate (TOP) drug is classified as one of the most commonly used human drugs for anticonvulsants and antiepileptic, so its rapid detection and monitoring is of great importance. In this work, new potentiometric (MIP/PVC/GCE) and voltammetric (MIP/GO/GCE) sensors for the selective and sensitive determination of TOP were fabricated based on the molecularly imprinted polymer (MIP) approach. The MIP was synthesized by the polymerization of acrylamide and methacrylic acid as monomers, in the presence of TOP as a template and ethylene glycol dimethacrylate as a cross-linker. The obtained products were characterized by FT-IR, SEM, BET, and EDX. The MIP was embedded in a plasticized polyvinyl chloride membrane and used as a potentiometric sensor for sensing TOP. Alternatively, the synthesized MIP and graphene oxide (GO) were deposited layer-by-layer on the surface of GCE to construct a voltammetric sensor for studying the electrochemical behavior of the drug. Under optimized conditions, both electrochemical sensors showed excellent linear relationships between the concentration of TOP and the response signals of MIP/GO/GCE or MIP/PVC/GCE sensors in the 2.7 × 10-10 to 4.9 × 10-3 M and 1 × 10-9 to 3.4 × 10-3 M ranges, respectively. Also, both sensors have good reproducibility and high stability for up to 15 days for a voltammetric sensor and 28 days for a potentiometric sensor. The utility of these sensors was checked for TOP analysis in different real samples with good recovery (92.8 - 99%).
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Affiliation(s)
- Magdi E Khalifa
- Department of Chemistry, Faculty of Science, Mansoura University
| | | | - A B Abdallah
- Department of Chemistry, Faculty of Science, Mansoura University
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Cifuentes C, Mennickent S, De Diego M. Quantitative Determination of Topiramate in Human Serum and Umbilical Cord Blood. CURR PHARM ANAL 2019. [DOI: 10.2174/1573412914666180502124419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Topiramate (TPM), an anticonvulsant drug, was determined in human serum
and in umbilical cord blood. TPM can produce severe damage to the fetus (baby into mother´s uterus),
and it is not always possible that epileptic women change their drug during pregnancy, because some
antiepileptic drugs are not effective on some people. Using pregnant-mother serum blood, we can estimate
drug levels in fetus serum, and by umbilical cord blood, is possible estimate drug levels in serum
babies, without the ethic aspects to withdrawal blood of them.
Methods:
Quantitation was achieved by LC/DAD, using liquid-liquid extraction for isolation of TPM
from both biological fluids, using dichloromethane as extraction solvent, and dabsyl chloride as
derivatizing agent.
Results:
The method was linear over the concentration range of 5.0 to 20.0 µg/mL for TPM in human
serum, and between 1.6-50.0 µg/mL for TPM in umbilical cord blood (r=0.999 and r= 0.998, respectively).
RSD, for intra-assay study, was between 0.64%- 1.22% (n=3), and between 0.57% -1.86%
(n=9) for inter-assay, when the biological fluid was human serum, and between 0.33% - 3.44%, and
3.38% -3.73%, respectively, when the matrix was umbilical cord blood. LOD was 0.40 µg/mL and 0.39
μg/mL for TPM in human serum and in umbilical cord, respectively, whereas LOQ was 1.20 µg/mL
and 1.18 μg/mL, in each biological fluid. Recovery percentage for the accuracy study was between
94.0% and 109.8% (RSD ≤0.191).
Conclusion:
The method is precise, accurate, reproducible and selective for level analysis of TPM in
both matrices.
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Affiliation(s)
- Cristina Cifuentes
- Department of Pharmacy, Faculty of Pharmacy, University of Concepcion, P.O.Box 237, Concepcion, Chile
| | - Sigrid Mennickent
- Department of Pharmacy, Faculty of Pharmacy, University of Concepcion, P.O.Box 237, Concepcion, Chile
| | - Marta De Diego
- Department of Pharmacy, Faculty of Pharmacy, University of Concepcion, P.O.Box 237, Concepcion, Chile
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Ishikawa AA, da Silva RM, Santos MSF, da Costa ET, Sakamoto AC, Carrilho E, de Gaitani CM, Garcia CD. Determination of topiramate by capillary electrophoresis with capacitively-coupled contactless conductivity detection: A powerful tool for therapeutic monitoring in epileptic patients. Electrophoresis 2018; 39:2598-2604. [DOI: 10.1002/elps.201800046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/27/2018] [Accepted: 03/17/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Aline Akemi Ishikawa
- Department of Chemistry; Clemson University; Clemson SC USA
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto; Universidade de São Paulo; Ribeirão Preto SP Brazil
- Instituto de Quimica de São Carlos; Universidade de São Paulo; São Carlos SP Brazil
| | - Rodrigo Moreira da Silva
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto; Universidade de São Paulo; Ribeirão Preto SP Brazil
| | - Mauro Sérgio Ferreira Santos
- Department of Chemistry; Clemson University; Clemson SC USA
- Instituto de Química; Universidade de São Paulo; São Paulo SP Brazil
| | | | - Americo Ceiki Sakamoto
- Faculdade de Medicina de Ribeirão Preto; Universidade de São Paulo; Ribeirão Preto SP Brazil
| | - Emanuel Carrilho
- Instituto de Quimica de São Carlos; Universidade de São Paulo; São Carlos SP Brazil
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica - INCTBio; Campinas SP Brazil
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Ibrahim FA, El-Yazbi AF, Wagih MM, Barary MA. Sensitive inexpensive spectrophotometric and spectrofluorimetric analysis of ezogabine, levetiracetam and topiramate in tablet formulations using Hantzsch condensation reaction. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 184:47-60. [PMID: 28482206 DOI: 10.1016/j.saa.2017.04.078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/27/2017] [Accepted: 04/26/2017] [Indexed: 06/07/2023]
Abstract
Two highly sensitive, simple and selective spectrophotometric and spectrofluorimetric assays have been investigated for the analysis of ezogabine, levetiracetam and topiramate in their pure and in pharmaceutical dosage forms. The suggested methods depend on the condensation of the primary amino-groups in the three drugs with acetylacetone and formaldehyde according to Hantzsch reaction yielding highly fluorescent yellow colored dihydropyridine derivatives. The reaction products of ezogabine, levetiracetam and topiramate were measured spectrophotometrically at 418, 390 and 380nm or spectrofluorimetrically at λem/ex of 495/425nm, 490/415nm and 488/410nm, respectively. Various experimental conditions have been carefully studied to maximize the reaction yield. At the optimum reaction conditions, the calibration curves were rectilinear over the concentration ranges of 8-25, 60-180 and 80-200μg/mL spectrophotometrically and 0.02-0.2, 0.2-1.2 and 0.2-1.5μg/mL spectrofluorimetrically for ezogabine, levetiracetam and topiramate, respectively with good correlation coefficients. The suggested methods were applied successfully for the analysis of ezogabine, levetiracetam and topiramate in their commercial tablets with high percentage recoveries and negligible interference from various excipients in pharmaceutical dosage forms. The results were statistically analyzed and showed the absence of any significant difference between both developed and published methods. The procedures were validated and evaluated by the ICH guidelines revealing good reproducibility and accuracy. Therefore, the two proposed methods may be considered of high interest for practical and reliable analysis of ezogabine, levetiracetam and topiramate in pharmaceutical dosage forms.
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Affiliation(s)
- F A Ibrahim
- Department of Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - A F El-Yazbi
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 2521, Egypt.
| | - M M Wagih
- Forensic Medicine Authority, Egyptian Ministry of Justice, El Sayeda Zeinab, Zeinhom 11628, Cairo, Egypt
| | - M A Barary
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 2521, Egypt
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Chromatographic determination of zonisamide, topiramate and sulpiride in plasma by a fluorescent 'turn-on' chemosensor. Bioanalysis 2017; 9:1049-1064. [PMID: 28737428 DOI: 10.4155/bio-2017-0090] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
AIM Antiepileptics (AEDs) and antipsychotics are often coprescribed. Interactions between these drugs may affect both efficacy and toxicity. Therefore, drug monitoring is necessary for appropriate dosage adjustments. MATERIALS & METHODS Specific 'turn-on' chemosensor, 4-chloro-7-nitrobenzofurazan is used for selective and sensitive determination of two AEDs: zonisamide (ZON) and topiramate (TOP) with the antipsychotic sulpiride (SUL) in epileptic patients' plasma followed by reversed-phase-HPLC separation without any interference. RESULTS Linear behavior was observed in the range of 0.1-3 μg/ml and 0.01-0.5 μg/ml for the AEDs and SUL, respectively, with LOD of 33, 46 and 4 ng/ml and LOQ of 86, 93 and 9 ng/ml for ZON, TOP and SUL, respectively. The proposed method was successfully applied for determination of different pharmacokinetic parameters of ZON and TOP, and for clinical monitoring of the three drugs in healthy volunteers following oral administration. CONCLUSION The developed method is suitable for the routine therapeutic drug monitoring of these drugs.
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Parmar VK, Parikh RH, Patel RJ. HPTLC Method for Estimation of Topiramate in Solubility Studies, Diffusion Studies, Plasma, Brain Homogenate and Pharmaceutical Formulation. J Chromatogr Sci 2016; 54:1105-14. [DOI: 10.1093/chromsci/bmw066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Indexed: 11/14/2022]
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Spectrofluorimetric Determination of Topiramate and Levetiracetam as Single Components in Tablet Formulations and in Human Plasma and Simultaneous Fourth Derivative Synchronous Fluorescence Determination of their Co-Adminstered Mixture in Human Plasma. J Fluoresc 2016; 26:1225-38. [DOI: 10.1007/s10895-016-1810-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 04/26/2016] [Indexed: 11/24/2022]
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Pinto EC, Dolzan MD, Cabral LM, Armstrong DW, de Sousa VP. Topiramate: A Review of Analytical Approaches for the Drug Substance, Its Impurities and Pharmaceutical Formulations. J Chromatogr Sci 2015; 54:280-90. [PMID: 26276847 DOI: 10.1093/chromsci/bmv120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Indexed: 11/14/2022]
Abstract
An important step during the development of high-performance liquid chromatography (HPLC) methods for quantitative analysis of drugs is choosing the appropriate detector. High sensitivity, reproducibility, stability, wide linear range, compatibility with gradient elution, non-destructive detection of the analyte and response unaffected by changes in the temperature/flow are some of the ideal characteristics of a universal HPLC detector. Topiramate is an anticonvulsant drug mainly used for the treatment of different types of seizures and prophylactic treatment of migraine. Different analytical approaches to quantify topiramate by HPLC have been described because of the lack of chromophoric moieties on its structure, such as derivatization with fluorescent moieties and UV-absorbing moieties, conductivity detection, evaporative light scattering detection, refractive index detection, chemiluminescent nitrogen detection and MS detection. Some methods for the determination of topiramate by capillary electrophoresis and gas chromatography have also been published. This systematic review provides a description of the main analytical methods presented in the literature to analyze topiramate in the drug substance and in pharmaceutical formulations. Each of these methods is briefly discussed, especially considering the detector used with HPLC. In addition, this article presents a review of the data available regarding topiramate stability, degradation products and impurities.
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Affiliation(s)
- Eduardo Costa Pinto
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, 373, CCS, Bss, sala 15, Rio de Janeiro 21941-902, Brazil Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - Maressa Danielli Dolzan
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA Department of Chemistry, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil
| | - Lucio Mendes Cabral
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, 373, CCS, Bss, sala 15, Rio de Janeiro 21941-902, Brazil
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - Valéria Pereira de Sousa
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, 373, CCS, Bss, sala 15, Rio de Janeiro 21941-902, Brazil
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Pinto EC, Dolzan MD, Cabral LM, Armstrong DW, de Sousa VP. Topiramate: a review of analytical approaches for biological matrices. Biomed Chromatogr 2015; 29:1461-72. [DOI: 10.1002/bmc.3466] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 02/25/2015] [Accepted: 02/26/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Eduardo Costa Pinto
- Department of Pharmaceutics, Faculty of Pharmacy; Federal University of Rio de Janeiro; Rio de Janeiro RJ Brazil
- Department of Chemistry and Biochemistry; University of Texas at Arlington; Arlington Texas USA
| | - Maressa Danielli Dolzan
- Department of Chemistry and Biochemistry; University of Texas at Arlington; Arlington Texas USA
- Department of Chemistry; Federal University of Santa Catarina; Florianopolis SC Brazil
| | - Lucio Mendes Cabral
- Department of Pharmaceutics, Faculty of Pharmacy; Federal University of Rio de Janeiro; Rio de Janeiro RJ Brazil
| | - Daniel W. Armstrong
- Department of Chemistry and Biochemistry; University of Texas at Arlington; Arlington Texas USA
| | - Valéria Pereira de Sousa
- Department of Pharmaceutics, Faculty of Pharmacy; Federal University of Rio de Janeiro; Rio de Janeiro RJ Brazil
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Martinc B, Roškar R, Grabnar I, Vovk T. Simultaneous determination of gabapentin, pregabalin, vigabatrin, and topiramate in plasma by HPLC with fluorescence detection. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 962:82-88. [DOI: 10.1016/j.jchromb.2014.05.030] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 05/06/2014] [Accepted: 05/16/2014] [Indexed: 10/25/2022]
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Locatelli M, Governatori L, Carlucci G, Genovese S, Mollica A, Epifano F. Recent application of analytical methods to phase I and phase II drugs development: a review. Biomed Chromatogr 2011; 26:283-300. [DOI: 10.1002/bmc.1674] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Revised: 06/13/2011] [Accepted: 06/15/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Marcello Locatelli
- Dipartimento di Scienze del Farmaco; Università degli Studi ‘G. D'Annunzio’ Chieti-Pescara; Via dei Vestini 31; 66100; Chieti (CH); Italy
| | - Luciana Governatori
- Dipartimento di Scienze del Farmaco; Università degli Studi ‘G. D'Annunzio’ Chieti-Pescara; Via dei Vestini 31; 66100; Chieti (CH); Italy
| | - Giuseppe Carlucci
- Dipartimento di Scienze del Farmaco; Università degli Studi ‘G. D'Annunzio’ Chieti-Pescara; Via dei Vestini 31; 66100; Chieti (CH); Italy
| | - Salvatore Genovese
- Dipartimento di Scienze del Farmaco; Università degli Studi ‘G. D'Annunzio’ Chieti-Pescara; Via dei Vestini 31; 66100; Chieti (CH); Italy
| | - Adriano Mollica
- Dipartimento di Scienze del Farmaco; Università degli Studi ‘G. D'Annunzio’ Chieti-Pescara; Via dei Vestini 31; 66100; Chieti (CH); Italy
| | - Francesco Epifano
- Dipartimento di Scienze del Farmaco; Università degli Studi ‘G. D'Annunzio’ Chieti-Pescara; Via dei Vestini 31; 66100; Chieti (CH); Italy
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