Development of an HPLC method for the determination of fampridine (dalfampridine) in human plasma by fluorimetric derivatization and application to a prototype pharmacokinetic study

dc.authorid0000-0003-3666-8187
dc.authorid0000-0002-5840-7386
dc.authorid0000-0001-8455-1173
dc.contributor.authorCeylan, Burhan
dc.contributor.authorÖnal, Cem
dc.contributor.authorÖnal, Armağan
dc.date.accessioned2025-06-26T07:58:42Z
dc.date.available2025-06-26T07:58:42Z
dc.date.issued2025
dc.departmentFakülteler, Eczacılık Fakültesi, Eczacılık Meslek Bilimleri Bölümü, Analitik Kimya Ana Bilim Dalı
dc.description.abstractFampridine (dalfampridine) is used to improve walking in people who have multiple sclerosis. In this study, a new, fast and sensitive HPLC method with fluorometric detection was developed for the determination of fampridine in human plasma and applied to a pharmacokinetic study. Fampridine was precolumn derivatized with 7-chloro-4-nitrobenzofurazan (NBD-Cl) and the fluorescent derivative was separated on a C18 (150 × 4.6 mm × 2.6 μm) analytical column at 30 ºC using a mobile phase composed of acetonitrile – 0.1% o-phosphoric acid in water (80:20, v/v) by isocratic elution with flow rate of 1.0 mL min–1 . The method was based on the measurement of the derivative using fluorescence detection (λex= 310 nm, λem = 365 nm). The retention time of fampridine is 4.10 ± 0.02 min. This currently developed method was validated according to EMA criteria by evaluating the specificity, linearity, precision, accuracy and robustness. The method was determined to be linear in a concentration range of 0.01–20 ng mL–1 with the correlation coefficient of 0.9996. LOD and LOQ were found to be 0.003 and 0.01 ng mL–1 , respectively. Intraday and interday RSD values were less than 2.45%. The plasma concentration-time profile and pharmacokinetic parameters such as AUC0–t, AUC0–∞, Cmax, tmax, t1/2, were calculated according to the assays. The presented method can certainly be used for bioequivalence and bioavailability investigations and routine analysis of the drug in plasma.
dc.identifier.citationCeylan, B., Önal, C., & Önal, A. (2025). Development of an HPLC method for the determination of fampridine (dalfampridine) in human plasma by fluorimetric derivatization and application to a prototype pharmacokinetic study. Revue Roumaine de Chimie, 70(3-4), pp. 215-222. https://doi.org/10.33224/rrch.2025.70.3-4.09
dc.identifier.doi10.33224/rrch.2025.70.3-4.09
dc.identifier.endpage222
dc.identifier.issn0035-3930
dc.identifier.issue3-4
dc.identifier.scopus2-s2.0-105007661632
dc.identifier.scopusqualityQ4
dc.identifier.startpage215
dc.identifier.urihttps://doi.org/10.33224/rrch.2025.70.3-4.09
dc.identifier.urihttps://hdl.handle.net/20.500.13055/1021
dc.identifier.volume70
dc.identifier.wosWOS:001507319500009
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.indekslendigikaynak.otherSCI-E - Science Citation Index Expanded
dc.institutionauthorÖnal, Cem
dc.institutionauthorid0000-0002-5840-7386
dc.language.isoen
dc.publisherEditions de l'Academie Republique Populaire
dc.relation.ispartofRevue Roumaine de Chimie
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectFampridine
dc.subjectHPLC-FL
dc.subjectPre-Column Derivatization
dc.subjectPharmacokinetic
dc.subjectNBD-Cl
dc.titleDevelopment of an HPLC method for the determination of fampridine (dalfampridine) in human plasma by fluorimetric derivatization and application to a prototype pharmacokinetic study
dc.typeArticle
dspace.entity.typePublication

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