Sensitive LC–MS/MS method for quantitation of levodopa and carbidopa in plasma: application to a pharmacokinetic study

Author:

Ferreira Mônica S1,Davanço Marcelo G2,Pepi Giovanni T1,Previde Nathália1,Gabbai José J1,Martho Aline C1,Brandão Amanda HY1,Riccio Maria F1,de Campos Daniel R2,Meulman Jessica2,Noboli Ana C1,Júnior Pedro S1

Affiliation:

1. Centro Avançado de Estudos e Pesquisas – CAEP, P.O. Box: 245, Campinas, SP 13087-567, Brazil

2. Medley Farmacêutica Ltda. (Sanofi Generics), Industrial Development, Campinas, SP 13080-180, Brazil

Abstract

Aim: The combination of levodopa with carbidopa has been used for treatment of Parkinson's disease being an important therapy in dopamine level control in the brain. Both are very polar compounds becoming a challenge for analysis by LC–MS/MS.Materials & methods: In this work, it was developed and validated a sensitive bioanalytical method by UHPLC–MS/MS for simultaneous levodopa and carbidopa quantification in human plasma using a fast protein precipitation method. Moreover, the bioanalytical method was applied to a pharmacokinetic study in healthy volunteers. Results/Conclusion: The results demonstrated a sensitive and adequate method for application to pharmacokinetic/bioequivalence studies.

Publisher

Future Science Ltd

Subject

Medical Laboratory Technology,Clinical Biochemistry,General Pharmacology, Toxicology and Pharmaceutics,General Medicine,Analytical Chemistry

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