Rapid Assay for the Therapeutic Drug Monitoring of Edoxaban.
Biomolecules
; 12(4)2022 04 17.
Article
em En
| MEDLINE
| ID: mdl-35454179
ABSTRACT
Edoxaban is a direct oral anticoagulant (DOAC) that has been recently indicated for the treatment of pulmonary embolism (PE) in SARS-CoV-2 infections. Due to its pharmacokinetic variability and a narrow therapeutic index, the safe administration of the drug requires its therapeutic drug monitoring (TDM) in patients receiving the treatment. In this work, we present a label-free method for the TDM of edoxaban by surface enhanced Raman spectroscopy (SERS). The new method utilises the thiol chemistry of the drug to chemisorb its molecules onto a highly sensitive SERS substrate. This leads to the formation of efficient hotspots and a strong signal enhancement of the drug Raman bands, thus negating the need for a Raman reporter for its SERS quantification. The standard samples were run with a concentration range of 1.4 × 10-4 M to 10-12 M using a mobile phase comprising of methanol/acetonitrile (8515 v/v) at 291 nm followed by the good linearity of R2 = 0.997. The lowest limit of quantification (LOQ) by the SERS method was experimentally determined to be 10-12 M, whereas LOQ for HPLC-UV was 4.5 × 10-7 M, respectively. The new method was used directly and in a simple HPLC-SERS assembly to detect the drug in aqueous solutions and in spiked human blood plasma down to 1 pM. Therefore, the SERS method has strong potential for the rapid screening of the drug at pathology labs and points of care.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Nanopartículas Metálicas
/
Tratamento Farmacológico da COVID-19
Limite:
Humans
Idioma:
En
Revista:
Biomolecules
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Arábia Saudita