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J Pharm Biomed Anal ; 164: 509-513, 2019 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-30453157

RESUMO

USFDA has approved a novel Bruton tyrosine kinase (BTK) inhibitor acalabrutinib (ACA) for the treatment of mantle cell lymphoma in adults. ACA is more potent and selective with fewer side effects compared to other Bruton tyrosine kinase inhibitors. In the current work a highly sensitive, selective and specific LC-MS/MS method for the estimation of acalabrutinib (ACA) in rat plasma was developed. Agilent Eclipse Plus C 8 column (50 mm × 4.6 mm, µm), with gradient elution using 10 mM ammonium formate and acetonitrile as mobile phase at a flow rate of 0.6 mL/min was used for the chromatographic separation. The ion transitions were quantified in positive mode with MRM transition of 466.1→372.3 for ACA and 236.8→194.0 for internal standard (IS). Solid phase extraction process was used as sample preparation approach. The method was validated according to USFDA bioanalytical guidelines. The method provided good linearity over the range of 0.2-199.14 ng/mL for ACA with short run time of 4 min. The method offers very high sensitivity (0.2 ng/mL) and was free from matrix interferences. The validated LC-MS/MS method was successfully applied for in vivo pharmacokinetic study in Sprague Dawley rats. The Cmax of ACA was found to be 25.56 ng/mL reaching at time of 0.5 h. The developed analytical method can also be utilized for bioequivalence studies and/or for pharmacokinetic studies in clinics.


Assuntos
Tirosina Quinase da Agamaglobulinemia/antagonistas & inibidores , Antineoplásicos/farmacocinética , Benzamidas/farmacocinética , Pirazinas/farmacocinética , Extração em Fase Sólida/métodos , Administração Oral , Animais , Antineoplásicos/administração & dosagem , Antineoplásicos/sangue , Benzamidas/administração & dosagem , Benzamidas/sangue , Cromatografia Líquida de Alta Pressão/instrumentação , Cromatografia Líquida de Alta Pressão/métodos , Estabilidade de Medicamentos , Masculino , Modelos Animais , Pirazinas/administração & dosagem , Pirazinas/sangue , Ratos , Ratos Sprague-Dawley , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Extração em Fase Sólida/instrumentação , Espectrometria de Massas em Tandem/instrumentação , Espectrometria de Massas em Tandem/métodos , Equivalência Terapêutica
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