title: A validated liquid chromatographic-tandem mass spectroscopy method for the quantification of abiraterone acetate and abiraterone in human plasma.
abstract: A sensitive and selective LC-MS/MS method has been developed and validated for the quantification of abiraterone acetate and its metabolite, abiraterone (an androgen biosynthesis inhibitor) in human plasma. Analytes were extracted by SPE with cation mixed-mode polymer cartridges. Chromatography was performed on a Luna C5 5 microm, 50 mm x 2.1 mm i.d. column, using a mobile phase of 2% propan-2-ol in acetonitrile and 10mM ammonium acetate. The assay was linear from 5 to 500 nM (r(2)=0.998). The intra- and inter-day coefficients of variation were <13.9% for both analytes. This method will be applied to a clinical trial investigating the pharmacokinetics of abiraterone acetate and abiraterone in patients with prostate cancer.
authors.affiliation: Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, UK.
authors.forename: Vanessa
authors.initials: V
authors.lastname: Martins
authors.forename: Yasmin
authors.initials: Y
authors.lastname: Asad
authors.forename: Nicola
authors.initials: N
authors.lastname: Wilsher
authors.forename: Florence
authors.initials: F
authors.lastname: Raynaud
mesh_terms: D000736:Androstenes; D000737:Androstenols / Q000097:blood*; D002853:Chromatography, Liquid / Q000379:methods*; D004355:Drug Stability; D006801:Humans; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D000736:Androstenes; D000737:Androstenols; C089740:abiraterone