title: Simultaneous determination of SU5416 and its phase I and phase II metabolites in rat and dog plasma by LC/MS/MS.
abstract: SU5416, Z-3-[(2,4-dimethylpyrrol-5-yl)methylidenyl]-2-indolinone, is a cytostatic substance in development as an anti-angiogenic agent. SU5416 has several phase I and phase II metabolites including SU9838, SU6595, SU6689, 5'-hydroxy glucuronide of SU5416 and 5'-acyl glucuronide of SU5416. In order to support the preclinical studies, a liquid chromatography/mass spectrometry/mass spectrometry (LC/MS/MS) method for simultaneous determination of SU5416 and its metabolites in rat and dog plasma was developed. This method is fast, simple, sensitive (LOQ=2.0 ng/ml), reproducible and has a wide linear range (2.0-5000 ng/ml for SU5416, 2.0-2000 ng/ml for SU6689 and 2.0-1000 ng/ml for SU9838 and SU6595). This method was applied to rat and dog plasma samples obtained from pharmacokinetic and toxicokinetic studies.
authors.affiliation: Department of Bioanalysis and Pharmacokinetics, SUGEN Inc., 230 E. Grand Avenue, South San Francisco, CA 94080, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Zhao
authors.forename: C Y
authors.initials: CY
authors.lastname: Yang
authors.forename: J
authors.initials: J
authors.lastname: Haznedar
authors.forename: L
authors.initials: L
authors.lastname: Antonian
mesh_terms: D020533:Angiogenesis Inhibitors / Q000097:blood* / Q000493:pharmacokinetics; D000818:Animals; D002853:Chromatography, Liquid / Q000379:methods*; D004285:Dogs; D007211:Indoles / Q000097:blood* / Q000493:pharmacokinetics; D013058:Mass Spectrometry / Q000379:methods*; D011758:Pyrroles / Q000097:blood* / Q000493:pharmacokinetics; D051381:Rats; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D020533:Angiogenesis Inhibitors; D007211:Indoles; D011758:Pyrroles; C116890:Semaxinib