title: Novel generic UPLC/MS/MS method for high throughput analysis applied to permeability assessment in early Drug Discovery.
abstract: A novel generic ultra performance liquid chromatography-tandem mass spectrometric (UPLC/MS/MS) method for the high throughput quantification of samples generated during permeability assessment (PAMPA) has been developed and validated. The novel UPLC/MS/MS methodology consists of two stages. Firstly, running a 1.5min isocratic method, compound-specific multiple reaction monitoring (MRM) methods were automatically prepared. In a second stage, samples were analyzed by a 1.5min generic gradient UPLC method on a BEH C18 column (50mmx2.1mm). Compounds were detected with a Waters Micromass Quattro Premier mass spectrometer operating in positive electrospray ionization using the compound-specific MRM methods. The linearity for the validation compounds (caffeine, propranolol, ampicillin, atenolol, griseofulvin and carbamazepine) typically ranges from 3.05nM to 12,500nM and the limits of detection for all generically developed methods are in the range between 0.61nM and 12nM in an aqueous buffer. The novel generic methodology was successfully introduced within early Drug Discovery and resulted in a four-fold increase of throughput as well as a significant increase in sensitivity compared to other in-house generic LC/MS methods.
authors.affiliation: Pharmaceutical Sciences, Johnson & Johnson Pharmaceutical Research & Development, A Division of Janssen Pharmaceutica N.V., Turnhoutseweg 30, 2340 Beerse, Belgium. jmensch@prdbe.jnj.com
authors.forename: Jurgen
authors.initials: J
authors.lastname: Mensch
authors.forename: Mark
authors.initials: M
authors.lastname: Noppe
authors.forename: Jef
authors.initials: J
authors.lastname: Adriaensen
authors.forename: Anouche
authors.initials: A
authors.lastname: Melis
authors.forename: Claire
authors.initials: C
authors.lastname: Mackie
authors.forename: Patrick
authors.initials: P
authors.lastname: Augustijns
authors.forename: Marcus E
authors.initials: ME
authors.lastname: Brewster
mesh_terms: D000667:Ampicillin / Q000737:chemistry / Q000493:pharmacokinetics; D001262:Atenolol / Q000737:chemistry / Q000493:pharmacokinetics; D002110:Caffeine / Q000737:chemistry / Q000493:pharmacokinetics; D002220:Carbamazepine / Q000737:chemistry / Q000493:pharmacokinetics; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006118:Griseofulvin / Q000737:chemistry / Q000493:pharmacokinetics; D010539:Permeability; D004364:Pharmaceutical Preparations / Q000737:chemistry* / Q000378:metabolism; D011433:Propranolol / Q000737:chemistry / Q000493:pharmacokinetics; D015203:Reproducibility of Results; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D004364:Pharmaceutical Preparations; D006118:Griseofulvin; D002220:Carbamazepine; D002110:Caffeine; D001262:Atenolol; D000667:Ampicillin; D011433:Propranolol