Development and validation of an assay for a novel ghrelin receptor inverse agonist PF-5190457 and its major hydroxy metabolite (PF-6870961) by LC-MS/MS in human plasma.

ABSTRACT: PF-5190457 is a selective and potent ghrelin receptor inverse agonist presently undergoing clinical trials to treat alcohol use disorder (AUD). We describe the development and validation of a selective and sensitive liquid chromatography-tandem mass spectrometry-based method for quantification of PF-5190457 and its recently discovered hydroxy metabolite PF-6870961 in human plasma. Analytes were extracted after simple protein precipitation using methanol (2.5 ng mL^-1 tacrine as an internal standard). A gradient liquid chromatography method was used to separate the analytes on an Acquity UPLC BEH C18 analytical column. The separation was achieved at a flow rate of 0.25 mL min^-1 and the total chromatographic runtime was 11.30 min. Positive electrospray ionization and mul

SUBMITTER: Adusumalli S 

PROVIDER: S-EPMC12434414 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature