Disposition and Metabolism of Setipiprant, a Selective Oral CRTH2 Antagonist, in Humans

Background Setipiprant, a tetrahydropyridoindole derivative, is a CRTH2 (chemoattractant receptor-homologous molecule expressed on T-helper [Th]-2 cells) antagonist that has the potential to be effective in the treatment of patients with diseases with an allergic etiology, such as allergic rhinitis and asthma.