CP-220629 is a potent inhibitor of PDE4, with the IC50 of 0.44 μM. CP-220629 is efficacious in the guinea pig aerosolized antigen induced airway obstruction assay (ED50 2.0 mg/kg)[1].
IC 50
PDE4: 0.44 μM (IC50)
References
[1] A J Duplantier, et al. 7-Oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridines as novel inhibitors of human eosinophil phosphodiesterase. J Med Chem. 1998 Jun 18;41(13):2268-77. DOI:10.1021/jm9800090
