Biochem/physiol Actions
Orally active, potent and selective phosphodiesterase 4 (PDE4) inhibitor in vitro and in vivo.
Apremilast (CC-10004) is an orally active, potent and selective phosphodiesterase 4 (PDE4) inhibitor (IC50 = 20/49/50/30 nM with recombinant human PDE4A4/B2/C2/D3 and 1 μM cAMP; no significant PDE1/2/3/5/7/8/9/10/11 inhibition at 10 μM). Apremilast effectively inhibits LPS-induced cytokine and chemokine protein expression from purified human PBMCs (TNFα/IFNγ/IL12 IC50 = 13/110/120 nM, IP10/MIG/MIP1α IC50 = 10/28/40 nM) in vitro and exhibits therapeutic efficacy in a psoriasis mouse model in vivo (2.5/mg/kg b.i.d. p.o.)