PD-159020 is a non-selective ETA/ETB antagonist, with IC50s of 30 and 50 nM for hETA and hETB, respectively.
PD-159020 demonstrates excellent inhibition of arachidonic acid release, AAR-B, with an IC50 of 0.23 μM.
[1]. Amy Mbunker, et al. 1,3-diaryl-2-carboxyindoles as potent non-peptide endothelin antagonists. Bioorganic & Medicinal Chemistry Letters. Volume 6, Issue 9, 7 May 1996, Pages 1061-1066
















