ACT-373898 is a metabolite of the endothelin (ET) receptor type A (ETA) and ETBdual antagonist macitentan .1 1.Dingemanse, J., Sidharta, P.N., Maddrey, W.C., et al.Efficacy, safety and clinical pharmacology of macitentan in comparison to other endothelin receptor antagonists in the treatment of pulmonary arterial hypertensionExpert Opin. Drug Saf.13(3)391-405(2013)
ACT-672125 is a Potent CXCR3 Antagonist with Therapeutic Potential in Autoimmune Diseases. ACT-672125 showed good physicochemical properties and safety profile. In a proof-of-mechanism model of lung inflammation, ACT-672125 inhibited the recruitment of CXCR3 expressing T cells into the inflamed lung in a dose-dependent manner.
ACT-281959, a prodrug of ACT-246475, is a novel potent and selective P2Y12 Receptor Antagonist with a Wider Therapeutic Window in the Rat Than Clopidogrel. ACT-281959 showed antithrombotic efficacy after oral administration in the rat ferric chloride model. ACT-281959 entered clinical studies in healthy volunteers.