Macitentan (ACT-064992; actelion-1) is an orally active, potent endothelin (ET) receptor antagonist that blocks ET-1-induced cellular calicum response (IC50 in nM = 0.9/HPASMC, 0.8/RASMC, 1.84/m3T3), as well as ET-1-induced contractions of rat aortic rings (ETA) and S6c-induced rat tracheal rings (ETB) ex vivo (pA2 = 7.6 and 5.9, respectively). Macitentan displays therapeutic efficacy in rat hypertension models in vivo (0.3-100 mg/kg p.o. via single or daily dosing).
Orally active, potent endothelin (ET) receptor antagonist with therapeutic efficacy against hypertension in vivo.
Human cytomegalovirus (HCMV) infection is an important cause of morbidity and mortality in immunocompromised patients and a major etiological factor for congenital birth defects in newborns. Ganciclovir and its pro-drug valganciclovir are the preferred drugs in use today for prophylaxis
Pharmacology research & perspectives, 8(4), e00619-e00619 (2020-07-03)
The dual endothelin receptor antagonist macitentan was approved in 2013 for the treatment of pulmonary arterial hypertension. Macitentan is an inducer of cytochrome P450 expression in vivo in animal species but not in man. In rat and dog, changes in
Pulmonary arterial hypertension is a severe respiratory disease characterized by pulmonary artery remodeling. RV dysfunction and dysregulated circulating metabolomics are associated with adverse outcomes in pulmonary arterial hypertension. We investigated effects of tadalafil and macitentan alone or in combination on
Journal of proteome research, 19(8), 3302-3314 (2020-07-10)
Chronic mountain sickness (CMS) is a high altitude complication with high rates of morbidity and mortality. CMS is characterized by high-altitude polycythemia (HAPC) and high-altitude pulmonary hypertension (HAPH). In this study, macitentan, a dual endothelin receptor antagonist, was used to
Extracellular vesicles (EVs) carrying tumor cell-derived programmed death-ligand 1 (PD-L1) interact with programmed death 1 (PD-1)-producing T cells, thus significantly lowering a patient's response to immune checkpoint blockade drugs. No drug that reinvigorates CD8+ T cells by suppressing EV PD-L1
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