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Macitentan Group

University of Giessen · Phase 3 active Small molecule

Macitentan is a dual endothelin receptor antagonist that blocks both ETA and ETB receptors to reduce pulmonary vascular resistance and improve exercise capacity in pulmonary arterial hypertension.

Macitentan is a dual endothelin receptor antagonist that blocks both ETA and ETB receptors to reduce pulmonary vascular resistance and improve exercise capacity in pulmonary arterial hypertension. Used for Pulmonary arterial hypertension (PAH).

At a glance

Generic nameMacitentan Group
Also known asJNJ-67896062
SponsorUniversity of Giessen
Drug classDual endothelin receptor antagonist
TargetETA and ETB receptors
ModalitySmall molecule
Therapeutic areaCardiovascular
PhasePhase 3

Mechanism of action

Endothelin is a potent vasoconstrictor involved in the pathophysiology of pulmonary arterial hypertension (PAH). By antagonizing both ETA and ETB receptors on vascular smooth muscle and endothelial cells, macitentan reduces vasoconstriction, inhibits cell proliferation, and promotes vasodilation. This dual antagonism provides more comprehensive blockade compared to selective ETA antagonists, leading to improved hemodynamics and clinical outcomes in PAH patients.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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