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The patent EP4065119 was granted to Actelion Pharmaceuticals on Sep 4, 2024. The application was originally filed on Nov 27, 2020 under application number EP20820054A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
Initial combination therapy of macitentan, tadalafil, and selexipag for treating pulmonary arterial hypertension (PAH) with a unique dosing regimen. The therapy combines the endothelin receptor antagonist macitentan, phosphodiesterase type 5 inhibitor tadalafil, and prostacyclin receptor agonist selexipag, with macitentan and tadalafil initiated on day 1 and selexipag on day 15 ± 3 days. This regimen achieves significant hemodynamic and functional improvements in newly diagnosed PAH patients, with a notable reduction in pulmonary vascular resistance and improvement in right heart function.

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