Last reviewed · How we verify
ERA as specific PAH treatment — Competitive Intelligence Brief
phase 3
Endothelin receptor antagonist
Endothelin receptor (ETA/ETB)
Cardiovascular
Small molecule
Live · refreshed every 30 min
Target snapshot
ERA as specific PAH treatment (ERA as specific PAH treatment) — Eli Lilly and Company. Endothelin receptor antagonists (ERAs) block endothelin-1 signaling in pulmonary vasculature to reduce vasoconstriction and improve hemodynamics in pulmonary arterial hypertension.
Comparator set (6 drugs)
| Drug | Generic | Sponsor | Phase | Class | Target | Approval / PDUFA |
|---|---|---|---|---|---|---|
| ERA as specific PAH treatment TARGET | ERA as specific PAH treatment | Eli Lilly and Company | phase 3 | Endothelin receptor antagonist | Endothelin receptor (ETA/ETB) | |
| Tryvio | APROCITENTAN | Idorsia | marketed | Endothelin Receptor Antagonist [EPC] | 2025-01-01 | |
| SPARSENTAN | SPARSENTAN | marketed | Endothelin Receptor Antagonist [EPC] | 2023-01-01 | ||
| Opsumit | MACITENTAN | AstraZeneca | marketed | Endothelin Receptor Antagonist [EPC] | Endothelin-1 receptor | 2013-01-01 |
| Letairis | AMBRISENTAN | Gilead Sciences | marketed | Endothelin Receptor Antagonist [EPC] | Endothelin-1 receptor | 2007-01-01 |
| Tracleer | BOSENTAN | AstraZeneca | marketed | Endothelin Receptor Antagonist | Endothelin-1 receptor | 2001-01-01 |
| Ambrisentan plus Spironolactone | Ambrisentan plus Spironolactone | Brigham and Women's Hospital | marketed | Endothelin receptor antagonist + Mineralocorticoid receptor antagonist combination | Endothelin-1 receptor (ETA/ETB) + Mineralocorticoid receptor |
Recent regulatory actions (last 90 days)
- — Tracleer · FDA · approved · US · AstraZeneca
Upcoming PDUFA dates (next 180 days)
Patent timeline (forward window)
- — Tracleer · 7959945 · Formulation · US
Sponsor landscape (Endothelin receptor antagonist class)
- AbbVie (prior sponsor, Abbott) · 2 drugs in this class
- Actelion · 2 drugs in this class
- Bayer · 1 drug in this class
- Dr Sudarshan Rajagopal · 1 drug in this class
- Eli Lilly and Company · 1 drug in this class
- Elpen Pharmaceutical Co. Inc. · 1 drug in this class
- National Heart, Lung, and Blood Institute (NHLBI) · 1 drug in this class
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Cite this brief
Drug Landscape (2026). ERA as specific PAH treatment — Competitive Intelligence Brief. https://druglandscape.com/ci/era-as-specific-pah-treatment. Accessed 2026-05-17.
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