New York, USA, May 19, 2026 (GLOBE NEWSWIRE) -- Pulmonary Arterial Hypertension Clinical Trial Pipeline Gains Momentum: 50+ Companies Lead the Charge in Pioneering New Treatments | DelveInsight
The pulmonary arterial hypertension clinical trial analysis report delivers important insights into ongoing research of 55+ pipeline pulmonary arterial hypertension drugs, clinical strategies, upcoming therapeutics, and commercial analysis.
DelveInsight’s 'Pulmonary Arterial Hypertension Pipeline Insight 2026' report provides comprehensive global coverage of pipeline therapies for pulmonary arterial hypertension across various stages of clinical development. The report offers an in-depth analysis of key trends, emerging therapies, and competitive landscape dynamics, highlighting the strategies of major pharmaceutical companies to advance the pipeline and capitalize on future growth opportunities. In addition, it includes critical insights into clinical trial benchmarking, partnering and licensing activities, and regulatory pathways involving the FDA and EMA, enabling stakeholders to make informed decisions and optimize development strategies within the pulmonary arterial hypertension domain.
Pulmonary Arterial Hypertension Clinical Trial Analysis Summary
- DelveInsight’s pulmonary arterial hypertension pipeline report depicts a robust space with 50+ active players working to develop 55+ pipeline pulmonary arterial hypertension drugs.
- Key pulmonary arterial hypertension companies, such as Gossamer Bio, Chiesi, United Therapeutics Corporation, Pharmosa Biopharm, Liquidia, Respira Therapeutics, Pfizer, GSK, Biogen, Diagonal Therapeutics, Inhibikase Therapeutics, Cereno Scientific, Apollo Therapeutics, Regeneron Pharmaceuticals, AllRock Bio, AbbVie, Tenax Therapeutics, Beijing Continent Pharmaceutical Co, Ltd., Foresee Pharmaceuticals, Salubris Biotherapeutics, NS Pharma, Tectonic Therapeutics, and others, are evaluating new pulmonary arterial hypertension drugs to improve the treatment landscape.
- Promising pipeline pulmonary arterial hypertension therapies, such as Seralutinib, Ralinepag, L606 (liposomal treprostinil), RT-234, PF-07868489, HS235, ALG 801, DIAG-723, IKT-001, Valproic acid, APL-9796, REGN13335, ROC-101, TNX-103, F230, Mirivadelgat, JK07, NS-863, TX000045, and others, are in different phases of Pulmonary Arterial Hypertension clinical trials.
- Approximately 3+ pulmonary arterial hypertension drugs are in the late stages of development.
- Notable MoAs in pulmonary arterial hypertension clinical trials include PDGFRα/β, CSF1R, and c-KIT inhibitor, Prostacyclin receptor agonist, DP1, EP2, and IP receptor agonists, PDE5i vasodilator, Anti-BMP9, Activin inhibitors; Growth differentiation factor inhibitors, Type II-B activin receptor antagonists, Smad2/3 pathway-activating ligands, CVRL1 protein agonists, BMPRII agonists, and others.
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What is Pulmonary Arterial Hypertension?
Pulmonary arterial hypertension (PAH) is a rare, progressive disorder characterized by abnormally high blood pressure in the arteries that supply the lungs. In this condition, the pulmonary arteries become narrowed, thickened, or stiff, which increases resistance to blood flow and forces the right side of the heart to work harder to pump blood through the lungs. Over time, this strain can lead to right heart failure. Common symptoms include shortness of breath, fatigue, chest pain, dizziness, and swelling in the legs or ankles. PAH can be idiopathic or associated with other conditions such as connective tissue diseases, congenital heart defects, or chronic lung diseases. Although there is no cure, current treatments aim to manage symptoms, improve quality of life, and slow disease progression.

Find out more about pulmonary arterial hypertension drug development @ Pulmonary Arterial Hypertension Treatment
A snapshot of the Pipeline Pulmonary Arterial Hypertension Drugs mentioned in the report:
| Drugs | Company | Phase | MoA | RoA |
| Seralutinib | Gossamer Bio/Chiesi | III | PDGFRα/β, CSF1R, and c-KIT inhibitor | Oral Inhalation |
| Ralinepag | United Therapeutics Corporation | III | Prostacyclin receptor agonist | Oral |
| L606 (liposomal treprostinil) | Pharmosa Biopharm/Liquidia | III | DP1, EP2, and IP receptor agonists | Inhalation |
| RT-234 | Respira Therapeutics | II | PDE5i vasodilator | Inhalation |
| PF-07868489 | Pfizer | II | Anti-BMP9 | Subcutaneous |
| HS235 | GSK | I | Activin inhibitors; Growth differentiation factor inhibitors | Subcutaneous |
| ALG 801 | Biogen | I | Type II-B activin receptor antagonists; Smad2/3 pathway-activating ligands | Subcutaneous |
| DIAG-723 | Diagonal Therapeutics | Preclinical | CVRL1 protein agonists; BMPRII agonists | NA |
Learn more about the emerging pulmonary arterial hypertension therapies @ Pulmonary Arterial Hypertension Clinical Trials
As per Stuti Mahajan, consulting manager at DelveInsight, emerging clinical data support the growing role of novel mechanisms and early combination therapy in improving functional and hemodynamic outcomes. At the same time, real-world evidence continues to highlight delays in diagnosis and variability in treatment optimization. This contrast between advancing innovation and persistent clinical gaps underscores continued unmet need and scope for therapeutic evolution.
Recent Developments in Pulmonary Arterial Hypertension Treatment Space
- In April 2026, GSK plc announced the completion of its acquisition of 35Pharma Inc., a Canada-based, private, clinical-stage biopharmaceutical company specialising in the development of novel protein-based therapeutics. The acquisition includes HS235, a potential best-in-class molecule for the treatment of pulmonary hypertension.
- In April 2026, Inhibikase Therapeutics announced today that the first patient has been enrolled in the Company’s pivotal Phase III study IMPROVE-PAH (IKT-001 for Measuring Pulmonary vascular Resistance and Outcome Variables in a Phase III Evaluation of PAH.
- In March 2026, United Therapeutics Corporation announced that its long-term pivotal Phase III ADVANCE OUTCOMES study met its primary endpoint, with ralinepag reducing the risk of a clinical worsening event by 55% compared with placebo in patients with PAH (hazard ratio 0.45, 95% CI [0.33-0.62]; p<0.0001). The company intends to submit a New Drug Application for the drug to the US Food and Drug Administration by the second half of 2026.
- In February 2026, Gossamer Bio, Inc., a biopharmaceutical company focused on the development and commercialization of seralutinib for the treatment of pulmonary arterial hypertension (PAH) and pulmonary hypertension associated with interstitial lung disease (PH-ILD), announced topline results for the PROSERA Phase III Study of seralutinib in patients with PAH.
- In December 2025, Cereno Scientific announced that the US Food and Drug Administration (FDA) had granted clearance to initiate the company’s Phase IIb trial of its lead drug candidate CS1 for the treatment of pulmonary arterial hypertension (PAH).
- In October 2025, AliveGen announced new preclinical data demonstrating that its investigational therapy ALG-801 delivered superior efficacy compared to current standard-of-care agents in a widely accepted animal model of pulmonary arterial hypertension. The findings were presented at the European Respiratory Society (ERS) Congress, held September 27–October 1, 2025, in Amsterdam.
Scope of the Pulmonary Arterial Hypertension Pipeline Report
- Coverage: Global
- Pulmonary Arterial Hypertension Therapeutic Assessment By Product Type: Mono, Combination, Mono/Combination
- Pulmonary Arterial Hypertension Therapeutic Assessment By Clinical Stages: Discovery, Pre-clinical, Phase I, Phase II, Phase III
- Pulmonary Arterial Hypertension Therapeutics Assessment By Route of Administration: Oral, Intravenous, Subcutaneous, Parenteral, Topical
- Pulmonary Arterial Hypertension Therapeutics Assessment By Molecule Type: Monoclonal Antibody, Peptides, Polymer, Small molecule, Gene therapy
- Pulmonary Arterial Hypertension Therapeutics Assessment By Mechanism of Action: PDGFRα/β, CSF1R, and c-KIT inhibitor, Prostacyclin receptor agonist, DP1, EP2, and IP receptor agonists, PDE5i vasodilator, Anti-BMP9, Activin inhibitors; Growth differentiation factor inhibitors, Type II-B activin receptor antagonists, Smad2/3 pathway-activating ligands, CVRL1 protein agonists, BMPRII agonists, and others
- Key Pulmonary Arterial Hypertension Companies: Gossamer Bio, Chiesi, United Therapeutics Corporation, Pharmosa Biopharm, Liquidia, Respira Therapeutics, Pfizer, GSK, Biogen, Diagonal Therapeutics, Inhibikase Therapeutics, Cereno Scientific, Apollo Therapeutics, Regeneron Pharmaceuticals, AllRock Bio, AbbVie, Tenax Therapeutics, Beijing Continent Pharmaceutical Co, Ltd., Foresee Pharmaceuticals, Salubris Biotherapeutics, NS Pharma, Tectonic Therapeutics, and others
- Key Pulmonary Arterial Hypertension Pipeline Therapies: Seralutinib, Ralinepag, L606 (liposomal treprostinil), RT-234, PF-07868489, HS235, ALG 801, DIAG-723, IKT-001, Valproic acid, APL-9796, REGN13335, ROC-101, TNX-103, F230, Mirivadelgat, JK07, NS-863, TX000045, and others.
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Table of Contents
| 1. | Pulmonary Arterial Hypertension Pipeline Report Introduction |
| 2. | Pulmonary Arterial Hypertension Pipeline Report Executive Summary |
| 3. | Pulmonary Arterial Hypertension Pipeline: Overview |
| 4. | Analytical Perspective In-depth Commercial Assessment |
| 5. | Pulmonary Arterial Hypertension Clinical Trial Therapeutics |
| 6. | Pulmonary Arterial Hypertension Pipeline: Late-Stage Products (Pre-registration) |
| 7. | Pulmonary Arterial Hypertension Pipeline: Late-Stage Products (Phase III) |
| 8. | Pulmonary Arterial Hypertension Pipeline: Mid-Stage Products (Phase II) |
| 9. | Pulmonary Arterial Hypertension Pipeline: Early-Stage Products (Phase I) |
| 10. | Pulmonary Arterial Hypertension Pipeline Therapeutics Assessment |
| 11. | Inactive Products in the Pulmonary Arterial Hypertension Pipeline |
| 12. | Company-University Collaborations (Licensing/Partnering) Analysis |
| 13. | Key Companies |
| 14. | Key Products in the Pulmonary Arterial Hypertension Pipeline |
| 15. | Unmet Needs |
| 16. | Market Drivers and Barriers |
| 17. | Future Perspectives and Conclusion |
| 18. | Analyst Views |
| 19. | Appendix |
For further information on the pulmonary arterial hypertension cure research, reach out @ Medication for Pulmonary Arterial Hypertension Treatment
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