United Therapeutics is the lead sponsor of 8 current clinical trials in our USA, UK and China registers. 4 are recruiting patients now. The most common phase is Phase 3. The drugs named most often in its trials are Treprostinil. The most-studied condition is Interstitial Lung Disease.
| Study | Phase | Status | Start | Registers |
|---|---|---|---|---|
|
Study of the Efficacy and Safety of Inhaled Treprostinil in Subjects With Progressive Pulmonary Fibrosis (TETON-PPF)
NCT05943535 · ClinicalTrials.gov ↗ · Progressive Pulmonary Fibrosis, Interstitial Lung Disease
Drug: Treprostinil |
Phase 3 | Recruiting | 2023-10 | UK, USA |
|
DeciPHer-ILD: A Real-world Patient Registry in Group 3 Pulmonary Hypertension Associated With Interstitial Lung Disease (PH-ILD)
NCT06388421 · ClinicalTrials.gov ↗ · Pulmonary Hypertension Due to Lung Diseases and Hypoxia, Pulmonary Hypertension, Interstitial Lung Disease
|
Observational | Recruiting | 2025-01 | USA |
|
Study to Evaluate the Safety and Efficacy of the GGTA1 KO Thymokidney in Patients With ESRD
NCT07224763 · ClinicalTrials.gov ↗ · ESRD (End-Stage Renal Disease), Kidney Transplantation, Xenotransplantation
|
Phase 1/2 | Recruiting | 2026-11 | USA |
|
Study to Evaluate the Safety and Efficacy of the 10 GE Xenokidney in Patients With ESRD
NCT06878560 · ClinicalTrials.gov ↗ · ESRD (End-Stage Renal Disease), Kidney Transplantation, Xenotransplantation
|
Phase 1/2 | Recruiting | 2025-10 | USA |
|
A Study Evaluating the Long-Term Efficacy and Safety of Ralinepag in Subjects With PAH Via an Open-Label Extension
NCT03683186 · ClinicalTrials.gov ↗ · PAH, Pulmonary Hypertension, Pulmonary Arterial Hypertension
|
Phase 3 | By invitation | 2019-09 | UK, USA, China |
|
Extension Study of Inhaled Treprostinil in Subjects With Fibrotic Lung Disease
NCT04905693 · ClinicalTrials.gov ↗ · Idiopathic Pulmonary Fibrosis, Interstitial Lung Disease, Progressive Pulmonary Fibrosis
Drug: Treprostinil |
Phase 3 | By invitation | 2022-09 | USA |
|
ADAPT - A Patient Registry of the Real-world Use of Orenitram®
NCT03045029 · ClinicalTrials.gov ↗ · Pulmonary Arterial Hypertension
Drug: Treprostinil |
Observational | Active, closed | 2017-07 | USA |
|
A Study of a Mean Pulmonary Artery Pressure-Targeted Approach With Early and Rapid Treprostinil Therapy to Reverse Right Ventricular Remodeling in Participants With Pulmonary Arterial Hypertension
NCT05203510 · ClinicalTrials.gov ↗ · Pulmonary Arterial Hypertension
Drug: Treprostinil |
Phase 4 | Active, closed | 2022-10 | USA |
Registers list studies that are recruiting, about to open, active but closed to enrolment, or enrolling by invitation. The UK and USA registers cover industry-sponsored studies only. Titles and statuses are copied from the registry as published.
Drugs and biologicals named as interventions in these trials, with the number of this sponsor's trials that name each one. Placebos and generic comparators are excluded.
| Register | Trials | Recruiting |
|---|---|---|
| Clinical trials in USA | 8 | 4 |
| Clinical trials in UK | 2 | 1 |
| Clinical trials in China | 1 | 0 |
A trial with sites in more than one country appears in each of those registers.
| Sponsor | Trials |
|---|---|
| Insmed Incorporated | 2 |
| Pulmovant | 2 |
Sponsors with the most current trials registered for this condition.
United Therapeutics is the lead sponsor of 8 current trials on ClinicalTrials.gov in our USA, UK and China registers, as of the registry sync on 26 September 2026. Completed and withdrawn studies are not counted.
Yes. 4 of its 8 ClinicalTrials.gov trials are recruiting. Eligibility and site contacts are on each trial's record. Only the study team can confirm whether a patient is eligible.
Its current trials name 1 drug or biological as interventions. The most frequent are Treprostinil (4). The number in brackets is how many of its trials name each drug.
Every trial, status, phase and condition on this page is copied from public ClinicalTrials.gov and EU CTIS records by a daily sync, grouped by the sponsor name each registry records. It says nothing about the organisation beyond its registered trials, and it is not medical advice.
Everything on this page is copied from public registry records — it is not written from memory, and nothing here describes the organisation beyond its registered trials. Each trial links to its own record so you can check it yourself.
This page is built automatically: a daily sync job reads the registry records behind our trial registers and groups every current trial by its lead sponsor name, ignoring legal-form suffixes such as Inc. or Ltd. A small, hand-checked list joins the same organisation's different registry names (for example its EU legal entity). There is no AI drafting and no per-sponsor editorial pass. The “last verified” date above is the timestamp of that sync, not a review date. Our general editorial approach is described in our editorial standards and corrections policy. The the registries data on this page was last retrieved on 26 Sep 2026.