United Therapeutics

63 total trials 5 currently recruiting 39 completed

United Therapeutics sponsors 63 registered US clinical trials on ClinicalTrials.gov, 5 of them currently recruiting, and 39 completed. 26 of these trials are in Phase 3-4 (later-stage) and 28 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Pulmonary Arterial Hypertension, with 4 trials.

Trial Pipeline

63 total, page 2 of 2

COMPLETED Phase 4

Safety Evaluation of Inhaled Treprostinil Administration Following Transition From Inhaled Ventavis in Pulmonary Arterial Hypertension (PAH) Subjects

NCT00741819

TERMINATED Phase 4

Rapid Switch From Flolan to Remodulin in the Outpatient Clinic

NCT00643604

TERMINATED Phase 4

Transitioning To IV Remodulin From Ventavis in Patients With PAH: Safety, Efficacy and Treatment Satisfaction

NCT00458042

TERMINATED Phase 4

Safety, Efficacy, and Treatment Satisfaction Switching From Flolan to Remodulin Using the Crono Five Ambulatory Pump in Patients With PAH

NCT00439946

COMPLETED Phase 3

An Open-Label Extension Trial of UT-15C Sustained-release (SR) in Subjects With Pulmonary Arterial Hypertension

NCT01027949

COMPLETED Phase 3

FREEDOM - M: Oral Treprostinil as Monotherapy for the Treatment of Pulmonary Arterial Hypertension (PAH)

NCT00325403

COMPLETED Phase 3

FREEDOM-C: Oral Treprostinil in Combination With an Endothelin Receptor Antagonist (ERA) and/or a Phosphodiesterase-5 (PDE-5) Inhibitor for the Treatment of Pulmonary Arterial Hypertension (PAH)

NCT00325442

COMPLETED Phase 4

Safety, Efficacy and Treatment Satisfaction in Patients With PAH Rapidly Switched From Epoprostenol to Remodulin

NCT00373360

COMPLETED Phase 3

Clinical Investigation Into Inhaled Treprostinil Sodium in Patients With Severe Pulmonary Arterial Hypertension (PAH)

NCT00147199

TERMINATED Phase 2

Effects of Remodulin in Patients With Critical Limb Ischemia Following a Vein Bypass Graft

NCT00067041

TERMINATED Phase 3

Study of Remodulin in Patients With Critical Limb Ischemia With No Planned Revascularization Procedures

NCT00060996

COMPLETED Phase 4

A Transition Study From Flolan® to Remodulin® in Patients With Pulmonary Arterial Hypertension

NCT00058929

COMPLETED Phase 3

Phase III Randomized Study of UT-15 in Patients With Primary Pulmonary Hypertension

NCT00004497

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What the Pipeline for United Therapeutics Shows

According to the ClinicalTrials.gov registry, United Therapeutics is linked to 63 US clinical trials across every stage of research activity. Of those, 5 studies are currently recruiting, about 8% of the sponsor's indexed portfolio, and 39 are already marked complete, representing roughly 62% of the total.

The phase mix for United Therapeutics reports 26 late-stage studies (Phase 3 and Phase 4 combined) and 28 earlier-phase studies (Phase 1 and Phase 2).

The top therapeutic focus area indexed for United Therapeutics is Pulmonary Arterial Hypertension with 4 linked trials, and 8 other condition areas appear in the top list above.

How to read these pipeline numbers

Recruiting share is one of the more practical signals here: it reflects how much of a sponsor's research is presently open to new participants, while the completed share indicates the depth of finished work that has already contributed registry results. Both counts come directly from the public ClinicalTrials.gov dataset and are refreshed on the registry side; this page mirrors the latest data pull without altering it.

A portfolio weighted toward Phase 3 usually reflects an organization advancing candidates toward regulatory review, where the research centers on comparative efficacy and broader safety across larger populations. A heavier Phase 1 and Phase 2 tilt generally indicates exploratory work, safety, dosing, and early signal detection, and is common among research-forward sponsors that seed many early programs. Phase 4 entries, when present, track interventions already in real-world use and typically focus on long-term safety, effectiveness across subgroups, or formulation comparisons.

That distribution is a quick read of where the organization concentrates its research attention; it does not imply product availability, market share, or any clinical endorsement. All numbers on this page come from ClinicalTrials.gov maintained by the National Library of Medicine, and counts can shift as new studies are registered or existing ones update their status. This information is provided for reference and educational purposes only, not as medical, investment, or regulatory advice, verify current details directly with ClinicalTrials.gov before relying on any figure here.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainTrial Editorial

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial from this sponsor, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.