Sponsor or institution
Clinical trials and research at United Therapeutics
As of November 12, 2026, Find a Trial lists 4 clinical trials run by United Therapeutics that are recruiting, at sites in 16 countries (most in United States (4), Puerto Rico (1), Argentina (1)). By phase: Phase 1/2 (2), Phase 3 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 4Clinical trials
- 16Countries
Newest trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| GGTA1 KO pig kidney with thymus for people with end-stage kidney failure | Phase 1/2 | New York, New York | Recruiting | Nov 5, 2025 |
| 10 GE Xenokidney transplant for people with end-stage kidney disease | Phase 1/2 | Chicago, Illinois and 1 other locations | Recruiting | Mar 17, 2025 |
| Registry for patients with pulmonary hypertension linked to interstitial lung disease | — | Birmingham, Alabama and 70 other locations | Recruiting | Apr 29, 2024 |
| Evaluating inhaled treprostinil for progressive pulmonary fibrosis | Phase 3 | Birmingham, Alabama and 164 other locations | Recruiting | Jul 13, 2023 |
All recruiting trials (4)
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GGTA1 KO pig kidney with thymus for people with end-stage kidney failure
This test tries a genetically modified pig kidney with attached thymus tissue (GGTA1 KO Thymokidney) in people with end-stage kidney failure who either can't get a human donor kidney or are unlikely to get one within five years.
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10 GE Xenokidney transplant for people with end-stage kidney disease
This program will test whether a genetically engineered pig kidney (the 10 GE Xenokidney) can safely replace failed kidneys and help adults with end-stage renal disease who are either ineligible for or unlikely to receive a human transplant.
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Registry for patients with pulmonary hypertension linked to interstitial lung disease
This study is collecting information from patients with pulmonary hypertension linked to interstitial lung disease to see how different treatments affect their health over time.
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Evaluating inhaled treprostinil for progressive pulmonary fibrosis
This study is testing if inhaled treprostinil can help people with progressive pulmonary fibrosis breathe better and live longer compared to a placebo.
Quick answers
How many clinical trials run by United Therapeutics are recruiting right now?
4, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 16 countries. The most sites are in United States (4 trials), Puerto Rico (1 trial), Argentina (1 trial), Australia (1 trial), Belgium (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 1/2: 2, Phase 3: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.