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Terminated Phase 3 Interventional Results available

A Phase 3 Adaptive Study to Evaluate the Safety and Efficacy of Inhaled Treprostinil in Participants With Pulmonary Hypertension (PH) Due to Chronic Obstructive Pulmonary Disease (COPD)

ClinicalTrials.gov ID: NCT03496623

Public ClinicalTrials.gov record NCT03496623. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 1, 2026, 8:25 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3, Randomized, Placebo-controlled, Double-blind, Adaptive Study to Evaluate the Safety and Efficacy of Inhaled Treprostinil in Patients With Pulmonary Hypertension Due to Chronic Obstructive Pulmonary Disease (PH-COPD)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The primary objective of this study is to demonstrate the efficacy of inhaled treprostinil compared to placebo in improving exercise ability as measured by change from baseline in 6-Minute Walk Distance (6MWD) following 12 weeks of active treatment in participants with PH-COPD.

Study identification

NCT ID
NCT03496623
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 3
Lead sponsor
United Therapeutics
Industry
Enrollment
188 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
May 7, 2018
Primary completion
Oct 12, 2022
Completion
Oct 12, 2022
Last update posted
Nov 23, 2023

2018 – 2022

United States locations

U.S. sites
65
U.S. states
26
U.S. cities
56
Facility City State ZIP Site status
The University of Alabama at Birmingham Birmingham Alabama 35294
Banner University Medical Center Phoenix Arizona 85006
University of Arizona Clinical and Translational Science (CATS) Research Center Tucson Arizona 85724
Loma Linda University Medical Center Loma Linda California 92354
University of Southern California Los Angeles California 90033
Cedars-Sinai Medical Center Los Angeles California 90048
West Los Angeles VA Healthcare Center Los Angeles California 90073
University of California Davis Medical Center Sacramento California 95817
Santa Barbara Pulmonary Associates Santa Barbara California 93102
University of Colorado Health Sciences Center Aurora Colorado 80045
South Denver Cardiology Littleton Colorado 80120
Hartford Hospital Hartford Connecticut 06106
MedStar Washington Hospital Center Washington D.C. District of Columbia 20010
St. Francis Medical Institute Clearwater Florida 33765
University of Florida Clinical Research Center Gainesville Florida 32610
St. Vincent's Lung, Sleep, and Critical Care Specialists Jacksonville Florida 32204
Mayo Clinic - Jacksonville Jacksonville Florida 32224
Pulmonary Disease Specialists Kissimmee Florida 34741
University of Miami Hospital Miami Florida 33136
University of South Florida Tampa Florida 33606
Pulmonary & Critical Care of Atlanta Atlanta Georgia 30342
Georgia Clinical Research Austell Georgia 30106
University of Illinois Medical Center Chicago Illinois 60612
Advocate Aurora Health Care Elmhurst Illinois 60126
Advocate Condell Medical Center Libertyville Illinois 60048
Advocate Heart Institute & Pulmonology Normal Illinois 06176
Edward Heart Hospital Oakbrook Terrace Illinois 60181
Indiana University Healh North Hospital Indianapolis Indiana 46202
St. Vincent Medical Group, Inc. Indianapolis Indiana 46260
University of Kentucky Medical Center Lexington Kentucky 40536
Kentuckiana Pulmonary Associates Louisville Kentucky 40202
University of Louisville Research Foundation Louisville Kentucky 40202
University of Maryland Medical Center Baltimore Maryland 21201
Massachusetts General Hospital Boston Massachusetts 02114
Brigham and Women's Hospital Boston Massachusetts 02115
Detroit Medical Center Lung Institute Detroit Michigan 48201
Henry Ford Health System Detroit Michigan 48202
Spectrum Health Grand Rapids Michigan 49546
Beaumont Health Troy Michigan 48085
University of Minnesota Minneapolis Minnesota 55455
The University of New Mexico Albuquerque New Mexico 87106
Albany Medical College Albany New York 12208
The Mount Sinai Hospital New York New York 10029
University of Rochester Medical Center Rochester New York 14623
University of North Carolina at Chapel Hill Chapel Hill North Carolina 27517
Duke University Medical Center Durham North Carolina 27710
The Carl and Edyth Lindner Research Center at the Christ Hospital Cincinnati Ohio 45219
University of Cincinnati Cincinnati Ohio 45267
Cleveland Clinic Cleveland Ohio 44195
The Ohio State University Wexner Medical Center Columbus Ohio 43210
Clinical Research Associates of Central PA, LLC DuBois Pennsylvania 15801
Temple Lung Center Philadelphia Pennsylvania 19140
Allegheny General Hospital Pittsburgh Pennsylvania 15212
University of Pittsburgh Medical Center - Montefiore Pittsburgh Pennsylvania 15213
Rhode Island Hospital Providence Rhode Island 02903
Medical University of South Carolina Charleston South Carolina 29425
Statcare Pulmonary Consultants Knoxville Tennessee 37909
UT Southwestern Medical Center Dallas Texas 75390
Texas Tech El Paso Texas 79905
Clear Lake Specialties/Tranquility Research Webster Texas 77598
Inova Fairfax Hospital Falls Church Virginia 22042
Pulmonary Associates of Richmond, Inc. Richmond Virginia 23230
Carilion Clinic Roanoke Virginia 24014
University of Wisconsin School of Medicine and Public Health Madison Wisconsin 53792
Medical College of Wisconsin Milwaukee Wisconsin 53226

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 11 non-U.S. sites.

Recently updated Pulmonary Hypertension trials

Other public records listing Pulmonary Hypertension. Sorted by last update posted; newest first. Not a recommendation.

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About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03496623, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Nov 23, 2023 · Synced Sep 1, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03496623 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →