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A 16-Week, International, Multicenter, Double-Blind, Randomized, Placebo-Controlled Study of the Efficacy and Safety of Oral UT-15C Sustained Release Tablets in Subjects With Pulmonary Arterial Hypertension (FREEDOM-C2)
This study is ongoing, but not recruiting participants.

First Received on April 23, 2009.   Last Updated on May 5, 2011   History of Changes
Sponsor: United Therapeutics
Information provided by: United Therapeutics
ClinicalTrials.gov Identifier: NCT00887978
  Purpose

This study is an international, multi-center, randomized, double-blind, placebo-controlled study in subjects with PAH who are currently receiving approved therapy for their PAH (i.e., endothelin receptor antagonist and/or phosphodiesterase-5 inhibitor). Study visits will occur at 4 week intervals for 16 weeks with the key measure of efficacy being the 6-minute walk test. Study procedures include routine blood tests, medical history, physical exams, disease evaluation, and exercise tests.

Patients who complete all assessments for 16-weeks will also be eligible to enter an open-label, extension phase study (FREEDOM - EXT).


Condition Intervention Phase
Pulmonary Hypertension
Drug: UT-15C
Phase 3

Study Type: Interventional

Resource links provided by NLM:


Further study details as provided by United Therapeutics:

Primary Outcome Measures:
  • Change in 6-minute walk distance from Baseline to Week 16

Secondary Outcome Measures:
  • Borg Dyspnea Score
  • Clinical Worsening Assessment
  • Dyspnea Fatigue Index
  • Symptoms of PAH
  • World Health Organization (WHO) Functional Class
  • Clinical laboratory parameters [ Designated as safety issue: Yes ]
  • Electrocardiogram findings [ Designated as safety issue: Yes ]
  • Adverse Events [ Designated as safety issue: Yes ]
  • N-terminal pro-BNP
  • Vital Signs [ Designated as safety issue: Yes ]
  • Biomarkers
  • Quality of Life

Study Start Date: June 2009
Estimated Primary Completion Date: July 2011 (Final data collection date for primary outcome measure)
  Eligibility

Ages Eligible for Study:   18 Years to 75 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • A subject is eligible for inclusion in this study if all of the following criteria apply:
  • Between 18 and 75 years of age, inclusive.
  • Body weight at least 40 kg (approximately 90 lbs.)
  • PAH that is either idiopathic/familial; associated with collagen vascular disease; associated with HIV.
  • Currently receiving an approved endothelin receptor antagonist and/or an approved phosphodiesterase-5 inhibitor for at least 90 days and on a stable dose for at least the last 30 days.
  • Previous testing (e.g., right heart catheterization, echocardiography) consistent with the diagnosis of PAH.
  • Reliable and cooperative with protocol requirements.
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00887978

  Show 71 Study Locations
Sponsors and Collaborators
United Therapeutics
  More Information

No publications provided

Responsible Party: C. Shane McSwain, MHSc / Manager Clinical Operations, United Therapeutics
ClinicalTrials.gov Identifier: NCT00887978     History of Changes
Other Study ID Numbers: TDE-PH-308
Study First Received: April 23, 2009
Last Updated: May 5, 2011
Health Authority: United States: Food and Drug Administration

Additional relevant MeSH terms:
Hypertension
Hypertension, Pulmonary
Vascular Diseases
Cardiovascular Diseases
Lung Diseases
Respiratory Tract Diseases
Treprostinil
Antihypertensive Agents
Cardiovascular Agents
Therapeutic Uses
Pharmacologic Actions

ClinicalTrials.gov processed this record on May 23, 2012