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

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United Therapeutics

Status and phase

Withdrawn
Phase 3

Conditions

Pulmonary Hypertension

Treatments

Drug: Placebo
Drug: UT-15C 1 mg
Drug: UT-15C 0.25 mg
Drug: UT-15C 5 mg

Study type

Interventional

Funder types

Industry

Identifiers

NCT00760916
TDE-PH-303

Details and patient eligibility

About

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)or as a monotherapy treatment. Study visits will occur at 4 week intervals for 12 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. At the end of the first 12-weeks, the patient will be un-blinded. Patients will continue with another 12-Week open label portion with visits occuring at 4-week intervals.

Patients who complete all assessments for 24-weeks will also be eligible to enter a 36 month open-label, extension phase study (FREEDOM - EXT).

Full description

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)or as a monotherapy treatment. Study visits will occur at 4 week intervals for 12 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. At the end of the first 12-weeks, the patient will be un-blinded. Patients will continue with another 12-Week open label portion with visits occuring at 4-week intervals.

Patients who complete all assessments for 24-weeks will also be eligible to enter a 36 month open-label, extension phase study (FREEDOM - EXT).

Sex

All

Ages

18 to 70 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Between 18 and 70 years of age, inclusive
  • Body weight at least 50 kilograms
  • PAH that is either idiopathic/familial; associated with repaired congenital systemic-to-pulmonary shunts (repaired ≥ 5 years); 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 or not currently receiving approved PAH therapy.
  • Previous testing (e.g., right heart catheterization, echocardiography) consistent with the diagnosis of PAH.
  • Reliable and cooperative with protocol requirements.

Exclusion criteria

  • Nursing or pregnant.
  • Received a prostacyclin within the past 30 days.
  • PAH due to conditions other than noted in the above inclusion criteria.
  • History of uncontrolled sleep apnea, renal insufficiency, anemia, left sided heart disease, uncontrolled systemic hypertension, or parenchymal lung disease.
  • Use of an investigational drug within 30 days of Baseline

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Quadruple Blind

0 participants in 4 patient groups, including a placebo group

Placebo
Placebo Comparator group
Description:
placebo
Treatment:
Drug: Placebo
UT-15C 0.25 mg
Active Comparator group
Description:
UT-15C 0.25 mg
Treatment:
Drug: UT-15C 0.25 mg
UT-15C 1 mg
Active Comparator group
Description:
UT-15C 1 mg
Treatment:
Drug: UT-15C 1 mg
UT-15C 5 mg
Active Comparator group
Description:
UT-15C 5 mg
Treatment:
Drug: UT-15C 5 mg

Trial contacts and locations

31

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Data sourced from clinicaltrials.gov

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