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Pulmonary Arterial HypertensionPhase 4NCT00741819

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

A Phase 4 study testing Inhaled treprostinil in people with Pulmonary Arterial Hypertension, run by United Therapeutics at 15 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a 24-month, multi-center, prospective, open-label, safety evaluation in PAH subjects following transition from a stable dose of inhaled iloprost (Ventavis). Subjects are to be evaluated for safety throughout the course of the study while secondary assessments will be conducted at Baseline, Week 6, Week 12, and… Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Pulmonary Arterial Hypertension
What is being tested?
Inhaled treprostinil
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
73 participants
Where
15 sitesUnited States
Study dates
Sep 2008to Dec 2010
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Between 18 and 75 years of age
  • PAH diagnosis defined by following WHO Group I categories: idiopathic/familial, associated with unrepaired or repaired congenital systemic-to-pulmonary shunts (repaired >/= 5 years), associated with collagen vascular disease, associated with HIV, associated with appetite suppressant/toxin use
  • Baseline six-minute walk distance (6MWD) >/= 250 meters
  • Currently receiving Ventavis and be stable at current dose for 30 days prior to Baseline
  • If currently receiving other approved background therapy (i.e. endothelin receptor antagonist or phosphodiesterase-5-inhibitor or both) must be on stable dose for 30 days prior to Baseline
  • Previous testing (e.g. right heart catheterization, echocardiography) consistent with diagnosis of PAH

Who cannot join

  • Nursing or pregnant
  • Has acute concomitant disease (e.g. portal hypertension, chronic thromboembolic disease, pulmonary veno-occlusive disease, etc) other than those accepted as part of the inclusion criteria or has had atrial septostomy
  • History of uncontrolled sleep apnea, left-sided heart disease, or parenchymal lung disease
  • Use of investigational drug within 30 days of Baseline

Trial locations and contacts

15 sites in 1 country.

15 sites in 1 country

United States15 sites
  • University of Alabama Birmingham

    Birmingham, Alabama, 35294

  • Ohio State University Medical Center

    Columbus, Ohio, 43210

  • Duke University Medical Center

    Durham, North Carolina, 27710

  • Baylor College of Medicine

    Houston, Texas, 77030

  • Kansas University Medical Center

    Kansas City, Kansas, 66160

  • UCSD Medical Center

    La Jolla, California, 82037

  • Ronald Reagan UCLA Medical Center

    Los Angeles, California, 90095

  • Vanderbilt University Medical Center

    Nashville, Tennessee, 37232

  • Long Island Jewish Medical Center - North Shore

    New Hyde Park, New York, 11040

  • Beth Israel Medical Center

    New York, New York, 10003-3314

  • Cornell University Medical Center

    New York, New York, 10021

  • Columbia Presbyterian Medical Center

    New York, New York, 10032

  • Allegheny General Hospital

    Pittsburgh, Pennsylvania, 15212

  • University of Pittsburg Medical Center

    Pittsburgh, Pennsylvania, 15213

  • Mary M. Parkes Center for Asthma, Allergy and Pulmonary Care

    Rochester, New York, 14623

Other trials in United States

About this study

Official title: An Open Label, Multi-center Study Evaluating the Safety of Long-term Inhaled Treprostinil Administration Following Transition From Inhaled Ventavis® (Iloprost) in Subjects With Pulmonary Arterial Hypertension.

This is a 24-month, multi-center, prospective, open-label, safety evaluation in PAH subjects following transition from a stable dose of inhaled iloprost (Ventavis).

Subjects are to be evaluated for safety throughout the course of the study while secondary assessments will be conducted at Baseline, Week 6, Week 12, and Months 6, 12, 18 and 24 following initiation of treprostinil sodium.

Being tested
Inhaled treprostinil
Keywords
pulmonary arterial hypertension, PAH, treprostinil sodium, inhalation, ventavis, iloprost
Medical subject headings
Pulmonary Arterial Hypertension, Respiratory Aspiration

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Inhaled treprostinilDrug

    Also called Tyvaso

Study groups in NCT00741819
Study groupRoleWhat they receive
Inhaled treprostinilExperimentalSolution for oral inhalation treprostinil (0.6 mg/mL). Inhaled via an ultrasonic nebulizer which provides a dose of 6mcg of treprostinil per breath. Doses are titrated up to 12 breaths four times daily.
Receives: Drug: Inhaled treprostinil

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Adverse Events

    Overall safety of transitioning from inhaled iloprost to inhaled treprostinil was assessed by type and frequency of adverse events.

    Measured: up to 24 months

Secondary outcomes (7)
  1. Six-minute Walk Distance (6MWD)

    Change in 6MWD from Baseline to Week 12. The 6-minute walk test (6MWT) was conducted at Baseline (10-30 minutes following the last dose of inhaled iloprost) and at Week 12 (10-60 minutes following the dose of inhaled treprostinil). The change in distance (meters) between Baseline and Week 12 is reported below.

    Measured: Baseline and 12 weeks

  2. Quality of Life (QoL) Assessment: Cambridge Pulmonary Hypertension Outcome Review (CAMPHOR)

    Change in CAMPHOR Scores from Baseline to Week 12. The CAMPHOR is a health related quality of life instrument validated for pulmonary hypertension that assesses impairment (symptoms), disability (activities) and quality of life. The questionnaire is divided into three sections; Symptoms (Scores 0-25; high scores indicate more symptoms), Activity (Score 0-30; low score indicates good functioning)and Quality of Life (0-25; high scores indicate poor QoL). The sum of these scores equates to the Total score (0-80). In the CAMPHOR scores, lower scores indicate improvements.

    Measured: Baseline and 12 weeks

  3. Treatment Satisfaction Questionnaire of Medication (TSQM)

    Change in TSQM score from Baseline to Week 12. The TSQM is a validated instrument (Health and Quality of Life Outcomes 2004, 2:12) that measures major dimensions of patient satisfaction with medications. The questionnaire is comprised of 15 questions which fall into one of four categories; Effectiveness, Side-Effects, Convenience, and Global Satisfaction. Responses are scaled on a seven point bipolar scale from 'Extremely Satisfied' to 'Extremely Dissatisfied' where higher scores indicate improvements (total scores from 0-100). The questionnaire was completed at Baseline and Week 12. The Baseline questionnaire focused on the subject's satisfaction with inhaled iloprost treatment, while the questionnaire completed at Week 12 focused on the subject's satisfaction with inhaled treprostinil.

    Measured: Baseline and 12 weeks

  4. Patient Impression of Change

    The patient impression of change (PIC) was three single therapy-related questions related to the subjects overall impression of the transition from inhaled iloprost to inhaled treprostinil. Subjects were surveyed related to their overall impression of the transition from inhaled iloprost to inhaled treprostinil at Week 12.

    Measured: Baseline and 12 weeks

  5. N-terminal Prohormone of Brain Natriuretic Peptide (NT-proBNP)

    Change in NTpro-BNP from Baseline to Week 12. Blood samples were collected for plasma NTpro-BNP analysis during the study.

    Measured: Baseline and Week 12

  6. World Health Organization (WHO) Functional Class

    Change in WHO Functional Class (FC) from Baseline to Week 12. Data presented as percent of subjects who either improved FC, worsened FC, or had no change in FC from Baseline to Week 12.

    Measured: Baseline and 12 Weeks

  7. Drug Administration Activities Questionnaire

    Change in tasks from Baseline to Week 12. At Baseline and Week 12, subjects provided information related to the daily administration and time requirements of inhaled iloprost (Baseline) and inhaled treprostinil (Week 12).

    Measured: Baseline and 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Aug 2008 (estimated)
  2. Study startSep 2008
  3. Primary completionMar 2010
  4. Study completionDec 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
73 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00741819
Sponsor's protocol ID
RIN-PH-401
Status last verified
Jan 2013
First submitted
23 Aug 2008
Last updated
20 Feb 2013
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Inhaled treprostinil in people with Pulmonary Arterial Hypertension, run by United Therapeutics at 15 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 Feb 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 15 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 20 Feb 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Adverse Events (time frame: up to 24 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Feb 2013.

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