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Pulmonary Arterial HypertensionNCT04787445

Effects of Pulmonary Hypertension Therapy in Atypical Pulmonary Arterial Hypertension

An observational study of Pulmonary Arterial Hypertension, run by Mayo Clinic at 1 site 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

The purpose of this study is to characterize the clinical and hemodynamic response of Pulmonary Arterial Hypertension (PAH) therapy in patients with atypical PAH and risk factors for left heart disease. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Pulmonary Arterial Hypertension
How many people
19 participants
Where
1 siteUnited States
Study dates
11 Mar 2021to 21 Nov 2023
Phase
Observational
Are there results?
None posted in the registry

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Eligible patients will be identified from screening of the pulmonary hypertension clinic who are then planned for outpatient catheterization for diagnosis and management of their atypical PAH.

Who may be able to join

  • Age ≥ 18 years
  • Pulmonary hypertension with mean PA pressure >20 mmHg and a planned initiation of pulmonary arterial hypertension therapy
  • No active treatment for precapillary pulmonary hypertension
  • Ambulatory (not wheelchair/scooter dependent)
  • Presence of any risk factor for left heart disease will qualify for inclusion (either atrial fibrillation, body mass index>30 kg/m2, arterial hypertension, diabetes, coronary artery disease or age>60 years)

Who cannot join

  • Significant chronic obstructive pulmonary disease that is a primary contributor to symptoms in the opinion of the investigator
  • Ischemia thought to contribute to dyspnea in the opinion of the investigator
  • Obstructive hypertrophic cardiomyopathy
  • Known infiltrative cardiomyopathy (amyloid)
  • Constrictive pericarditis or tamponade
  • Active myocarditis
Show all 14Show fewer
  • Complex congenital heart disease
  • More than mild aortic or mitral stenosis
  • Intrinsic (prolapse, rheumatic) valve disease with more than moderate mitral, tricuspid or aortic regurgitation
  • Acute or chronic severe liver disease as evidenced by any of the following: encephalopathy, variceal bleeding, INR > 1.7 in the absence of anticoagulation treatment
  • Terminal illness (other than HF) with expected survival of less than 1 year
  • Enrollment or planned enrollment in another therapeutic clinical trial in next 3 months.
  • Inability to comply with planned study procedures
  • Pregnancy or breastfeeding mothers

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Mayo Clinic in Rochester

    Rochester, Minnesota, 55905

Other trials in United States

About this study

Official title: Effects of Pulmonary Hypertension Therapy in Atypical Pulmonary Arterial Hypertension: An Exercise Hemodynamic Study (TAPH Study)

The purpose of this study is to characterize the clinical and hemodynamic response of Pulmonary Arterial Hypertension (PAH) therapy in patients with atypical PAH and risk factors for left heart disease.

Read the detailed description

This is an observational prospective study to better understand the clinical impact of Pulmonary Arterial Hypertension (PAH) specific therapy in patients with atypical PAH among those with risk factors for left heart disease

The study involves detailed baseline clinical evaluation prior to initiation of PAH therapy, followed by repeat clinical assessment after 6 months of medical therapy

Keywords
Right Heart Catheterization
Medical subject headings
Pulmonary Arterial Hypertension

What is being measured

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

  1. Describe prevalence of occult left heart disease during exercise in atypical pulmonary hypertension, as defined by pulmonary arterial wedge pressure during exercise cardiac catheterization.

    Pulmonary arterial wedge pressure >25 mmHg during exercise cardiac catheterization will indicate occult left heart disease.

    Measured: Baseline Catheterization

  2. Evaluate the therapeutic response of chronic pulmonary vasodilator therapy

    Favorable pulmonary vasodilatory effect will be associated a change of > 10% reduction in pulmonary artery-pressure flow slope from baseline to 6 month catheterization

    Measured: 6 Month Catheterization

Timeline

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

  1. First posted8 Mar 2021
  2. Study start11 Mar 2021
  3. Primary completion21 Nov 2023
  4. Study completion21 Nov 2023

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
19 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04787445
Sponsor's protocol ID
20-009542
Status last verified
Mar 2024
First submitted
15 Feb 2021
Last updated
21 Mar 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Pulmonary Arterial Hypertension, run by Mayo Clinic at 1 site 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 5 inclusion and 14 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 21 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Describe prevalence of occult left heart disease during exercise in atypical pulmonary hypertension, as defined by pulmonary arterial wedge pressure during exercise cardiac catheterization. (time frame: Baseline Catheterization). The study lists 2 primary outcomes in all. 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 21 Mar 2024.

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