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Pulmonary Arterial Hypertension (PAH)NCT03523910

Right Ventricular Pulmonary Vascular Interaction in Pulmonary Hypertension

A study testing Magnetic Resonance Imaging (MRI) with exercise in people with Pulmonary Arterial Hypertension (PAH), run by University of Wisconsin, Madison.

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 goals of this study were two-fold. First, the attempt to quantify the relationships between pulmonary arterial stiffness, right ventricular function and the efficiency of ventricular-vascular interactions in patients with pulmonary arterial hypertension (PAH). Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Pulmonary Arterial Hypertension (PAH)
What is being tested?
Magnetic Resonance Imaging (MRI) with exercise
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
14 participants
Where
No sites listed yet
Study dates
25 Apr 2012to 13 Feb 2017
Phase
Interventional
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 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of pulmonary arterial hypertension or a subtype
  • Referred for right heart catheterization
  • Age between 18 and 80 years
  • New York Heart Association (NYHA) functional class I, II, or III

Who cannot join

  • Recent syncope (within 1 year)
  • Severe skeletal or muscle abnormalities prohibiting exercise
  • Mixed etiology pulmonary arterial hypertension
  • Severe lung disease
  • Test results indicating severe obstruction
  • Total lung capacity < 60%
Show all 11Show fewer
  • Pregnancy or breastfeeding
  • NYHA class IV patient
  • Contraindications to magnetic resonance imaging
  • Kidney dysfunction as determined by an estimated glomerular filtration rate (eGFR) of < 30 mL/min/1.73m2
  • Contraindication to gadolinium

About this study

The goals of this study were two-fold. First, the attempt to quantify the relationships between pulmonary arterial stiffness, right ventricular function and the efficiency of ventricular-vascular interactions in patients with pulmonary arterial hypertension (PAH). Second, the attempt to quantify the effects of exercise on pulmonary arterial stiffness, pulmonary vascular resistance, right ventricular function and the efficiency of ventricular-vascular interactions in patients with PAH.

Read the detailed description

The goals of this study are to quantify right ventricular-pulmonary vascular interactions in different types of PAH, to determine the temporal changes in these interactions with PAH progression and to quantify the effects of exercise on right ventricular function. The inclusion of the subpopulation of PAH patients with systemic sclerosis (SSc) was a result of the anticipation that this group has worse arterial stiffening than other groups, and consequently more inefficient right ventricular-pulmonary vascular interactions, which account for their worse prognosis.

Being tested
Magnetic Resonance Imaging (MRI) with exercise
Medical subject headings
Pulmonary Arterial Hypertension

What participants receive

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

  • Magnetic Resonance Imaging (MRI) with exerciseDevice

    Also called MRI

    MRI scan with a novel exercise device.

Study groups in NCT03523910
Study groupRoleWhat they receive
PatientExperimentalA research MRI scan with exercise will be obtained in conjunction with standard of care cardiopulmonary testing.
Receives: Device: Magnetic Resonance Imaging (MRI) with exercise

What is being measured

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

  1. The primary outcome is to comprehensively quantify right ventricular and pulmonary vascular function at rest and with exercise using magnetic resonance imaging.

    The hypotheses will be tested by comprehensively quantifying ventricular and vascular function in subjects with idiopathic pulmonary arterial hypertension, systemic sclerosis pulmonary arterial hypertension, and chronic thromboembolic pulmonary hypertension, using investigational magnetic resonance angiography techniques.

    Measured: Up to 24 months

Timeline

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

  1. First posted14 May 2018
  2. Study start25 Apr 2012
  3. Primary completion13 Feb 2017
  4. Study completion13 Feb 2017

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 N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Model description
Single center, open label, single-arm
Masking
None (open label)
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03523910
Sponsor's protocol ID
2015-1526
Other IDs
1R01HL105598-01A1
Status last verified
May 2018
First submitted
26 Feb 2018
Last updated
14 May 2018
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Macdonald JA, Franҫois CJ, Forouzan O, Chesler NC, Wieben O. MRI assessment of aortic flow in patients with pulmonary arterial hypertension in response to exercise. BMC Med Imaging. 2018 Dec 22;18(1):55. doi: 10.1186/s12880-018-0298-9.

    PubMed 30577768

Questions about this trial

What is this clinical trial studying?

A study testing Magnetic Resonance Imaging (MRI) with exercise in people with Pulmonary Arterial Hypertension (PAH), run by University of Wisconsin, Madison.

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 4 inclusion and 11 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 14 May 2018. Status can change between updates, so confirm with the study contact before making plans.

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?

The primary outcome is to comprehensively quantify right ventricular and pulmonary vascular function at rest and with exercise using magnetic resonance imaging. (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?

On the ClinicalTrials.gov record for NCT03523910, which also lists 1 linked publication.

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 14 May 2018.

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