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Aortic Valve StenosisNCT03422770

Ultrasonic Markers for Myocardial Fibrosis and Prognosis in Aortic Stenosis

A study testing Echocardiography, MRI and Blood test in people with Aortic Valve Stenosis and Myocardial Fibrosis, run by Norwegian University of Science and Technology at 1 site in Norway.

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 study is part of a research project in which new ultrasound-based techniques will be examined to improve clinical decision making for patients with aortic stenosis. These patients could develop increased amounts of myocardial fibrosis. This fibrosis is associated with the patients' prognosis. Read more about this study

Who is it for?
Ages 18 to 90 yearsHealthy volunteers can take part
Conditions the study is for
Aortic Valve Stenosis, Myocardial Fibrosis
What is being tested?
Echocardiography, MRI and Blood test
Could I receive a placebo?
No, everyone receives an active treatment
How many people
132 participants
Where
1 siteNorway
Study dates
9 Jan 2018to 30 Jun 2020
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 90 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Able to undergo protocolled investigations
  • Patients: Mild, moderate or severe AS

Who cannot join

  • Renal insufficiency
  • Previously myocardial infarction (ECG, echocardiogram or hospital record)
  • Severe valvular heart disease (except patients)
  • Other cardiac disease known to cause myocardial fibrosis
  • Severe hypertension
  • Other medical conditions deterring protocolled investigation and follow-up
  • Other medical conditions affecting 5-yrs prognosis (cancer, pulmonary disease)
  • Severely reduced image-quality (echocardiography and MRI)

Trial locations and contacts

1 site in 1 country.

Norway1 site
  • Department of Circulation and Medical Imaging

    Trondheim

Other trials in Norway

About this study

This study is part of a research project in which new ultrasound-based techniques will be examined to improve clinical decision making for patients with aortic stenosis. These patients could develop increased amounts of myocardial fibrosis. This fibrosis is associated with the patients' prognosis. Fibrosis can be evaluated with magnetic resonance imaging (MRI), which unfortunately is quite expensive and not easily available. Ultrasound-based parameters will be developed for the assessment of the amounts of myocardial fibrosis, especially in the left ventricle. Then it will be examined whether these parameters can predict the patients magnitude of fibrosis and check for association with the patients prognosis. MRI will serve as a gold standard for quantification of myocardial fibrosis. The new echocardiographic techniques and parameters are expected to provide new insights in the interplay between aortic stenosis and left ventricular function, and to ultimately improve the care for patients with aortic stenosis.

The present study's objectives are:

  • Quantify the level of myocardial fibrosis in mild, moderate, and severe aortic stenosis compared with a healthy population.
  • Evaluate the patients outcome after one and three year of follow-up
Being tested
Echocardiography, MRI, Blood test, ECG and Holter-ECG, 6 min walking test
Keywords
Myocardium, Predictive Value of Tests, Prognosis, Clinical Decision-making, Heart Ventricles, Echocardiography
Medical subject headings
Aortic Valve Stenosis

What participants receive

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

  • EchocardiographyDiagnostic test

    Also called GE Vingmed ultrasound scanner e95, 2017

    Conventional transthoracic echocardiography will be performed, in addition 3D-imaging and acquisitions with high frame rate. The data from these patients will be anonymized and transferred for post-hoc analysis in dedicated computer software (GE Vingmed, EchoPac 2.0) and in validated machine learning algorithms.

  • MRIDiagnostic test

    Also called Magnetic resonance imaging

    Cardiac MRI will be performed. In all patients without contraindications a gadolinium-based contrast agent will be given.

  • Blood testDiagnostic test

    Conventional brachial venous blood samples will be drawn. Blood samples will be analyzed for markers of myocardial fibrosis at Oslo University Hospital.The findings will be related to imaging findings.

  • ECG and Holter-ECGDiagnostic test

    ECG/Holter-ECG will be performed, and the findings will be related to the imaging findings.

  • 6 min walking testDiagnostic test

    6 MWT will be performed, and the findings will be related to findings from MRI/echocardiography.

Study groups in NCT03422770
Study groupRoleWhat they receive
Mild aortic stenosisOther25 patients, all undergoing echocardiography, MRI, blood test, questionnaires, 6 min walking test, ECG and Holter-ECG. All undergoing 1 year control.
Receives: Diagnostic Test: Echocardiography; Diagnostic Test: MRI; Diagnostic Test: Blood test; Diagnostic Test: ECG and Holter-ECG; Diagnostic Test: 6 min walking test
Moderate aortic stenosisOther25 patients, all undergoing echocardiography, MRI, blood test, questionnaires, 6 min walking test, ECG and Holter-ECG. All undergoing 1 year control.
Receives: Diagnostic Test: Echocardiography; Diagnostic Test: MRI; Diagnostic Test: Blood test; Diagnostic Test: ECG and Holter-ECG; Diagnostic Test: 6 min walking test
Severe aortic stenosisOther50 patients, all undergoing echocardiography, MRI, blood test, questionnaires, 6 min walking test, ECG and Holter-ECG. All undergoing 1 year control.
Receives: Diagnostic Test: Echocardiography; Diagnostic Test: MRI; Diagnostic Test: Blood test; Diagnostic Test: ECG and Holter-ECG; Diagnostic Test: 6 min walking test
ControlsOther31 subjects, all undergoing echocardiography and blood test and MRI.
Receives: Diagnostic Test: Echocardiography; Diagnostic Test: MRI; Diagnostic Test: Blood test

What is being measured

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

  1. Cardiovascular morbidity and mortality

    Admission with heart failure or death caused by cardiac disease ('major adverse cardiac events' MACE)

    Measured: 1 + 3 year

Secondary outcomes (4)
  1. All cause mortality

    Mortality in general

    Measured: 3 years

  2. Time of first re-hospitalisation

    Time of first re-hospitalisation after inclusion

    Measured: 3 years

  3. Cardiac systolic function

    Echocardiographic systolic function based on left ventricular ejection fraction, global longitudinal strain, mitral annular plane systolic excursion (MAPSE)

    Measured: 1 year.

  4. Cardiac diastolic function

    Echocardiographic diastolic function based on the volume of the left atrium, the tricuspidal regurgitation, mitral annular velocities and mitral flow

    Measured: 1 year.

Timeline

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

  1. First posted6 Feb 2018
  2. Study start9 Jan 2018
  3. Primary completion30 Jun 2020
  4. Study completion30 Jun 2020

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
Non-randomised
Intervention model
Parallel groups
Model description
All participants will undergo 'echo', bloodtests and MRI. Participating patients will in addition undergo electrocardiogram (ECG/Holter ECG) and 6 min walking test.
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
132 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03422770
Sponsor's protocol ID
2017/1068
Status last verified
Aug 2023
First submitted
18 Jan 2018
Last updated
16 Aug 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Espeland T, Wigen MS, Dalen H, Berg EAR, Hammer TA, Salles S, Lovstakken L, Amundsen BH, Aakhus S. Mechanical Wave Velocities in Left Ventricular Walls in Healthy Subjects and Patients With Aortic Stenosis. JACC Cardiovasc Imaging. 2024 Feb;17(2):111-124. doi: 10.1016/j.jcmg.2023.07.009. Epub 2023 Sep 6.

    PubMed 37676209
  • Salles S, Espeland T, Molares A, Aase SA, Hammer TA, Stoylen A, Aakhus S, Lovstakken L, Torp H. 3D Myocardial Mechanical Wave Measurements: Toward In Vivo 3D Myocardial Elasticity Mapping. JACC Cardiovasc Imaging. 2021 Aug;14(8):1495-1505. doi: 10.1016/j.jcmg.2020.05.037. Epub 2020 Aug 26.

    PubMed 32861651

Questions about this trial

What is this clinical trial studying?

A study testing Echocardiography, MRI and Blood test in people with Aortic Valve Stenosis and Myocardial Fibrosis, run by Norwegian University of Science and Technology at 1 site in Norway.

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 2 inclusion and 8 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 16 Aug 2023. 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 Norway. 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?

Cardiovascular morbidity and mortality (time frame: 1 + 3 year). 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 NCT03422770, which also lists 2 linked publications.

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 16 Aug 2023.

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