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Myocardial InfarctionDIRECTNCT02508727

Myocardial Deformation in Real-time 3D Ultrasound. Normal Values in Adults and Validation Against the Tagged MRI

A study testing MRI and 3D cardiac ultrasound in people with Myocardial Infarction, run by University Hospital, Caen at 1 site in France.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Cardiac exploration almost systematically requires the acquisition and / or calculating function indices. The ejection fraction (LVEF) is probably based index most widely used in all cardiac exploration methods. This relatively universal overall index has very many qualities. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Myocardial Infarction
What is being tested?
MRI and 3D cardiac ultrasound
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteFrance
Study dates
Mar 2012to Dec 2015
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 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Patients who signed the consent form
  • Beneficiaries of the health security system
  • No known cardiovascular disease to healthy subjects or patient having a previous heart attack or less proved by cardiac MRI or viability of myocardial scintigraphy performed before. The infarct zone is defined as the area of delayed enhancement cardiac MRI signal in 10-15 minutes after gadolinium injection.

Who cannot join

  • Age <18 years
  • Adult guardianship
  • Contraindications to MRI: metallic implants, pacemaker, implantable defibrillator, claustrophobia
  • For patients only: Contraindication to Dotarem (renal failure with creatinine clearance <30 ml / min / 1.73m2 according to MDRD formula, known allergy to gadolinium salts)
  • Pregnant and or lactating
  • Recent acute coronary syndrome (<6 weeks)
Show all 9Show fewer
  • Ventricular arrhythmias and supra ventricular significant
  • Heart failure stage III-IV NYHA
  • Unbalanced severe hypertension (BP> 160/110 mmHg)

Trial locations and contacts

1 site in 1 country.

France1 site, 1 recruiting
  • Caen University Hospital

    Caen, Basse Normandie, 14033

    Eric Saloux, MD, 0231065395

    Eric saloux, MD

    Recruiting

Other trials in France

About this study

Cardiac exploration almost systematically requires the acquisition and / or calculating function indices. The ejection fraction (LVEF) is probably based index most widely used in all cardiac exploration methods. This relatively universal overall index has very many qualities. LVEF is widely used in clinical practice through the exploration and monitoring of all heart disease.

Current progress in the management of various cardiomyopathies pass through the detection of early attacks. This testing often takes place upstream changes in LVEF that remains long normal or normalized. Sensitive indicators capable of detecting early abnormalities of regional functions are essential in addition to conventional echocardiography. Various studies have shown the contribution of these new markers in early detection of abnormalities of the cardiac function. The most widely used indicator in these studies because of its high sensitivity to analyze the movements of the heart is the tissue Doppler. Tissue Doppler however has limitations in particular its dependence on the incident angle, which makes it impossible to correct analysis of non-aligned in the axis of the ultrasonic beam components.

Read more

A new way of exploring the regional function of the heart, speckle tracking, can analyze heart deformations along the principal axes of the heart. The advantage of this technique has been shown in various pathological situations. Currently, this technique is mostly used in longitudinal and transverse view 2D imposing multiple planes cuts. 3D potential of this technique is not currently known, acquisition of 3D technology is recent (2004) and dedicated software is confidential dissemination and unvalidated.

The validated technique, 3D reference analysis of myocardial deformation is tagged MRI. In the 90s, studies have demonstrated the feasibility of this technique, the ability to access all of the myocardial deformation in space and to define normal values. The cost of the procedure, duration, limited accessibility and post-processing very time consuming limited the scope of the clinical benefits of this modality.

Echocardiography has major advantages over MRI, particularly its high availability, low cost and flexibility of use. The ability to access with MRI as the 3D deformation of the heart is a new opportunity that it is essential to validate.

The main purpose of the study is to compare the strain values obtained 3D ultrasound to those obtained by MRI tagged in a control group and a group of subjects with an anterior infarction sequela.

Being tested
MRI, 3D cardiac ultrasound
Medical subject headings
Myocardial Infarction

What participants receive

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

  • MRIOther

  • 3D cardiac ultrasoundOther

Study groups in NCT02508727
Study groupRoleWhat they receive
Healthy volunteersOtherHealthy volunteers
Receives: Other: MRI; Other: 3D cardiac ultrasound
Subjects with an anterior myocardial infarction sequelaOtherSubjects with an anterior myocardial infarction sequela
Receives: Other: MRI; Other: 3D cardiac ultrasound
Subjects with lower myocardial infarction sequelaeOtherSubjects with lower myocardial infarction sequelae
Receives: Other: MRI; Other: 3D cardiac ultrasound

What is being measured

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

  1. Strain value

    Comparison beetween arms and taage MRI and 3D cardiac echography

    Measured: baseline

Timeline

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

  1. First posted27 Jul 2015 (estimated)
  2. Study startMar 2012
  3. Primary completionDec 2015 (estimated)

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
Basic science
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
40 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02508727
Sponsor's protocol ID
10-156
Acronym
DIRECT
Status last verified
Jul 2015
First submitted
23 Jul 2015
Last updated
27 Jul 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing MRI and 3D cardiac ultrasound in people with Myocardial Infarction, run by University Hospital, Caen at 1 site in France.

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 3 inclusion and 9 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: status not confirmed, as of the sponsor's last update on 27 Jul 2015. 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 France. 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?

Results are not available in the source record.

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

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Strain value (time frame: baseline). 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 27 Jul 2015.

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