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Heart scan study aims to predict sudden death before it strikes

NCT ID NCT00181233

Knowledge-focused Sponsor: Johns Hopkins University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study is testing whether advanced MRI and CT scans can identify people at highest risk for sudden cardiac death. Researchers will follow 400 participants who have low heart function and are scheduled to receive an implantable defibrillator. The goal is to see if these imaging techniques can better predict who will experience a life-threatening heart event.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could lead to better ways to predict who is at highest risk for sudden cardiac death, helping doctors decide who needs a defibrillator.
What could go wrong
This is an observational study, not a treatment trial. The imaging techniques may not prove accurate enough to change current practice, and results may take years to confirm.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 400 people

The number the study aims to enrol. It can still change while the study runs.

Start date

Oct 2003

Expected to finish

Jul 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Patients with contractile dysfunction (EF\< or = 35%) on an ischemic or non-ischemic basis undergoing clinically-indicated ICD implantation for primary prevention of sudden cardiac death (SCD)

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Left ventricular ejection fraction \<or = 35% * Planned implantable cardioverter-defibrillator (ICD) implantation for clinical indications (primary prevention) Exclusion Criteria: * History of sudden death (secondary prevention) * Contraindication to undergoing MRI (metallic implant, pacemaker, etc.)

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Conditions

The condition(s) this trial relates to.

Death, Sudden, Cardiac sudden arrhythmia death syndrome sudden cardiac arrest

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Sudden cardiac death

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Johns Hopkins Medical Institutions

    RECRUITING

    Baltimore, Maryland, 21287, United States

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