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MRI scans could predict heart emergencies in device patients

NCT ID NCT07336225

Knowledge-focused Sponsor: Chinese Academy of Medical Sciences, Fuwai Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at whether MRI scans can help predict serious heart events in people who have implanted heart devices like pacemakers or defibrillators. Researchers will scan 1,500 adults before they get their device and track their health for years. The goal is to see if MRI findings can better identify who truly needs these devices and who is at highest risk for sudden cardiac death.

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 1,500 people

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

Started

Jan 2010

Expected to finish

Dec 2040

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

This study population includes patients meeting indications for cardiac implantable electronic devices (CIEDs), encompassing those with indications for pacemakers, implantable cardioverter defibrillators, or cardiac resynchronization therapy. This cohort will include individuals with multiple underlying conditions such as heart failure, arrhythmias, or conduction disorders like left bundle branch block, which clinically necessitate the implantation of CIEDs.

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: 1. Adult patients (≥18 years old). 2. Patients with guideline-based indications for cardiac implantable electronic device (CIED) therapy, including pacemaker, implantable cardioverter-defibrillator, or cardiac resynchronization therapy. 3. Patients who underwent cardiovascular magnetic resonance (CMR) imaging as part of routine clinical evaluation prior to CIED implantation or consideration of CIED therapy. Exclusion Criteria: 1. Patients younger than 18 years of age. 2. Patients with non-diagnostic or poor-quality CMR images that preclude reliable image analysis. 3. Patients with incomplete key clinical data or missing follow-up information for primary outcome assessment. 4. Patients with prior heart transplantation or implantation of ventricular assist devices before CMR examination. 5. Patients with congenital heart disease requiring surgical correction.

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Conditions

The condition(s) this trial relates to.

Arrhythmias, Cardiac cardiac rhythm disease

As listed by the trial registrant

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

Arrhythmias

How to take part

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

  1. 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 ↗

  2. 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

  • Study site

    RECRUITING

    Beijing, China

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