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New magnetic heart test could speed up heart attack diagnosis in ER

NCT ID NCT05809648

Diagnosis Sponsor: Mayo Clinic Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing whether a device called magnetocardiography (MCG) can quickly and accurately tell if chest pain is caused by a heart attack. Researchers at Mayo Clinic will use the MCG scanner on 1,000 emergency room patients with chest pain and compare its accuracy to standard tests. If it works, MCG could help doctors make faster decisions and reduce unnecessary hospital admissions.

What this could mean

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

Active substance
Magnetocardiography (MCG) device (Mesuron Avalon-H90)
What this could lead to
If successful, MCG could become a faster, more accurate way to diagnose heart attacks in the emergency room, reducing unnecessary hospital stays and missed diagnoses.
What could go wrong
This is an early observational study, not a treatment trial. The device may not prove more accurate than current methods, and results may not apply to all patients.

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 1,000 people

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

Started

Mar 2023

Expected to finish

Dec 2026

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

Subjects presenting with chest pain to the Mayo Clinic Minnesota, Saint Mary's hospital emergency department (ED).

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: * Patients presenting to the ED with acute chest pain when an ACS is on the differential diagnosis. * Patient willing and able to give informed consent. Exclusion Criteria: * ST elevation \> 1 mm on any two contiguous ECG leads. * Hemodynamic instability (SBP \>220 or \<80, HR \>160). * Pregnant patients. * Incarcerated patients (FMC patients). * Patients with a pacemaker or defibrillator. * Metal implants in the body (that are not MRI safe). * Patients that are unable to lie down in the MCG machine or stay still. * Patients who are unable to understand the informed consent process (ex: non-English speakers without an available interpreter, cognitive delay). * Patients without the capacity to provide written informed consent

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Conditions

The condition(s) this trial relates to.

acute coronary syndrome Chest Pain

As listed by the trial registrant

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

Chest pain Emergency medicine

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

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • Mayo Clinic Minnesota

    Rochester, Minnesota, 55905, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.