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Wearable tech may soon spot heart problems without a doctor visit

NCT ID NCT04843371

Diagnosis Sponsor: Tulane 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing whether a simple, non-invasive sensor called photoplethysmography (PPG) — already found in many smartwatches — can accurately predict how well the heart pumps blood (ejection fraction) and other heart health measures. Researchers will have 500 adults wear a PPG device during an echocardiogram and use artificial intelligence to see if the sensor's signals can replace or supplement the ultrasound test. If it works, it could make heart monitoring easier and more accessible.

What this could mean

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

Active substance
Photoplethysmography (PPG) sensor
What this could lead to
If successful, this could allow people to monitor key heart metrics like ejection fraction and blood pressure using a simple wearable device, without needing an echocardiogram.
What could go wrong
This is an early-stage observational study with 500 participants, so the results may not apply to everyone. The PPG predictions are based on AI models that may not be accurate enough for clinical use.

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 500 people

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

Started

Aug 2021

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

All patients undergoing an echocardiogram at Tulane Medical Center may be asked to participate in the study.

Ages

18 to 120 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Male or Female aged18 years or older. * Patients scheduled to undergo an echocardiogram at Tulane Medical Center. Exclusion Criteria: * Participants under 18 years of age. * Participants with cognitive impairments. * Participants with a physical inability to wear the Biostrap during the echocardiogram. * Individuals who cannot read, speak, and/or understand English.

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Conditions

The condition(s) this trial relates to.

cardiomyopathy heart valve disorder pericardium disorder

As listed by the trial registrant

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

Cardiomyopathies Pericardial disease Valvular heart disease

How to take part

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

  1. The places running it

    3 sites. 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

  • East Jefferson General Hospital

    RECRUITING

    New Orleans, Louisiana, 70006, United States

  • Tulane Doctors - Speciality Care - Napoleon

    RECRUITING

    New Orleans, Louisiana, 70115, United States

  • University Medical Center

    RECRUITING

    New Orleans, Louisiana, 70112, United States

More trials for these conditions

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