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Your phone could soon hear a silent heart condition

NCT ID NCT06404437

Diagnosis Sponsor: Friedrich-Alexander-Universität Erlangen-Nürnberg 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 pilot study tests whether a smartphone app, using its built-in microphone and machine learning, can detect severe aortic stenosis – a common but serious heart valve issue. Researchers will record heart sounds from 100 adults (with and without the condition) and compare the app's accuracy to standard digital stethoscopes. If it works, this could make screening faster 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
smartphone app with machine learning
What this could lead to
If successful, this could lead to a quick, accessible screening tool for aortic stenosis using just a smartphone.
What could go wrong
This is a small pilot study (100 participants) testing algorithm accuracy, not a treatment. The app may not be reliable enough for real-world use yet.

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

100 people

The number who actually took part.

Started

Mar 2023

Expected to finish

Mar 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

No relevant heart valve disease or severe aortic stenosis with no other relevant heart valve disease

Ages

18 years and older

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: * Age ≥ 18 years * No relevant heart valve disease or severe aortic stenosis with no other relevant heart valve disease in echocardiography no older than 3 months Exclusion Criteria: * Previous surgerical or interventional therapy of a heart valve

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Conditions

The condition(s) this trial relates to.

aortic valve stenosis heart valve disorder

As listed by the trial registrant

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

Aortic valve stenosis

Contacts and locations

Locations

  • Deparment of Medicine 2 - Cardiology and Angiology, Friedrich-Alexander-Universität Erlangen-Nürnberg

    Erlangen, 91054, Germany

More trials for these conditions

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