Detect reduced left ventricular ejection fraction using a three-lead ECG and heart sounds with AI

Detection of Reduced Left Ventricular Ejection Fraction With Three-Lead ECG Using Artificial Intelligence

Observational Eko Devices, Inc. · NCT07270692

This will test whether an AI that uses a three-lead ECG and digital stethoscope heart sounds can tell if an adult has an ejection fraction ≤ 40%.

Quick facts

Study typeObservational
Enrollment500 (estimated)
Ages18 Years and up
SexAll
SponsorEko Devices, Inc. Industry-sponsored
Locations1 site (Mumbai, Maharashtra)
Trial IDNCT07270692 on ClinicalTrials.gov

What this trial studies

This observational study trains and evaluates an algorithm to predict an ejection fraction ≤ 40% using inputs from a three-lead ECG and heart sounds captured by Eko digital stethoscopes. Clinical echocardiogram results within seven days of recording serve as the reference standard for left ventricular ejection fraction. The project also examines how algorithm performance varies by age, gender, and race. Participants are adult outpatients able to give consent and undergo the required echocardiogram.

Who should consider this trial

Good fit: Adults aged 18 and older who can give informed consent and complete a clinical echocardiogram within seven days before or after the recordings are ideal candidates.

Not a fit: Hospitalized patients and those unable to provide informed consent or complete a timely echocardiogram are not eligible and unlikely to benefit from this protocol.

Why it matters

Potential benefit: If successful, the approach could provide a low-cost, noninvasive way to screen adults for reduced ejection fraction earlier and more broadly.

How similar studies have performed: Prior work using AI on standard 12-lead ECGs has shown promise for detecting low ejection fraction, but combining three-lead ECGs with digital stethoscope heart sounds is less tested and more novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults aged 18 years and older
* Able and willing to provide informed consent
* Complete a clinical echocardiogram within 7 days before or after study procedures

Exclusion Criteria:

* Unwilling or unable to provide informed consent
* Patients who are hospitalized

Where this trial is running

Mumbai, Maharashtra

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Low Ejection Fractionlow ejection fraction
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.