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Analysis of ECGio to Predict Coronary Stenosis Against a Mixed Reference Standard

A Study to Measure Underlying Coronary Stenosis; a Retrospective, Multi-center Study to Measure Efficacy of ECGio Against Multiple Reference Standards

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07375810
Acronym
SUMMER
Enrollment
978
Registered
2026-01-29
Start date
2026-04-01
Completion date
2026-09-01
Last updated
2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Coronary Artery Disease (CAD)

Keywords

Artificial Intelligence, Electrocardiogram, Coronary Artery Disease

Brief summary

The study objective is to evaluate the effectiveness of the ECGio algorithm in predicting clinically significant coronary artery disease . ECGio's diagnostic performance during the trial will be compared against an objective performance ¬criteria using a mixed reference standard of quantitative coronary angiography and quantitative coronary computed tomography angiography in patients a general adult population under suspicion of coronary artery disease.

Interventions

The AI-Analysis done on the ECGs in a retrospective fashion

Sponsors

Heart Input Output Inc
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 89 Years
Healthy volunteers
No

Inclusion criteria

1. Patients 18 years of age or older at time of data collection. 2. Patients with medical records stored in a digitized format. 3. Patients under suspicion of coronary artery disease (both suspicion of significant coronary artery disease as well as to rule out significant CAD) who present to the site with an electrocardiogram recorded up to 30 days prior to Coronary Computed Tomography Angiography.

Exclusion criteria

1. Patients with acute coronary syndrome. 2. Patients who previously underwent coronary artery bypass grafting. 3. Patients whose electrocardiogram tracing has extreme noise or artifact to the extent that it would be recommended to redo the tracing. 4. Patients with prior percutaneous coronary intervention resulting in stenting. 5. Unanalyzable invasive coronary angiogram. 6. Unanalyzable Coronary Computed Tomography Angiography. 7. Unanalyzable electrocardiogram signal. 8. Incomplete invasive coronary angiogram (e.g., only the right coronary artery was injected and visualized). 9. Patient core lab analyzed Coronary Computed Tomography Angiography showed ≥ 50% blockage in any vessel but patient was not referred to invasive coronary angiogram.

Design outcomes

Primary

MeasureTime frameDescription
Sensitivity & SpecificityWithin 30 days of enrollmentThe lower 95% bound of ECGio's sensitivity and specificity in patients who underwent invasive angiography or computed tomography angiography (Co-primary endpoints)

Secondary

MeasureTime frameDescription
Sensitivity & SpecificityFor the first 300 patients referred to invasive angiography through study completion, an average of 90 daysThe lower 95% bound of ECGio's sensitivity and specificity in patients who underwent invasive angiography (Co-secondary endpoints) in enrollment period 2
Demographic PerformanceFor patients in the 30 days following computed tomography angiographyECGio's predictive performance across different demographic groups (e.g Race, Sex, Risk Factors)
Angiographic Stenosis PredictionFor the first 300 patients referred to invasive angiography through study completion, an average of 90 daysThe Root Mean Squared Error in predicting the greatest diameter stenosis per vessel (Left Main Artery, Left Anterior Descending Artery, Left Circumflex Artery, Right Coronary Artery)

Countries

United States

Contacts

CONTACTMichael Leasure
Michael.Leasure@heartio.ai6104517343
PRINCIPAL_INVESTIGATORGary S Mintz

CardioVascular Research Foundation

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 31, 2026