Clinical research

Harvard-Emory ECG Database

The Harvard-Emory ECG database (HEEDB) is a large collection of 12-lead electrocardiography (ECG) recordings, prepared through a collaboration between Harvard University and Emory University investigators.

Listed for discovery. Access is provided by the original publisher under its terms.

Data coverage

Access & permitted use

Review the publisher’s documentation for availability, eligibility and permitted uses, including commercial analysis, model training and redistribution.

BDSP Restricted Health Data License 1.0.0 "BDSP Licence; Data User Agreement:"

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Related data sources

Clinical trialsOpen API

ClinicalTrials.gov Study Records

Registered clinical studies, recruitment status, interventions, conditions, sponsors and reported results. Searchable structured records available through the ClinicalTrials.gov API.

ClinicalTrials.gov / U.S. National Library of Medicine

Drug safetyOpen API

FDA Drug Adverse Event Reports

Publicly releasable drug adverse event and medication error reports drawn from FAERS, provided as queryable JSON through openFDA.

U.S. Food and Drug Administration

Population healthPublic download

CDC BRFSS 2025 Survey Microdata

Annual U.S. behavioral risk-factor survey covering chronic conditions, health behaviors and preventive care. The 2025 release contains 356,158 survey records.

Centers for Disease Control and Prevention