An interventional study of Apple Watch in Atrial Fibrillation, sponsored by Mayo Clinic. Active, not recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-01-22.
Sponsored by Mayo Clinic · Not applicable, Interventional, and Diagnostic
The purpose of this research is to test whether Apple Watch, used as a long-term monitoring device, can enable early detection of atrial fibrillation.
3,870 studies on the registry are indexed under Atrial Fibrillation; 924 are open to participants now.
This study's planned enrollment of 2,000 is above the median of 144 across 2,380 interventional studies indexed under Atrial Fibrillation.
Browse Atrial Fibrillation studies →Mayo Clinic is the lead sponsor of 3,218 studies on the registry; 670 are open to participants now.
Of its 445 completed or terminated interventional studies of FDA-regulated products, 313 (70%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Participants will be asked to wear an Apple Watch and use the Mayo Clinic ECG Study App to collect and share data with the study team.
Other: Apple Watch
Participants will receive usual care.
Apple Watch
Atrial fibrillation
Number of participants diagnosed with atrial fibrillation
Time frame: 2 years
Change in individuals' maximum learning span
Measured using the Mayo Test Drive (MTD):Test Development through Rapid Iteration, Validation and Expansion. A web-based platform for remote self-administered cognitive assessment that uses the Stricker Learning Span (SLS), which is a computer adaptive word-list memory test that matches test difficulty to user performance. Maximum learning span is total number of words recognized.
Time frame: Baseline, 2 years
Change in processing speed measure
Measured using the Mayo Test Drive (MTD):Test Development through Rapid Iteration, Validation and Expansion. A web-based platform for remote self-administered cognitive assessment that uses a symbols test to measure processing speed reported in average completion time (seconds).
Time frame: Baseline, 2 years
Ischemic stroke or systemic embolism events
Number of ischemic stroke or systemic embolism events
Time frame: 2 years
Major bleeding
Number of major bleeding events
Time frame: 2 years
Mortality
Number of participant deaths
Time frame: 2 years
Plan to share: No
This study is active, not recruiting, as verified in Jan 2026. You cannot join it, but the record below documents what was studied.
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