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NCT03335800 · ClinicalTrials.gov registry record · NA
Apple Heart Study: Assessment of Wristwatch-Based Photoplethysmography to Identify Cardiac Arrhythmias
A NA study, sponsored by Apple.
- Completed
- Registry status
- NA
- Development phase
- 419,927
- Enrollment target
NCT03335800: Completed NA study, sponsored by Apple.
NCT03335800 is a NA study that has completed, run by Apple. The registered enrollment target is 419,927 participants, above the 1,396-participant average among 58,714 other NA trials with a reported enrollment target (29981% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03335800, a NA study, has completed, sponsored by Apple.
- COMPLETED
- Registry status
- NA
- Development phase
- 419,927 participants
- Enrollment target
Study Summary
The Apple Heart Study (AHS) is a research study conducted to evaluate whether the Apple Heart Study App can use data collected on the Apple Watch to identify irregular heart rhythms, including those from potentially serious heart conditions such as atrial fibrillation. Up to 500,000 can participate in the study.
Primary Outcome
Proportion of notified participants who received an irregular pulse notification and that had AF detected on the ambulatory ECG.
Interventions
- DEVICE Apple Heart Study App
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 419,927 participants |
| Start Date | 2017-11-29 |
| Est. Completion | 2019-02-21 |
| Phase | NA |
What the finished NCT03335800 record still lists
NCT03335800 is an interventional study that assigns participants to a tested intervention. Its 419,927 participants enrollment target places it among the larger protocols in the corpus, above the 1,396-participant average among 58,714 other NA trials with a reported enrollment target (29981% higher).
The record links to 0 conditions, and to 1 intervention - of which Apple Heart Study App is the first listed.
NCT03335800 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03335800 about?
NCT03335800 is a clinical study titled "Apple Heart Study: Assessment of Wristwatch-Based Photoplethysmography to Identify Cardiac Arrhythmias". The Apple Heart Study (AHS) is a research study conducted to evaluate whether the Apple Heart Study App can use data collected on the Apple Watch to identify irregular heart rhythms, including those from potentially serious heart conditions such as atrial fibrillation. Up to 500,000 can participate ...
What is the current status of trial NCT03335800?
This trial is currently completed. It is a NA study. The enrollment target is 419,927 participants. The study started on 2017-11-29. Estimated completion is 2019-02-21.
What interventions are being tested in trial NCT03335800?
The interventions under investigation include: Apple Heart Study App (DEVICE).
Who is sponsoring clinical trial NCT03335800?
This trial is sponsored by Apple, which has 12 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03335800's enrollment target sits among peer trials
419,927 1st of 2000 higher than 2,000 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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