Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT03798613 · ClinicalTrials.gov registry record · NA
Accuracy of the Apple Watch Series 4 for Detection of Heart Rhythm: A Pilot Study
A NA study of Heart Rate Fast and Heart Rate Low, sponsored by The Cleveland Clinic.
- Completed
- Registry status
- NA
- Development phase
- 50
- Enrollment target
- 1
- Study location
NCT03798613: Completed NA study of Heart Rate Fast and Heart Rate Low, sponsored by The Cleveland Clinic.
NCT03798613 is a NA study of Heart Rate Fast and Heart Rate Low that has completed, run by The Cleveland Clinic. The registered enrollment target is 50 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (96% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03798613, a NA study of Heart Rate Fast and Heart Rate Low, has completed, sponsored by The Cleveland Clinic.
- COMPLETED
- Registry status
- NA
- Development phase
- 50 participants
- Enrollment target
- 1
- Study location
Study Summary
The objective of this study is to assess the accuracy of the Apple Watch 4 Series watch in generating an ECG that is suitable for determination of heart rhythm compared to rhythms monitored via telemetry. Secondary objective is to assess the accuracy of the Apple Watch 4 series watch in identifying atrial fibrillation when it is present.
Primary Outcome
Apple Watch 4 Series heart rate monitor device accuracy compared to standard continuous telemetry monitor. This will be expressed by the correlation coefficient.
Conditions Studied
Interventions
- DEVICE Apple Watch 4 Series Device
- DEVICE Continuous Telemetry Monitor
Study Locations (1)
Ohio
- Cleveland Clinic - Cleveland
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 50 participants |
| Start Date | 2018-12-21 |
| Est. Completion | 2019-03-29 |
| Phase | NA |
What the finished NCT03798613 record still lists
NCT03798613 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 50 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (96% lower).
The record links to 2 conditions, with Heart Rate Fast appearing as the primary indexed condition, and to 2 interventions - of which Apple Watch 4 Series Device is the first listed.
NCT03798613 reports a single indexed study location in Ohio.
Frequently Asked Questions
What is clinical trial NCT03798613 about?
NCT03798613 is a clinical study titled "Accuracy of the Apple Watch Series 4 for Detection of Heart Rhythm: A Pilot Study". The objective of this study is to assess the accuracy of the Apple Watch 4 Series watch in generating an ECG that is suitable for determination of heart rhythm compared to rhythms monitored via telemetry. Secondary objective is to assess the accuracy of the Apple Watch 4 series watch in identifying ...
What is the current status of trial NCT03798613?
This trial is currently completed. It is a NA study. The enrollment target is 50 participants. The study started on 2018-12-21. Estimated completion is 2019-03-29.
What conditions does trial NCT03798613 study?
This clinical trial studies the following conditions: Heart Rate Fast, Heart Rate Low.
What interventions are being tested in trial NCT03798613?
The interventions under investigation include: Apple Watch 4 Series Device (DEVICE), Continuous Telemetry Monitor (DEVICE).
Who is sponsoring clinical trial NCT03798613?
This trial is sponsored by The Cleveland Clinic, which has 688 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT03798613 being conducted?
This trial has 1 study location across Ohio. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03798613's enrollment target sits among peer trials
50 1279th of 2000 higher than 622 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
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT00200889 · 50 participants · Early Phase 1
Mapping Auricular Vagus Nerve Circuitry
- NCT00409435 · 50 participants · Phase 2
A Study of Pyridostigmine in Postural Tachycardia Syndrome
- NCT01202305 · 50 participants
The Use of Lymph Node Biopsies to Support HIV Pathogenesis Studies
- NCT01225913 · 50 participants · Phase 4
Mechanism(s) of Airflow Limitation During Exacerbation of Asthma
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI