NCT07154303Enrolling by invitation
Testing the Performance of Smartphones and Their Accessories in Detecting Irregularly Irregular Heart Rhythm
Smartphone-Based Use of Phonocardiography, Electrocardiography Accessory, and/or Facial Photoplethysmography to Detect Atrial Fibrillation: Diagnostic Performance Study
Source: ClinicalTrials.gov · Last updated 31 Dec 2025
Brief summary (registry, in English)
The purpose of this 4-in-1 observational study is to test the performance of artificial intelligences (AIs) in distinguishing irregularly irregular heart rhythm called atrial fibrillation (AF) from normal heart rhythm using physiological signals collected by smartphones' built-in hardware and/or external accessories. Participants will: * Have their weight, height, resting heart rate and blood pressures measured * Have 12-lead electrocardiogram (ECG) of their heart electrical activities recorded * Have their heart sounds and 1-lead ECG recorded from their chest, and optical-based blood flow data (photoplethysmography or PPG) and 1-lead ECG recorded from their fingers using smartphones' built-in microphone, camera, and/or external accessories * Optionally have their optical-based blood flow data recorded from their face using smartphones' built-in camera (remote PPG or rPPG). The researchers will also create a database containing the physiological signals collected in this study along with the participants' medically relevant information to help train and test future AIs for medical applications.
- Status (registry)
- Enrolling by invitation
- Study type
- Observational
- Enrollment
- 209 (estimated)
- First submitted
- 26 Aug 2025
- Start date
- 27 Aug 2025
- Primary completion date
- 31 Aug 2026
- Lead sponsor
- The University of Hong Kong
- Diseases
- Atrial fibrillation
- NCT number
- NCT07154303
What you commit to
- Study type: Observational
- Planned participants: 209
- From 27 Aug 2025 to the primary completion date, 31 Aug 2026
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Patients without atrial fibrillation who have another arrhythmia
Other
- Any of the following:
- Implanted active medical devices in the torso, such as pacemakers and defibrillators
- Completely missing one or more limbs, or missing any hand
- Disability in using their hands or arms
- Lack of both index fingers, or all fingers in any hand
- Both index fingers with any of the following characteristics:
- Tattooed/inked
- Reduced blood flow in the fingertip (e.g. perniosis or callus formation)
Who the study is looking for
- Age: ≥22 years (adult)
- Patients who have one of the following:
- Permanent atrial fibrillation, or
- Long-standing persistent atrial fibrillation (12 months or longer), or
- Confirmed 12-lead ECG diagnosis for persistent atrial fibrillation (\> 7 days) or sinus rhythm within 12 months at the time of their normal attendance at the hospital
Age in the registry: 22 years to - · Sex: All
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Queen Mary Hospital Coordinator of this site? Confirm its status | Hong Kong | China | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.