Detecting Atrial Fibrillation with Smartphone Camera Heart Rate Signals

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study enrolls adults 22 and older at multiple sites who own smartphones and are evaluated for AF. The Heart Rhythm Software algorithm runs on participants’ smartphones to generate AF detections from PPG signals captured via the camera, and results are compared to simultaneous 12-lead ECG measurements. The goal is to assess how well the smartphone-based method identifies AF episodes in a real-world, diverse patient population. Participants provide consent, and data are collected at sites including Nair Research, South Denver Cardiology, Tulane University, and Happitech’s collaborating centers. The study addresses the need for accessible, inexpensive AF detection tools that could support earlier diagnosis and management.

Why it matters

Who can join: the full rules

Inclusion Criteria:

1. Adults aged 22 years or older
2. Owns a smartphone and knows how to operate and navigate different applications.
3. Individuals able to read, understand, and sign the consent form.
4. Cardiology patients consulting the cardiac outpatient clinic.
5. History of persistent AF or other cardiac rhythm

Exclusion Criteria:

1. Participants with cognitive impairments
2. Individuals who cannot read, speak, and/or understand English
3. Patients with implantable neurostimulators, cardiac implantable device in an atrial or ventricular paced rhythm documented on a 12-lead ECG during the initial study visit

Where it's running

• Nair Research, LLC dba Arrhythmia Research Group LLC
  Jonesboro, Arkansas, United States Recruiting
• South Denver Cardiology
  Littleton, Colorado, United States Recruiting
• CardioVascular Health Clinic
  Oklahoma City, Oklahoma, United States Recruiting
• Isala Zwolle
  Zwolle, Overijssel, Netherlands Recruiting
• Tulane University
  New Orleans, Louisiana, United States Not yet recruiting

Study contacts

• Study coordinator: Yosef Safi Harb, CEO
• Email: yosef@happitech.com
• Phone: +31 (0) 681885565

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.