Atrial Fibrillation Clinical Trial
— WARNOfficial title:
Validation of a Photoplethysmography-Based Algorithm for Detection of Atrial Fibrillation Via a Wearable Device - WHOOP Abnormal Rhythm Notification
NCT number | NCT05809362 |
Other study ID # | 2000031382 |
Secondary ID | |
Status | Completed |
Phase | |
First received | |
Last updated | |
Start date | April 10, 2023 |
Est. completion date | January 25, 2024 |
Verified date | April 2024 |
Source | Yale University |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
The purpose of this protocol is to assess the sensitivity and specificity of a photoplethysmography (PPG)-based algorithm for the detection of atrial fibrillation as compared to a gold-standard assessment (wearable ECG patch) among a population of individuals with known atrial fibrillation and without known atrial fibrillation over a 7-day study period.
Status | Completed |
Enrollment | 653 |
Est. completion date | January 25, 2024 |
Est. primary completion date | January 25, 2024 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 22 Years and older |
Eligibility | Inclusion Criteria: - Age >= 22 years - Known diagnosis of atrial fibrillation OR no history of arrhythmia as documented in the patient medical record - Seen in a Yale New Haven Hospital-associated Primary Care or Cardiology Clinic - Cell phone (IOS 15.0 or greater or Android 10 or greater) with an active data plan and willing to install the WHOOP Mobile Application software - Full-time US resident - Able to read, understand, and provide written informed consent in English - Willing and able to participate in the study procedures as described in the consent form - Able to communicate effectively with and follow instructions from the study staff Exclusion Criteria: - Pre-existing WHOOP user with active account - Has implantable cardiac device (e.g., pacemaker, ICD, LVAD) - Solid organ transplant - Sensitivity or allergy to ECG patch or skin glue - Unwilling to wear WHOOP 4.0 strap for one week - Unwilling to wear BioTel (ECG patch) ePatch for one week - WHOOP strap should be the only wearable on the arm. Individuals unwilling to adhere to the proper usage of the WHOOP strap will be excluded. - Unwilling to install the WHOOP Mobile Application software - Unable to provide informed consent - Non-English speaking (as the WHOOP Mobile Application software is English only) - Known sensitivity to medical adhesives, isopropyl alcohol, watch bands, or electrocardiogram (ECG) electrodes including known allergy or sensitivity to polyamide, polyester, or elastane bands primarily used in wrist worn fitness devices - Symptomatic (or active) allergic skin reactions - Significant tremor that prevents the subject from being able to hold still. - Acute myocardial infarction (MI) within 90 days of screening or other cardiovascular disease that, in the opinion of the investigator, increases the risk to the subject or renders data uninterpretable. - Pregnant women: Women who report being pregnant at the time of study participation. - Subjects taking rhythm control drugs including amiodarone, dronedarone, dofetilide, sotalol, flecainide, ibutilide, lidocaine, procainamide, propafenone, quinidine, tocainide. |
Country | Name | City | State |
---|---|---|---|
United States | Yale University | New Haven | Connecticut |
Lead Sponsor | Collaborator |
---|---|
Yale University | WHOOP Inc., ZS Associates, Inc. |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Sensitivity of the PPG-based WHOOP ANF algorithm for detection of atrial fibrillation | Sensitivity is defined as the True Positives/(True Positives + False Negatives). A "true" atrial fibrillation reading will have an ECG patch reading consistent with sustained atrial fibrillation for at least 5 continuous minutes. A WHOOP ANF diagnosis of atrial fibrillation is defined as "atrial fibrillations" being detected using the internal algorithm. A true positive is defined as the count of individuals who have at least 1 window labelled as Afib by WHOOP ANF and which has 5+ minutes of continuous Afib as determined by the BioTel recording and confirmed by tachogram adjudication. A false negative is defined as individuals who do not have any windows labelled by WHOOP-ANF as having Afib but at least one window has 5+ minutes of continuous Afib as determined by the BioTel recording. | 7 days of continuous wear of the WHOOP 4.0 Strap and BioTel ePatch immediately post enrollment | |
Primary | Specificity of the PPG-based WHOOP ANF algorithm for detection of atrial fibrillation | Specificity is defined as the True Negatives/(True Negatives + False Positives). A "true" atrial fibrillation reading will have an ECG patch reading consistent with sustained atrial fibrillation for at least 5 continuous minutes. A WHOOP ANF diagnosis of atrial fibrillation is defined as "atrial fibrillations" being detected using the internal algorithm. A true negative is defined as the count of individuals who do not have any windows labelled by WHOOP ANF as having Afib and none of these windows contain 5+ minutes of continuous Afib as determined by the BioTel recording. A false positive is defined as individuals who have windows labelled as Afib by WHOOP ANF but none of these windows contain 5 minutes or greater of continuous Afib as determined by BioTel recording or have 5+ minutes of continuous Afib as determined by BioTel recording but none can be verified by tachogram adjudication. | 7 days of continuous wear of the WHOOP 4.0 Strap and BioTel ePatch immediately post enrollment | |
Secondary | Concordance between WHOOP ANF and BioTel ePatch via epoch assessment | Comparison of each epoch by both WHOOP ANF and the BioTel ePatch for concordance using the following definitions: True Positive: An epoch detected by WHOOP ANF as "atrial fibrillation" that has >=5 mins of AFib as detected by the ECG patch. True Negative: An epoch that is NOT labelled as "atrial fibrillation" by the WHOOP ANF and has < 5 mins of AFib as detected by the ECG patch. Specificity of the algorithm on the epoch level: True Negative/(True Negatives + False Positives). Sensitivity of the algorithm on the epoch level: True Positives / (True Positives + False Negatives). Positive predictive value of the algorithm on the epoch level: True Positives / (True Positives + False Positives). Negative predictive value of the algorithm on the epoch level: True Negatives / (True Negatives + False Negatives). | 7 days of continuous wear of the WHOOP 4.0 Strap and BioTel ePatch immediately post enrollment |
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