DEFINE AFib (Atrial Fibrillation)
Public ClinicalTrials.gov record NCT04926857. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
DEFINE AFib Atrial Fibrillation - Development of a Predictive Model for Future Health Care Utilization From Measurements Collected From an Implantable Cardiac Monitor.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
DEFINE AFib is a prospective, observational, post-market clinical study administered to patients via the Medtronic Discovery app platform. This study will enroll approximately 5,000 patients in the United States who have a Reveal LINQ or LINQ II ICM (or future market-released LINQ devices) and an Apple® iPhone® with iOS version 13 or higher. Interested participants will be screened through the Medtronic Discovery app and those eligible will complete an app-based informed consent. Participants will receive health-focused and quality of life surveys at variable timepoints. DEFINE AFib will measure healthcare interactions using administered surveys to identify said interactions. The Medtronic Discovery app will provide participants with a summary of their ICM data. Participants will be followed up to 5 years or to the end of their ICM service life.
Study identification
- NCT ID
- NCT04926857
- Recruitment status
- Terminated
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 973 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 22 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 21, 2021 (Actual)
- Primary completion
- Jan 25, 2024 (Actual)
- Completion
- Jan 25, 2024 (Actual)
- Last update posted
- Aug 1, 2025
2021 – 2024
United States locations
- U.S. sites
- 26
- U.S. states
- 15
- U.S. cities
- 26
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Saint Joseph Heritage Hospital | Mission Viejo | California | 92691 | — |
| Desert Heart Rhythm Consultants | Palm Springs | California | 92262 | — |
| Florida Electrophysiology Associates | Atlantis | Florida | 33462-6614 | — |
| Cardiac Arrhythmia Service | Boca Raton | Florida | 33432 | — |
| University of Florida Health Shands Hospital | Gainesville | Florida | 32610 | — |
| Northwestern University | Chicago | Illinois | 60611 | — |
| University of Kansas Medical Center | Kansas City | Kansas | 66160 | — |
| HCA Healthcare | Overland Park | Kansas | 66211 | — |
| Stormont Vail Health Cotton O'Neil Clinical Research Center | Topeka | Kansas | 66606 | — |
| Norton Heart Specialists | Louisville | Kentucky | 40241 | — |
| Massachusetts General Hospital | Boston | Massachusetts | 02114 | — |
| Jackson Heart Clinic | Jackson | Mississippi | 39216 | — |
| Cooper University Hospital | Camden | New Jersey | 08103 | — |
| The Valley Hospital | Ridgewood | New Jersey | 07450-2726 | — |
| New York Presbyterian Brooklyn Methodist Hospital | Brooklyn | New York | 11215 | — |
| Huntington Hospital | Huntington | New York | 11743 | — |
| NYU Langone Hospital Long Island | Mineola | New York | 11501 | — |
| White Plains Hospital Medical Center | White Plains | New York | 10601 | — |
| Duke University Medical Center | Durham | North Carolina | 27710 | — |
| Cone Health | Greensboro | North Carolina | 27401 | — |
| Oklahoma Heart Hospital Research Foundation | Oklahoma City | Oklahoma | 73120 | — |
| St. Luke's Cardiology Associates | Bethlehem | Pennsylvania | 18018 | — |
| Hospital of the University of Pennsylvania | Philadelphia | Pennsylvania | 19104 | — |
| Stern Cardiovascular Foundation | Germantown | Tennessee | 38138 | — |
| Ascension Seton Heart Institute Clinical Research | Austin | Texas | 78705 | — |
| PeaceHealth Saint Joseph Medical Center | Bellingham | Washington | 98225 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04926857, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Aug 1, 2025 · Synced Oct 23, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT04926857 live on ClinicalTrials.gov.