NCT02808260Recruiting
Predicting Development of SCAF in Device Patients
Predicting Development of Sub-Clinical Atrial Fibrillation in Device Patients
Source: ClinicalTrials.gov · Last updated 13 Jul 2026
Brief summary (registry, in English)
Atrial fibrillation (AF) often starts with short episodes of rapid irregular heartbeats that are only detected by implanted pacemakers or defibrillators. Usually people don't know that they have these episodes. Over time, these episodes can happen more often and last for longer periods. In some people, the heart eventually remains permanently in a fast irregular rhythm, known as atrial fibrillation. This condition can lead to strokes and blood clots. If physicians could detect atrial fibrillation at a very early stage they could treat people early and possibly prevent the condition from becoming permanent. People with implanted devices allow a unique opportunity to constantly monitor the heart rhythm so investigators can detect any irregularities immediately. Investigators don't know which people are at risk of developing short episodes of fast irregular heartbeats that can lead to atrial fibrillation. The purpose of this study is to find out if there are proteins or chemical changes in the blood that can predict the risk of developing atrial fibrillation. These chemical changes, also known as biomarkers, may also be able to give investigators other clues about atrial fibrillation.
- Status (registry)
- Recruiting
- Study type
- Observational
- Enrollment
- 500 (estimated)
- First submitted
- 13 Jun 2016
- Start date
- 1 Sept 2022
- Primary completion date
- Sept 2034
- Lead sponsor
- Ottawa Heart Institute Research Corporation
- Diseases
- Atrial fibrillation
- NCT number
- NCT02808260
What you commit to
- Study type: Observational
- Planned participants: 500
- From 1 Sept 2022 to the primary completion date, Sept 2034
- 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.
Prior treatment
- Participants considered by the investigator to be unsuitable for the study for the following reason: life expectancy less than 2 years due to concomitant disease
Other illness
- Congenital heart disease
Lab values
- Inherited arrhythmia syndrome, i.e. Brugada, long QT interval
Other
- Clinical atrial fibrillation documented by surface ECG (12 lead ECG, Telemetry, Holter)
- Participants who are pregnant or breast-feeding
Who the study is looking for
- Dual chamber permanent pacemaker or defibrillator implanted within previous 10 years
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| University of Ottawa Heart Institute Coordinator of this site? Confirm its status | Ottawa | Canada | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.