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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
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

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
University of Ottawa Heart Institute
Coordinator of this site? Confirm its status
OttawaCanadaRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.