Can treating sleep apnea help control heart rhythm?
NCT ID NCT06263608
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether a structured program to find and treat obstructive sleep apnea can reduce the amount of time people with atrial fibrillation have an irregular heartbeat. About 209 adults with AF will use a home sleep test device and a Fitbit smartwatch to track their heart rhythm. If sleep apnea is found, they will get standard treatment like CPAP, and their heart rhythm will be monitored for three months before and after treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 209 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2024
- Expected to finish
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Feb 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients in whom AF (paroxysmal or persistent) is diagnosed with a 12-lead ECG * Patients who experience symptoms of their AF (mEHRA ≥ 2a) * Older than 18 years * Owning a smartphone compatible with Fitbit and FibriCheck applications (i.e. recent versions of Apple iOS or Android drivers) * Ability to sign the informed consent Exclusion Criteria: * Patients diagnosed with permanent AF or only atrial flutter * Prior/recent polysomnography evaluation * Prior/active CPAP/BiPAP/ASV treatment * Cognitive impairment * Inability to speak or fully understand Dutch * Pacemaker-dependent heart rhythm
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Jessa Hospital
RECRUITINGHasselt, Belgium
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University Hospital of Antwerp
RECRUITINGEdegem, Belgium
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