Plain-English translation of NCT04005508 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Atrial Fibrillation research guide →This is a two-year study that follows people who have atrial fibrillation (an irregular heartbeat) and are at high risk for heart disease. Researchers want to understand whether sleep apnea—a condition where breathing stops and starts during sleep—affects heart-related events like heart attacks, strokes, or hospitalization for heart failure. The study will involve an at-home sleep test and regular check-ins to gather this information.
Many people have both atrial fibrillation and sleep apnea, but doctors currently don't routinely screen for or treat sleep apnea in patients with irregular heartbeats. No one has proven whether sleep apnea actually makes heart problems worse in these patients, so this study aims to fill that gap and potentially change how doctors care for people with both conditions.
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You will use a portable, FDA-approved device at home to record your sleep patterns overnight. You'll also provide a blood sample the morning after the sleep test so researchers can analyze metabolites (chemical markers in your blood). After that, you'll have follow-up visits every 6 months for about 2 years, where researchers will check on your health and any heart-related events. Your regular atrial fibrillation care will continue as normal with your doctor.
AI-generated summary from trial data · Jun 9, 2026 · Not medical advice
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