Plain-English translation of NCT03611816 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Stroke research guide →This is a research study that builds a biological database—essentially a collection of blood samples and genetic information—from different groups of people. Researchers want to understand why some people develop atrial fibrillation (an irregular heartbeat) and why it sometimes leads to stroke. By studying the genes and blood samples from people with these conditions, as well as from healthy older adults, scientists hope to discover new targets for better treatments.
Even though doctors have studied heart rhythm problems for nearly 100 years, there is still much to learn about why they happen and how to treat them better. Researchers believe genetics play a major role, and by identifying the genes involved, they may be able to develop new medicines that work more effectively for patients.
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Your participation would involve donating a blood sample that researchers will use to study your genes and look for patterns related to heart rhythm problems and stroke. Depending on which group you join, you may also have routine heart tests like an electrocardiogram (ECG) or ultrasound if you have not had them recently. The study team will collect information about your medical history. There is no long-term follow-up described; this appears to be primarily a one-time blood donation.
AI-generated summary from trial data · Jun 25, 2026 · Not medical advice
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