Clinical trials · St. Louis, MO
Atrial fibrillation clinical trials in St. Louis
We’re tracking 8 recruiting atrial fibrillation studies with a site in or near St. Louis — including Phase 3 studies, each written for real people, not researchers.
Recruiting studies near St. Louis
- NCT05836987RecruitingPhase 3
Smartwatch monitoring trial to guide blood thinner use for AF
This study tests whether continuous heart-rhythm monitoring with a smartwatch can better guide treatment for atrial fibrillation (AF) while you stay on a blood thinner. The goal is to improve safety and reduce stroke risk by catching AF patterns more closely.
St Louis, MissouriAges 22–85 - NCT07122947Recruiting
Apple Watch to detect AFib after heart surgery
This study tests if an Apple Watch can help detect when atrial fibrillation (an irregular heartbeat) comes back after heart surgery. You'll wear an Apple Watch and a small skin patch (Zio Patch) to track your heart rhythm.
St Louis, MissouriAges 22 years+ - NCT03907046RecruitingPhase 3
Blood thinner study to prevent stroke after brain bleed
This Phase 3 study tests whether a blood thinner (apixaban) can help prevent another stroke and support recovery after you’ve had a brain bleed. You would be assigned to a treatment group, and the study checks safety and whether strokes can be reduced without causing dangerous bleeding.
St Louis, MissouriAges 18 years+ - NCT04045665RecruitingPhase 3
Blood thinner vs usual care for new heart rhythm after bypass surgery
This trial tests whether using a blood thinner in people with new, temporary atrial fibrillation after CABG (heart bypass surgery) can reduce harmful outcomes compared with standard treatment. It may help prevent stroke or other complications if your rhythm problem fits the trial’s timing and risk profile.
St Louis, MissouriAges 18 years+ - NCT03546374Recruiting
Stop a common heart rhythm with surgery add-on therapy
This study looks at whether an added heart device approach around the time of planned open-heart surgery can help treat non-paroxysmal atrial fibrillation (AF), a long-lasting irregular heartbeat. It may help lower ongoing AF burden in people who also need non-emergency heart surgery.
St Louis, MissouriAges 18 years+ - NCT05014802Recruiting
MRI scans before heart surgery to predict post-surgery atrial fibrillation
This study uses an MRI scan before heart surgery to look for heart scarring that may predict who will develop atrial fibrillation afterward. Knowing the risk ahead of time could help doctors monitor you more closely and plan prevention.
St Louis, MissouriAges 40–120 - NCT05111015Recruiting
Ablation tracking study for people with atrial fibrillation
This study tracks results after a heart ablation procedure used to treat atrial fibrillation (an irregular heart rhythm). You may be asked to help by consenting and following the study plan so the researchers can better understand what happens after ablations.
St Louis, MissouriAges 18 years+ - NCT05712200RecruitingPhase 3
Abelacimab for atrial fibrillation when blood thinners aren’t suitable
This Phase 3 study tests whether abelacimab can prevent stroke and other blood-clot problems in people with atrial fibrillation (or atrial flutter) who cannot safely take usual mouth blood thinners. It also looks at safety, especially bleeding risk.
St Louis, MissouriAges 65 years+
Hear when a new Atrial fibrillation trial opens near St. Louis, MO
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Atrial fibrillation trials in other cities
Where these studies are running near St. Louis
Institutions with a site for the recruiting atrial fibrillation studies listed above.
- Washington University in St. Louis · 6 studies
- Anthos Investigational Site 9825
- Anthos Investigational Site 9966
- Barnes-Jewish Hospital
- Mercy Hospital Saint Louis
- Mercy Hospital St. Louis
What taking part in a atrial fibrillation study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Looking wider? See all recruiting atrial fibrillation studies in Missouri.
Common questions
- Are there atrial fibrillation clinical trials near St. Louis?
- Yes. We're currently tracking 8 recruiting atrial fibrillation studies with a site near St. Louis, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a atrial fibrillation study near St. Louis?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in St. Louis to take part?
- Not necessarily. These studies have a site near St. Louis, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a atrial fibrillation trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New atrial fibrillation studies open near St. Louis regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.