Clinical trials · Riverside–San Bernardino, CA
Atrial fibrillation clinical trials in Riverside–San Bernardino
We’re tracking 19 recruiting atrial fibrillation studies with a site in or near Riverside–San Bernardino — including Phase 2, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies near Riverside–San Bernardino
- 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.
Colton, CaliforniaAges 18 years+ - NCT06455098Recruiting
Pulsed field ablation for paroxysmal atrial fibrillation
This study tests a new procedure called pulsed field ablation using a special catheter to treat paroxysmal atrial fibrillation (AF), a type of heart rhythm problem that comes and goes. It may be an option for people whose AF hasn't been controlled well with medication.
Loma Linda, CaliforniaAges 18–80 - NCT05963698Recruiting
Closing off a heart pouch to prevent stroke
This study tests a procedure that seals off the left atrial appendage (a small heart pouch) to help prevent stroke in people with atrial fibrillation. You may be considered if your stroke risk is high and you are already on blood-thinner medicine.
Loma Linda, CaliforniaAges 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.
Loma Linda, CaliforniaAges 65 years+ - 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.
Loma Linda, CaliforniaAges 18 years+ - NCT07175428RecruitingPhase 2
Safety of a New Blood Thinner in AFib Patients
This study tests the safety of a new blood thinner for people with atrial fibrillation (AFib) who need long-term stroke prevention. If you qualify, the study will compare this medication to standard anticoagulation therapy.
Pomona, CaliforniaAges 18 years+ - NCT07523750Recruiting
Comparing two catheter treatments for persistent atrial fibrillation
This study compares two different catheters that use pulsed field ablation to treat a type of irregular heartbeat called persistent atrial fibrillation. The goal is to see which one works better and is safer.
Fountain Valley, CaliforniaAges 18–80 - NCT07227532Recruiting
Testing a new catheter for atrial fibrillation treatment
This study tests a new catheter system, called Varipulse, to see if it's safe and effective for treating atrial fibrillation (AF), a heart rhythm problem. People with short-lasting AF who haven't been helped by medication may be able to join.
Fountain Valley, CaliforniaAges 22 years+ - NCT07626411RecruitingPhase 3
Blood Thinner Study for Irregular Heartbeat
This study tests a new blood thinner to prevent strokes and blood clots in people with atrial fibrillation (a common heart rhythm problem). You may qualify if you have atrial fibrillation and at least one risk factor for stroke, or if you've never taken a blood thinner before.
Newport Beach, CaliforniaAges 18 years+ - NCT07430956RecruitingPhase 3
Stroke prevention in atrial fibrillation without standard blood thinners
This trial tests a new medication to prevent strokes and blood clots in people with atrial fibrillation (an irregular heartbeat) who cannot safely take standard blood thinners. The drug works by blocking a different clotting factor, which may lower bleeding risks.
Huntington Beach, CaliforniaAges 18 years+ - NCT07775976Enrolling by invitation
Whole-heart checkup with a wearable heart monitor
This study looks at how well a wearable heart monitor and special software can check the health of your whole heart and assess your risk of future heart problems. It may help doctors create more personalized care plans.
Pasadena, CaliforniaAges 18 years+ - NCT04088071Recruiting
Ablation for heart rhythm problems using a specific technology
This study looks at how well catheter ablation works for treating certain heart rhythm disorders (like atrial fibrillation or ventricular arrhythmias) using a specific brand of catheters. The aim is to gather real-world data to better understand the procedure's outcomes.
Los Angeles, CaliforniaAges 18 years+ - NCT07298473Recruiting
Redo ablation for recurrent atrial fibrillation with Sphere-9 catheter
This trial tests a new catheter and system for people who have had one previous ablation for atrial fibrillation but still have symptoms. It aims to see if a repeat procedure can safely and effectively treat recurrent episodes.
Los Angeles, CaliforniaAges 18 years+ - NCT07278869Recruiting
Study of Append system for atrial fibrillation patients
This trial tests a new device, the Append System, to close off the left atrial appendage (a small pouch in the heart) in people with atrial fibrillation. The goal is to reduce stroke risk without needing long-term blood thinners.
Los Angeles, CaliforniaAges 18 years+ - NCT06735534Recruiting
Repeat ablation for persistent atrial fibrillation with pulsed field
This trial tests a newer type of ablation (pulsed field ablation) for people with persistent atrial fibrillation who have already had one ablation. The goal is to see if it can fix the heart rhythm problem again.
Los Angeles, CaliforniaAges 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.
Los Angeles, CaliforniaAges 18 years+ - NCT03968393RecruitingPhase 4
Blood thinner to prevent stroke after stress-related irregular heartbeats
This trial tests whether taking a blood thinner can lower the risk of stroke in people who had atrial fibrillation (an irregular heartbeat) that happened temporarily around a stressful illness or surgery. It looks especially at people at higher risk for stroke after that episode.
Los Angeles, CaliforniaAges 55 years+ - 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.
Los Angeles, CaliforniaAges 22–85 - NCT06392932Recruiting
Esophageal temperature monitoring during heart ablation
This study tests a new way to monitor the temperature in your esophagus during a standard heart ablation procedure for atrial fibrillation. The goal is to see if the new catheter (Q-DOT Micro) safely heats the heart tissue without harming the esophagus.
Los Angeles, CaliforniaAges 18 years+
Hear when a new Atrial fibrillation trial opens near Riverside–San Bernardino, CA
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Atrial fibrillation trials in other cities
Where these studies are running near Riverside–San Bernardino
Institutions with a site for the recruiting atrial fibrillation studies listed above.
- Cedars-Sinai Medical Center · 6 studies
- University of Southern California · 3 studies
- Hoag Memorial Hospital Presbyterian · 2 studies
- National Institute of California Heart and Vein Specialists · 2 studies
- Profound Research LLC · 2 studies
- University of California, Los Angeles (UCLA) · 2 studies
- Anthos Investigational site 9821
- Anthos Investigative Site 1071
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 California.
Common questions
- Are there atrial fibrillation clinical trials near Riverside–San Bernardino?
- Yes. We're currently tracking 19 recruiting atrial fibrillation studies with a site near Riverside–San Bernardino, 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 Riverside–San Bernardino?
- 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 Riverside–San Bernardino to take part?
- Not necessarily. These studies have a site near Riverside–San Bernardino, 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 Riverside–San Bernardino regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.