Clinical trials · San Francisco, CA
Atrial fibrillation clinical trials in San Francisco
We’re tracking 21 recruiting atrial fibrillation studies with a site in or near San Francisco — including Phase 2, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies near San Francisco
- NCT04404465Enrolling by invitation
Test blood/heart signals to understand atrial fibrillation changes
This study looks at early changes in the heart related to atrial fibrillation (AF) using health data and biomarkers. It aims to find better ways to predict or understand AF, especially around procedures like ablation or cardioversion.
San Francisco, CaliforniaAges 18 years+ - NCT05504356Recruiting
Study to improve atrial fibrillation ablation and new therapies
This study looks at what results from atrial fibrillation ablation (a heart rhythm procedure) and newer related therapies. If you recently had the procedure—or are scheduled for it soon—you may use an app and website to share information that helps researchers compare outcomes and improve care.
San Francisco, CaliforniaAges 18 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.
San Francisco, CaliforniaAges 18 years+ - NCT07625215RecruitingPhase 2
Testing BAY 3670549 for Recent-Onset Atrial Fibrillation
This study tests a new drug called BAY 3670549 to see if it can help convert atrial fibrillation (an irregular heartbeat) back to normal rhythm. You'll receive the study drug or a placebo along with a procedure to restore your heart's normal rhythm, and researchers will monitor how well it works and how safe it is.
San Francisco, CaliforniaAges 18–85 - NCT07220525Recruiting
Sleep and heart rhythm study for people with sleep apnea device
This study looks at how turning off your sleep apnea device for short periods affects your heart rhythm, especially if you have a condition like atrial fibrillation. It may help understand the link between sleep and heart health.
San Francisco, CaliforniaAges 21 years+ - NCT06995391Recruiting
Alcohol reduction app for atrial fibrillation
This trial tests if a smartphone app can help people with atrial fibrillation reduce or stop drinking alcohol. The goal is to see if cutting down on alcohol makes AF symptoms less severe or occur less often.
San Francisco, CaliforniaAges 21 years+ - NCT06335082Enrolling by invitation
Study of Farapulse ablation for atrial fibrillation
This registry is collecting information to see how well the Farapulse PFA system works and how safe it is for treating atrial fibrillation (AF), a common heart rhythm problem. If you are scheduled to have an ablation for AF with this system, this study will follow your progress.
San Francisco, CaliforniaAges 18 years+ - NCT06754176Recruiting
Alcohol and AFib: Avoiding vs. Allowing Drinking
This study tests whether avoiding alcohol completely for two weeks helps people with AFib have fewer episodes, compared to allowing regulated drinking. You will be randomly assigned to one of the two groups.
San Francisco, CaliforniaAges 21 years+ - NCT07405359Recruiting
Comparing ablation methods for persistent atrial fibrillation
This trial tests a newer, possibly safer way to treat persistent atrial fibrillation using pulsed field ablation. It compares standard vein isolation alone to adding extra ablation spots to improve success.
San Francisco, CaliforniaAges 18 years+ - NCT07582523Enrolling by invitation
Heart Rhythm Monitoring at Home for High Blood Pressure
This study tests whether wearing a small heart rhythm patch at home can detect irregular heartbeats in people with high blood pressure. It may help catch heart rhythm problems early before they cause symptoms.
San Francisco, CaliforniaAges 60 years+ - NCT05836987RecruitingPhase 3
Smartwatch-guided blood thinners for intermittent atrial fibrillation
This study tests whether using a smartwatch to monitor your heartbeat can safely guide when to take blood thinners. If you have intermittent atrial fibrillation, you may be able to avoid taking blood thinners when your heart rhythm is normal.
San Francisco, CaliforniaAges 22–85 - 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.
Walnut Creek, CaliforniaAges 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.
Palo Alto, 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.
Stanford, CaliforniaAges 18 years+ - NCT02997254Recruiting
Testing computer methods that analyze atrial fibrillation heart signals
This study compares different computer “analysis methods” that look at real-time heart recordings from people with atrial fibrillation. It may help improve how atrial fibrillation is evaluated during/after an ablation procedure.
Stanford, CaliforniaAges 21–90 - NCT05371405Recruiting
Using computer learning to improve care for atrial fibrillation patients
This study uses machine learning (computer pattern-finding) to better understand atrial fibrillation and guide care around the time of an ablation procedure. It may help refine how doctors treat certain AF patients based on their heart patterns.
Stanford, CaliforniaAges 22–80 - NCT03868150RecruitingPhase 4
Preventing an abnormal heart rhythm after heart surgery
This trial studies whether giving a medication (amiodarone) during and after certain heart surgeries can help prevent atrial fibrillation, an irregular heartbeat that can happen after surgery. It may help by aiming to stop this rhythm problem before it starts.
Stanford, CaliforniaAges 18 years+ - NCT05366361Recruiting
Study of persistent atrial fibrillation during heart procedures
This study looks at what happens in the heart in people with persistent atrial fibrillation when they undergo an ablation or Maze surgery. It may help doctors better understand the condition and improve future care for people needing these procedures.
Stanford, CaliforniaAges 22–80 - 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.
Fremont, CaliforniaAges 18 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.
Fremont, 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.
Fremont, CaliforniaAges 18 years+
Hear when a new Atrial fibrillation trial opens near San Francisco, CA
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Atrial fibrillation trials in other cities
Where these studies are running near San Francisco
Institutions with a site for the recruiting atrial fibrillation studies listed above.
- Stanford University · 6 studies
- University of California, San Francisco · 4 studies
- Mission Cardiovascular Research Institute · 3 studies
- UCSF Medical Center · 2 studies
- UCSF Medical Center at Parnassus · 2 studies
- Eden Medical Center, Castro Valley
- Kaiser Permanente
- Kaiser Permanente Redwood City Medical Center, Redwood City, CA
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 San Francisco?
- Yes. We're currently tracking 21 recruiting atrial fibrillation studies with a site near San Francisco, 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 San Francisco?
- 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 San Francisco to take part?
- Not necessarily. These studies have a site near San Francisco, 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 San Francisco regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.