Clinical trials · California
Heart Failure With Reduced Ejection Fraction clinical trials in California
We’re tracking 15 recruiting heart failure with reduced ejection fraction studies with a site in California — including Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06736574RecruitingPhase 3
Study of omecamtiv mecarbil for chronic heart failure with very weak heart pump
This study tests an investigational medicine (omecamtiv mecarbil) for people with chronic heart failure and very low pumping strength. It looks at whether the drug can help prevent heart failure events or the need for stronger treatments.
Beverly Hills, CaliforniaAges 18–85 - NCT07750873RecruitingPhase 2
Study of an investigational medicine for heart failure with reduced pumping function
This trial tests an investigational medicine called CRD-4730 (taken as a pill) to see if it can improve heart function and symptoms in people with heart failure and a reduced pumping ability. It may help you feel better and slow the progression of your condition.
Pasadena, CaliforniaAges 18–85 - NCT04592445Recruiting
Nerve ablation for right-sided symptoms in HFpEF heart failure
This trial tests a procedure to “turn off” the right greater splanchnic nerve to improve symptoms in people with HFpEF (heart failure with preserved pumping function). If successful, it may reduce shortness of breath and fluid congestion in daily life.
La Jolla, CaliforniaAges 40 years+ - NCT07335510Recruiting
Baroreflex therapy for heart failure patients
This trial tests a device that stimulates a nerve in your neck to help your heart pump better. It is for people with heart failure and a weak heart pump who still have symptoms despite taking medications.
San Francisco, CaliforniaAges 18 years+ - NCT07467668Recruiting
Iron infusion for heart failure patients with low iron
This trial tests whether giving intravenous iron to adults hospitalized with heart failure and low iron levels helps improve their health. You may be eligible if you have heart failure with reduced pumping function and low iron stores.
Pleasanton, CaliforniaAges 18 years+ - NCT04703842RecruitingPhase 1/Phase 2
Study drug effect on heart muscle calcium in advanced heart failure
This trial tests a treatment intended to improve how heart muscle cells handle calcium, which may help heart failure symptoms and heart function. It is mainly for people with advanced heart failure and a low pumping strength of the heart.
San Diego, CaliforniaAges 18–80 - NCT06526988Recruiting
Heart failure medication optimization study for clinicians and patients
This study tests tools to help doctors and patients work together to start or adjust heart failure medicines. You may qualify if your heart's pumping strength is low and you are missing certain recommended medications.
Walnut Creek, CaliforniaAges 18 years+ - NCT05064709Recruiting
Test device for heart failure symptoms in some patients
This study tests whether a heart-related device called CCM can improve symptoms and daily function in people with heart failure and a moderately reduced pumping strength. It may help if you’ve had recent heart-failure-related hospital care or urgent treatment and your heart and overall health fit the study limits.
Concord, CaliforniaAges 18 years+ - NCT05650658Recruiting
Compare two heart pacing options in people with weak heart function
This trial compares two types of “left-side” heart pacing to see which one works better in people with weak heart pumping. It may help guide the best pacing choice for improving heart function and symptoms.
La Jolla, CaliforniaAges 18 years+ - NCT06699056Recruiting
AI heart monitor study for ejection fraction
This study uses an AI-powered wearable monitor to check how well your heart pumps blood (ejection fraction) from a simple EKG recording. It may help doctors quickly assess heart function without extra tests.
Orange, CaliforniaAges 18 years+ - NCT06008197RecruitingPhase 3
A study of finerenone for hospitalized heart failure patients
This trial tests a medication called finerenone to see if it helps people hospitalized for heart failure live longer and have fewer heart-related problems. It may be an option for those with a certain type of heart failure where the heart's pumping strength is mildly reduced or normal.
West Hills, CaliforniaAges 18 years+ - NCT07084142Recruiting
Digital aid for ICD decisions
This study is developing a digital tool to help people 70 and older with heart failure decide whether an ICD (a device that prevents dangerous heart rhythms) is right for them. Participants will help test and improve this tool.
San Francisco, CaliforniaAges 60 years+ - NCT07037459RecruitingPhase 3
A study of a new drug for heart failure with obesity
This trial tests a medication called maridebart cafraglutide for people with heart failure (where the heart doesn't pump as well as it should) and obesity. The goal is to see if it can help improve symptoms and outcomes.
Orange, CaliforniaAges 18–99 - NCT06361524Enrolling by invitation
Gut bacteria study in chronic heart failure
This study looks at the bacteria in your gut (your 'gut microbiome') and how it relates to chronic heart failure. It may help doctors understand why some people with heart failure do better than others and could lead to better treatments in the future.
Stanford, CaliforniaAges 18–75 - NCT05441696Enrolling by invitation
Check a noninvasive heart failure blood-flow measurement in hospital
This study tests a device that measures blood flow and pressure in a noninvasive way (using sensors on the body) for people admitted with worsening heart failure. It may help doctors monitor heart failure and potentially lower the chance of coming back to the hospital.
Palo Alto, CaliforniaAges 18 years+
Heart Failure With Reduced Ejection Fraction trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting heart failure with reduced ejection fraction studies listed above.
- University of California, San Francisco · 5 studies
- San Diego Cardiac Center · 3 studies
- University of California San Diego Health · 3 studies
- National Heart Institute · 2 studies
- University of California, Davis Medical Center · 2 studies
- University of California, Irvine Medical Center / UC Irvine Health · 2 studies
- University of Southern California · 2 studies
- Valley Clinical Trials · 2 studies
What taking part in a heart failure with reduced ejection fraction 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.
Heart Failure With Reduced Ejection Fraction trials in other states
Common questions
- Are there heart failure with reduced ejection fraction clinical trials in California?
- Yes. We're currently tracking 15 recruiting heart failure with reduced ejection fraction studies with a site in California, 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 heart failure with reduced ejection fraction study in California?
- 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 California to take part?
- Not necessarily. These studies have a site in California, 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 heart failure with reduced ejection fraction 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 heart failure with reduced ejection fraction studies open in California regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.