Clinical trials · California
Heart failure clinical trials in California
We’re tracking 87 recruiting heart failure studies with a site in California — including Phase 1, Phase 2, Phase 2/Phase 3, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06428097RecruitingPhase 1
Thyroid hormone before heart transplant
This study tests whether giving a thyroid hormone supplement called levothyroxine before a heart transplant can help with recovery. It is for people already listed for a heart transplant who do not have thyroid problems.
San Francisco, CaliforniaAges 18 years+ - NCT07795814RecruitingPhase 2
Study of a new medicine for heart failure with preserved pumping function
This study tests an investigational medicine called EDG-15400 for people with a type of heart failure where the heart muscle is stiff and doesn't relax properly, even though the pumping function is normal. The goal is to see if the medicine improves symptoms and daily functioning.
Beverly Hills, CaliforniaAges 30–84 - NCT07460219Enrolling by invitation
Pharmacist-led heart failure medication study for VA clinics
This trial tests if pharmacists in VA regions can help adjust heart failure medications. It may improve how patients are treated.
Palo Alto, CaliforniaAges 18 years+ - NCT06183437RecruitingPhase 4
Can I stop heart meds after cancer therapy?
This trial tests whether it is safe to stop taking heart failure medications in people who developed heart weakness after cancer treatment but whose heart function has since recovered. It aims to see if stopping these drugs leads to any worsening of heart health.
Los Angeles, CaliforniaAges 18 years+ - NCT06080074RecruitingPhase 2
Emergency heart-lung machine study for children with severe heart failure
This study tests a specific heart-lung machine called Cardiohelp to help children with severe heart failure. It looks at how well the machine works and whether a blood thinner (either heparin or bivalirudin) is safer and more effective.
Palo Alto, CaliforniaAges birth–16 years - NCT06677060RecruitingPhase 3
Study of baxdrostat plus dapagliflozin for heart risk in type 2 diabetes
This study tests whether a new drug called baxdrostat, when added to the diabetes medicine dapagliflozin (Farxiga), can prevent heart failure and heart-related death in people with type 2 diabetes, high blood pressure, and existing heart or blood vessel disease. You may be able to join if you have type 2 diabetes, heart or blood vessel disease, high blood pressure, and at least one extra risk factor for heart failure.
San Diego, CaliforniaAges 40 years+ - NCT05714085RecruitingPhase 2/Phase 3
Vericiguat study for children with heart failure
This trial tests whether vericiguat helps children with chronic heart failure caused by weaker left heart pumping. It also checks safety and how the medicine behaves in the body (dose and processing).
Los Angeles, CaliforniaAges 4 weeks–17 years - NCT06360380Recruiting
Wearable device for fluid removal in heart failure
This trial tests a wearable device that removes extra fluid from your body without using the kidneys. It may help people with heart failure who still have fluid buildup despite taking high doses of water pills.
La Jolla, CaliforniaAges 21–79 - NCT06678841Recruiting
Pacing therapy for heart failure with preserved pumping ability
This study tests a new pacing approach for people with a specific type of heart failure (HFpEF) to see if it can improve symptoms and quality of life. It involves a pacemaker-like device that adjusts heart rate based on your needs.
Palo Alto, CaliforniaAges 40 years+ - NCT06898515Recruiting
Fluid removal study for acute heart failure patients
This trial tests a device designed to safely remove extra fluid from patients hospitalized with worsening heart failure. It may help those who are not responding well to standard water pills (diuretics).
Irvine, CaliforniaAges 22 years+ - NCT06033950RecruitingPhase 3
A study of finerenone for heart failure patients who can't take standard MRA drugs
This study tests whether finerenone, a new type of drug, can help people with heart failure who cannot take standard steroid-based MRAs (a kind of heart medication) because of side effects or other reasons. It aims to see if it improves symptoms and is safe for you.
Chula Vista, CaliforniaAges 18 years+ - NCT03383419RecruitingPhase 2
Hepatitis C–safe antiviral plan for heart transplant recipients
This Phase 2 trial tests giving newer hepatitis C medicines in a careful way to people getting a heart transplant who currently do not have hepatitis C in their blood. The goal is to lower hepatitis C infection risk from donated organs while keeping transplant outcomes safe.
Los Angeles, CaliforniaAges 18–90 - NCT03102125RecruitingPhase 4
Testing causes of heart transplant graft problems with scans
This study looks at why heart transplant “grafts” can start to malfunction again after transplant. If you qualify, you may undergo MRI and related heart testing to help researchers find ways to detect or understand graft dysfunction.
La Jolla, CaliforniaAges 18 years+ - NCT06217302RecruitingPhase 3
Sotagliflozin for kidney protection in type 1 diabetes
This study tests whether sotagliflozin (a pill that helps control blood sugar and protects the kidneys) can slow down kidney function decline in people with type 1 diabetes and diabetic kidney disease. You may qualify if you have had type 1 diabetes for at least 8 years, have moderate kidney damage, and are on standard treatments.
Stanford, CaliforniaAges 18–75 - NCT06150950Recruiting
Exercise rehab for Fontan failure
This trial tests if a supervised exercise program (cardiac rehabilitation) can help people who have had a Fontan procedure and are now experiencing heart failure symptoms. It aims to improve your strength, stamina, and overall well-being.
Stanford, CaliforniaAges 18 years+ - NCT07830758RecruitingPhase 1
Resmetirom for fatty liver disease with heart failure
This trial tests a drug called resmetirom for people who have both a type of fatty liver disease (MASH) and a type of heart failure (HFpEF). It aims to see if the drug can help both conditions. You may be able to join if you have both conditions and meet certain health criteria.
Oxnard, CaliforniaAges 18 years+ - NCT03523416Recruiting
Shunt device for heart failure with reduced pumping function
This trial studies a small device placed in the heart to create a passage that may help relieve pressure and improve symptoms in people with heart failure and a weak pumping function. It aims to see if the device is safe and helpful for daily life.
La Jolla, CaliforniaAges 18 years+ - 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 - NCT07730268Enrolling by invitation
Vivio at-home study for heart failure monitoring
This study tests a home monitoring device (Vivio) for people who already have a CardioMEMS implant to check if the new device can track your heart health easily at home.
Los Angeles, CaliforniaAges 21 years+ - NCT06826534Recruiting
At-home heart rehab for teens with heart failure risk
This study tests if a home-based exercise program using a Fitbit can help teens who had chemotherapy improve their heart and lung fitness. You would exercise at home, track your activity, and have monthly virtual check-ins for 6 months.
Los Angeles, CaliforniaAges birth–21 years - NCT06378632Recruiting
Heart failure monitoring app study
This study tests a smartphone app that listens to your voice to detect early signs of heart failure worsening. It aims to help you avoid hospital stays by catching problems sooner.
La Jolla, CaliforniaAges 22 years+ - NCT07207811RecruitingPhase 3
Coramitug for heart failure caused by ATTR amyloidosis
This trial tests a new medicine called Coramitug for people with heart failure due to ATTR amyloidosis, a condition where abnormal proteins build up in the heart. The study aims to see if Coramitug can improve heart function and quality of life.
Orange, 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+ - NCT06877169Recruiting
Staged heart and kidney transplant study
This study compares two ways of doing a combined heart and kidney transplant. It looks at doing the surgeries in separate stages instead of all at once, to see if that is safer or works better.
Los Angeles, CaliforniaAges 18 years+
Heart failure trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting heart failure studies listed above.
- Cedars-Sinai Medical Center · 3 studies
- University of California San Diego Health · 3 studies
- University of California, San Francisco · 3 studies
- Stanford University · 2 studies
- University of California, Irvine · 2 studies
- Cardurion Investigative Site
- Cedars-Sinai Medical Center - Samuel Oschin Comprehensive Cancer Institute
- Children's Hospital Los Angeles
What taking part in a heart failure 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 trials in other states
Common questions
- Are there heart failure clinical trials in California?
- Yes. We're currently tracking 87 recruiting heart failure 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 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 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 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.