Clinical trials
Cardiac clinical trials
Below are recruiting cardiac clinical trials, each written for real people, not researchers. We’re tracking 1,308 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04493996Recruiting
Cognitive training before heart surgery to protect memory
This trial tests whether brain-focused cognitive training before elective heart surgery can help reduce memory and thinking problems afterward. If you qualify, you may do language-based thinking exercises and complete short brain tests around the time of surgery.
Bad NauheimAges 18 years+ - NCT04493970Recruiting
Study tests a CPR training app for high school students
This trial looks at whether using a required CPR training approach (through instruction and an app) improves learning among high school students. You may be asked to complete a short survey to help researchers understand how well the training is working.
Overland Park, KansasAges 12–25 - NCT04520126Recruiting
Olive extract for blood vessel and heart function after heart procedures
This trial tests whether an olive extract supplement (Olivomed) improves how your blood vessels, heart, and circulation work. It focuses on people with stable or recently treated coronary heart disease and certain cholesterol patterns.
Athens, AtticaAges 18–70 - NCT04521790Recruiting
Biopsy-guided treatment for suspected inflammation of the heart
This study looks at people 18 and older with suspected myocarditis (inflammation of the heart). It uses an inner-heart biopsy and tailored treatment based on the likely cause to improve diagnosis and care, especially for people with different heart rhythm or non-rhythm symptoms.
Milan, MilanoAges 18 years+ - NCT04535349Recruiting
Imaging heart uptake of bone tracer in ATTR amyloidosis
This study uses special imaging tracers to see how much they build up in the heart in people with cardiac transthyretin (ATTR) amyloidosis. It may help researchers better measure disease activity and understand who benefits from treatments like tafamidis.
CaenAges 18–100 - NCT04576130Recruiting
ICD study after cardiac arrest from an abnormal heart rhythm
This study looks at an implantable defibrillator (ICD) strategy in people who survived a cardiac arrest caused by an abnormal rhythm (ventricular fibrillation or ventricular tachycardia). It aims to reduce the risk of another dangerous rhythm after the blocked heart arteries are fully treated.
CopenhagenAges 18 years+ - NCT04595630Recruiting
Testing heart blood markers to spot early bypass blockage
This study checks whether heart blood tests can predict early blockage of a coronary bypass graft soon after bypass surgery. It may help doctors identify patients at higher risk sooner so they can monitor or treat problems earlier.
ZagrebAges 18 years+ - NCT04644094Recruiting
Dexamethasone for heart function after very early birth
This study looks at how giving a steroid medicine (dexamethasone) after very early birth affects the baby’s heart function. It may help doctors better understand risks and benefits for babies who need treatment for serious lung problems.
Montreal, QuebecAges 1 minute+ - NCT04672551Recruiting
EMDR therapy for PTSD after a heart attack
This trial studies whether EMDR (a structured therapy that helps process distressing memories) can reduce PTSD symptoms in people who developed PTSD after a cardiac event. It may help you feel less overwhelmed by memories and stress related to the heart event.
ZurichAges 18–70 - NCT04690660Recruiting
Study of high blood pressure after pregnancy
This study follows people who had high blood pressure during pregnancy and/or in the first two weeks after delivery. The goal is to better understand postpartum hypertension so care can be improved for mothers at higher risk.
BaselAges 18 years+ - NCT04707794Recruiting
Preventing confusion after non-heart surgery in older adults
This study looks at how often older adults develop sudden confusion (delirium) after non-heart operations under general anesthesia. It may help doctors better predict who is at risk and improve care after surgery.
New Delhi, National Capital Territory of DelhiAges 65 years+ - NCT04713657RecruitingPhase 1
Beta-blocker study for heart muscle function in young babies
This trial tests whether a beta-blocker called propranolol can improve how well heart muscle cells work in very young babies with certain congenital heart conditions. It mainly looks at safety and how the medicine affects the heart, which could help guide future treatments.
New York, New YorkAges 4 weeks–2 months - NCT04720690Recruiting
Monitoring body water and blood flow in newborns
This study tests how well simple, harmless sensors and cuff checks work to monitor circulation and body water in newborns. It may help clinicians understand what “normal” looks like in both term and preterm babies, including some smaller babies.
LondonAges Up to 6 months - NCT04750616RecruitingPhase 2
NAD+ for heart injury prevention around non-emergency surgery
This Phase 2 trial studies whether adding NAD+ can reduce heart muscle injury around scheduled heart surgery. It may help protect the heart (and possibly kidneys) in people considered higher risk for complications.
San Francisco, CaliforniaAges 18 years+ - NCT04776824Recruiting
Swiss registry for people with amyloidosis and possible heart involvement
This trial is a registry that collects health information from people with amyloidosis, including cases where the heart may be involved. Sharing your medical details can help researchers learn how this condition affects patients and may guide future care.
BaselAges 18 years+ - NCT04808401Recruiting
Testing how different oxygen levels affect surgery outcomes
This trial studies whether giving higher or lower oxygen during general anesthesia changes heart and lung outcomes after planned (non-emergency) non-heart surgery. It may help doctors choose safer oxygen settings during surgery for people at higher risk for heart problems.
BernAges 18 years+ - NCT04823663Recruiting
SOCRATES heart rhythm device study registry
This study keeps a registry (a structured record) of people who get certain heart rhythm or heart device procedures using specific Boston Scientific products. The goal is to track outcomes and help improve how these devices are used in real-world care.
JetteAges Any age - NCT04833751Recruiting
Study of heart and brain monitoring around heart surgery anesthesia
This study collects heart and brain signal information before and during anesthesia for people having cardiovascular surgery or procedures. The goal is to better understand risk and outcomes, and to improve how anesthesia is assessed.
SeoulAges 19 years+ - NCT04844944Recruiting
Heart registry for adults with heart failure, CAD, or atrial fibrillation
This is a hospital-based study that collects standardized information about adults with specific heart conditions—heart failure, coronary artery disease, or atrial fibrillation. It may help doctors and researchers better understand these diseases and improve future care.
BerlinAges 18 years+ - NCT04856059Recruiting
MRI study for early heart changes in Fabry disease
This study looks at early structural and tissue changes in the heart using a special type of MRI scan in adults with Fabry disease. It may help doctors understand changes earlier and better track heart involvement over time.
Toronto, OntarioAges 18 years+ - NCT04882488Recruiting
Testing heart scan measurements in severe aortic valve narrowing
This trial compares two pressure-based measurements of blood flow in the coronary arteries with a PET heart scan in people with severe aortic valve stenosis. It may help doctors choose the most accurate way to assess blood flow and guide care during valve treatment.
Bad Oeynhausen, North Rhine-WestphaliaAges 65 years+ - NCT04913649RecruitingPhase 4
IV iron for anemia after heart surgery in older adults
This trial tests whether giving iron through a vein after heart surgery helps treat postoperative anemia (low red blood cells) in people age 70 and older. It may improve recovery by correcting low iron levels after surgery.
BredaAges 70 years+ - NCT04913727Recruiting
Testing heart scan predictions after mitral valve repair
This trial studies severe secondary mitral valve leaking and uses heart imaging to predict how well the heart and symptoms improve after a less-invasive valve procedure. It may help doctors better forecast who benefits most from this repair.
BernAges 18 years+ - NCT04915261RecruitingPhase 4
Lenient versus strict instructions after heart device surgery
This trial compares two styles of “post-surgery instructions” after implantation of a new heart device lead. It may help determine which approach is better for patients’ recovery and safety after the procedure.
Ottawa, OntarioAges Any age
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Common questions
- Are there clinical trials for cardiac?
- Yes. Clin2 currently lists 1,308 recruiting cardiac studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a cardiac trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a cardiac trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
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.