Clinical trials
Cardiac clinical trials
Below are recruiting cardiac clinical trials, each written for real people, not researchers. We’re tracking 1,291 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05377216RecruitingEarly Phase 1
Testing nerve stimulation effects during heart ablation
This trial studies how a type of nerve stimulation affects the heart’s electrical signals during a procedure to treat a dangerous fast heart rhythm (ventricular tachycardia). It may help doctors better understand safety and effects during planned ablation.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05935007Recruiting
Study for people with an Aveir DR leadless pacemaker
This study uses your medical records from Medicare to learn how the Aveir DR leadless pacemaker performs in everyday life after it’s implanted. It mainly helps researchers and doctors understand real-world outcomes and care needs.
Sylmar, CaliforniaAges 18 years+ - NCT05934409Recruiting
Measuring body-fat storage after bariatric surgery
This study looks at how body fat is stored and how that may relate to early improvements in diabetes and heart/liver health after bariatric surgery. It may help researchers understand why some people recover faster and which body changes matter.
Sherbrooke, QuebecAges 18–65 - NCT05941013Recruiting
Ultrasound-check breathing tube during heart procedures
This feasibility study tests a special breathing tube that can be checked with ultrasound during a planned heart catheter procedure under general anesthesia. It may help doctors confirm the tube is in the right place more easily and safely, before and after the procedure.
Ann Arbor, MichiganAges 6 months–3.5 years - NCT05915260Enrolling by invitation
Heart MRI study in adults with type 2 diabetes
This study uses a heart scan (MRI) to learn more about how the heart is affected in people with type 2 diabetes. It may help researchers better understand changes in the heart over time and who might benefit from future care.
SlagelseAges 18–80 - NCT05888974Recruiting
Test of heart ultrasound to guide fluids in shock
This study checks whether a specific heart ultrasound measurement can help doctors decide if you will benefit from extra fluid during early emergency treatment for shock. It may help avoid unnecessary fluids and support faster, safer decision-making.
NîmesAges 18 years+ - NCT05851859Recruiting
Breathing training for long COVID symptoms
This study tests whether a structured breathing control technique can improve symptoms of long COVID. It may help by training how you breathe, but you must meet specific health and medication criteria to join.
Saint-DenisAges 18 years+ - NCT05851391RecruitingPhase 2
Test drug treatment to stop hard-to-control seizures after cardiac arrest
This Phase 2 trial tests a medication strategy to stop “refractory status epilepticus,” a severe seizure condition that can happen after a cardiac arrest. It may help by reducing ongoing seizure activity after return of circulation in the ICU.
San Francisco, CaliforniaAges 18 years+ - NCT05812755RecruitingPhase 4
Study drug effects on blood vessels and organs in heart surgery
This Phase 4 trial studies vericiguat-like stimulation (a type of medicine that affects blood-vessel signaling) around the time of planned open-heart surgery. It aims to see whether this can change blood-vessel “reactivity” and reduce injury to organs during and after surgery.
Nashville, TennesseeAges 18 years+ - NCT05814146Recruiting
Testing a dialysis fluid change for kidney failure
This trial studies whether using a dialysis fluid with a different bicarbonate level can help people with long-term kidney failure treated with regular hemodialysis. If you qualify, you may be assigned to receive a specific bicarbonate concentration during your dialysis sessions.
Boston, MassachusettsAges 18–120 - NCT05824260Recruiting
Study of risk factors for complications after major surgery
This study looks at patients who've had major abdominal, bone, or blood-vessel surgery to understand what factors make some people more likely to have complications afterward. It analyzes information already collected from hospitals to help doctors better predict and prevent problems.
AmiensAges 18 years+ - NCT05841056RecruitingPhase 3
Short-term heart rhythm medication after heart surgery
This study tests whether giving a short course of a medication called amiodarone after heart surgery helps prevent or control new irregular heartbeats (atrial fibrillation) and helps you leave the hospital sooner.
Hamilton, OntarioAges 18 years+ - NCT04289142RecruitingPhase 4
Testing memory effects of dexmedetomidine during heart surgery
This study looks at how a sleep medicine called dexmedetomidine affects thinking and memory after heart surgery. It compares cognitive outcomes over time to see if this sedation choice changes long-term brain function.
Vancouver, British ColumbiaAges 60 years+ - NCT05775939Recruiting
PET/CT scan study to track heart damage from cancer radiation
This study uses a special scan (PET/CT) to look for early heart (cardiac) injury caused by radiation treatment for lung or esophageal cancer. If you may be at higher heart risk from your planned radiation dose, the scan may help researchers better measure that damage over time.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05776212Recruiting
Imaging study for certain heart amyloidosis types and heart thickening
This trial uses special heart imaging to better measure how amyloid deposits affect the heart in people with certain diagnoses. The goal is to understand which imaging signals match your disease and to see if this approach could help guide care.
GroningenAges 40 years+ - NCT05758662Recruiting
PET-CT and heart ultrasound study valve changes after TAVI
This study looks at whether certain valve blood clots (called “subclinical leaflet thrombosis”) and different valve types are linked to valve aging over time. It uses a special PET-CT scan and an echocardiogram to measure changes in the heart valve about five years after TAVI.
CopenhagenAges 18 years+ - NCT05764057RecruitingPhase 3
Dapagliflozin to help the heart heal after a heart attack
This trial tests whether dapagliflozin (a diabetes medicine also used for heart protection) can reduce harmful heart “remodeling” after an acute heart attack. It may help your heart function and structure recover over the following 6 months.
ParisAges 18 years+ - NCT05719454Recruiting
Pacemaker-based nerve therapy for high blood pressure
This study tests a new pacemaker programming method (nerve therapy) to help lower blood pressure. It may be an option if you need a dual-chamber pacemaker and your blood pressure stays high despite medicine.
PragueAges 18 years+ - NCT05727852Enrolling by invitation
Breath and heart tests to study lung disease stiffness
This study uses breath analysis and heart/electrical heart testing to look at how stiff the arteries are in people with long-term lung conditions. It may help researchers better understand lung disease effects on the cardiovascular system.
MoscowAges 18 years+ - NCT05677568Enrolling by invitation
Registry study for Carillon device in leaky mitral valve
This registry collects health information from adults who already have the Carillon device to treat a leaky mitral valve caused by dilated heart muscle. The goal is to better understand how the device performs in real-world care over time.
AachenAges 18 years+ - NCT05697861Enrolling by invitation
Follow-up study for people previously treated with NTLA-2001
This study checks how people are doing long-term after receiving NTLA-2001 in an Intellia clinical trial. If you previously took part and agree to be followed, this may help the researchers understand lasting safety and effects.
ParisAges 18 years+ - NCT05700617RecruitingEarly Phase 1
Testing cardiac pumping strength in cardiogenic shock
This early study looks at how well the heart is pumping in people with cardiogenic shock, using measurements taken during a right-heart catheter (a small pressure-monitoring test). It may help doctors better assess heart function and guide next-step treatments like LVAD, heart transplant, or valve surgery.
Chicago, IllinoisAges 18 years+ - NCT05696652Recruiting
Exercise training study for people with heart failure
This study looks for blood and other markers that can explain how people with heart failure respond to exercise training. It may help researchers better tailor exercise or treatment plans for heart failure in the future.
Stanford, CaliforniaAges 18–89 - NCT05687292Recruiting
Decision tool to shorten breathing machine time in children
This study tests whether a computer “decision support” tool can help doctors safely reduce how long a child stays on a breathing machine after heart surgery. It may help children get off mechanical ventilation sooner and recover faster.
Boston, MassachusettsAges 1 day–12 years
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Common questions
- Are there clinical trials for cardiac?
- Yes. Clin2 currently lists 1,291 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.