Clinical trials
Cardiac clinical trials
Below are recruiting cardiac clinical trials, each written for real people, not researchers. We’re tracking 1,288 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT01999140Recruiting
ICD and CRT-D device registry for patients worldwide
This trial is a real-world registry that collects information from people who receive an implantable heart defibrillator or related device. It helps doctors understand how these devices are used and how patients do over time.
Washington D.C., District of ColumbiaAges Any age - NCT06208007Recruiting
Predicting heart failure with stiff arteries
This study looks at whether stiffer arteries can help predict a type of heart failure where the heart doesn't relax properly (HFpEF). It's for people who have risk factors like high blood pressure, diabetes, or being older, and who may have early signs of heart trouble.
Göttingen, Lower SaxonyAges 18 years+ - NCT04114799Recruiting
Tests brain-surgery monitoring to optimize circulation
This study checks a monitoring approach during brain tumor surgery to help control blood flow and heart-related measurements. It may benefit you by making surgery safer and helping the team respond faster during the operation.
Hradec KrálovéAges 18 years+ - NCT04558723Recruiting
MRI-guided heart defibrillator placement for non-ischemic weakened hearts
This study looks at whether using a heart MRI (CMR) to guide where to place an implanted defibrillator (ICD) improves outcomes for people with a weakened heart muscle caused by non-ischemic dilated cardiomyopathy. It’s for adults who have low pumping strength and evidence of heart scarring on MRI.
Lübeck, Schleswig-HolsteinAges 18 years+ - NCT02355457Recruiting
Blood marker study in new heart attack symptoms
This study looks at blood “biomarkers” (signals in blood tests) in people who arrive with symptoms that could be a heart attack. It may help doctors spot and manage acute heart problems sooner and more accurately.
HamburgAges 18 years+ - NCT06048796Recruiting
Early stopping of sedation after cardiac arrest with normal EEG
This study is testing whether it is safe to stop sedation and temperature management early in cardiac arrest patients who have a normal-looking brain wave test (EEG). If you qualify, you would stop sedation sooner than usual, which may help you wake up faster.
Arnhem, GelderlandAges 18 years+ - NCT05479669Recruiting
Testing detailed heart scans in people with heart failure symptoms
This study looks at whether doing very detailed heart testing helps understand and guide care for people with heart failure with preserved pumping strength. You may be eligible if you’re an adult with specific symptom levels, recent heart-failure-related visits, and matching scan and blood test results.
GroningenAges 18 years+ - NCT06369818Recruiting
Heart output measurement in shock patients on life support
This study tests if a new way of measuring heart function (using sound waves and breath analysis) works well in patients who are in severe heart failure and need a heart-lung machine. It might help doctors better monitor patients after heart surgery.
MünsterAges 18 years+ - NCT05649826Recruiting
Ultrasound guidance tool for clearer heart ultrasound images
This trial tests an automated computer tool that helps guide an ultrasound exam of the heart, aiming to get better, usable images. You may benefit if your heart ultrasound is usually hard to capture or takes extra effort to obtain clear pictures.
Detroit, MichiganAges 18–120 - NCT06401616RecruitingPhase 4
Stopping blood thinners after heart surgery for atrial fibrillation
This trial tests whether it is safe for patients with atrial fibrillation to stop taking blood thinners after they have had heart surgery, including closure of the left atrial appendage. The goal is to see if these patients can avoid long-term medication without increasing the risk of stroke.
Copenhagen, Capital RegionAges 18 years+ - NCT05851053Recruiting
Study of heart function years after breast cancer treatment
This study checks how well your heart works long after breast cancer treatment. If you joined the earlier de BLOC-I study, you may be invited for follow-up to understand long-term heart effects.
GroningenAges Any age - NCT07849738Recruiting
Genetic testing after sudden cardiac death
This study looks at the DNA of young people who died suddenly without a clear cause, to find inherited heart conditions. If a genetic cause is found, close family members can be tested to learn their own risk and get preventive care.
São Paulo, São PauloAges 5–50 - NCT07844850Recruiting
Blood tests to predict silent strokes after heart procedures
This study looks at whether certain blood tests can help predict if small, silent strokes occur in the brain during heart or blood vessel procedures that carry a higher risk of clots. The goal is to better identify who might need extra protection during these procedures.
ThessalonikiAges 18 years+ - NCT06455644Recruiting
CT vs. X-ray for sizing heart device in AF treatment
This study tests whether using a CT scan or a special X-ray (DSA) is better for picking the right size of a left atrial appendage closure device during a combined ablation and closure procedure. It aims to make the procedure safer and more effective.
Foshan, GuangdongAges 18 years+ - NCT05969028Recruiting
Testing breathing and chest compression timing for out-of-hospital cardiac arrest
This trial studies the best timing for chest compressions and airway management for adults who have sudden cardiac arrest outside the hospital. It may help improve survival chances by guiding first EMS responders on how to act sooner and more consistently.
Seattle, WashingtonAges 18 years+ - NCT07839234Enrolling by invitation
Personalized breathing support for lung injury patients
This trial tests a new way to adjust breathing machine settings for people with a lung condition called ARDS. The adjustments are based on detailed monitoring of the heart and lungs, aiming to improve recovery.
Xiamen, FujianAges 18 years+ - NCT07840365RecruitingPhase 3
Finding the best blood-thinner plan after a Watchman device procedure
This study tests which blood-thinner approach works best after a procedure to close a small heart pouch (left atrial appendage) with a Watchman device. It aims to prevent strokes while reducing bleeding risks.
Austin, TexasAges 18 years+ - NCT07839728Enrolling by invitation
How common is low body temperature after surgery in recovery?
This study looks at how common low body temperature (hypothermia) is after surgery in recovery rooms. It aims to help improve patient care by measuring temperature changes and related outcomes.
Madrid, MadridAges 18 years+ - NCT06461377RecruitingPhase 4
GLP-1RA for heart nerve damage in type 2 diabetes
This trial tests whether a type of diabetes medicine called GLP-1RA can help prevent or improve nerve damage in the heart caused by diabetes. It is for people with type 2 diabetes who are overweight or obese.
Nanjing, JiangsuAges 18–70 - NCT07829003Enrolling by invitation
Step test to measure fitness in healthy adults
This study tests a new step-based exercise test to see if it works as well as a standard bike test for measuring fitness and breathing. If you are a healthy adult, you might join to help validate this simpler test.
EdinburghAges 18–55 - NCT07830888Recruiting
Mitral valve prolapse rhythm risk study
This study looks at people with mitral valve prolapse who also have rhythm problems like extra beats or fast heart rhythms. The goal is to better understand risk and improve care.
OsloAges Any age - NCT07829705RecruitingPhase 2
Amyloid PET scan to measure treatment response in AL cardiac amyloidosis
This study uses an amyloid PET/CT scan to see how well first-line treatment is working in people with AL cardiac amyloidosis, a condition where abnormal proteins build up in the heart. The scan may help doctors better understand and monitor the disease.
BeijingAges 18 years+ - NCT07825805Recruiting
Hand position and CPR comfort for helpers
This trial tests different hand positions during CPR to see which is easier and gives better chest compressions. It may help find a way for people to do CPR more comfortably and effectively.
PécsAges 18 years+ - NCT07824700Recruiting
Prehabilitation for frail patients before heart surgery
This program helps mildly or moderately frail patients get physically stronger before their heart surgery or procedure. It is designed to improve recovery and outcomes by starting exercises and support during the waiting period.
Hong KongAges 18 years+
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Common questions
- Are there clinical trials for cardiac?
- Yes. Clin2 currently lists 1,288 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.