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
- NCT04075084Recruiting
Watching outcomes of routine home monitoring after a heart monitor implant
This registry study follows people who get a BIOTRONIK implantable heart monitor and use home monitoring. It looks at how routine care and at-home check-ins work in real life, which may help improve support and tracking over time.
AdelaideAges 18 years+ - NCT04080492Recruiting
Quality of life study for heart disease patients
This study asks people with certain heart conditions to complete follow-up questionnaires to better understand how their quality of life changes over time. It may help improve how care plans are made and supported for patients and their families.
Cleveland, OhioAges 18–70 - NCT04114435Recruiting
Heart and lung testing in extremely premature babies
This study looks at how the hearts and lungs work in babies born very early (before 29 weeks). It may help researchers understand why some babies develop breathing and heart circulation problems and how to measure their recovery.
Montreal, QuebecAges 1 week–5 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+ - NCT04158479Recruiting
Registry for people on ECMO life support
This registry collects information about people who are placed on ECMO, a heart-lung machine used to support breathing and/or circulation. It may help doctors better understand who benefits and how to manage ECMO in the future.
Beijing, Beijing MunicipalityAges Any age - NCT04164173Recruiting
Breathing therapies after heart surgery for lung overinflation
This study looks at breathing (respiratory) therapies to help after certain heart surgeries that can cause the lungs to feel overly inflated. If you’re eligible, you may receive and be assessed for how well these breathing treatments work during your recovery.
Dallas, TexasAges 18–80 - NCT04183660Recruiting
MOBYBOX monitoring study for temporary heart-lung support
This is a post-market “real-world” monitoring study for a heart-lung machine (extracorporeal cardiopulmonary support/ECMO) used during very serious heart and/or lung failure. It aims to track safety and performance in patients who need rescue breathing or circulation support.
Hanover, Lower SaxonyAges 18–80 - NCT04198792Recruiting
Finding outcomes after ECMO for heart-related emergencies
This study looks at what helps determine survival and better brain function after people are treated with ECMO, a heart-lung support machine. It may help doctors understand who is most likely to do well after this kind of emergency treatment.
GothenburgAges 16 years+ - NCT04229056Recruiting
Computer training to improve thinking and planning after stroke or Parkinson’s
This trial tests computer-based “self-training” to improve executive function, such as working memory—your ability to hold and use information in mind. It’s for adults with a prior stroke, cardiac arrest, or Parkinson’s disease who have trouble on a specific working-memory task.
CopenhagenAges 18–100 - NCT04257994Recruiting
Study how heart cell connections differ in inherited rhythm problems
This study looks at how proteins that connect heart cells are distributed in people with inherited heart rhythm disorders (and some family members who may carry the gene). It aims to better understand the biology behind these conditions, which may help improve risk assessment and future care.
LondonAges 18 years+ - NCT04262830Recruiting
Heart scans to predict future heart failure after chemotherapy
This trial uses detailed heart imaging (a special MRI scan) to see how chemotherapy may have affected your heart and to predict who could develop heart failure later. If you qualify, it may help your care team better monitor your heart health over time.
San Diego, CaliforniaAges 13–39 - NCT04281329Recruiting
CT and heart MRI add-on for atrial fibrillation ablation
This trial studies whether CT scans and heart MRI scans (done around the time of atrial fibrillation ablation) can help care planning and results. It may help your team better understand your heart before and after the procedure.
ParisAges 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+ - NCT04291378Recruiting
Proton versus standard radiation for early breast cancer
This trial compares two types of radiation—proton therapy and standard photon therapy—for early breast cancer after surgery. It’s mainly for people whose usual radiation plan would put a higher dose to the heart and/or lungs, aiming to reduce that exposure.
AalborgAges 18 years+ - NCT04299828Recruiting
Study of inflammation activity during complex heart surgery
This study measures how active white blood cells and inflammation are during complex heart surgery using a heart-lung machine. It may help doctors better understand what triggers inflammation during surgery and how to improve care.
Boston, MassachusettsAges Any age - NCT04336644Recruiting
Checks heart rhythm continuously or intermittently during treatment
This study compares two ways of monitoring your heart rhythm while you start certain cancer treatments. It may help doctors detect heart rhythm changes earlier and decide which monitoring approach is better.
St Louis, MissouriAges 18 years+ - NCT04344912Recruiting
Study of COVID-19 effects on heart emergency care
This study looks at how the COVID-19 outbreak affected care for people admitted to the cardiac intensive care unit. It may help hospitals improve how they plan and respond during major outbreaks.
ParisAges 18 years+ - NCT04345627Recruiting
Japanese registry for patients having lead removal from veins
This study collects information about people in Japan who need a procedure to remove heart device wires (leads) through a vein. It helps doctors understand outcomes and improve care for future patients.
Suita, OsakaAges Any age - NCT04407780Recruiting
Cardio-oncology patient registry
This is a registry (a research database) for people who are being followed in cardio-oncology, which means care for heart problems related to cancer or cancer treatments. It may help doctors better understand these conditions and improve future care.
ParisAges 18 years+ - NCT04416958Recruiting
Pacemaker or defibrillator pacing strategy to reduce heart timing issues
This study looks at a pacing approach for people with a pacemaker or ICD (defibrillator) to help prevent the heartbeats from becoming out of sync. It may be useful if your implant team is trying to reduce pacing-related “timing” problems in the heart.
Fürth, BavariaAges 18 years+ - NCT04442789Recruiting
Study of lasting effects after COVID-19 hospitalization
This study looks at what health problems remain after a person was hospitalized for COVID-19. It may help doctors understand these long-lasting effects and how to care for people afterward.
GiessenAges 18 years+ - NCT04444128Recruiting
Testing heart risk assessment using MRI T1 mapping
This study checks whether an MRI heart scan measure called “T1 mapping” can improve how doctors estimate heart disease risk in everyday people. You may join if you’re an adult and can have a contrast-enhanced heart MRI safely.
Frankfurt am Main, HesseAges 18 years+ - NCT04464655Recruiting
10-minute heart MRI protocol for people with heart conditions
This study uses a short, 10-minute heart MRI to check how well it works for people who need a clinically indicated heart scan. It may help streamline heart MRI testing, making exams faster while still providing useful heart information.
Montreal, QuebecAges 18 years+ - NCT04490317Recruiting
Study follows people with carbon monoxide poisoning in Korea
This study looks at people who have been sickened by carbon monoxide (CO) from an accident or exposure. It aims to better understand what happens over time, which could help improve care and outcomes in the future.
Wŏnju, Gangwon-doAges Any age
Hear when a new Cardiac trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
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.