Clinical trials
Cardiac Function clinical trials
Below are recruiting cardiac function clinical trials, each written for real people, not researchers. We’re tracking 100 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05698277Recruiting
Ultrasound to track baby heart function in heart disease
This study uses automated ultrasound measurements to track how a baby’s heart is working during pregnancy. It compares babies who have a specific congenital heart problem with babies without it, to understand what ultrasound can detect.
Sydney, New South WalesAges 18 years+ - NCT06567106Recruiting
Heart function study with gentle ultrasound
This trial uses low-intensity ultrasound to see if it can safely measure or affect heart function in healthy people. It aims to understand how the heart works during a simple, non-invasive procedure.
ShanghaiAges 18–65 - NCT07393165Recruiting
Thyroid hormone therapy for children with mild thyroid issues
This trial tests whether a thyroid hormone medication (levothyroxine) can improve heart function in children who have slightly high TSH levels but normal thyroid hormones. It may help children aged 4 to 15 with subclinical hypothyroidism.
Tanta, El-GharbiaAges 4–15 - NCT07531602Enrolling by invitation
How breathing pressure affects heart function during surgery
This study observes how different levels of breathing support during heart surgery affect your heart's function. Researchers will use ultrasound and monitoring tools already planned for your surgery to see how small changes in breathing pressure impact your heart's performance.
Boston, MassachusettsAges 18 years+ - 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 - NCT06660602Recruiting
Brain function check before and after heart surgery
This study checks how well your brain works before and after heart surgery. It uses safe tests like a CT scan and an EEG to see if surgery affects brain function.
BeijingAges 18–80 - NCT05391737Recruiting
Study of fluid in the lungs after open-water swimming
This study looks at what happens in the lungs after open-water swimming. It may help doctors better understand and recognize “swimming-induced lung fluid,” especially by using lung ultrasound when symptoms happen.
FalunAges 18 years+ - NCT05775588Recruiting
Lung valve treatment for severe COPD
This study tests tiny valves placed in your airways to see if they improve your heart and muscle function over the long term. It's for people with severe COPD (chronic lung disease) and significant emphysema damage.
Beijing, Beijing MunicipalityAges 18–90 - NCT07288840Enrolling by invitation
Exercise plan for heart recovery monitored by heart rate
This study tests a special exercise program for people with heart disease or heart failure. The goal is to see if the exercises can help improve how your heart responds to activity and daily life.
Leiria, Leiria DistrictAges 18 years+ - NCT07251361Enrolling by invitation
Exercise program for heart failure with preserved ejection fraction
This study tests whether a special exercise program that combines different types of training (like aerobic, strength, and balance) can improve heart and muscle function, daily abilities, and quality of life in people with heart failure with preserved ejection fraction (HFpEF). You may benefit if your heart failure is stable and you are able to exercise safely.
Pamplona, NavarreAges 18 years+ - NCT05042219Recruiting
How lung disease treatment may affect heart function
This study looks at how common long-term lung conditions and their treatments may change heart function. It uses heart imaging (an MRI) to see what’s happening, which could help doctors better monitor heart risks in people with lung disease.
AachenAges 18–99 - NCT07770269Recruiting
Heart function and anesthesia depth during heart surgery
This study checks how well the heart works and how deep the anesthesia is during planned heart surgery where a heart-lung machine is used. It aims to improve safety and outcomes for patients.
ThessalonikiAges 18 years+ - NCT05999721Recruiting
Nerve block for better breathing after heart surgery
This trial is testing a nerve block (a numbing injection) placed near the breastbone to see if it helps your lungs work better after heart surgery. If you are having planned heart surgery through a breastbone cut, you may be able to join.
Petah TikvaAges 18 years+ - NCT07349914Enrolling by invitation
Shoulder Pain and Function with Heart Devices
This study looks at shoulder pain and how well the shoulder works in people who have a heart device like a pacemaker. It aims to understand if having the device affects shoulder function over time.
Ankara, SamanpazariAges 18 years+ - NCT02798705Recruiting
Testing heart tiny blood vessel function in amyloidosis
This study measures how well the heart’s tiny blood vessels work in people with cardiac amyloidosis, using special heart testing. It may help doctors understand the disease better and improve how patients are evaluated over time.
SeoulAges 18–85 - NCT05659589Recruiting
Using a kidney toxin level to predict heart effects in AKI
This study looks at whether measuring indoxyl sulfate, a substance that can build up when kidneys are injured, can help predict how blood vessels and the heart are affected during acute kidney injury (AKI). It may help doctors understand who is at higher risk of heart-related problems while AKI is happening.
AmiensAges 18 years+ - NCT05173740RecruitingPhase 4
Rehab program for people after an out-of-hospital cardiac arrest
This trial studies a rehabilitation program for adults who survived a first out-of-hospital cardiac arrest. It may help improve recovery after leaving the hospital by using guided follow-up and surveys to see how people are doing over time.
CopenhagenAges 18–65 - NCT05826587Recruiting
Mobile coaching to prevent falls during heart rehab
This study adds a personalized home exercise program delivered by a smartphone app to standard outpatient heart rehabilitation. It aims to improve balance and strength to lower the chance of falling during the rehab period.
Scottsdale, ArizonaAges 18 years+ - NCT07484477Recruiting
Sitting less to improve heart and lung function after heart surgery
This study tests whether helping people sit less and move more after heart surgery can improve their breathing, heart function, and quality of life. If you're between 50 and 80 and have had heart surgery, this may help you recover better.
Peshawar, KPKAges 50–80 - NCT06814990Recruiting
Heart and liver study for TIPSS patients
This study uses MRI and echocardiography to check heart function in people with alcohol-related liver cirrhosis who need a TIPSS procedure. It aims to learn more about how the heart works in these patients.
Jena, ThuringiaAges 18–99 - NCT05962190Recruiting
Short-term extra fat intake to study liver metabolism
This study tests what happens to the liver and fat metabolism when you eat extra fat for a short time. It may help researchers understand how diet affects liver function and metabolism in otherwise stable adults.
OxfordAges 18–65 - 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 - NCT06652087Recruiting
Testing rifaximin for heart failure with preserved pumping
This trial tests whether the antibiotic rifaximin (taken by mouth) can improve heart function in people with a type of heart failure where the heart pumps well but is still weak (HFpEF). Rifaximin might help by changing the bacteria in your gut.
MoscowAges 18–80 - NCT07666698RecruitingPhase 1/Phase 2
Metformin to improve heart function after LVAD implant
This trial tests if metformin, a medicine commonly used for diabetes, can help improve heart function in people who have a mechanical heart pump (LVAD). You may be able to join if you are between 18 and 75, have a continuous-flow LVAD, and have a condition called insulin resistance (where your body doesn't use insulin well) but your blood sugar levels are well-controlled.
Nanjing, JiangsuAges 18–75
Hear when a new Cardiac Function 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 function?
- Yes. Clin2 currently lists 100 recruiting cardiac function 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 function 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 function 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.