Clinical trials
Cardiopulmonary clinical trials
Below are recruiting cardiopulmonary clinical trials, each written for real people, not researchers. We’re tracking 165 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05213572Recruiting
Study of organ health in adults with sickle cell
This observational study looks closely at how major organs (like brain, kidneys, heart, lungs, liver, and joints) are working in adults with sickle cell. It may help researchers understand what changes happen after curative treatments (like transplant or gene therapy) or with ongoing care.
Bethesda, MarylandAges 18–100 - NCT05593627RecruitingPhase 4
Lithium to improve sleep and thinking after heart surgery
This trial tests whether lithium carbonate can improve sleep and thinking (cognitive function) after heart valve surgery that uses a heart-lung machine. It may help some people who have trouble sleeping or thinking after surgery, but it excludes people with significant sleep or thinking problems before surgery.
Shenyang, LiaoningAges 18–65 - NCT03253705Recruiting
Donate small blood samples to study heart and inflammation health
This study collects small blood samples (and sometimes samples during treatment) to help researchers understand diseases involving the heart, inflammation, and blood vessel function. It may help improve future tests and treatments by giving scientists usable human data.
Bethesda, MarylandAges 18–100 - NCT06856525RecruitingPhase 2/Phase 3
MRI scan to study lung health in e-cigarette users
This study tests a new type of MRI scan to see how e-cigarettes affect your lungs. It's for young adults who vape nicotine regularly. The results may help doctors understand vaping-related lung damage.
Durham, North CarolinaAges 18–35 - NCT05843370Enrolling by invitation
Air pollution and heart/lung health across income and diet
This study looks at how different levels of outdoor air pollution may affect heart and lung health, and how a person’s socioeconomic situation and nutrition might change the risk. You may be asked to do health checks and help the team understand your usual diet and symptoms.
Chapel Hill, North CarolinaAges 25–70 - NCT06109155RecruitingPhase 4
Comparing medications to reduce bleeding in heart surgery
This trial tests two medicines—ACT (a blood thinner) and tranexamic acid (a medicine to reduce bleeding)—to see which is better at controlling bleeding during heart surgery. It is for adults having planned heart surgery with a heart-lung machine.
TaichungAges 18 years+ - NCT07477977Recruiting
Finding the right dose of protamine to reverse heparin after heart bypass
This study is testing different doses of a medication called protamine, which is given after heart surgery to reverse the effects of heparin (a blood thinner). The goal is to find the safest and most effective dose for patients who have had a heart-lung bypass machine during surgery.
SohagAges 18 years+ - NCT05927233RecruitingPhase 4
Methylprednisolone in children after open-heart surgery
This trial tests whether giving methylprednisolone (a steroid medicine) can lower the body’s inflammatory response in children during the first day after congenital open-heart surgery. It may help reduce harmful inflammation and improve recovery for some children undergoing their first surgery.
Karachi, SindhAges 1 month–18 years - NCT07329842Recruiting
Bed height and CPR quality in pediatric simulation
This trial tests how the height of a hospital bed affects chest compression quality and the physical strain on doctors during CPR on a child-sized manikin. It may help find the optimal bed height to improve CPR effectiveness.
Antalya, AntalyaAges 18 years+ - NCT04616313Recruiting
MRI and breathing tests in people who vape
This study uses a special lung scan (MRI) and breathing tests to understand how vaping affects lung structure and function. It may help researchers learn what early lung changes happen after starting vaping, even if you don’t feel sick.
London, OntarioAges 16 years+ - NCT06680271Enrolling by invitation
Exercise program from home for older adults with heart or lung disease
This trial tests whether a home-based exercise program, guided remotely by a therapist, can help older adults with conditions like COPD, asthma, heart failure, or metabolic syndrome. The goal is to improve their health and quality of life without needing to go to a clinic.
Envigado, AntioquiaAges 60–100 - NCT07247474Recruiting
Using electrical impedance tomography for heart and lung imaging
This trial uses a safe, non-invasive technique called EIT to monitor heart and lung function in children and young adults with certain heart or lung conditions, compared with healthy volunteers. It may help doctors better understand and manage these conditions.
Aurora, ColoradoAges 2 weeks–25 years - NCT06930443Recruiting
Oxygen use and organ injury after heart-lung bypass surgery
This trial looks at how oxygen is used during heart surgery that uses a heart-lung machine, and whether low oxygen levels can lead to organ damage. It may help doctors better understand how to protect patients during surgery.
Uppsala, SwedenAges 18 years+ - NCT07326449Enrolling by invitation
CO2 measurement test on exercise bike
This trial checks if a portable device can reliably measure carbon dioxide in your breath while you rest and cycle slowly. It may help understand how your lungs work during light exercise.
LinköpingAges 18–70 - NCT06673953Recruiting
Breathing training for heart surgery recovery with neck posture problems
This trial tests whether a breathing exercise device can improve heart and lung function in men who had heart bypass surgery at least 3 months ago and also have neck pain from poor posture. It may help you breathe better and feel stronger after surgery.
Giza, Giza GovernorateAges 45–55 - NCT07693348Recruiting
Daily stair climbing for heart rehab
This trial tests whether climbing stairs every day helps people with heart problems recover better during cardiac rehab. If you are in a rehab program and can walk without help, you may be able to participate.
ArrasAges 18 years+ - NCT07584187Recruiting
Brain monitoring during emergency heart-lung support treatment
This study uses special monitoring devices to measure brain activity in patients receiving emergency mechanical heart-lung support (ECMO). The goal is to help doctors quickly predict which patients might recover neurologically and guide early treatment decisions.
ViennaAges 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 - NCT07744009Recruiting
Awake breathing support for heart valve surgery
This trial tests a new anesthesia method that lets you breathe on your own during heart valve surgery, instead of using a breathing tube. It aims to see if this approach is safer and helps you recover faster than standard anesthesia.
Guangzhou, GuangdongAges 18 years+ - NCT07711951Recruiting
Bypass surgery times and ICU stay length
This study looks at how long people stay in the intensive care unit after planned coronary artery bypass surgery. It checks if the time spent on the heart-lung machine or with the aorta clamped affects recovery.
Diyarbakır, Outside of the USAges 18 years+ - NCT03132129Recruiting
Heart imaging study in adults with type 2 diabetes
This study looks for early, “silent” changes in heart function in adults with type 2 diabetes, even if you feel okay. It uses heart scans and looks for factors that may help explain why these changes happen.
LeicesterAges 50–75 - NCT03978377Recruiting
Checks heart and lung effects after chest radiation
This study looks at how chest radiation treatment affects the heart and lungs in people with certain lung or esophagus cancers. It may help doctors better predict and prevent these side effects during curative (aimed at cure) radiotherapy.
LeuvenAges 18 years+ - NCT03981107Recruiting
Hands-only CPR vs standard CPR after witnessed cardiac arrest
This study compares two ways of doing CPR for adults who collapse outside the hospital and are not breathing normally: hands-only CPR versus standard CPR. The goal is to see which approach improves survival after witnessed cardiac arrest.
BergamoAges 18 years+ - 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
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Common questions
- Are there clinical trials for cardiopulmonary?
- Yes. Clin2 currently lists 165 recruiting cardiopulmonary 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 cardiopulmonary 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 cardiopulmonary 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.