Find NHLBI Clinical Trials

Search selected NHLBI-supported clinical trials and observational studies by condition, location, or age group. You can also view the complete list of NHLBI-funded studies at ClinicalTrials.gov.

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Showing 31 - 40 out of 47 results
Recruiting
Are you a 30- to 55-year-old smoker or non-smoker who would like to support better understanding of COPD risk factors? This study aims to find early signs of COPD in adults who have a high risk of this condition. Researchers will compare results from questionnaires, lung tests, and other tests in people who smoke and in people who do not smoke to look for factors that predict which people will develop COPD. To participate in this study, you must either currently smoke or have no history of smoking. This study takes place in multiple locations in the United States.
Adult
Accepting Healthy Volunteers
Recruiting
Are you between 14 and 22 weeks pregnant, and think that you might have obstructive sleep apnea (OSA) ? This study is testing whether using CPAP to treat obstructive sleep apnea in pregnant women can help lower the risk of hypertensive disorders during pregnancy. To participate in this study, you must be at least 18 years old. This study takes place in multiple locations in the United States.
Adult, Older Adult
Female
Recruiting
Illinois
Are you an adult who has been diagnosed with sleep apnea, prediabetes, and overweight or obesity? This study aims to understand how sleep apnea raises the risk of diabetes. The study will test whether treating sleep apnea with medicines or continuous positive airway pressure (CPAP) helps lower the risk of diabetes in people who have prediabetes. To participate in this study, you must be 20 to 65 years old. This study takes place in Chicago, Illinois.
Adult, Older Adult
Recruiting
Illinois
Are you an African American adult with type 2 diabetes? This study is testing whether mindfulness meditation can help reduce stress and improve sleep. Participants will attend eight meditation classes in person or online and will receive regular text messages to remind them to practice meditation techniques at home. This study takes place in Chicago, Illinois.
Adult, Older Adult
Accepting Healthy Volunteers
Recruiting
This observational trial studies whether respiratory viruses are the cause of lung disease (bronchiolitis obliterans syndrome [BOS] or graft-versus-host disease of the lung) and changes in lung function in patients who have received a donor stem cell transplant. Patients with chronic graft-versus-host disease (cGVHD) are at higher risk of developing BOS. Studies have also shown that patients who had a respiratory viral illness early after their transplant are at higher risk of developing lung problems later on. Patients who are at risk and who already have BOS might benefit from being monitored more closely. Spirometry is a way of assessing a patient's lung function and is often used to diagnose lung disease. Spirometry measured at home with a simple handheld device may reduce the burden of performing pulmonary function testing at a facility and potentially help patients get their lung disease diagnosed and treated sooner.
All Ages
Recruiting
Washington
Are you an adult with congenital heart disease? If so, you may be able to participate in a clinical trial where researchers are testing a program for stress management for people with congenital heart disease. Participants must be 18 years old and have complex congenital heart disease. To participate, you must also receive care in the University of Washington health system. The study is
taking place in Seattle, Washington.
Adult, Older Adult
Recruiting
Washington
Are you an adult planning to get a left ventricular assist device (LVAD) implant to treat heart failure? If so, you may be able to take part in a clinical trial about heart failure. Researchers are testing whether a dietary supplement can improve heart function for people with advanced heart failure. To participate, you must be at least 18 years old and be scheduled for elective LVAD implantation. The study is taking place in Seattle, Washington.
Adult, Older Adult
Recruiting
The goal of this clinical trial is to compare different types of blood transfusions for critically injured patients who require large-volume blood transfusions. Participants must be at least 15 years old and need a massive blood transfusion. The study is taking place in locations in Alabama, California, Louisiana, Maryland, Missouri, North Carolina, Ohio, Oregon, Pennsylvania, Texas, Washington, and Wisconsin.
All Ages