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 66 results
Recruiting
Missouri
The overall goal is to assess the potential of the radiotracer to track inflammatory cells in lung diseases.
Adult, Older Adult
Accepting Healthy Volunteers
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
Recruiting
Missouri
Nebraska
Are you interested in participating in clinical research about ultrasounds? Ultrasounds are one of the most common ways to take images of the inside of your body. In some cases, something called a contrast agent is injected through an IV to make your organs even more visible during the ultrasound. Researchers in this clinical trial are comparing a new type of contrast agent to the current type used in ultrasounds. Participants must be 19 years old and considered to be generally healthy. The study is taking place in Kansas City, Missouri, and Omaha, Nebraska.
Adult, Older Adult
Accepting Healthy Volunteers
Recruiting
California
Missouri
Are you an adult with carotid artery stenosis (CAS)? Researchers in this study want to learn more about the plaque that causes atherosclerosis in patients with carotid artery stenosis. To be in the study, you must be at least 18 years old and will undergo a carotid positron emission tomography (PET)/magnetic resonance imaging exam so researchers can lean more on the new PET imaging approach for risk prediction in these patients. The study is taking place Saint Louis, Missouri, and in Los Angeles, California.
Adult, Older Adult
Recruiting
Missouri
Is your newborn in the neonatal intensive care unit at St. Louis Children’s Hospital? This study aims to better understand breathing problems and blood flow through the heart in premature newborns to better detect conditions such as pulmonary hypertension. To participate in this study, your newborn must have been born prematurely between 24 and 29 weeks’ gestation and be a patient in the Neonatal Intensive Care Unit at St. Louis Children’s Hospital. This study is located in St. Louis, Missouri.
Child
Recruiting
Are you an adult with sickle cell disease? This study aims to determine whether monthly exchange blood transfusions (removing blood and replacing it with transfused red blood cells) can improve health and prevent or reduce the number of pain crises. To participate in this study, you must be at least 18 years old, have sickle cell disease, and have not been on a chronic exchange transfusion program for at least 2 months. This study is located in Pittsburgh, Pennsylvania.
Adult, Older Adult
Recruiting
Do you have symptoms of a lung disease (such as long-term wet cough, bronchiectasis, or recurrent pneumonia) with no genetic diagnosis? This study aims to develop new ways to diagnose primary ciliary dyskinesia (PCD) or primary immune deficiency (PID), two conditions that can have similar symptoms. Researchers will combine information from genetic testing, lung imaging, and lung function tests to diagnose and tell the difference between these two conditions. Participants in this study must be 5 to 45 years old and must have symptoms of a serious lung disease but no diagnosis. This study is taking place at multiple locations in the United States and in Canada, including the NIH Clinical Center in Bethesda, Maryland.
Child, Adult
Recruiting
Maryland
Missouri
South Carolina
Do you or your child have Williams Syndrome (WS) or supravalvular aortic stenosis (SVAS) or are you interested in helping research on these conditions? The blood vessels in people with WS or SVAS have less elasticity, which can cause them to narrow. This study aims to see how blood vessel differences in people with these conditions affect organs in the body including the heart, gut, kidneys, and brain. This study is open to people with one of these conditions or healthy volunteers between 3 and 85 years old. The study takes place at the NIH Clinical Center in Bethesda,
All Ages
Accepting Healthy Volunteers
Recruiting
Maryland
Missouri
Do you or your child have Williams-Beuren syndrome (WS) or Supravalvular Aortic Stenosis (SVAS)? Symptoms of both conditions include vascular problems that can be mild or serious. Researchers want to find out why only some people with WS and SVAS have serious symptoms while others do not. Participants in this study will provide blood or saliva samples to help researchers see what DNA or environmental changes affect the severity of the disease. This study is located at the NIH Clinical Center in Bethesda, Maryland.
All Ages
Recruiting
Are you an adult with sickle cell disease who’s recently had a vaso-occlusive episode? This study investigates better ways for emergency departments (EDs) to manage vaso-occlusive episodes, or pain crises, in people with sickle cell disease. This study is incorporating “Individualized Pain Plans” into patients’ electronic health records to allow for faster and more accurate treatment in the ED. To participate in this study, you must be between the ages of 18 and 45 and have sickle cell disease. You must also have had at least one visit to a participating ED in the past 90 days due to pain from a vaso-occlusive episode and at least one visit at the study site sickle cell disease clinic within the past 12 months. This study takes place in multiple locations in the United States.
Adult
Accepting Healthy Volunteers