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 1 - 10 out of 10 results
Recruiting
Florida
Does your child have asthma? If so, they may be eligible to participate in a study about whether using a smartphone application can improve asthma management. To participate, your child must be between the age of 12 and 18 and have an iPhone or Android device on which an app can be installed. The study is taking place at the University of South Florida in Tampa, Florida, and participants are expected to remain in the Tampa Bay area for the duration of the study.
Child
Recruiting
Colorado
Does your child have asthma that is not well controlled? This study will evaluate different ways to treat asthma for children is certain communities. Your child may be able to participate if they are between 5 and 12 and if you live in certain areas of Colorado where the study is taking place.
Child
Recruiting
Colorado
Do you have asthma and obesity and live near Aurora, Colorado? Obesity can lead to widespread inflammation that may make asthma worse. This study will test whether a medicine called CXA-10 reduces inflammation in the airways and body and improves asthma symptoms in people who have obesity. To participate in this study, you must be between 18 and 65 years old, have a BMI of 30 or greater, and have been on long-acting controller medicine—such as inhaled corticosteroids or long-acting beta2-agonists—for at least three months. This study is located in Aurora, Colorado.
Adult, Older Adult
Recruiting
Do you want to help find new treatments for heart failure with preserved ejection fraction? This study is testing whether a medicine called spironolactone can help treat heart failure with preserved ejection fraction when paired with the standard treatment. Spironolactone helps to remove excess water and sodium from the body. To participate in this study, you must be between 50 and 99 years old and diagnosed with heart failure with preserved ejection fraction.
Adult, Older Adult
Recruiting
Florida
Are you an adult with a history of heart failure, or do you just want to help people who do? This study is recruiting people with heart failure and people with normal heart function to explore the role of the gut microbiome in heart and blood vessel function. Participants in this study must be at least 18 years old and willing to provide blood and stool samples. This study takes place in Gainesville, Florida.
Adult, Older Adult
Accepting Healthy Volunteers
Recruiting
Do you have heart failure with preserved ejection fraction (HFPEF)? This study is testing the efficacy of a diuretic medicine called spironolactone that stops your body from absorbing too much salt and keeps your potassium levels from dropping too low. Participants of this study must be between 50 and 99 years old and already taking diuretic medicine. This study takes place in multiple locations across the United States and Sweden.
Adult, Older Adult
Recruiting
Florida
Are you an adult who does not have high blood pressure and is interested in research? This study will investigate how the brain regulates the body’s response to stress and how infection with HIV or pre-hypertension affects regulation. Your heart and brain activity will be measured while you are at rest, during a mentally stressful task, and while you feel angry. The study will also test whether a breathing exercise improves regulation. People with and without HIV and pre-hypertension will be included. To participate in this study, you must be between 21 and 65 years old and not have high blood pressure. This study is located in Miami, Florida.
Adult, Older Adult
Accepting Healthy Volunteers
Recruiting
Do you or a loved one have pneumonia? This study will test whether combining two medicines to reduce inflammation of the airway and to keep it open may help prevent respiratory failure in people who have pneumonia. To participate in this study, you must be at least 18 years old and have severe pneumonia with low blood oxygen levels.
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