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 - 6 out of 6 results
Recruiting
Maryland
Has your doctor recommended right heart cardiac catheterization for you? This study is investigating new magnetic resonance imaging (MRI) techniques that use a guidewire to help position a heart catheter within the heart. MRI fluoroscopy shows pictures of the heart so that doctors can watch while they work. Using the guidewire during MRI may improve the procedure of heart catheterization. To participate in this study, you must be at least 18 years old, and your doctor must have recommended right heart catheterization for you. This study is located in Bethesda, Maryland.
Adult, Older Adult
Recruiting
Wisconsin
Does your developing baby have a heart defect? Have you had a stillborn baby? This study tests a new technology to measure fetal heart activity and find possible problems early. These problems include fetal arrhythmia and conduction disorders such as Brugada syndrome. To participate in this study, you must be at least 18 years old and pregnant, and have one of five high-risk complications of pregnancy: a fetus with a major congenital heart defect, hydrops, or gastroschisis; a previous unexplained stillbirth; or twins who share a placenta. This study is located in Madison and Milwaukee, Wisconsin.
Adult, Older Adult
Female
Recruiting
Tennessee
Have you been diagnosed with orthostatic intolerance? This study aims to find out how the body’s regulation of basic functions, such as heart rate and blood pressure, is altered in people who have orthostatic intolerance. This condition, which has an unknown cause, is characterized by a racing heartbeat, dizziness, lightheadedness, and other symptoms that occur when a person stands up. To participate in this study, you must be between 18 and 80 years old and have orthostatic intolerance. This study is located in Nashville, Tennessee.
Adult, Older Adult
Accepting Healthy Volunteers
Recruiting
Florida
Is your newborn in the NICU at Holtz Children’s Hospital in Miami? Newborns born very prematurely often need oxygen therapy or ventilation to help them breathe and survive. This study will help doctors understand how changes in oxygen and carbon dioxide levels while newborns are getting treatment affect how their lungs develop. While your newborn is in the newborn neonatal intensive care unit (NICU), researchers will record his or her oxygen and carbon dioxide levels, heart rate, and other measures. To participate in this study, your newborn must have been born prematurely between 23 and 28 weeks’ gestation, be less than 28 days old, and be receiving oxygen therapy. This study is located in Miami, Florida.
All Ages
Recruiting
Minnesota
Are you or a loved one on a ventilator in the hospital in Minnesota? This study is finding out whether people who are on a ventilator sleep better and have less anxiety if they can control their own sedation medicine. To participate in this study, you must be at least 18 years old and receiving mechanical ventilation while hospitalized. This study is located in Minneapolis and Rochester, Minnesota.
Adult, Older Adult
Recruiting
California
Is your child on a ventilator at Children’s Hospital Los Angeles? Ventilators can sometimes weaken the muscles around the lungs, especially in children. This study is testing whether a new computer method to control ventilators can help prevent muscle weakness in children. To participate in this study, your child must be between 1 month and 18 years old and have been on a ventilator for less than 48 hours (or 72 if they were transferred from another hospital) because of a serious lung disease. This study is located in Los Angeles, California.
Child, Adult