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 - 8 out of 8 results
Recruiting
Maryland
Do you or does your child have a lipid disorder and want to improve future diagnosis and treatment? This study is exploring how different diagnostic tests can help us understand how lipid disorders, including high blood cholesterol, affect the body. Information from this study may help improve the way lipid disorders are diagnosed or treated in the future. To participate, you or your child must be at least 2 years old. The study is being conducted in Bethesda, Maryland.
All Ages
Recruiting
Maryland
Do you or your child have dyslipidemia? This study is exploring how different diagnostic tests can help us understand how lipid disorders, including high blood cholesterol and high blood triglycerides, affect the body. Information from this study may help improve the way lipid disorders are diagnosed or treated in the future. Participants in this study must be at least 2 years old. The study is being conducted in Bethesda, Maryland.
All Ages
Recruiting
Texas
Are you an adult who is healthy or has problems with the level of cholesterol or other lipids in the blood? This study is gathering information on the risk factors for very high or very low levels of lipids, or fats, in the blood. Researchers will collect participants’ demographic information, medical history, and blood samples. To participate in this study, you must be at least 18 years old. This study takes place in Dallas, Texas.
Adult, Older Adult
Accepting Healthy Volunteers
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
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
Wisconsin
Do you have a high-risk pregnancy? This study will investigate the use of a non-invasive scan called fetal magnetocardiography to detect potential problems in the fetus in five high-risk pregnancy conditions associated with stillbirth. The scan is normally used to look at fetal heart rhythms. To participate in this study, you must be at least 18 years old and pregnant with one of the following: having a stillbirth in a previous pregnancy, carrying identical twins, or having a fetus that has been diagnosed with major congenital heart disease, fetal hydrops, or fetal gastroschisis. This study takes place in Madison and Milwaukee, Wisconsin.
Adult, Older Adult
Female
Recruiting
Indiana
Are you a woman who is postmenopausal or a man older than 65? This study will investigate the effects of oral progesterone for older women and testosterone for older men on QT intervals. QT intervals that are increased by medicine can lead to dangerous heart rhythm problems. Researchers hope to learn more about why this happens and how to deliver safer doses. This study is located in Indianapolis, Indiana.
Adult, Older Adult
Accepting Healthy Volunteers