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 - 9 out of 9 results
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
Maryland
Minnesota
Are you considering a blood stem cell transplant? This study is investigating a new method for collecting blood stem cells from donors to see if it reduces transplant complications, such as rejection, in patients who have blood diseases. To participate in this study, you must have a well-matched donor; you and your donor must be between 4 and 80 years old; and you must not be a candidate for immunosuppressive therapy. This study is located in Bethesda, Maryland.
All Ages
Recruiting
Maryland
Have you received a stem cell transplant? This study aims to monitor the long-term health of patients who have received a donor stem cell transplant from the NIH Clinical Center. To participate in this study, you must be between 10 and 80 years old and had your transplant more than 3 years ago. This study is located in Bethesda, Maryland.
All Ages
Accepting Healthy Volunteers
Recruiting
Are you scheduled for a stem cell transplant with cord blood? This study will assess the safety and effectiveness of certain cord blood transplants. The study will help researchers learn the best methods for collecting, storing, and using cord blood in transplants. To participate in this study, you must have a disorder that compromises your body’s ability to make blood cells. This study is located in Bethesda, Maryland.
All Ages
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
Recruiting
Utah
Are you an adult with polycythemia vera or thrombocytosis? This study aims to find a new treatment or cure for polycythemia vera and thrombocytosis by locating genes and their changes, or mutations, that may contribute to these disorders. To participate in this study, you must have polycythemia vera with elevated hemoglobin (higher than 18 in men and 16 in women) or thrombocytosis with an elevated platelet count (higher than 450,000). This study takes place in Salt Lake City, Utah.
All Ages
Recruiting
Massachusetts
This study is testing whether a new imaging technique can help healthcare providers diagnose venous thromboembolism. To participate in this study, you must be at least 18 years old and diagnosed with venous thromboembolism. This study takes place in Boston, Massachusetts.
Adult, Older Adult
Recruiting
Pennsylvania
Are you a healthy adult between 40 and 90 years old and willing to help research? This study will test whether a new device called the OsciPulse system, which is designed to repeatedly compress a person’s legs, can improve blood flow through the legs to prevent or treat varicose veins. To participate in this study, you must be 40 to 90 years old and healthy. This study takes place in Philadelphia, Pennsylvania.
Adult, Older Adult
Accepting Healthy Volunteers