Clinical Trials

Do you have a heart or blood vessel disease, such as peripheral artery disease? This study aims to collect data and samples from people who have a heart or blood vessel disease. This may include blood tests, ultrasound exams, and heart and lung tests. Family members and healthy people may also participate. The results may help researchers better understand PAD and other heart and blood vessel diseases. Participants must be at least 2 years old. Women who are pregnant may not take part in some study activities. This study is located in Bethesda, Maryland.

Do you or a first-degree relative have a condition that raises the risk of heart disease? This study aims to test the heart and lung function of people who have a genetic or metabolic disease that raises their risk of heart disease. Participants in this study must be between 2 and 100 years old. This study is located in Bethesda, Maryland.

Do you get less than 7 hours of sleep each day and take medicine for opioid use disorder (OUD)? This study is looking at how the brain systems that control sleep can affect medication-assisted treatment in people who have opioid use disorder. The study will test whether suvorexant can help improve sleep and reduce stress without interfering with treatments for OUD. To participate in this study, you must be 21 to 65 years old. This study takes place at various locations in Baltimore, Bel Air, and Elkton, Maryland.