Clinical Trials

The goal of this mechanistic clinical trial is to learn about the effects of medications called soluble guanylyl cyclase stimulators on vascular function and markers of kidney and brain injury in patients having heart surgery. This will provide important information to determine the underlying reasons that patients have some kidney and brain function problems after having heart surgery.

Health organizations recommend exercise in an intensity based manner to promote cardiovascular adaptation and prevent disease. Metformin is a common anti-diabetes medication that reduces future type 2 diabetes and cardiovascular disease (CVD) risk. However, the optimal dose of exercise to be combined with metformin for vascular health remains unknown. The purpose of this study is to evaluate whether combining high or low intensity exercise with metformin has the potential to outperform either exercise intensity alone on blood flow across the arterial tree as well as impact insulin action in individuals with metabolic syndrome.

Have you been diagnosed with carotid artery stenosis? If you are over the age of 18 and have had an image scan for a diagnosis of carotid artery stenosis, you may be able to participate in this study. Researchers are trying to learn more about the ability of positron emission tomography (PET) scans to identify people with carotid artery stenosis who have no symptoms but who may be at risk of having a stroke. The study is taking place in Boston, Massachusetts.

Are you and adult diagnosed with hypertrophic cardiomyopathy? If so, you may be able to participate in this study where researchers are studying whether exercise helps cardiomyopathy symptoms. You may be able to participate if you are between 18 and 80, have cardiomyopathy, and are able to participate in a 24-week moderate exercise training program. The study is taking place in San Francisco, California.

Are you at least 18 years old with chronic anemia? Researchers in this study are trying to find a better treatment for chronic anemia and are testing a new medication to see if it works well. To participate, you must be at least 18 years old and have chronic anemia. This study is taking place at the National Institutes of Health Clinical Center.

Have you had a baby within the past month? If so, you may be able to participate in this clinical trial where researchers are testing out a home visitation program for women who have recently given birth. Participants in the study will be visited by trained nurses who will help with soothing, feeding, sleep, and physical activity. To participate, you must be at least 18 years old and have reliable access to the internet. Mother and infant must also be enrolled in the Nurse Family Partnership program. This study is taking place in Altoona and Danville, Pennsylvania.

This project will determine the health impact of parenthood on people with cystic fibrosis (CF). The study team will use retrospective data to provide relatively immediate evidence on parenthood's effect on pulmonary health.

Are you an adult with atrial fibrillation? In this study, researchers are comparing a continuous direct oral anticoagulation (DOAC) use versus time-limited (1 month) DOAC guided by an AF-sensing Smart Watch (AFSW) for persons with atrial fibrillation and a moderate risk of stroke. Participants must be between the ages of 22 and 85 and have a history of atrial fibrillation. The study is taking place at locations in California, Colorado, Florida, Georgia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Texas, Virginia, Wisconsin, and Washington, D.C.

Are you interested in participating in a clinical trial on heart health? In this trial, researchers are testing ways to help lower blood pressure and reduce cardiovascular disease as people age. To participate, you must be 65 to 80 years old, and you must not have high blood pressure or take medication for high blood pressure. The study is taking place in Hershey, Pennsylvania.

Are you an adult with carotid artery stenosis (CAS)? Researchers in this study want to learn more about the plaque that causes atherosclerosis in patients with carotid artery stenosis. To be in the study, you must be at least 18 years old and will undergo a carotid positron emission tomography (PET)/magnetic resonance imaging exam so researchers can lean more on the new PET imaging approach for risk prediction in these patients. The study is taking place Saint Louis, Missouri, and in Los Angeles, California.