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93 active trials for Cardiovascular Disease

Genomics, Environmental Factors and Social Determinants of Cardiovascular Disease in African Americans Study (GENE-FORECAST): Sodium Intervention Trial (SIT)

Background: Hypertension is a risk factor for heart disease. Low-sodium diets rich in fruits, vegetables, and other healthy foods are a good way to reduce blood pressure in people with hypertension. Researchers want to learn more about why African Americans seem to have the greatest benefit from certain dietary interventions. Objective: To better understand the body s response to adding more salt to the diet. Eligibility: U.S.-born African American adults ages 21 to 65 who are in good general health and took part in the GENE-FORECAST. Design: Participants will be screened with a medical history and physical exam. If needed, they will take a pregnancy test. These tests will be repeated during the study. Each day for 2 weeks, participants will take 3 capsules that contain either placebo or salt. Then they will take no pills for 3 weeks. Then they will take placebo or salt capsules for 2 more weeks. Participants will talk about the foods and drinks they have consumed over the past 24 hours. They will take a survey about their physical activity and sleep. Participants will complete taste tasks to obtain their responses to sweetness or saltiness. Sucrose and salt detection thresholds and preferences will be assessed. Participants will give blood and urine samples. Saliva samples will be collected from their mouth by passive drool or by spitting into a sterile tube. Skin samples will be collected from behind their ears and the inner part of their elbow, using sterile swabs. Participants will get kits to collect stool samples at home. Participants will have 4 study visits over 7 weeks.

Start: January 2021
CT COMPARE: CT Coronary Angiography to Measure Plaque Reduction

Background: Coronary artery disease causes plaque in arteries. This can cause stroke or heart disease. Drugs called statins might shrink plaque. Researchers want to study how CT scanning can determine if an individual s arterial plaque has decreased while taking statins. Objectives: To measure the change in coronary artery plaque volume in people treated with high-intensity statin therapy using CT and MRI scans. To study the metabolic activity of plaque in arteries. To determine how well plaque measurements from heart CT scans can be replicated. Eligibility: Men ages 40-75 and women ages 40-75 who are good candidates for statin treatment Design: Visit 1: participants will be screened with: Medical history Blood tests Heart MRI and CT scan: An IV inserted into an arm or hand vein removes blood and injects contrast, and medicine if needed. Participants lie on a table that slides into a machine that takes pictures of the body. For the CT scan, if their heart rate is too high, they get medicine to lower it. They breathe in a special way, holding their breath for 5 seconds. Participants will begin high-intensity statin treatment. Participants will have 7 more visits over 3 years. All visits include blood tests and medication review. Some may also include: Statin treatment adjustment CT scan MRI scan Physical exam Participants may join the PET Substudy. This includes 5 more visits during the study. These include: Getting an IV in an arm vein Blood tests PET scans: They fast 12 hours before. Participants may join the Reproducibility Substudy if they had a slow heart rate during their first CT scan. This includes 1 additional heart CT scan 4 weeks later.

Start: April 2016