View clinical trials related to Atherosclerosis.
Filter by:The purpose of this study is to assess the safety, tolerability, serum concentrations and pharmacodynamic effects on serum low-density lipoprotein (LDL) cholesterol of single and multiple subcutaneous and intravenous doses of BMS-844421 in healthy subjects (SAD) and in subjects with elevated cholesterol (MAD).
We will study the hypothesis that long-term Tekturna treatment will improve endothelial function and the production and function of endothelial progenitor cells (EPCs) in patients with early atherosclerosis. Specifically, long-term Tekturna treatment will increase the Reactive Hyperemia Peripheral Arterial Tonometry indexes and increase the numbers and the function of circulating endothelial progenitor cells, compared to placebo, in association with a reduction in inflammation and oxidative stress.
This study will examine how an approved drug (TriLipix), when used in combination with a statin (a drug that lowers blood cholesterol levels), affects the makeup of plaque. Patients will be randomly assigned to receive either the study treatment (TriLipix plus Atorvastatin) or the comparison treatment (a placebo). Comparison of the effect on the makeup of plaque will be done by using coronary artery computed tomography angiography (CTA), which all participants will have at enrollment and at the end of the study (18 months after enrollment).
Patients enrolled will need treated with an IVUS- VH (intravascular ultrasound-derived virtual histology) which is an arterial stent procedure, that involves threading a tiny wire into the artery, followed by a balloon, a stent, or other device to treat a blocked artery, and often (though not always), a special ultrasound catheter to take pictures of the inside of the artery. Participants in the study, will have an additional procedure performed: a tiny tube will be advanced into the heart artery to collect a blood sample for research purposes, and a blood sample will be collected from the femoral (thigh) artery through the tube that will be placed there as a standard part of having this procedure. The blood that is collected will be analyzed for markers of inflammation or irritation in the blood (c-reactive protein, myeloperoxidase, Monocyte chemotactic protein-1), as well and a gene called Matrix Metallopeptidase 3, which is believe to influence the progression of plaque on the walls of arteries and the progression of coronary artery disease. .
The investigators hypothesize that obstructive sleep apnea (OSA) may lead to increased formation/accumulation of advanced glycation ends (AGEs), and that the increase in AGEs is contributed in part by increased insulin resistance. The investigators further hypothesize that AGEs contribute to vascular endothelial damage and ultimately atherosclerosis in OSA. The objectives of this study are: 1. To explore the relationship between insulin resistance and AGEs in OSA 2. To study the relationship between AGE and vascular endothelial dysfunction in OSA 3. To study the relationship between AGE and early atherosclerosis in OSA
The purpose of this study is to determine whether heme oxygenase 1 induction by heme arginate treatment is of influence on adenosine induced vasodilation in healthy individuals.
The aim of this study is to determine whether optimal medical treatment can postpone carotid endarterectomy.
To evaluate the safety and effectiveness of the 2.25 mm XIENCE V® Everolimus Eluting Coronary Stent System (XIENCE V® EECSS) in improving coronary luminal diameter in subjects with ischemic heart disease due to a maximum of two de novo native coronary artery lesions in small vessels, each in a different epicardial vessel.
Rosuvastatin is a drug used to lower cholesterol, which also has other cardiovascular benefits. The goal of this project is to determine if rosuvastatin is effective at slowing the development of heart disease in people with HIV. We expect that after 2 years of treatment people treated with rosuvastatin will show significantly better results than people treated with a placebo.
The purpose of this study is to evaluate the effect of ezetimibe coadministered with simvastatin compared with simvastatin alone when administered for 12 weeks on endothelial function as assessed by brachial artery reactivity testing (BART) using high-frequency ultrasound to image the brachial artery vasomotor response to a flow-mediated stimulus (high-shear stress) in subjects with high cholesterol. The secondary objectives include evaluation of nitroglycerin-induced vasodilation. In addition, lipid parameters (low-density-lipoprotein cholesterol [LDL-C], high-density-lipoprotein cholesterol [HDL-C], triglycerides [TG], total cholesterol [TC]) and C reactive protein (CRP) will be assessed by treatment group.