View clinical trials related to Coronary Artery Disease.
Filter by:XIENCE V USA is a prospective, multi-center, multi-cohort post-approval study. The objectives of this study are - To evaluate XIENCE V EECSS continued safety and effectiveness during commercial use in real world settings, and - To support the Food and Drug Administration (FDA) dual antiplatelet therapy (DAPT) initiative. This initiative is designed to evaluate the composite of all death, myocardial infarction (MI) and stroke (MACCE) and the survival of patients that are free from Academic Research Consortium (ARC) definite or probable stent thrombosis (ST) and that have been treated with drug eluting stents (DES) and extended dual antiplatelet therapy.
This study is being done to see if the blood pressure lowering effect of an approved drug nebivolol is comparable to that of another approved drug carvedilol for the treatment of hypertension in patients who have coronary artery disease.
The well established importance of regular aspirin administration stands on firm grounds, as large meta-analyses have shown this therapy to significantly reduce the risk of death. However, not all patients benefit of aspirin administration to the same extent, thus high-lighting a sub-population of patients with inadequate platelet response to ASA. The mechanisms underlying reduced ASA efficacy remain elusive. A recent report has suggested that platelets, long believed to be incapable of de novo protein synthesis, may retain their ability to form the cyclooxygenase enzyme, once it has been inactivated by aspirin. This may explain the inefficacy of the drug to induce sustained platelet inhibition in certain patients. The current study aims to evaluate, in patients suffering from stable coronary artery disease, the stability of platelet inhibition by aspirin during the normal once daily dosing regimen.
The well established importance of regular administration of antiplatelet drugs stands on firm grounds, as large meta-analyses have shown these therapies to significantly reduce the risk of death. Plavix® (clopidogrel) is widely used following coronary angioplasty, to reduce the risk of periprocedural thrombotic complications, for up to one year. As the current recommendations suggest clopidogrel use for no longer than one year, the drug is normally discontinued within that period. In the limited state of knowledge on antiplatelet drug withdrawal, an early sound of alarm has risen from early thromboembolic complications reported after the interruption of antiplatelet treatment used in prevention of ischemic vascular disease. Although little information is available, discontinuation of thienopyridines has been associated with increased thromboembolic complications, mainly acute stent thrombosis. These complications may signal a platelet sensitization effect to aggregating stimuli by antiplatelet drugs taken chronically. The current study aims to evaluate the impact of clopidogrel discontinuation on platelet function, in order to shed light on underlying mechanisms leading to increased risk of acute thrombo-occlusive events.
The aim of the study is to assess the safety and efficacy of a Paclitaxel-eluting PTCA-balloon in combination with bare-metal stenting for treatment of chronic total occlusions in native coronary arteries with reference diameters between 2.5 mm and 4.0 mm.
This study will demonstrate whether patients with prognostically-significant myocardial abnormalities detected with AI-700 contrast ECHO have a rate of cardiac death or MI that is higher than that of patients with normal AI-700 contrast ECHO.
How does PET myocardial perfusion imaging involving CT angiography and measurement of coronary flow reserve affect patient care.
This study evaluated and optimized settings for, and evaluated the performance of, AI-700-enhanced echocardiographic imaging on several ultrasound imaging platforms, as well as collected additional safety data for AI-700 in healthy volunteers and stable cardiac patients.
Autologous stem cells may improve myocardial regeneration after intracoronary administration in patients with acute myocardial infarction. The primary hypothesis of this prospective, placebo-controlled, double-blind trial is that the increase of ejection fraction determined by magnetic resonance imaging between baseline and 6 months follow-up is superior in active treated patients compared to patients receiving placebo. The study includes an integrated pilot phase of 40 patients for evaluation of left ventricular ejection fraction determined by cardiac magnetic resonance imaging. Based on the data of this analysis the final sample size will be calculated. The primary endpoint is the improvement in left ventricular ejection fraction with an assumed 2.5% higher improvement in the cell treated population compared to the placebo treated group.
The purpose of this study is to determine whether adjunction of intravenous anticoagulant therapy (enoxaparin, HNF, bivalirudin) to antiaggregation with clopidogrel and aspirin improves in-hospital results of percutaneous transluminal coronary angioplasty (ptca) in selected patients.