Active clinical trials for "Coronary Artery Disease"

The risk of thrombotic complications after implantation of drug-eluting stents (DES) may be increased in patients with diabetes mellitus (DM) or metabolic syndrome (MS). It is recommended that all patients take an association of aspirin and clopidogrel for several months after DES implantation to reduce this risk. However, the biological efficacy of current antiplatelet therapies has not been studied prospectively and specifically in DM or MS patients. Our aim is to study the biological efficacy of an association of aspirin and clopidogrel (600 mg loading dose followed by 75 mg maintenance dose) using an assay measuring ex vivo shear-induced platelet aggregation (SIPA), along with other assays measuring platelet activation and aggregation, in patients with DM, MS, or no DM/MS. Patients with stable coronary artery disease and successful DES implantation in native coronary arteries will be eligible. They will be stratified at entry according to their metabolic status (DM, MS, or no DM/MS). Measurements will be performed 6-24 hours after clopidogrel loading dose (acute effects) and 4 months later under clopidogrel maintenance dose (chronic effects). Study end-points: A. Primary biological end-point: To compare SIPA levels in DM vs. MS vs. no DM/MS patients. B. Secondary biological end-points: To compare the results of other tests of platelet aggregation/activation in DM vs. MS vs. no DM/MS patients. To compare the acute (6-24 hours after clopidogrel loading dose) and chronic (4 months later) results of the above mentioned tests. These comparisons will be performed in the overall population and in each group (DM, MS, no DM/MS). C. Secondary clinical end-points: To study the relationship between SIPA levels (and the other tests of platelet aggregation/activation) and the occurrence of: Periprocedural myocardial infarctions Major adverse cardiac events (cardiovascular death, myocardial infarction or ischaemia-driven target vessel revascularization) at 4 and 12 months after stent implantation. We, the researchers at Assistance PUBLIQUE - HOPITAUX de Paris, anticipate our study may help improve our knowledge of the efficacy of current antiplatelet therapies in DM and MS patients treated with DES.

The primary objective is to evaluate the safety and feasibility of using M118 as an anticoagulant in the target population of subjects with stable coronary artery disease (CAD) undergoing percutaneous coronary intervention (PCI). The secondary objectives are to evaluate the effect of M118 on procedural indices including procedure success, abrupt closure, post-procedure TIMI flow, and catheter thrombus. Substudy Primary Objective The primary objective of the substudy is to characterize the pharmacokinetic and pharmacodynamic profile of M118 among subjects with stable coronary artery disease undergoing elective PCI.

Rationale: Patients with severe ventricular dysfunction and coronary disease have high morbidity and mortality. They may benefit from revascularization, but have significant peri-operative morbidity and mortality. Positron emission tomography (PET) imaging with F-18-fluorodeoxyglucose (FDG) can detect viable myocardium that may recover from revascularization in such patients. It is unclear whether use of FDG PET in this population is improves outcome or is cost-effective. Objectives: The principal aim is to determine whether FDG PET-guided therapy is effective versus standard care. Secondary objectives are to determine whether FDG PET-guided therapy improves LV function, quality of life and is good value for money versus standard care.

To study the effect of red wine, beer and fruit juice on endothelial function in patients with coronary Heart disease.

The purpose of this study is to demonstrate that Iodixanol 320 is associated with a lower incidence of contrast-induced nephropathy (CIN) when compared with hyperosmolar contrast medium Iomeprol 350 in patients with impaired renal function undergoing percutaneous coronary interventions (PCI).

The KYOTO HEART Study is to assess the add-on effect of valsartan, an Angiotensin-Receptor Blocker, on top of the conventional treatment in high risk patients in Japan with hypertension in terms of the morbidity and mortality.

To test a practical, theory-based intervention to achieve long-term behavior change for postmenopausal women with Type 2 diabetes at high risk for developing coronary heart disease (CHD).

The purpose of this study is to determine which of two treatments, Warfarin or aspirin, is better for preventing death and stroke in patients with poor heart function. We are now transitioning into the sub-analysis part of the WARCEF patient data. The study has recently completed data analysis for its Primary Aim. All randomized patients have completed their follow up. All study related procedure as per the protocol has been completed. We are now in the extension phase of the study to obtain more patient data to address further aims of the study. No new procedures are performed and data already in place at the sites will be collected (EKG and echocardiograms). The aims for this study extension are: To assess progression of cardiac dysfunction over time among heart failure patients To correlate prognosis with cardiac dysfunction

To determine if supplements of vitamin C, vitamin E, beta-carotene, and B-vitamins (a combination of folic acid, vitamins B6 and B12) reduce risk of major cardiovascular events in high risk women with a prior history of atherosclerotic cardiovascular disease. The trial is a companion to the Women's Health Study (WHS), a primary prevention trial of vitamin E and aspirin in a low risk population of women.

To determine if estrogen replacement therapy, with or without low dose progesterone, slows progression or induces regression of coronary atherosclerosis in postmenopausal women.