Active clinical trials for "Coronary Disease"

Clinical evaluation of the Orsiro LESS in subjects requiring coronary revascularization with Drug Eluting Stents (DES). 500 subjects will be enrolled in this registry. The sample size maybe increased in order to reach the subgroup sizes (Diabetes, small vessel, AMI and CTO).

The purpose of this study is to describe the composition of bile acids and the gut microbiota comparing two populations: patients with coronary atheroma and the healthy subjects. Our hypothesis is based on the demonstration of the anti atherogenic and anti inflammatory effect of certain bile acids, and the role of the gut microbiota in the metabolic regulation.

In-stent restenosis is a major reason of coronary heart disease recurrence .Even in drug eluting stent(DES), Restenosis rate could be up to 10% in diabetes and complex lesions though it was about 3-5% in general. It is particularly important that in-stent restenosis after implantation was early diagnosed and detected. The evaluation of OCT imaging is more accurate for narrow area calculation, more clear for narrow organization structure and more specific for detecting tissue types.It is currently the best way for restenosis histologic diagnosis.But it has many weakness such as the higher cost,an invasive test, expensive instrument, relatively complicated to operate,and etc.In this study, OCT image was regard as the "gold standard" of stent restenosis. The improvement of spatial resolution of Gemstone CT can effectively improve the imaging quality and the measurement's accuracy of coronary artery stents.The diagnostic value of in-stent restenosis of Gemstone CT is higher than of the 320-detector row spiral CT. To a certain extent, the gemstone CT can replace OCT for examining the in-stent restenosis. This study will examine the degree of in-stent restenosis by the gemstone CT and the 320-detector row spiral CT and compare the two ways on the basis of the result of OCT.

The investigators propose to correlate 1) cardiac MRI pericardial adipose volume, 2) the presence of pericardial monocytes and 3) circulating immune biomarkers in persons with and without CHD and HIV infection compared to seronegative controls with known CHD. The investigators aim to test the hypothesis that higher amounts of pericardial fat deposition and increased presence of monocytes within this adipose tissue are associated with underlying coronary artery disease in persons with HIV infection as measured by cardiac MRI.

Clopidogrel besylate (CB) is not differentiated relative to the orignal clopidogrel hydrogen sulfate (CHS) in the pharmacokinetics and in antiplatelet potency in healthy volunteers. In addition,CB exhibits similar pharmacodynamic properties compared to CHS in patients with a history of acute coronary syndrome (ACS) and in patients with ACS undergoing percutaneous coronary intervention (PCI). However, there is a lack of data on the clinical efficacy and safety of this salt to the original salt in patients with cardiovascular disease. The aim of this study is to investigate the clinical efficacy and safety of CB in relation to that of CHS in patients eligible to receive clopidogrel.

In the present study the investigators will measure the extent of coronary artery disease via coronary angiography and the correlating risk factors.

Coronary heart disease (CHD) and heart attacks pose a serious health risk to men and women, however little information is available about how evidence-based therapies are incorporated appropriately into routine clinical practice in China. In addition, basic data and evidence about safety and efficacy of treatment for AMI is limited. By consecutively recruiting AMI patients in 40 hospitals of different levels, this study will examine various real-life factors, that may affect patients recovery after a heart attack. Practical guidelines and risk model for AMI patients will be established based on the findings, to improve patients outcomes in future finally.

This registry is a clinical post-market evaluation of the Orsiro LESS in subjects requiring coronary revascularization with Drug Eluting Stents (DES).

The overall objective of this integrated analysis is to evaluate the clinical safety and efficacy of long-term treatment with darapladib enteric coated tablets, 160mg, as compared to placebo when added to standard of care in subjects with clinical manifestations of cardiovascular disease (chronic coronary heart disease (CHD) and post Acute Coronary Syndrome (ACS)). With respect to efficacy, the key purpose of this integrated analysis is to evaluate the effects of darapladib on the following endpoints: urgent coronary revascularization for myoacrdial ischemia, fatal/non-fatal stroke, time to subsequent Major Adverse Cardiovascular Event (MACE), and heart failure requiring hospitalization. The first occurrent of MACE, Major and total coronary events as well as the individual components of MACE will also be evaluated descriptively.

Single nucleotide polymorphisms at codon 46 and 79 of the gene encoding for the ß2 adrenergic receptor (ß2AR) modify its pharmacological properties and may alter the response to ß2AR agonists. The goal of the present study was to evaluate the role played by the Arg16Gly and Gln27Glu polymorphisms on isoproterenol induced relaxation of internal mammary arteries segments ex-vivo. Internal mammary leftover segments were collected from 96 patients undergoing coronary artery bypass graft operation. Four rings that were prepared from each specimen were allowed to reach equilibrium with physiological Krebs solution prior to precontraction with U46619. Using the organ bath technique, cumulative dose response curve of isoproterenol was constructed and mean EC50 calculated for each patient.