
Study to Evaluate the QT / QTc Interval Prolongation Potential of Vericiguat
Coronary Artery DiseaseThe primary objective of this study was to investigate whether there is a clinically meaningful effect on QTc change from baseline relative to placebo after administration of 10 mg at steady state in patients with stable CAD (coronary artery disease).

An mHealth Intervention to Improve Medication Adherence and Health Outcomes
Coronary Heart DiseaseInvestigators evaluated the efficacy of a pilot-tested mHealth intervention to improving medication adherence and health outcomes among patients with coronary heart disease.

Using Feedback Reports to Improve Medication Adherence
Coronary Artery DiseaseAdherenceThe purpose of this research study is to improve statin medication adherence among Veterans with coronary artery disease with poor adherence to medications. The investigators are testing if newer technology pill bottle devices linked with individual feedback and/or social incentive strategies can improve medication taking behavior.

Effect of CYP3A Genetic Polymorphisms on the Pharmacokinetics of Atorvastatin
Coronary Heart DiseaseThe aim of the study is to investigate the effects of CYP3A polymorphisms on the pharmacokinetics of Atorvastatin in Chinese subjects with coronary heart disease.

Aspirin Resistance in Coronary Artery Disease
Coronary Artery DiseaseThe purpose of this study is to evaluate possible mechanisms of aspirin resistance at a molecular level in aspirin-treated patients with coronary artery disease. We hypothesize that certain patient characteristics associate with aspirin resistance. In addition, we will compare the effects of enteric-coated aspirin and chewable aspirin.

Study of Oral Rapamycin Plus Bare Metal Stents vs Drug Eltuting Stents
Coronary Heart DiseaseCoronary RestenosisIn a previous randomized comparison oral sirolimus plus bare metal stent compared to bare metal stent implantation alone demonstrated at one year of follow up a significant reduction of angiographic and clinical parameters of restenosis (ANMAT resolution number 3366 from June 2004 and Rodriguez A et al JACC,2006,47,1522-1529). In addition previous reported registries from our group with Drug Eluting Stents showed similar amount of reduction in clinical parameters (not angiographic)of restenosis (ERACI III, Rodriguez A et al EuroIntervention 2006,2:53-60). Taking in account that 8.3% of patients treated with oral rapamycin plus Bare Metal Stents(ORAR II Trial JACC 2006)and 8.8% of patients treated with DES developed clinical restenosis (ERACI III Registry, EuroIntervention 2006) the investigators sought to compare differences in overall cost with both revascularization strategies at 1, 2, 3 and 5 years of follow up assuming that safety and efficacy clinical end points would be similar.

Effect of Grape Seed Extract Plus Ascorbic Acid on Endothelial Function
Coronary Artery DiseaseA pilot study of 15 subjects will be conducted to confirm an acute effect of grape seed extract on endothelial function. We then will perform a a randomized, double blind, placebo controlled crossover study designed to investigate the benefit of grape seed extract/vitamin C treatment on endothelial function. Participants (n=40) will take a food supplement containing 450 mg of grape seed extract and 1500 mg of vitamin C or matching placebo for four weeks and then cross over to the alternative treatment (active supplement or placebo) for four weeks. We will examine endothelial function before and after each of the two treatment periods. The study will provide information about the vascular effects of these compounds.

Exercise Training, Insulin Resistance and Coronary Artery Disease
Coronary Artery DiseaseGlucose IntoleranceThe purpose of this study was to determine the effects of exercise training on insulin resistance in subjects with coronary artery disease independent of changes in weight, diet, or the effect of an acute bout of exercise. We hypothesized that subjects with CAD and high normal or impaired glucose tolerance performing 12 weeks of aerobic exercise training while on a non weight-reducing diet, would have a greater decrease in insulin resistance than controls measured at 72 hours following their last bout of exercise.

Improving the Quality of Patient Care by Using a Clinical Expert System.
HypertensionDiabetes3 moreAim: To investigate the quality of history taking by physician and computer-based system. Patients: 100 inpatients presenting at the RBK for the first time and treated in the departments of nephrology and cardiology. Methods: The information obtained by the computer based system is compared with the information acquired by conventional history taking. Study endpoint is the comparison of historical data organized according to the elements in a standard medical history on a patient-by-patient basis. Study procedure History taking is performed by physicians according to the guidelines of the RBK. Within 2 days thereafter the patient is interviewed with help of the CLEOS system with the support of a study nurse.

Walnut Consumption, Endothelial Function, and Biomarkers
Coronary Heart DiseaseType 2 DiabetesThis study will examine whether a twelve-week intervention with one ounce (28 g) per day of walnuts improves endothelial function measured non-invasively using finger probe (EndoPat-2000) in people with coronary heart disease or type 2 diabetes.