View clinical trials related to Cardiovascular Disease.
Filter by:Abbott Vascular (AV) obtained marketing approval for the XIENCE PRIME Everolimus Eluting Coronary Stent System (XIENCE PRIME EECSS) in China from the China Food and Drug Administration (CFDA) on August 10th, 2011. This prospective, observational, open-label, multi-center, single-arm, post-approval study is designed to evaluate the continued safety and effectiveness of the XIENCE PRIME EECSS in a cohort of real-world patients receiving the XIENCE PRIME EECSS during commercial use in real-world settings in China. This study has no primary outcome measure. All observations are of equal weight.
Rheumatoid arthritis patients are at increased risk of cardiovascular disease because of systemic inflammation that can persist even in patients with well-controlled joint disease. We hypothesize that adding an anti-tumor necrosis factor medication, adalimumab, to standard non-biologic therapy for rheumatoid arthritis will improve endothelial function (reduce cardiovascular risk) in these patients. The design of the trial is as follows: 18 month prospective, randomized, double-blind crossover trial comparing the addition of adalimumab to the addition of placebo. The primary endpoint is a change in endothelial cell function, as detected by brachial artery FMD, at 6 months of adalimumab treatment compared to 6 months of placebo.
HIV positive patients have a two fold increased risk of developing cardiovascular disease (such as heart attacks and strokes). Cardiovascular disease appears to be due in part to both HIV and the side effects from anti-HIV medications. Abacavir (an important component of current HIV treatment regimens) is one medication shown to be associated with an increase the risk of heart attacks in some studies. The mechanism by which abacavir does this is unknown. We hypothesise that abacavir is leading to heart disease by interacting with platelets, which then form blood clots within the arteries supplying the heart, the subsequent blockage of the artery causing a heart attack. This study aims to determine if abacavir increases the activity (or "stickiness") of platelets, and thus provide evidence as to how it may be promoting heart attacks. It will consist of 23 HIV positive men who currently have well controlled HIV. Participants will take abacavir for 15 days in addition to their usual anti-HIV medications. A blood sample to assess platelet activity will be taken at baseline, following the 15 days of therapy (i.e. at the time of maximal abacavir effect) and again after a 28 day washout period (to determine if any effects are reversible).
The purpose of this study is to investigate the individual and combined effects of dark chocolate/cocoa and almonds on lipids, lipoproteins, antioxidant defense, lipid peroxidation, phenolic acids, inflammatory status, blood pressure and arterial health. It is hypothesized that dark chocolate/cocoa and/or almonds will favorably affect lipids, lipoproteins, antioxidants, inflammatory status, blood pressure and arterial health compared to a healthy American control diet; however, the effects will be greater when dark chocolate/cocoa and almonds are consumed together versus consumption of each food individually.
The purpose of this study was to test the effect of chronic consumption of Quercetin 500 mg tablets on blood uric acid and other biomarkers in adult males.
The purpose of this study is to monitor the impact of exercise training on cardiac functions and lipoprotein lipids.
Sudden cardiac death (SCD) due to a ventricular arrhythmia is a serious cause of cardiovascular death in Canada. The implantable cardioverter defibrillator (ICD) offers high-risk patients a treatment option to reduce the incidence of SCD by delivering an internal shock to restore a normal rhythm, if needed. Definitive evidence has established the effectiveness of the ICD for reducing mortality when used as prophylaxis for SCD (a primary prevention indication). Approximately 3,700 new candidates accrue annually. Practice guidelines define the criteria to determine patient ICD candidacy for primary prevention. However, in addition to SCD risk, ICD candidates may have chronic diseases such as diabetes, renal insufficiency, hypertension, and atrial fibrillation. Thus, balancing the benefits and risks of an ICD can become complex, particularly when competing mortality risks are present. Research has recognized human costs associated with device complications and shocks affecting psychological, health related quality of life (HRQL), and morbidity outcomes. The complexities surrounding the long-term benefits/risks, complications, replacements, and shocks, warrant decision support to prepare patients to make decisions. In Canada, there is no clear framework to support patients' decision-making in the context of ICD treatment options. Decision support, using a decision aid, could moderate treatment related uncertainty and prepare patients to make active, informed, quality decisions. Objectives: 1) develop a decision aid for ICD candidates to support quality decision-making (informed, deliberate, values-based choices), 2) to evaluate the decision aid, and 3) to determine the feasibility of conducting a trial.
A prospective, post market, non-randomized study to evaluate the reduction in time to interrogation for patients with St. Jude Medical remote care compatible devices interrogated by the unpaired Merlin@home transmitter in the Emergency Department (ED). Two sites will enroll up to 100 patients total. Expected duration of the study is 6 months. Once enrolled the patient will participate in the study for the duration of the Emergency Department stay, until discharged or admitted to the hospital.
As individuals age, their physical activity decreases and sedentary time increases. Even small changes in these two behaviors can greatly decrease risks for several major health problems, including cardiovascular disease, diabetes, and many cancers. Studies that use pedometers to encourage walking have successfully increased physical activity, but do not address sedentary behaviors such as television watching. The investigators propose to use a novel pedometer-like device (Jawbone Up) that encourages both increased physical activity and decreased sedentary time. First, the investigators will recruit 10 adults to participate in a brief intervention for six weeks. They will wear the wrist-based activity monitor and use a mini-tablet device to see feedback on their activity and sedentary time. They will also receive brief counseling weekly. The investigators will use this first study to investigate the basic feasibility of the intervention materials. Next, the investigators will recruit 20 adults and randomize them to receive the intervention for 12 weeks or to a waiting list. Here, the investigators will test the intervention with refinements made based on participant responses from the first small study. Our primary outcomes will be measures of feasibility and acceptability across all parts of the study. The investigators hypothesize that the intervention will be feasible and acceptable to the participants. The investigators will also measure physical activity, sedentary behavior, fitness, body fat, and psychological feelings of motivation.
VIP-E is a one-arm, open-label, 40-52 week extension study to continue or cross over subjects of the VIP study (# 814278) to active drug (adalimumab) to determine if there is sustained improvement in vascular inflammation, lipid metabolism, and inflammatory markers. VIP-E extends VIP study procedures for 40-52 weeks including questionnaires, physical exams, blood and urine samples, lab tests, one additional FDG-PET/CT scan, and adalimumab injections following FDA-approved psoriasis treatment regimen.