Active clinical trials for "Myocardial Ischemia"

The primary objective of this study is determine the safety and performance of the Agent™ Paclitaxel-Coated PTCA Balloon Catheter compared to the SeQuent® Please Paclitaxel-Releasing Coronary Balloon Catheter for the treatment of patients with narrowed previously-stented coronary arteries (in-stent restenosis). The performance will be determined at six months post-procedure by quantitative coronary angiography (QCA) to measure Late Lumen Loss (LLL) in the re-opened stented segment. QCA results will be assessed by an independent, blinded angiographic core lab. Study statistical hypothesis: The loss of in-stent luminal diameter at six months after treatment of the restenosed stent with the Agent™ study device is not larger than the respective LLL after treatment with the SeQuent® Please control devices, i.e. study device is non-inferior to the control device with respect to LLL.

This study of 402 cases of stable angina subjects who were diagnosed as Coronary Heart Disease (CHD) is a randomized, blank controlled, multi-center clinical study. Subjects who are taking standard treatment with stable symptoms will receive a 24-hour ambulatory electrocardiogram (ECG) (Holter) examination. They will be randomly divided into two groups. The nicorandil group will receive nicorandil 5 milligram (mg) (3 times a day = tid) on top of the standard treatment for 12 weeks, while the control group will stay on standard treatment. Nitrates and beta blockers need to be maintained on a stable dose. Other drugs that do not affect the primary endpoint may be adjusted per investigators decision.

The purpose of this study is to evaluate the safety and cholesterol lowering effects of MPSK3169A when given as subcutaneous (SC) injections over a 24-week period to patients with a high risk of cardiovascular events and LDL-c levels well above goal.

To establish the safety and efficacy of the commercially approved XIENCE Family Stent System (inclusive of XIENCE PRIME, XIENCE V, XIENCE Xpedition and XIENCE PRO [for use outside the United States [OUS] only]) in subjects with unprotected left main coronary artery disease by comparing to coronary artery bypass graft surgery.

Clopidogrel can reduce risk of cardiovascular disease by inhibiting platelet aggregation. It is metabolized to an active drug by a liver enzyme. Its efficacy may be measured by blood sampling for platelet activity, analyzed by VerifyNow device. Calcium Channel blocker (CCB) is also commonly used for blood pressure and anginal control in these patients. Dihydropyridine group of calcium channel blocker (e.g. amlodipine) inhibits this enzyme. There are observational studies reporting dihydropyridine CCB reducing clopidogrel effect, but the clinical implication is unclear. This study test the hypothesis that there is no significant effect of dihydropyridines CCB on clopidogrel response compared with control. After giving consent, patients with suboptimal blood pressure or anginal control will be randomized to receive either dihydropyridine CCB or non-CCB as placebo. These patient will be follow-up in 1 month.

The purpose of this study is to evaluate the additional effect of probucol or concomitant administration of cilostazol and probucol on mean carotid artery intima-media thickness (mean IMT) at year 1, 2, and 3.

This randomized, controlled, diagnostic, multicenter trial will compare two diagnostic imaging pathways--coronary computed tomography angiography (CCTA) and single photon emission tomography (SPECT) myocardial perfusion imaging (MPI)--to determine the incidence of major adverse coronary events (MACE), defined as myocardial infarction (MI) or cardiac-related death, and cross-over to revascularization. CCTA may be used to direct patients with symptoms of stable angina or angina equivalent to optimal medical therapy (OMT). The use of CCTA as a diagnostic tool for angina symptoms will be associated with no increase in MACE or revascularization, decreased cost, reduced risks (e.g., less radiation exposure), additional insights into alternate explanations of chest pain, and increased cost-effectiveness in comparison with use of SPECT MPI/invasive coronary angiography (ICA).

The objective of this study is to evaluate the safety and effectiveness of the clinical and technical performance of the CorPath® 200 System in the delivery and manipulation of coronary guidewires and stent/balloon systems for use in percutaneous coronary interventions (PCI).

The aim of the study is to assess the safety and efficacy of the Paclitaxel-eluting PTCA-balloon in the treatment of in-stent restenoses in native coronary arteries with reference diameters between 2.5 mm and 3.5 mm and ≤ 22 mm in length for procedural success and preservation of vessel patency in comparison to the Paclitaxel-eluting Taxus™ stent.

This 2 arm study will assess the long term safety and efficacy of RO4607381 in patients with coronary heart disease or a coronary heart disease (CHD) risk equivalent who have completed study NC19453. Patients eligible to participate in the extension study will continue on the treatment they were originally assigned to ie RO4607381 (900mg po) or placebo daily, with concomitant daily atorvastatin (10 to 80mg po). The anticipated time on study treatment is 6 months post study NC19453, and the target sample size is approximately 100 individuals.