Active clinical trials for "Coronary Artery Disease"

The primary objective of this trial is to evaluate confirmation of placement of any guidewire beyond the chronic total occlusion (CTO) in the true vessel lumen in patients in which at least one Asahi series of guidewires and/or Corsair microcatheter were used. Procedure success will be defined as angiographic visualization of any guidewire in a position either distal or proximal to the occlusion depending on the route of access and the absence of in-hospital major adverse cardiac events (MACE).

The purpose of this study is to determine whether Anagliptin or Sitagliptin are effective in reducing the low-density lipoprotein cholesterol in patients with type 2 diabetes and cardiovascular risk factors on statin.

The principal hypothesis of this study is that two different maintenance regimens of ticagrelor are safe, tolerable and associated with significant inhibition of erythrocyte adenosine reuptake compared to clopidogrel in patients undergoing elective Percutaneous Coronary Intervention (PCI) for stable Coronary artery disease (CAD).

The recommended antiplatelet treatment regimen for patients affected by acute coronary syndromes (ACS) and those undergoing percutaneous coronary intervention (PCI) consists in the combination of aspirin and a P2Y12 receptor inhibitor. More potent P2Y12 receptor inhibitors, such as ticagrelor, have been developed which are associated with less response variability than clopidogrel and better clinical outcomes. Ticagrelor use has increased significantly because of its more expanded Food and Drug Administration (FDA) indications compared with prasugrel. However, despite the evidence for sustained efficacy and safety, many physicians limit treatment duration with ticagrelor to the early phases following an ACS mostly due to cost issues and concerns about increased bleeding. Therefore, it is very common in clinical practice to switch patients while on maintenance dosing (MD) with ticagrelor to treatment with clopidogrel. However, the pharmacodynamic (PD) effects of switching from ticagrelor to clopidogrel remain unknown. Therefore, the aim of this investigation is to evaluate the PD effects of switching from ticagrelor to clopidogrel.

CrossBoss First is a single-blind randomized controlled trial that will randomize 246 patients undergoing clinically-indicated Chronic Total Occlusion Percutaneous Coronary Intervention, to upfront use of the CrossBoss catheter vs. antegrade guidewire escalation strategy The "CrossBoss First" study has two primary objectives. The primary efficacy objective is to compare the procedure time required to cross the CTO or abort the procedure with a CrossBoss first vs. antegrade wire escalation strategy. The investigators hypothesize that upfront use of the CrossBoss catheter will be associated with shorter procedure time required for CTO crossing compared with an antegrade wire escalation strategy. The primary safety objective is to compare the frequency of procedural major adverse cardiovascular events (MACE) with upfront use of CrossBoss vs. a guidewire escalation strategy. The investigators hypothesize that upfront use of the CrossBoss catheter will be associated with similar incidence of MACE compared with an antegrade wire escalation strategy. The secondary endpoints are: (1) technical and procedural success4-6; (2) total procedure time (defined as the interval between administration of local anesthesia for obtaining vascular access and removal of the last catheter); (3) fluoroscopy time to cross the CTO and total fluoroscopy time; (4) total air kerma radiation exposure; (5) total contrast volume; and (6) number of wires, microcatheters, balloons, and stents used.

The purpose of this study is to determine whether ranolazine has beneficial effects on cardiac ischemia through reduction of premature ventricular contraction burden.

The purpose of this study is to determine the proportion of untreated donor platelets required to fully reverse the platelet inhibitory effects of ticagrelor and aspirin in healthy persons and patients with coronary artery disease undergoing percutaneous coronary intervention (PCI) and receiving ticagrelor.

The objective of this clinical investigation is to demonstrate the safety and efficacy of an OCT guided strategy for stent implantation

Although approaches to reduce cardiovascular disease, coronary artery disease (CAD) remains the leading cause of mortality in the industrialized world. In order to reduce the deleterious effects of the atherosclerotic process, proposals for non-pharmacological treatment have been used, such as cardiac rehabilitation programs, with emphasis on exercise -based therapy. Traditionally aerobic exercises like biking, walking and jogging are conducted, however, alternative ways such as aquatic exercise training have been proposed, however, the cardiorespiratory adaptations in this population are not well documented in the literature. Thus, the aim of this study was to evaluate the effects of aquatic aerobic training (AAT) on body composition, autonomic modulation of heart rate (HR) and cardiorespiratory and metabolic variables in patients with CAD. This was a longitudinal clinical trial with a sample allocated for convenience, in which twenty-one patients were male, with a diagnosis of CAD, which were divided into control group (CG were studied, n=8), who was only assessed, and training group (TG, n=13). All patients underwent assessment of body composition, heart rate variability (HRV) at rest in the supine posture, and cardiopulmonary exercise testing (CPET), performed before and after the AAT program. The training protocol consisted of three sessions per week on alternate days for 16 weeks, totaling 48 sessions, which had lasted approximately one hour. The exercise intensity was prescribed between 80 and 110% of the first ventilatory threshold (VT1) obtained in CPET. Given that these parameters represent risk markers for cardiovascular events in the population studied, the results suggest that the AAT proposed in this study may be an important therapeutic strategy to be incorporated into cardiac rehabilitation programs.

Prasugrel has shown to be superior to clopidogrel, in adjunct to aspirin, in preventing recurrent ischemic events. Prasugrel is approved in patients with ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) at a dosage of 60 mg loading dose (LD) followed by 10 mg/day. However, a delay in the onset of its antiplatelet effects in this particular setting has been consistently shown. administration of clopidogrel and ticagrelor crushed tablets has been tested and a faster and greater bioavailability compared to the whole tablets has been observed. However, if the administration of a crushed prasugrel LD may overcome the above limitation is still unknown and represents the aim of our study. The proposed investigation will have a prospective, randomized, design in which STEMI patients undergoing primary PCI will be randomized to receive two different formulation of prasugrel LD (60 mg whole tablets and 60 mg crushed tablets). Pharmacodynamic testing will be performed at several time points to test our study hypothesis that crushed LD regiment will achieve more prompt and enhanced platelet inhibitory effects.