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NCT06710184
The main goal of this study is to compare two treatments in patients with a specific type of heart attack called Non-ST-elevation Myocardial Infarction (NSTEMI). The investigators want to find out whether using aspirin alone is as effective and safer than using aspirin together with a second blood thinner called fondaparinux. Both treatments will be given before a scheduled heart procedure called coronary angiography (CAG), which may include balloon dilation and stent placement (PCI) if needed. The current guidelines recommend using aspirin in combination with a second blood thinner like fondaparinux before CAG and possible PCI. However, these recommendations are based on studies from the 1990s, a time when invasive procedures were not standard practice for these patients. In contrast, nearly all patients with NSTEMI in Denmark (96%) now undergo CAG within 72 hours. This change in practice raises questions about whether the older studies still provide a valid foundation for today's guidelines. The study aims to answer two questions: 1. Is aspirin alone as effective as aspirin combined with fondaparinux before early CAG and possible PCI? 2. Is aspirin alone safer, with a lower risk of severe bleeding, compared to the combination treatment? To answer these questions, the investigators will enroll about 5,000 patients with NSTEMI. Participants will be randomly assigned to receive either aspirin alone or aspirin with fondaparinux. The investigators will monitor them for 30 days to compare outcomes such as death, new heart attacks, the need for urgent CAG before the scheduled, and severe bleeding.
NCT07444957
This prospective, multicenter, post-market observational study aims to evaluate the safety and effectiveness of the crystalline sirolimus-coated balloon (SeQuent® Sirolimus-Coated Balloon) for the treatment of coronary artery disease in routine clinical practice. Consecutive, unselected adult patients undergoing percutaneous coronary intervention for de novo coronary lesions or in-stent restenosis will be enrolled. The primary objective is to assess target lesion failure at 12 months, defined as the composite of target vessel myocardial infarction or ischemia-driven target lesion revascularization. Secondary objectives include angiographic procedural success, major adverse cardiovascular events, bleeding outcomes, and longer-term clinical results up to 36 months, as well as outcomes across predefined anatomical and clinical subgroups. The study seeks to answer whether treatment with the crystalline sirolimus-coated balloon provides a safe and effective revascularization strategy in a real-world population with diverse clinical presentations and lesion characteristics.
NCT06615674
The currently known Sodium-Glucose Transporter 2 (SGLT-2) inhibitors are recognized not only for their effects on improving intravascular glucose levels but also for their cardioprotective effects, including improvements in endothelial dysfunction, inhibition of platelet activation, reduction in autophagy processes, oxidative stress, and inflammation, as well as inhibition of the Na+/H+ exchanger pathway, which potentially reduces cell damage and death resulting from ischemia and reperfusion processes. Research on the benefits of SGLT-2 inhibitors in pre-clinical studies with myocardial infarction has shown a significant reduction in myocardial apoptosis, indicated by reduced levels of caspase-3 and the apoptosis index. Additionally, there was an increase in ketone bodies and myocardial ATP, reduced levels of inflammatory cytokines, free radicals, and infarct area, as well as improvements in left ventricular ejection fraction. However, large-scale studies in humans have thus far been limited to investigating the effects of SGLT-2 inhibitors on mortality, rehospitalization rates due to heart failure, cardiometabolic factors, and improvements in remodeling parameters in myocardial infarction patients, with the use of empagliflozin or dapagliflozin. Based on literature reviews, there have been no studies to date that directly demonstrate the effects of dapagliflozin on apoptosis (caspase-3 levels) in myocardial infarction patients.
NCT03507777
The objective of this prospective, single-blind clinical investigation is to demonstrate the superiority of an Optical Coherence Tomography (OCT)-guided stent implantation strategy as compared to an angiography-guided stent implantation strategy in achieving larger post-PCI lumen dimensions and improving clinical cardiovascular outcomes in patients with high-risk clinical characteristics and/or with high-risk angiographic lesions.