Cardioprotective Effect of Sodium-Glucose Cotransporter-2 Inhibitors (SGLT2-I) in Diabetic Patients With Acute Myocardial Infarction
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 800
- 试验地点
- 7
- 主要终点
- Composite of cardiovascular death, recurrent AMI, and hospitalization for HF (MACE).
研究概览
简要总结
Despite their potential benefits on the heart with pleiotropic mechanisms, the cardioprotective effects of new glucose-lowering SGLT-2 inhibitors in patients with myocardial infarction - both in the acute and chronic phase - have never been explored.
The key point of the project will be the evaluation of the cardioprotective effect and the potential prognostic benefit of SGLT-2 inhibitors in patients with diabetes and acute myocardial infarction.
详细描述
Classically, the physiopathology of myocardial infarction is linked to the presence of coronary atherosclerosis. According to the European Society of Cardiology (ESC)/American College of Cardiology (ACC)/American Heart Association (AHA) Guidelines of the fourth Universal definition, type 1 myocardial infarction (MI), the most frequent cause was atherothrombotic plaque (the mechanism of plaque erosion, rupture, fissuring with an athero-thrombotic)(1) In acute myocardial infarction, early restoration of epicardial and myocardial blood flow is of paramount importance to limit infarction size and create optimum conditions for favorable long-term outcome. Currently, restoration of epicardial blood flow is preferably and effectively obtained by primary percutaneous coronary intervention (PPCI). After opening the occluded artery, however, the reperfusion process itself causes damage to the myocardium, the so called "reperfusion injury". The phenomenon of reperfusion injury is incompletely understood and currently there is no established therapy for preventing it. Contributory factors are intramyocardial edema with compression of the microvasculature, oxidative stress, calcium overload, mitochondrial transition pore opening, micro embolization, neutrophil plugging and hyper contracture. This results in myocardial stunning, reperfusion arrhythmias and ongoing myocardial necrosis (2,3). There is general agreement that a large part of the cell death caused by myocardial reperfusion injury occurs during the first few minutes of reperfusion, and that early treatment is required to prevent it.
According to current guidelines, drug therapy administrated for acute myocardial infarction includes antiplatelets (against atherosclerotic plaque and stent thrombosis), renin-angiotensin-aldosterone system (RAAS) inhibitors, beta-blockers and lipid-lowering therapy (primarily with statins).
Due to their high efficacy, excellent tolerability, and their ability to reduce major adverse cardiovascular events in large clinical trials, SGLT2 inhibitors have been tested in a variety of preclinical studies and it was demonstrated to reduce acute myocardial ischemia-reperfusion (I/R) injury (4).
Four-week pre-treatment with dapagliflozin could decrease infarct size in rats with obese insulin resistance which underwent cardiac ischemic-reperfusion injury (5) and a recent experimental study demonstrated that acute dapagliflozin administration during cardiac I/R injury exerted cardioprotective effects by attenuating cardiac infarct size, increasing left ventricular function and reducing arrhythmias (6). Moreover, in rats with previous myocardial infarct, dapagliflozin treatment beginning one day after left anterior descending coronary artery ligation could decrease myofibroblast infiltration and myocardial fibrosis (7).
Finally, a preregistered meta-analysis (PROSPERO), that included placebo-controlled, interventional studies of small and large animal models of myocardial ischaemia-reperfusion injury, testing the effect of SGLT2 inhibitor treatment on myocardial infarct size concluded that the glucose-lowering SGLT2 inhibitors reduce myocardial infarct size in animal models independent of diabetes status (8).
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age ≥18 y old
- •STEMI/NSTEMI diagnosed according to ESC guidelines undergoing reperfusion treatment with percutaneous transluminal coronary angioplasty (PTCA).
- •Known type II diabetes mellitus treated with oral antidiabetic drugs
排除标准
- •Type I diabetes mellitus or type II diabetes mellitus treated only with insulin therapy alone or in combination with other anti-diabetic drugs.
- •Patients treated with Coronary artery bypass grafting (CABG) after the coronary angiography (CAG) (NSTEMI)
- •Previous CABG
- •Severe valvular heart disease.
- •Contraindications for secondary medical prevention therapy approved for myocardial infarctions, like beta-blockers, angiotensin-converting enzyme inhibitor(ACEI )/angiotensin receptor blocker (ARBs), antiplatelets, statins. All patients will be treated with optimal secondary prevention therapy suggested by the current ESC guidelines.
- •Patients who start SGLT2 therapy after the acute index event.
结局指标
主要结局
Composite of cardiovascular death, recurrent AMI, and hospitalization for HF (MACE).
时间窗: Through study completion, an average of 2 year
Composite of cardiovascular death, recurrent AMI, and hospitalization for HF (MACE).
次要结局
- All-cause mortality(Through study completion, an average of 2 year)
- Recurrent AMI(Through study completion, an average of 2 year)
- Intra-hospital atrial and ventricular arrhythmias(Up to 30 days)
- Length of hospital stay(Up to 30 days)
- Intra-hospital cardiovascular death(Up to 30 days)
- Reduction of the infarct size(Up to 30 days)
- Reduction of the inflammatory response.(Up to 30 days)
- Heart failure hospitalization.(Through study completion, an average of 2 year.)
- Cardiovascular mortality(Through study completion, an average of 2 year.)
- Any coronary revascularization(Through study completion, an average of 2 year)
- Contrast-induced acute kidney injury(Through study completion, an average of 1 year)