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107 active trials for Acute Myocardial Infarction

Ezetimibe Utilization Early After Acute Myocardial Infarction, "EzAMI Trial"

Rationale: Patients with acute coronary syndromes are at an increased risk for recurrent adverse coronary events, particularly during the early period following their initial presentation. Early (in-hospital) initiation of high-intensity statins reduces the risk of recurrent events and is therefore recommended by the best current practice guidelines.(1,2) However, the delayed onset of action of statin therapy and given the frequent failure of patients to achieve the recommended LDL-C targets using statins alone (as per the current practice guidelines recommendations), might be placing large number of patients at increased risk during such a vulnerable period early after an ACS.(3) More rapid and effective reduction of LDL-C levels using combination therapy from the outset may therefore be beneficial in these patients. This hypothesis has been tested with combining Evolocumab and a statin in the recent EVOPACS study, in which this combination after ACS has shown to be safe and more effective in achieving LDL-C targets at 6 weeks compared to statin monotherapy.(4) However, Evolocumab (a PCSK9i) is an expensive drug which is not affordable by many healthcare systems in low- and middle-income countries. Ezetemibe, on the other hand, is a safe and a cheap drug that can prove to be extremely cost-effective if a meaningful and timely reduction in LDL-C levels can be achieved when combined with a statin early after an ACS. Study population Patients presenting with acute myocardial infarction, with baseline LDL-C levels not likely to achieve recommended targets on statin monotherapy. This is assumed to be with LDL-C level > 125 mg/dl for those not on lipid lowering therapy; or with LDL-C > 100 mg/dl on moderate intensity statin therapy at the time of presentation. Study design Prospective randomized controlled single-blinded trial. A sample size of 500 patients, 250 in each arm, was calculated to provide a power of 0.9 and an adjusted type 1 error as 0.05. Primary outcomes Percentage of patients achieving target LDL-C levels (<70 mg/dl) at 6 weeks interval. (Efficacy endpoint) Freedom from alanine transaminase elevation (ALT) more than 3 folds upper reference limit "URL" or statin associated muscle symptoms associated with CK elevation more than 4 folds URL. (Safety endpoint) Secondary outcomes Percentage of patients achieving > 50% reduction of LDL-C and to levels below 70mg/dl at 6 weeks interval. Percentage of LDL-C reduction at 6 weeks interval. Reduction of high-sensitive C-reactive protein (hs-CRP) from baseline to 6 weeks interval. Correlating statins efficacy to reduce LDL-C and likelihood to cause statins related adverse effects to genetic alleles of ABC [ATP Binding Cassette] types A1, G5 and G8, and of CYP450 isoenzymes. MACE free survival at 1 year, (CV death; non fatal-MI; hospitalization for ACS, urgent unplanned revascularization and stroke).

Start: March 2021
Epitranscriptomic Blood Biomarkers for Coronary Artery Disease - A Prospective Cohort Study (IHD-EPITRAN)

Despite advancements in medical care, ischemic heart disease (IHD) remains the leading global cause of death. IHD develops through lipid accumulation into the coronary arteries with subsequent formation of larger atherogenic plaques. During myocardial infarction (MI), a plaque ruptures and subsequent occlusion leads to a death of the heart muscle. The tissue is rapidly replaced with a scar, which may later lead to heart failure (HF). Optimally, disease biomarkers are analyzed from blood, provide insight into the disease progression and aid the evaluation of therapy efficacy. Unfortunately, no optimal biomarkers have been identified for IHD. The vast but uncounted number of patients with undiagnosed IHD, benefitting from an early diagnosis, underscore the dire need for an IHD biomarker. Epitranscriptomics, the study of posttranscriptional modifications on RNA, has recently been properly re-established. This expanding field is uncovering a new layer of regulation, controlling processes ranging from cell division to cell death. Over 170 modi?cations have been identi?ed as posttranscriptional marks in RNA species. These modi?cations influence RNA metabolism, including export, stability, and translation. One the most common and intensively studied RNA modi?cation is the N6-methyladenosine (m6A), the abundance and effects of which are determined by the interplay between its writers, readers and erasers. Recent findings suggest a local dysregulation of the m6A dynamics in the myocardium, coalescing in signalling pathway and contractility related RNA transcripts during hypertrophy, MI and HF. While these early reports have focused on the myocardium, the role of the m6A in the circulation during IHD remains unexplored. We hypothesize the IHD pathophysiology to be reflected in the epitranscriptome of the circulating RNA. The objective of the IHD-EPITRAN is to identify new IHD biomarkers via cohort comparison of the blood epitranscriptomes from patients with: (1) MI related with coronary angioplasty, (2) IHD treated with elective coronary artery bypass grafting, (3) aortic valve stenosis treated with valve replacement and (4) IHD-healthy controls verified with computerized tomography imaging. The RNA fractionation is followed by the quantitative modifications analysis with mass spectrometry. Ultimately, nanopore RNA sequencing with simultaneous m6A identification in their native sequences is carried out using recently published artificial intelligence-based algorithm.

Start: November 2020