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Aldosterone Blockade Early After Acute Myocardial Infarction

2014-07-24 14:10:09 | BioPortfolio

Summary

Study hypothesis : An early blockade of aldosterone receptors initiated at the first medical contact after acute myocardial infarction may reduce major cardiovascular events within 6 months after the occurrence of the myocardial infarction.

Primary efficacy criterion : The 6 month rate of the composite of death, resuscitated cardiac arrest, potentially lethal ventricular arrhythmia, indication for implantation of an implantable cardioversion device, occurrence or aggravation of heart failure.

Primary objective: To demonstrate the superiority of aldosterone blockade initiated as soon as possible within 72 hours after the onset of acute myocardial infarction on top of standard therapy, compared to standard therapy alone, with or without reperfusion therapy.

Study design : Prospective, multi-centre randomised, open labeled with 2 parallel study arms.

Description

Rational :The blockade of the renin-angiotensin-aldosterone (RAA) pathway by angiotensin conversion enzyme inhibitors (ACEI) is one corner stone in the management of heart failure as well as the management of ischemic heart disease, especially after acute myocardial infarctionHigh plasma aldosterone levels have been associated with both direct and indirect toxic effects on myocardium. ACEIs are associated with partial and temporary reduction of plasma aldosterone levels.The RALES randomized controlled trial has shown a reduction of mortality associated with the use of the selective aldosterone receptor blocker spironolactone, on top of standard therapy including ACEIs in the setting of NYHA 3-4 chronic heart failure. The EPHESUS randomized controlled trial has shown a reduction of mortality associated with the use of another selective aldosterone receptor blocker Eplerenone, initiated 3 to 14 days after acute myocardial infarction complicated by clinical heart failure and left ventricular ejection fraction < 40%.Both previous studies have also reported a rapid reduction of global and arrhythmia-related mortality, within 30 days after the initiation of the medication.Such benefit has been reported after delayed initiation of aldosterone blocked, while aldosterone is at its highest level at presentation after acute myocardial infarction, with a rapid decrease within days after admission. Furthermore high aldosterone levels on admission are associated with adverse outcome independent of heart failure.

The ALBATROSS trial :Hypothesis: An early blockade of aldosterone receptors initiated at the first medical contact after acute myocardial infarction may reduce major cardiovascular events within 6 months after the occurrence of the myocardial infarction.

Primary objective: To demonstrate the superiority of aldosterone blockade initiated as soon as possible within 72 hours after the onset of acute myocardial infarction on top of standard therapy, compared to standard therapy alone, with or without reperfusion therapy.

Study Design

Allocation: Randomized, Control: Uncontrolled, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Myocardial Infarction

Intervention

Spironolactone

Location

Hôpital PITIE-SALPETRIERE - Institut de Cardiologie
Paris
France
75013

Status

Recruiting

Source

Assistance Publique - Hôpitaux de Paris

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-24T14:10:09-0400

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Medical and Biotech [MESH] Definitions

MYOCARDIAL INFARCTION in which the anterior wall of the heart is involved. Anterior wall myocardial infarction is often caused by occlusion of the left anterior descending coronary artery. It can be categorized as anteroseptal or anterolateral wall myocardial infarction.

A myocardial infarction that does not produce elevations in the ST segments of the ELECTROCARDIOGRAM. ST segment elevation of the ECG is often used in determining the treatment protocol (see also ST Elevation Myocardial Infarction).

A clinical syndrome defined by MYOCARDIAL ISCHEMIA symptoms; persistent elevation in the ST segments of the ELECTROCARDIOGRAM; and release of BIOMARKERS of myocardial NECROSIS (e.g., elevated TROPONIN levels). ST segment elevation in the ECG is often used in determining the treatment protocol (see also NON-ST ELEVATION MYOCARDIAL INFARCTION).

MYOCARDIAL INFARCTION in which the inferior wall of the heart is involved. It is often caused by occlusion of the right coronary artery.

Laceration or tearing of cardiac tissues appearing after MYOCARDIAL INFARCTION.

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