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Mangafodipir as an Adjunct to Percutaneous Coronary Intervention

2014-08-27 03:19:45 | BioPortfolio

Summary

The present feasibility study is designed to find out whether pre-treatment with the compound mangafodipir (PP-099) provides an additional reduction in myocardial infarct size in patients treated with primary percutaneous coronary intervention (PCI) during acute myocardial infarction (AMI).

Description

Mangafodipir, manganese (Mn) dipyridoxyl diphosphate (MnDPDP) and its lipophile metabolite Mn dipyridoxyl diethylene diamide (MnPLED), are catalytic antioxidants and iron chelators. In preclinical studies these agents reduce oxidative stress induced injuries related to chemotherapy of cancer and to reperfusion/reoxygenation of ischemic/hypoxic myocardium. Accordingly, in an in vivo pig model of AMI metabolite MnPLED applied at end of ischemia and during reperfusion reduced myocardial infarct size by 55 %. Mangafodipir most likely activates salvage pathways and prevents lethal reperfusion injuries.

Other advantages are that mangafodipir is already approved as a contrast agent for MRI of liver, and that the experience for more than a decade reveals a high safety with minor and tolerable side-effects.

The present study will include 20 patients treated for their first documented AMI. They will after admission to hospital undergo primary PCI. Reopening of an occluded coronary artery will be preceded by iv. infusion of mangafodipir or placebo in two groups , each consisting of 10 patients. The primary endpoint will be release to plasma of commonly accepted biomarkers of myocardial injury (Troponin T and CK-MB) measured at admission and 6 hours after PCI. The secondary endpoints include the accumulated release of plasma biomarkers over 48 hours and direct measurement of the final myocardial infarct size at 6-10 weeks after PCI.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment

Conditions

Myocardial Infarction

Intervention

Mangafodipir, Placebo

Location

Department of Internal Medicine, County Hospital Ryhov
Jönköping
Sweden
551 85

Status

Recruiting

Source

PledPharma AB

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:19:45-0400

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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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