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Clinical Trial Summary

In this study the investigators test the hypothesis that alteplase given intra coronary after PCI reduce infarct size in patients with ST-elevation myocardial infarction(STEMI) and impaired microvascular function defined as a value of index of microvascular resistance (IMR) >30.


Clinical Trial Description

After coronary stenting, index of microvascular resistance (IMR) will be measured invasively. Patients with IMR >30 will be randomised to 20 mg alteplase or placebo (NaCl) administered in the culprit vessel through a microcatheter. Magnet resonance imaging (MRI) of the myocardium will be performed early (2-6 days) and late (3 months) to estimate the primary endpoint (infarct size).

10 non-randomised patients, with IMR <30, will undergo the same follow-up as the randomised patients.

Clinical events for all randomised and non-randomised patients will be collected from Swedish national registries and by telephone at 3 and 12 months. ;


Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT02894138
Study type Interventional
Source Vastra Gotaland Region
Contact Oskar Angerås, MD, PhD
Phone +46703134091
Email oskar.angeras@vgregion.se
Status Recruiting
Phase Phase 3
Start date September 2016
Completion date December 2017

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