Postconditioning in the Treatment of Acute ST-segment Elevation Myocardial Infarction (POSTCON)

October 5, 2016 updated by: Thomas Engstrom, Rigshospitalet, Denmark

Postconditioning Used to Limit Final Infarct Size in Patients With Acute ST-segment Elevation Myocardial Infarction

Standard treatment of patients with acute ST-segment elevation myocardial infarction consist of acute re-opening of the occluded coronary artery (primary PCI). Despite successful treatment of the epicardial vessel reperfusion is sometimes inadequate leading to large final infarct sizes. This phenomenon is known as the reperfusion injury. Several animal studies have indicated that graded re-opening of the artery may limit tissue damage. Generally this is referred to as mechanical postconditioning.

The study investigates the effect on final infarct size evaluated by magnetic resonance scan of postconditioning of ST-segment elevation myocardial infarctions. Mechanical postconditioning is performed by means of several balloon inflations in the injured vessel following its acute re-opening.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Please see above

Study Type

Interventional

Enrollment (Anticipated)

200

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Denmark
      • Copenhagen, Denmark, 2100
        • Cardiac Catherization Lab., Heart Center, Rigshospitalet, University of Copenhagen

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients more than 18 years
  • STEMI < 12 hours
  • TIMI 0-1 in infarct related artery

Exclusion Criteria:

  • Multivessel disease (stenoses in non-infarct related arteries >70%)
  • Cardiogenic shock
  • Left main occlusions
  • Lesions that cannot be treated with stents
  • Previous CABG
  • Pregnancy
  • Severe renal insufficiency
  • Previous extensive Q-wave infarction
  • LBBB

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Mek postcon
Re-opening of the infarcted coronary artery by several balloon inflations separated by reperfusion of the vessel.
Procedure: Mechanical postconditioning
Mechanical postconditioning with 4 cycles 30/30 sek balloon inflations
Active Comparator: Standard treatment
Standard treatment (primary PCI)
Procedure: Standard primary PCI
Acute re-opening of the occluded coronary artery

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Final infarct size evaluated by MR
Time Frame: 3 month
3 month

Secondary Outcome Measures

Outcome Measure
Time Frame
MACE (death, re-infarction, TLR)
Time Frame: 1, 15 month
1, 15 month
Stent thrombosis
Time Frame: 15 month
15 month

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Rigshospitalet, Denmark

Investigators

  • Study Chair: Thomas Engstrom, D.Sci., PhD, Cheif Consultant

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2007

Primary Completion (Actual)

November 1, 2008

Study Registration Dates

First Submitted

July 23, 2007

First Submitted That Met QC Criteria

July 23, 2007

First Posted (Estimate)

July 25, 2007

Study Record Updates

Last Update Posted (Estimate)

October 6, 2016

Last Update Submitted That Met QC Criteria

October 5, 2016

Last Verified

October 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • KF 01 326257

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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