Metformin to Reduce Heart Failure After Myocardial Infarction

Overview[ - collapse ][ - ]

Purpose The investigators will evaluate the effect of metformin therapy during 4 months in non-diabetic patients following ST-elevation myocardial infarction on left ventricular ejection fraction as measured with cardiac magnetic resonance imaging, compared to placebo.
ConditionST Elevation Myocardial Infarction (STEMI)
Coronary Artery Disease
Heart Failure
Diabetes
InterventionDrug: Metformin
Drug: Placebo
PhasePhase 2/Phase 3
SponsorUniversity Medical Centre Groningen
Responsible PartyUniversity Medical Centre Groningen
ClinicalTrials.gov IdentifierNCT01217307
First ReceivedOctober 7, 2010
Last UpdatedOctober 16, 2013
Last verifiedOctober 2013

Tracking Information[ + expand ][ + ]

First Received DateOctober 7, 2010
Last Updated DateOctober 16, 2013
Start DateJanuary 2011
Estimated Primary Completion DateMay 2015
Current Primary Outcome MeasuresImprovement in left ventricular ejection fraction [Time Frame: 4 months] [Designated as safety issue: No]The primary efficacy parameter of the GIPS-III trial is LVEF measured by cardiac MRI 4 months after randomization, based on an intention-to-treat analysis. It is hypothesized that metformin therapy will result in a higher ejection fraction after 4 months.
Current Secondary Outcome Measures
  • the incidence of a cardiovascular event [Time Frame: 4 months and longterm follow-up] [Designated as safety issue: Yes]Cardiovascular events include major cardiac adverse events (MACE; death, recurrent MI, target lesion revascularization), stroke, non-elective hospitalizations for chest pain or heart failure, all recurrent coronary interventions, and internal cardiac defibrillator implantations. Mortality will be divided into cardiac and non-cardiac. Cardiac death will be divided into three categories: heart failure, sudden death and other. A cardiologist will confirm deaths from cardiovascular causes by examining medical records obtained from hospitals and attending physicians or from attending general practitioner if the patient died at home.
  • markers of heart failure and glycometabolic state [Time Frame: 4 months and longterm follow-up] [Designated as safety issue: Yes]markers of heart failure: neurohormones (e.g. NT-proBNP), renal function (e.g. MDRD); glycometabolic state: e.g. HbA1c.
  • Myocardial infarct size and transmural extent of infarction as measured with cardiac magnetic resonance imaging [Time Frame: 4 months after hospitalization] [Designated as safety issue: No]myocardial infarct size and transmural extent of infarction will be measured using Late Gadolinium Enhancement cardiac magnetic imaging
  • diastolic function [Time Frame: 4 months] [Designated as safety issue: No]echocardiographic analysis of diastolic function
  • glycometabolic state [Time Frame: 4 months and long-term follow-up] [Designated as safety issue: No]measured by oral glucose tolerance testing and Glycated Hemoglobin according to current criteria
  • Cardiac MRI after 4 months, per protocol analysis [Time Frame: 4 months] [Designated as safety issue: No]A per-protocol analysis, excluding patients diagnosed with new onset diabetes and treated with oral antihyperglycemic agents or insulin prior to cardiac MRI, will be performed as a secondary efficacy parameter

Descriptive Information[ + expand ][ + ]

Brief TitleMetformin to Reduce Heart Failure After Myocardial Infarction
Official TitleMetabolic Modulation With Metformin to Reduce Heart Failure After Acute Myocardial Infarction: Glycometabolic Intervention as Adjunct to Primary Coronary Intervention in ST Elevation Myocardial Infarction (GIPS-III): a Randomized Controlled Trial.
Brief Summary
The investigators will evaluate the effect of metformin therapy during 4 months in
non-diabetic patients following ST-elevation myocardial infarction on left ventricular
ejection fraction as measured with cardiac magnetic resonance imaging, compared to placebo.
Detailed Description
In this trial, the investigators will evaluate the effect of metformin therapy following
ST-elevation myocardial infarction (STEMI) in a total of 380 non-diabetic patients. This
trial is a randomized, double blind, controlled trial. The intervention, which consist of
metformin 500mg twice daily or placebo twice daily, will commence within three hours after
the percutaneous coronary intervention, and will be continued for 4 months. The primary
endpoint is the difference between the two intervention groups (metformin vs placebo) in
left ventricular ejection fraction, as measured with magnetic resonance imaging after 4
months. The investigators hypothesize that metformin therapy results in a significantly
higher ejection fraction in this population.
Study TypeInterventional
Study PhasePhase 2/Phase 3
Study DesignAllocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Condition
  • ST Elevation Myocardial Infarction (STEMI)
  • Coronary Artery Disease
  • Heart Failure
  • Diabetes
InterventionDrug: Metformin
Metformin 500mg twice daily during 4 months
Other Names:
GlucophageDrug: Placebo
Placebo twice daily during 4 months
Study Arm (s)
  • Experimental: Metformin
    metformin 500mg twice daily during 4 months
  • Placebo Comparator: Placebo
    Placebo twice daily during 4 months

Recruitment Information[ + expand ][ + ]

Recruitment StatusActive, not recruiting
Estimated Enrollment380
Estimated Completion DateMay 2015
Estimated Primary Completion DateOctober 2013
Eligibility Criteria
Inclusion Criteria:

- The diagnosis acute MI defined by chest pain suggestive for myocardial ischemia for
at least 30 minutes, the time from onset of the symptoms less than 12 hours before
hospital admission, and an ECG recording with ST- segment elevation of more than 0.1
mV in 2 or more leads.

- Successful primary PCI (post-procedural TIMI 2/3);

- At least one stent sized ≥ 3.0 mm;

- Eligible for 3T CMR imaging;

- Verbal followed by written informed consent.

Exclusion Criteria:

- rescue PCI after thrombolytic therapy;

- need for emergency coronary artery bypass grafting;

- creatinin >177 μmol/L measured pre-PCI;

- Younger than 18 years;

- Mechanical ventilation;

- Diabetes;

- Prior myocardial infarction;

- Contra-indication to metformin (see safety);

- The existence of a life-threatening disease with a life-expectancy of less than 6
months.
GenderBoth
Ages18 Years
Accepts Healthy VolunteersNo
ContactsNot Provided
Location CountriesNetherlands

Administrative Information[ + expand ][ + ]

NCT Number NCT01217307
Other Study ID NumbersGIPS-III 2010B257
Has Data Monitoring CommitteeYes
Information Provided ByUniversity Medical Centre Groningen
Study SponsorUniversity Medical Centre Groningen
CollaboratorsZonMw: The Netherlands Organisation for Health Research and Development
Investigators Principal Investigator: Iwan CC van der Horst, MD, PhD Thorax Centre, University Medical Centre Groningen
Verification DateOctober 2013

Locations[ + expand ][ + ]

University Medical Center Groningen
Groningen, Netherlands, 9700RB