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Completed

NCT Number: NCT00355186

SWiss Multicenter Intracoronary Stem Cells Study in Acute Myocardial Infarction (SWISS-AMI)

Title: SWiss multicenter Intracoronary Stem cells Study in Acute Myocardial Infarction (SWISS-AMI).

Study population: Patients with acute myocardial infarction, treated with primary PCI.

Objective: To determine whether intracoronary infusion of BMCs improves recovery of left ventricular function after acute myocardial infarction treated by PCI

Design: Multi-center, randomized, controlled clinical trial with central core lab analysis for MRI.

Therapy: Intracoronary infusion of BMCs in the infarct related artery at 5-7 days or 3-4 weeks after successful primary PCI

Primary Endpoint: Change in global left ventricular ejection fraction (LVEF) at 4 months relative to baseline measured by quantitative MRI.

Secondary Endpoints:

* Change in LVEF at MRI at 12 months * Change in regional left ventricular wall motion and thickness at 4 and 12 months. * Change in infarct size at 4 and 12 months as assessed by "delayed enhancement" technique by MRI * Analysis of the myocardial infarct size and transmurality, time to PCI and coronary flow characteristics after PCI as predictor of LV remodeling and change after cell therapy * Change in myocardial perfusion at 4 and 12 months * Change in serum level of amino-terminal pro-brain natriuretic peptide (NT pro-BNP) * Major adverse cardiac events (MACE: death, myocardial infarction, TVR (ACBP or PCI, stroke, hospitalization for cardiac reasons) at 12 months

Interventions:

* Aspiration of 50 ml bone marrow (<24 hours) prior to administration * Intracoronary balloon-based infusion of 10 ml BMCs * Cardiac MRI at baseline (resp. at hospital discharge), at 4 and 12 months

Therapy groups: Bone marrow-derived stem cells infusion in the successfully revascularized infarct related vessel at day 5-7 or day 21-28.

Control group: Management according to the "state of the art" medical therapy after successful primary PCI.

Safety: A study independent "safety committee" will analyze the clinical results after the first 60 patients.

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Key information

Conditions

Acute Myocardial Infarction

Age range

18 year–90 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Cardiology, University Hospital Berne, Bern, Switzerland

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Visual LVEF at angiogram or echocardiography ≤45%
  • Treatment by primary PCI within 24 hours of the onset of chest pain or initial treatment with thrombolysis within the 12 hours followed by PCI within the 24 hours of the onset of chest pain
  • Significant regional LV wall motion dysfunction in the infarct related territory
  • Age >18 years

Exclusion criteria

  • Abnormal regional wall motion outside the infarct region
  • Known previous myocardial infarction in the same target vessel
  • Known pre-existing left ventricular dysfunction (EF<45% prior to admission)
  • Need for revascularization in the non infarct-related coronary within 4 months
  • Pre-existing symptoms of heart failure or known cardiomyopathy
  • Known active infection or chronic infection with HIV, HBV or HCV
  • Chronic inflammatory disease
  • Serious concomitant disease with a life expectancy of less than one year
  • Follow up impossible (no fixed abode, etc)
  • Contraindication for cardiac MRI (i.e. pace maker, neurostimulator, claustrophobia)
  • Severe renal failure (creatinine >250 mmol/l)
  • Relevant liver disease (GOT > 2x norm or spontaneous INR > 1,5)
  • Anemia (Hb < 8.5 mg/dl), Thrombocytopenia (<100.000/µl)
  • Pregnancy
  • Participation at a clinical trial in the last 30 days

Treatment and study plan

intracoronary bone marrow cells infusion

Procedure

intracoronary bone marrow cell infusion via a OTW balloon; "Stop-flow-technique" as previously described

Primary outcomes

  1. Change in global left ventricular ejection fraction (LVEF) at 4 months relative to baseline measured by quantitative MRI

    Time frame: 4 months

Secondary outcomes

  1. Change in LVEF at MRI at 12 months

    Time frame: 12 months

  2. Change in regional left ventricular wall motion and thickness at 4 and 12 months

    Time frame: 4 and 12 months

  3. Change in infarct size at 4 and 12 months as assessed by "delayed enhancement" technique by MRI

    Time frame: 4 and 12 months

  4. Analysis of the myocardial infarct size and transmurality transmurality, time to PCI and coronary flow characteristics after PCI as predictor of LV remodeling and change after cell therapy

    Time frame: baseline 4 and 12 months

  5. Change in myocardial perfusion at 4 and 12 months

    Time frame: 4 and 12 months

  6. Change in serum level of amino-terminal pro-brain natriuretic peptide (NT pro-BNP)

    Time frame: 4 and 12 months

  7. Major adverse cardiac events (MACE: death, myocardial infarction, TVR (ACBP or PCI, stroke, hospitalization for cardiac reasons) at 12 months

    Time frame: 4 and 12 months

Sponsors and collaborators

Lead sponsor

University of Zurich

Other

Registry information

Important dates

Study start
2006
Primary completion
2012
Study completion
2012
First posted
Jul 21, 2006
Registry last updated
Nov 12, 2012

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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