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Safety and Efficacy Study of Adjunctive Antiplatelet Therapy Prior to Primary PCI in Patients With STEMI (ERASE-MI)

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ClinicalTrials.gov Identifier: NCT00546260
Recruitment Status : Terminated (Administrative reasons.)
First Posted : October 18, 2007
Results First Posted : January 25, 2011
Last Update Posted : January 25, 2011
Sponsor:
Information provided by:
Portola Pharmaceuticals

Study Description
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Brief Summary:
Safety and efficacy of adjunctive antiplatelet therapy prior to primary percutaneous intervention (PCI) in patients with ST-Elevation Myocardial Infarction (STEMI)

Condition or disease Intervention/treatment Phase
Myocardial Infarction Drug: placebo Drug: PRT060128 Potassium Phase 2

Detailed Description:
Patients with STEMI who are to undergo primary PCI will be randomized to an intravenous (iv) bolus of placebo vs. PRT060128 prior to angiography.
Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 70 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Randomized Trial to Evaluate Effect of Adjunctive Antiplatelet Therapy With Intravenous PRT060128, a Selective P2Y12-Receptor Inhibitor, Before Primary Percutaneous Intervention (PCI) in ST-Elevation Myocardial Infarction (STEMI) Patients
Study Start Date : November 2007
Actual Primary Completion Date : July 2008
Actual Study Completion Date : July 2008

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Heart Attack

Arms and Interventions
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Arm Intervention/treatment
Placebo Comparator: 1
Placebo for each Dose cohort: 10, 20, 40, and 60 mg
 Drug: placebo
administration of iv bolus prior to angiography
Experimental: 2
Experimental drug for each Dose cohort: 10, 20, 40, and 60 mg
 Drug: PRT060128 Potassium
administration of iv bolus prior to angiography


Outcome Measures
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Primary Outcome Measures :
  1. Number of Patients With Thrombolysis in Myocardial Infarction (TIMI) Major/Minor Bleeding, Global Use of Strategies to Open Occluded Coronary Arteries (GUSTO) Severe/Moderate Bleeding Through Hospital Discharge, and Intracranial Hemorrhage Through 30 Days [ Time Frame: 30 days ]

    TIMI Major:Intracranial bleeding or a decrease in the hemoglobin concentration of 5g/dL or more, or 15% or greater decrease in hematocrit.

    TIMI Minor:Hemoglobin concentration decreased by 3g/dL (but <5g/dL) or the hematocrit decreased by 10-15%.

    GUSTO Severe/life threatening:Intracranial hemorrhage or bleeding that causes hemodynamic compromise requiring intervention.

    GUSTO Moderate:Bleeding that requires bloodtransfusion but does not lead to hemodynamic compromise requiring intervention.

    Stroke:New focal neurologic deficit that does not resolve within 24 hours.



Secondary Outcome Measures :
  1. Corrected TIMI Frame Count (cTFC) in the Infarct Artery on the Initial Diagnostic Angiogram Before Primary PCI [ Time Frame: Time for contrast to reach a standardized distal coronary landmark in the culprit vessel ]
    This measure was used to assess flow in the epicardial artery. It is the number of cine frames required for contrast to reach a standardized distal coronary landmark in the culprit vessel and was to be counted using an electronic frame counter.

  2. Percentage ST-segment Resolution Prior to PCI [ Time Frame: Before primary PCI ]
    The relative effect of PRT060128 on ST-segment measured after PCI and expressed as a percent of ST-Segment prior to PCI. This measure was used to evaluate the dethrombotic and early reperfusion effects of PRT060128 in STEMI.


Eligibility Criteria
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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Persistent ST elevation ≥ 1mm (≥ 0.1mV) in two contiguous limb leads OR ≥ 2 mm (≥ 0.2mV) in two contiguous precordial leads, AND chest pain ≥ 20 minutes with onset within 6 hours of hospital presentation.

Exclusion Criteria:

  • Cardiogenic shock (systolic blood pressure < 90 mm Hg requiring vasopressor or hemodynamic support)
  • Uncontrolled hypertension defined as any measured systolic blood pressure (SBP) > 180 mm Hg or diastolic blood pressure (DBP) ≥ 110 mm Hg after the time -- History or symptoms of a congenital or acquired bleeding disorder or vascular malformation.
  • Recent gastrointestinal bleeding within the last 30 days.
  • Known thrombocytopenia (platelet count < 100,000/mm3).
  • Any treatment with a fibrinolytic agent within the last 7 days.
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00546260


Locations
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Sponsors and Collaborators
Portola Pharmaceuticals
Investigators
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Principal Investigator: Matthew T. Roe, MD, MHS Duke Clinical Research Institute
Principal Investigator: Michael Gibson, MD, MS PERFUSE Angiographic Core Laboratory and Data Coordinating Center
More Information
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Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

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Responsible Party: Daniel Gretler, MD, Portola Pharmaceuticals, Inc.
ClinicalTrials.gov Identifier: NCT00546260    
Other Study ID Numbers: 07-113
First Posted: October 18, 2007    Key Record Dates
Results First Posted: January 25, 2011
Last Update Posted: January 25, 2011
Last Verified: December 2010
Keywords provided by Portola Pharmaceuticals:
STEMI
ACS
Additional relevant MeSH terms:
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Myocardial Infarction
Infarction
Ischemia
Pathologic Processes
Necrosis
 Myocardial Ischemia
Heart Diseases
Cardiovascular Diseases
Vascular Diseases