Role of Immune Responses After Acute Myocardial Infarction (BATTLE-AMI)

June 10, 2015 updated by: Francisco Antonio Helfenstein Fonseca, Federal University of São Paulo

Role of Innate and Adaptive Immunity After Acute Myocardial Infarction BATTLE-AMI Study (B And T Types of Lymphocytes Evaluation in Acute Myocardial Infarction)

The fascinating role of lymphocyte subtypes in the development of coronary artery disease may be a new strategic target for understanding and therapy of acute myocardial infarction. The determinants of cell viability are unknown, postulating that they arise from factors not only related to microcirculation or energy expenditure, but also to inflammatory and immune responses. Furthermore, the intense mobilization of progenitor cells secondary to myocardial infarction triggers large lymphocyte proliferation that colonizes plaques in development, contributing to recurrent ischemic outcomes. This project aims to evaluate the immune and metabolic mechanisms involved in the recovery of the ischemic myocardium and coronary disease progression.

Study Overview

Detailed Description

Specifically, the investigators will study the innate and adaptive immunity, with emphasis on lymphocytes subtypes involved in the early and late surrogate outcomes of patients with acute myocardial infarction, their characterization (B1, B2 and T lymphocytes) in cell culture and by flow-cytometry, and immune responses (IgM and IgG for oxLDL and specific epitopes of apoB). In addition, the project will evaluate new biomarkers identified by studies of metabolomics, as well as the corresponding signaling pathways. Therapeutic pharmacological strategies and changes on intestinal microbiota will be evaluated since the acute phase of myocardial infarction up to 6 months.

In the study, the investigators will compared four arms of combined therapy: clopidogrel with rosuvastatin; or clopidogrel with simvastatin; or ticagrelor with rosuvastatin; or ticagrelor with simvastatin. The investigator's hypothesis is that the improvement of microcirculation with rosuvastatin and ticagrelor (synergic pleiotropic effects) may decrease the infarcted mass area, resulting in better left ventricular ejection fraction when compared to the other combined therapies.

The monitoring and genotype of microbiota will be examined together the metabolomics and cardiac MRIs obtained at the acute phase of MI and after 1-mo and 6-mo FU.

Study Type

Interventional

Enrollment (Anticipated)

300

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 Contact

Study Contact Backup

Study Locations

      • Sao Paulo, Brazil, 04040001
        • Recruiting
        • Hospital Sao Paulo - UNIFESP
        • Contact:

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 to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

1. Stable patients with ST elevation myocardial infarction (STEMI) treated with thrombolytics in the first 6h or the initial of symptoms of MI.

Exclusion Criteria:

  1. Contraindication or known intolerance to the study drug protocol
  2. Those with comorbidities such as neoplasm, renal insufficiency (stage 4 or higher)

Patients should be randomized in the first 24 hours of AMI and treated by one of the four combined therapies at least 2h prior to coronary angiogram followed by percutaneous intervention when necessary.

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
Active Comparator: rosuvastatin plus clopidogrel
rosuvastatin 40 mg and clopidogrel 75 mg
Crestor 40 mg plus Brilinta 180 mg (initial dosis) and 90 mg bid up to 6-mo
Other Names:
  • Crestor & Brilinta
Zocor 40 mg plus Plavix 600 mg (initial dosis) and 75 mg daily up to 6-mo
Other Names:
  • Zocor plus Plavix
Zocor 40 mg plus Brilinta 180 mg (initial dosis) and 90 mg bid up to 6-mo
Other Names:
  • Zocor & Brilinta
Active Comparator: Rosuvastatin plus ticagrelor
Rosuvastatin 40 mg plus ticagrelor 90 mg bid
Zocor 40 mg plus Plavix 600 mg (initial dosis) and 75 mg daily up to 6-mo
Other Names:
  • Zocor plus Plavix
Zocor 40 mg plus Brilinta 180 mg (initial dosis) and 90 mg bid up to 6-mo
Other Names:
  • Zocor & Brilinta
Crestor 40 mg daily plus Plavix 600 mg (initial dosis) and 75 mg daily up to 6-mo
Other Names:
  • Crestor & Plavix
Active Comparator: simvastatin plus clopidogrel
Simvastatin 40 mg plus clopidogrel 75 mg
Crestor 40 mg plus Brilinta 180 mg (initial dosis) and 90 mg bid up to 6-mo
Other Names:
  • Crestor & Brilinta
Zocor 40 mg plus Brilinta 180 mg (initial dosis) and 90 mg bid up to 6-mo
Other Names:
  • Zocor & Brilinta
Crestor 40 mg daily plus Plavix 600 mg (initial dosis) and 75 mg daily up to 6-mo
Other Names:
  • Crestor & Plavix
Active Comparator: Simvastatin plus ticagrelor
Simvastatin 40 mg plus ticagrelor 90 mg bid
Crestor 40 mg plus Brilinta 180 mg (initial dosis) and 90 mg bid up to 6-mo
Other Names:
  • Crestor & Brilinta
Zocor 40 mg plus Plavix 600 mg (initial dosis) and 75 mg daily up to 6-mo
Other Names:
  • Zocor plus Plavix
Crestor 40 mg daily plus Plavix 600 mg (initial dosis) and 75 mg daily up to 6-mo
Other Names:
  • Crestor & Plavix

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Comparison of the left ventricular function (MRI) between the four combined treatments, after STEMI
Time Frame: 1-mo
The effects of treatments on the left ventricular function will be measured by MRI
1-mo

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To compare the effects of the four combined therapies on the left ventricular function after STEMI
Time Frame: 3-d
Variables will be examined by MRI
3-d
To compare the effects of the four combined therapies on the left ventricular function after STEMI
Time Frame: 6-mo
Variables will be examined by MRI
6-mo
To compare the effects of the four combined therapies on the infarcted mass area after STEMI
Time Frame: 1-mo
Variables will be examined by MRI
1-mo
To compare the effects of the four combined therapies on the infarcted mass area after STEMI
Time Frame: 6-mo
Variables will be examined by MRI
6-mo
To compare the effects of the four combined therapies on the percentage of subjects with left ventricular ejection fraction < 40% after STEMI
Time Frame: 1-mo
Variables will be examined by MRI
1-mo
To compare the effects of the four combined therapies on the percentage of subjects with left ventricular ejection fraction < 40% after STEMI
Time Frame: 6-mo
Variables will be examined by MRI
6-mo
To quantify the percentage and absolute number of B1, B2, TCD4, and TCD8 subtypes of lymphocytes and their correlation with left ventricular ejection fraction after STEMI
Time Frame: 1-d
Lymphocyte subtypes quantified by flow-cytometry and left ventricular ejection fraction by MRI
1-d
To quantify the percentage and absolute number of B1, B2, TCD4, and TCD8 subtypes of lymphocytes and their correlation with left ventricular ejection fraction after STEMI
Time Frame: 1-mo
Lymphocyte subtypes quantified by flow-cytometry and left ventricular ejection fraction by MRI
1-mo
To quantify the percentage and absolute number of B1, B2, TCD4, and TCD8 subtypes of lymphocytes and their correlation with left ventricular ejection fraction after STEMI
Time Frame: 6-mo
Lymphocyte subtypes quantified by flow-cytometry and left ventricular ejection fraction by MRI
6-mo
To quantify the percentage and absolute number of B1, B2, TCD4, and TCD8 subtypes of lymphocytes and their correlation with infarcted mass area after STEMI
Time Frame: 1-d
Lymphocyte subtypes quantified by flow-cytometry and infarcted mass area by MRI
1-d
To quantify the percentage and absolute number of B1, B2, TCD4, and TCD8 subtypes of lymphocytes and their correlation with infarcted mass area after STEMI
Time Frame: 1-mo
Lymphocyte subtypes quantified by flow-cytometry and infarcted mass area by MRI
1-mo
To quantify the percentage and absolute number of B1, B2, TCD4, and TCD8 subtypes of lymphocytes and their correlation with infarcted mass area after STEMI
Time Frame: 6-mo
Lymphocyte subtypes quantified by flow-cytometry and infarcted mass area by MRI
6-mo
To quantify the percentage and absolute number of B1, B2, TCD4, and TCD8 subtypes of lymphocytes and their correlation with left ventricular ejection fraction <40% after STEMI
Time Frame: 1-d
Lymphocyte subtypes quantified by flow-cytometry and left ventricular ejection fraction by MRI
1-d
To quantify the percentage and absolute number of B1, B2, TCD4, and TCD8 subtypes of lymphocytes and their correlation with left ventricular ejection fraction <40% after STEMI
Time Frame: 1-mo
Lymphocyte subtypes quantified by flow-cytometry and left ventricular ejection fraction by MRI
1-mo
To quantify the percentage and absolute number of B1, B2, TCD4, and TCD8 subtypes of lymphocytes and their correlation with left ventricular ejection fraction <40% after STEMI
Time Frame: 6-mo
Lymphocyte subtypes quantified by flow-cytometry and left ventricular ejection fraction by MRI
6-mo

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Relationship between gut microbiota and diabetes status after STEMI
Time Frame: 1-3d
Intestinal microbiota will be genotyped and diabetes status (non-diabetic, pre-diabetic or diabetic) according to HbA1c levels.
1-3d
Relationship between gut microbiota and diabetes status after STEMI
Time Frame: 1-mo
Intestinal microbiota will be genotyped and diabetes status (non-diabetic, pre-diabetic or diabetic) according to HbA1c levels.
1-mo
Relationship between gut microbiota and diabetes status
Time Frame: 6-mo
Intestinal microbiota will be genotyped and diabetes status (non-diabetic, pre-diabetic or diabetic) according to HbA1c levels.
6-mo
Relationship between gut microbiota and metabolomics
Time Frame: 1-3d
Intestinal microbiota will be genotyped and metabolomics by LC/MS-MS
1-3d
Relationship between gut microbiota and metabolomics
Time Frame: 1-mo
Intestinal microbiota will be genotyped and metabolomics by LC/MS-MS
1-mo
Relationship between gut microbiota and metabolomics
Time Frame: 6-mo
Intestinal microbiota will be genotyped and metabolomics by LC/MS-MS
6-mo
Comparison between the four arm of combined therapies on microparticles and endothelial progenitor cells
Time Frame: 1-d
Endothelial, platelet, and monocyte-derived microparticles as well as endothelial progenitor cells will be quantified by flow-cytometry
1-d
Comparison between the four arm of combined therapies on microparticles and endothelial progenitor cells
Time Frame: 1-mo
Endothelial, platelet, and monocyte-derived microparticles as well as endothelial progenitor cells will be quantified by flow-cytometry
1-mo
Comparison between the four arm of combined therapies on microparticles and endothelial progenitor cells
Time Frame: 6-mo
Endothelial, platelet, and monocyte-derived microparticles as well as endothelial progenitor cells will be quantified by flow-cytometry
6-mo
Correlation between the severity of coronary disease with antibodies against oxidized LDL and peptide D of apolipoprotein B of LDL
Time Frame: 1-d
Antibodies IgG and IgM against oxidized LDL as well as against peptide D of LDL will be quantified by ELISA. Coronary disease severity will be quantified by the Gensini Score
1-d
Comparison between the four arms of combined therapies on TIMI flow grade and blush grade
Time Frame: 1-d
TIMI flow grade and blush grade will be determined based on coronary angiogram obtained at baseline by two independent and blinded certified invasive cardiologists
1-d
Relationship between no-reflow images obtained at MRI with metabolomics
Time Frame: 1-d
Metabolomics will be determined by LC/MS-MS and images by MRI
1-d
Relationship between no-reflow images obtained at MRI with metabolomics
Time Frame: 1-mo
Metabolomics will be determined by LC/MS-MS and images by MRI
1-mo
Relationship between no-reflow images obtained at MRI with metabolomics
Time Frame: 6-mo
Metabolomics will be determined by LC/MS-MS and images by MRI
6-mo

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Francisco A Fonseca, MD, PhD, Federal University of São Paulo

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

May 1, 2015

Primary Completion (Anticipated)

April 1, 2018

Study Completion (Anticipated)

July 1, 2019

Study Registration Dates

First Submitted

March 10, 2015

First Submitted That Met QC Criteria

April 27, 2015

First Posted (Estimate)

April 28, 2015

Study Record Updates

Last Update Posted (Estimate)

June 11, 2015

Last Update Submitted That Met QC Criteria

June 10, 2015

Last Verified

June 1, 2015

More Information

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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