Heart Attack Research Program: Platelet Sub-Study (HARP)

Description

This prospective observational cohort study, will investigate the platelet phenotype, platelet genetic composition, and role of platelets as effector cells in women and men with myocardial infarction (MINOCA or MI-CAD) and controls. This study, which will take place at NYU and Bellevue Medical Center, and participating external sites. May have concurrent enrollment with the HARP Main Imaging (NCT02914483). Additionally, a sex, group of age and race matched disease controls 'CATH-NOCA' composed of women and men with stable angina referred for cardiac catheterization, will be enrolled. Blood obtained during the initial catheterization and 2 months post-MI will be utilized for platelet testing.

Conditions

Myocardial Infarction

Talk to us

Study Overview

On this page

Study Details

Study overview

This prospective observational cohort study, will investigate the platelet phenotype, platelet genetic composition, and role of platelets as effector cells in women and men with myocardial infarction (MINOCA or MI-CAD) and controls. This study, which will take place at NYU and Bellevue Medical Center, and participating external sites. May have concurrent enrollment with the HARP Main Imaging (NCT02914483). Additionally, a sex, group of age and race matched disease controls 'CATH-NOCA' composed of women and men with stable angina referred for cardiac catheterization, will be enrolled. Blood obtained during the initial catheterization and 2 months post-MI will be utilized for platelet testing.

Heart Attack Research Program: Platelet Sub-Study (HARP); Platelet Collection for Patients With Myocardial Infarction

Heart Attack Research Program: Platelet Sub-Study (HARP)

Condition
Myocardial Infarction
Intervention / Treatment

-

Contacts and Locations

New York

NYU Langone Medical Center, New York, New York, United States, 10016

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.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Acute ischemic symptoms compatible with diagnosis of MI, such as chest pain or anginal equivalent symptoms at rest or new onset exertional anginal equivalent symptoms
  • * Objective evidence of MI (either or both of the following):
  • * Elevation of troponin to above the laboratory upper limit of normal (ULN)
  • * ST segment elevation of ≥1mm on 2 contiguous ECG leads
  • * Willing to provide informed consent and comply with all aspects of the protocol
  • * Administration of aspirin at least 1 hour before cardiac catheterization
  • * Administration of thienopyridine (e.g., clopidogrel, ticagrelor) at least 1 hour before cardiac catheterization
  • * Women and men with ≥50% of any major epicardial vessel on invasive angiography may participate
  • * Recent use of vasospastic agents, such as cocaine, triptans, or ergot alkaloids (≤1 month)
  • * Alternate explanation for troponin elevation, such as hypertensive urgency, acute exacerbation of heart failure, chronic elevation due to kidney disease, pulmonary embolism, cardiac trauma
  • * Pregnancy
  • * Thrombolytic therapy for STEMI (qualifying event)
  • * Use of any of the following medications:
  • * Platelet antagonists (except aspirin and thienopyridines) within 7 days
  • * NSAIDs (e.g., ibuprofen, naproxen) within 3 days.
  • * Thrombocytopenia (platelet count \<100,000)
  • * Thrombocytosis (platelet count \>500,000)
  • * Anemia (hemoglobin \<9 mg/dl)
  • * Hemorrhagic diathesis

Ages Eligible for Study

21 Years to 99 Years

Sexes Eligible for Study

FEMALE

Accepts Healthy Volunteers

Yes

Collaborators and Investigators

NYU Langone Health,

Harmony R Reynolds, MD, PRINCIPAL_INVESTIGATOR, NYU Langone Medical Center

Study Record Dates

2026-06-30