This is the classic website, which will be retired eventually. Please visit the modernized ClinicalTrials.gov instead.
Working…
ClinicalTrials.gov
ClinicalTrials.gov Menu

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

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT03022552
Recruitment Status : Recruiting
First Posted : January 16, 2017
Last Update Posted : April 2, 2024
Sponsor:
Information provided by (Responsible Party):
NYU Langone Health

Brief Summary:
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.

Condition or disease
Myocardial Infarction

Layout table for study information
Study Type : Observational [Patient Registry]
Estimated Enrollment : 350 participants
Observational Model: Cohort
Time Perspective: Prospective
Target Follow-Up Duration: 6 Months
Official Title: Heart Attack Research Program: Platelet Sub-Study (HARP); Platelet Collection for Patients With Myocardial Infarction
Actual Study Start Date : July 1, 2020
Estimated Primary Completion Date : June 30, 2025
Estimated Study Completion Date : June 30, 2025

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Heart Attack

Group/Cohort
MINOCA
Women with myocardial infarction (MI) with demonstrated non-obstructive coronary artery disease during cardiac catheterization (less than 50% blockage in any major vessel).
MI-CAD
Women with myocardial infarction (MI) with demonstrated obstructive coronary artery disease during cardiac catheterization (50% or greater blockage in any major vessel) or previous history of percutaneous coronary intervention (PCI) or or coronary artery bypass graft (CABG).
CATH-NOCA
Women with stable angina that are age and race matched to women in the MINOCA arm that are clinically referred for cardiac catheterization



Primary Outcome Measures :
  1. Examination of Platelet Activity Markers [ Time Frame: 1 year ]
  2. Examination of Markers of Cardiovascular Disease Risk [ Time Frame: 1 year ]
    This will include additional examination of known thrombosis, Inflammation, metabolic disease, and lipids/lipoprotein markers.

  3. Cellular and molecular mechanism of myocardial infarction in women [ Time Frame: 1 year ]
    To further investigate this mechanism, recent advances in microRNA, RNA, DNA expression profiling, and plasma and serum collections will be used.


Secondary Outcome Measures :
  1. Examination of non-coding and coding mRNA profiles in women with MI and matched controls [ Time Frame: 4 years ]
    Specific transcripts associated with platelet activation, plaque destabilization, and different cardiovascular diseases will be analyzed at the genetic level.


Biospecimen Retention:   Samples With DNA
Blood Collection


Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Layout table for eligibility information
Ages Eligible for Study:   21 Years to 99 Years   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
This study may have concurrent enrollment with the HARP Main Imaging (NCT02905357). This study population includes women and men who present to the hospital with an MI, with non-obstructive coronary artery disease or obstructive artery disease, are eligible for blood collection. Additionally, a sex, group of age and race matched disease controls 'CATH-NOCA' will be composed of women and men with stable angina referred for cardiac catheterization.
Criteria

Inclusion 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

Exclusion Criteria:

  • 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

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): NCT03022552


Contacts
Layout table for location contacts
Contact: Jeffrey Berger, MD 212 263 4004 jeffrey.berger@nyumc.org
Contact: Harmony R Reynolds, MD 646-501-0302 harmony.reynolds@nyumc.org

Locations
Layout table for location information
United States, New York
NYU Langone Medical Center Recruiting
New York, New York, United States, 10016
Contact: Jeffrey Berger, MD         
Sponsors and Collaborators
NYU Langone Health
Investigators
Layout table for investigator information
Principal Investigator: Harmony R Reynolds, MD NYU Langone Medical Center
Additional Information:

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Layout table for additonal information
Responsible Party: NYU Langone Health
ClinicalTrials.gov Identifier: NCT03022552    
Other Study ID Numbers: 16-01104-3
First Posted: January 16, 2017    Key Record Dates
Last Update Posted: April 2, 2024
Last Verified: April 2024
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: De-identified data will be shared after the end of the study.

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by NYU Langone Health:
Myocardial Infarction
Platelets
Blood Collection
Genomics
Additional relevant MeSH terms:
Layout table for MeSH terms
Myocardial Infarction
Infarction
Ischemia
Pathologic Processes
Necrosis
Myocardial Ischemia
Heart Diseases
Cardiovascular Diseases
Vascular Diseases