Research on Infarction With Open Arteries Using OCT and CMR
RIO
1 other identifier
interventional
15
1 country
1
Brief Summary
The purpose of this study is to determine the prevalence of plaque disruption and to assess the composition of disrupted plaques in patients with myocardial infarction (MI) and non-obstructive coronary artery disease (CAD) using optical coherence tomography (OCT). Additionally, cardiac magnetic resonance imaging (CMR) will be used to detect myocardial abnormalities, which will be correlated to OCT findings to gain insight into the mechanisms of MI in patients with non-obstructive coronary artery disease (i.e. "open arteries").
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Apr 2014
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2014
CompletedFirst Submitted
Initial submission to the registry
October 1, 2014
CompletedFirst Posted
Study publicly available on registry
October 21, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 31, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
October 31, 2025
CompletedSeptember 17, 2025
September 1, 2025
11.6 years
October 1, 2014
September 15, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The prevalence of plaque disruption
1 Week
Secondary Outcomes (1)
Prevalence and pattern of LGE and myocardial edema Prevalence of different plaque types according to OCT Proportion of patients with identifiable MI etiology based on study testing
1 week
Other Outcomes (1)
Event rate in follow-up: death, MI, heart failure, stroke
1 Year
Study Arms (1)
MI without obstructive CAD
OTHERMI without obstructive CAD, with OCT and CMR imaging
Interventions
Optical coherence tomography (OCT): Intracoronary imaging for amount and type of plaque as well as plaque rupture, ulceration, dissection and/or thrombosis.
Cardiac magnetic resonance imaging (CMR): MRI of the heart to identify areas of infarction (damage) and/or edema (smelling)
Gadolinium contrast will be administered during CMR
Eligibility Criteria
You may qualify if:
- Acute ischemic symptoms compatible with diagnosis of acute coronary syndrome (ACS) (chest pain or anginal equivalent symptoms at rest or new onset exertional anginal equivalent symptoms)
- Objective evidence of myocardial infarction (either or both of the following): Elevation of troponin to above the laboratory upper limit of normal (ULN) or ST segment elevation of ≥1mm on 2 contiguous ECG leads
- Willing to provide informed consent and comply with all aspects of the protocol
- Age ≥ 21 years
You may not qualify if:
- Stenosis ≥50% of any major epicardial vessel on invasive angiography, as determined by the angiographer at the time of clinically ordered cardiac cath.
- History of known obstructive CAD at angiography, including history of percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG)
- Recent use of vasospastic agents, such as cocaine, triptans, 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
- Coronary dissection apparent on angiography
- Excessive coronary tortuosity which, in the opinion of the angiographer, increases the risks of OCT
- eGFR\<30 or contraindication to additional contrast needed for OCT in the opinion of the angiographer or treating physician
- Contraindication to MRI (including but not limited to MRI-incompatible metal implants or foreign bodies)
- Pregnancy
- Thrombolytic therapy for STEMI (qualifying event)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
NYU Langone Medical Center
New York, New York, 10016, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Harmony Reynolds, MD
NYU Langone Medical Center
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 1, 2014
First Posted
October 21, 2014
Study Start
April 1, 2014
Primary Completion
October 31, 2025
Study Completion
October 31, 2025
Last Updated
September 17, 2025
Record last verified: 2025-09