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Morphological Evaluation of Culprit Lesion in Patients with Acute Myocardial Infarction Using Coronary Angioscopy and Optical Coherence Tomography

Morphological Evaluation of Culprit Lesion in Patients with Acute Myocardial Infarction Using Coronary Angioscopy and Optical Coherence Tomography - COLLABORATION Morphology Study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000043669
Enrollment
30
Registered
2021-03-19
Start date
2021-04-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute myocardial infarction

Interventions

To observe intravascular status using optical coherence tomography and high-resolution coronary angioscopy continuously immediately after obtaining TIMI 3 flow.

Sponsors

Kansai Rosai Hospital Cardiovascular Center
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Twenty years of age or over at the time of informed consent 2) Singed informed consent after receiving the explanation about the study protocol 3) ST elevation myocardial infarction or non-ST elevation myocardial infarction 4) Arrival at the hospital within 12 hours from the onset of the symptom 5) Identifiable culprit lesion in a native coronary artery by coronary angiography

Exclusion criteria

Exclusion criteria: 1) Pregnancy 2) In-stent restenosis 3) Cardiogenic shock 4) Active bleeding complication 5) Participation or scheduled to participate to the other clinical trial or interventional study 6) Life expectancy within 1 year 7) Severe dementia 8) Severe chronic insufficiency or hemodialysis 9) Inappropriate to the study judged by investigators 10) Lesion in left main trunk 11) Previous history of old myocardial infarction 12) Impossible to obtain TIMI 3 flow before OCT and CAS evaluation 13) Impossible to perform sufficient observation by OCT or CAS

Design outcomes

Primary

MeasureTime frame
To compare the findings between high-resolution coronary angioscopy (CAS) and optical coherence tomography (OCT) as follows: 1) CAS thrombus and OCT findings 2) Specific findings by CAS and OCT findings 3) Fibrous cap thickness by OCT and CAS findings

Secondary

MeasureTime frame
To compare the detection power between CAS and OCT as follows: 1) Morphology of acute myocardial infarction 2) Presence of thrombus 3) Presence of lipid-rich plaque

Countries

Japan

Contacts

Public ContactTakuya Tsujimura

Kansai Rosai Hospital Cardiovascular Center

t.tsujimura0110@gmail.com06-6416-1221

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026