- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03338309
INsTantenous wavE-Free Ratio-guided PCI Versus Fractional Flow REserve-Guided PCI in rouTine Clinical Practice, Prospective, Multicenter Registry (INTERPRET)
Multicenter Registry for Instantaneous Wave-Free Ratio (iFR)-Guided Percutaneous Coronary Intervention in Routine Clinical Practice
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
In this study, the investigators will validate the clinical relevance of instantaneous wave free ratio (iFR)-guided strategy in real world clinical practice in Korea. The 1,200 patients who underwent iFR measurement will be prospectively enrolled at 5 centers in Republic of Korea. In patients who were indicated revascularization after iFR measurement (iFR<0.90), iFR pullback system (iFR Scout) and post-revascularization iFR measurement will be routinely performed. The primary hypothesis will be tested for non-inferiority of iFR-guided strategy, compared with FFR-guided strategy in terms of 2-year clinical outcomes. For the clinical outcome data following FFR-guided strategy will be used from the pooled data of the DEFER-DES trial, the 3V FFR FRIENDS registry (NCT01621438), and Korean 4-center FFR registry. Using those data, 1200 patients will be selected from the pooled data. In addition, routine application of iFR Scout and post-revascularization iFR measurement will enable us to validate the clinical relevance of iFR-based prediction of acute procedural results and to compare FFR-pullback methods.
Primary Hypothesis: The iFR-guided strategy will be non-inferior regarding patient-oriented composite outcomes (a composite of any death, any MI, any revascularization) at 2-year, compared with FFR-guided strategy.
Primary Outcome:
1] Patient-oriented composite outcome (POCO), defined as a composite of any death, any myocardial infarction (MI) or any revascularization at 2-year after index procedure according to the ARC consensus [2] Difference between Predicted post-PCI iFR value from iFR Scout and Actual post-PCI iFR measurement
Sample Size 1,200 patients with suspected ischemic heart disease including stable angina, or acute coronary syndrome including unstable angina, non ST-segment elevation MI, or ST-segment elevation MI with non-culprit stenosis enrolled at 5 centers in Republic of Korea.
Inclusion Criteria
① Subject must be ≥18 years
② Patients suspected with ischemic heart disease
③ Patients with coronary artery stenosis with intermediate degree of stenosis (40-70% stenosis by visual estimation) in major epicardial coronary artery amenable to stent implantation or vessel size≥2.5 mm without definitive previous evidence of myocardial ischemia.
④ Subject is able to verbally confirm understandings of risks, benefits and treatment alternatives of receiving invasive physiologic evaluation and he/she or his/her legally authorized representative provides
Exclusion criteria
Cardiogenic shock (systolic blood pressure < 90mmHg or requiring inotropics to maintain blood pressure > 90mmHg) ② Patients with a known hypersensitivity or contraindication to any of the following medications: statin, ezetimibe, heparin, aspirin, clopidogrel, prasugrel, ticagrelor
Non-cardiac co-morbid conditions are present with life expectancy <2 year (per site investigator's medical judgment).
- History of bleeding diathesis, known coagulopathy (including heparin-induced thrombocytopenia) ⑤ Patients with active pathologic bleeding ⑥ Gastrointestinal or genitourinary major bleeding within the prior 3 months. ⑦ Target lesion located in coronary arterial bypass graft
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
-
-
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Daegu, Korea, Republic of
- Keimyung University Dongsan Medical Center
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Goyang, Korea, Republic of
- Inje University Ilsan Paik Hospital
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Seoul, Korea, Republic of
- Seoul National University Hospital
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Seoul, Korea, Republic of
- Samsung Medical Center
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
Subject must be ≥18 years
Patients suspected with ischemic heart disease ③ Patients with coronary artery stenosis with intermediate degree of stenosis (40-70% stenosis by visual estimation) in major epicardial coronary artery amenable to stent implantation or vessel size≥2.5 mm without definitive previous evidence of myocardial ischemia.
- Subject is able to verbally confirm understandings of risks, benefits and treatment alternatives of receiving invasive physiologic evaluation and he/she or his/her legally authorized representative provides
Exclusion Criteria:
Cardiogenic shock (systolic blood pressure < 90mmHg or requiring inotropics to maintain blood pressure > 90mmHg)
Patients with a known hypersensitivity or contraindication to any of the following medications: statin, ezetimibe, heparin, aspirin, clopidogrel, prasugrel, ticagrelor ③ Non-cardiac co-morbid conditions are present with life expectancy <2 year (per site investigator's medical judgment).
History of bleeding diathesis, known coagulopathy (including heparin-induced thrombocytopenia)
- Patients with active pathologic bleeding ⑥ Gastrointestinal or genitourinary major bleeding within the prior 3 months. ⑦ Target lesion located in coronary arterial bypass graft
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Only
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
iFR-guied strategy group
1,200 patients with suspected ischemic heart disease including stable angina, or acute coronary syndrome including unstable angina, non ST-segment elevation MI, or ST-segment elevation MI with non-culprit stenosis who underwent iFR measurement and enrolled at 5 centers in Republic of Korea.
|
Instantaneous wave-free ratio measurement in order to evaluate functional significance of epicardial stenosis
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Patient-oriented composite outcome (POCO)
Time Frame: at 2-year after index procedure
|
a composite of any death, any myocardial infarction (MI) or any revascularization according to the ARC consensus
|
at 2-year after index procedure
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Difference between Predicted post-PCI iFR value from iFR Scout and Actual post-PCI iFR measurement
Time Frame: Immediate after post revascularization
|
Difference between Predicted post-PCI iFR value from iFR Scout and Actual post-PCI iFR measurement
|
Immediate after post revascularization
|
Collaborators and Investigators
Sponsor
Investigators
- Study Director: Bon-Kwon Koo, MD, PhD, Seoul National University Hospital
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- NCT104658359911
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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