FFR Versus IVUS with Angiography-Derived FFR for Clinical Outcomes in Patients with Coronary Artery Disease

NCT ID: NCT06218485

Last Updated: 2025-02-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

1942 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-03-13

Study Completion Date

2029-12-01

Brief Summary

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To compare the clinical outcomes of fractional flow reserve (FFR)-guided strategy versus intravascular ultrasound (IVUS)-guided stent implantation after angiography-derived FFR-based decision-making.

Detailed Description

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1. Hypothesis: The IVUS-guided stent implantation after angiography-derived FFR-based decision-making will show superiority in terms of a lower rate of patients-oriented composite outcomes (POCO) at 24 months after randomization compared with the FFR-guided PCI strategy in patients with coronary stenosis.
2. Research materials and indication for revascularization:

2.1 Experimental group: PCI will be performed if angiography-derived FFR ≤0.80 and will be deferred if angiography-derived FFR \>0.80; If PCI is performed, PCI optimization using IVUS will be performed following the recommended criteria: ① Plaque burden at stent edge ≤55%; ② Minimal stent area ≥ 5.5 mm2, or minimal stent area ≥ distal reference lumen area.

2.2 Control group: PCI will be performed if FFR ≤0.80 and will be deferred if FFR \>0.80; If PCI is performed, PCI optimization using FFR will be performed following the recommended criteria: ① Post-PCI FFR ≥ 0.88, or ② Post-PCI ΔFFR (\[FFR at stent distal edge\] - \[FFR at stent proximal edge\]) \< 0.05.
3. Sample size: In the post-hoc analysis of the FLAVOUR I study applying QFR analysis, the 2-year POCO rate was 13.0% in the PCI group with FFR ≤0.80 and undergoing FFR-based PCI optimization and 7.1% in the PCI group with QFR ≤0.80 and undergoing IVUS-based PCI optimization. Meanwhile, the 2-year POCO rate was 5.8% and 6.5% in the deferral of PCI group with FFR \>0.80 and QFR \>0.80, respectively. Assuming a PCI rate of 70% in patients with coronary artery lesions with 50-90% stenosis that is the inclusion criteria for the current study, and considering event rates from historical studies evaluating FFR- and QFR-guided PCI strategies, the cumulative incidence rate of POCO at 24 months was estimated to be 13.0% in the control group (FFR group) and 9.0% in the experimental group (QFR-IVUS group).

* Primary endpoint: POCO, defined as a composite of death from any cause, MI, or any revascularization at 24 months after randomization.
* Design: superiority
* Sampling ratio: experimental group : control group = 1:1
* Type I error (α): One-sided 2.5%
* Accrual time: 24 months
* Total time: 4 years (accrual 24 months + follow-up 24 months)
* Assumption: POCO 13.0% vs. 9.0% in control or experimental group, respectively
* Statistical power (1- β): 90%
* Primary statistical method: Kaplan-Meier survival analysis with log-rank test
* Estimated attrition rate: total 10%
* Stratification in randomization: Presence of diabetes mellitus

Based on the above assumption, we would need total 1,942 patients (971 patients in each group) with consideration of an attrition rate.

Conditions

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Coronary Artery Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Parallel Assignment
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Experimental group

The percutaneous coronary intervention will be performed by intravascular ultrasound (IVUS)-guided strategy after angiography-derived FFR-based decision-making.

Group Type EXPERIMENTAL

Intravascular ultrasound-guided stent implantation after angiography-derived FFR-based decision-making

Intervention Type PROCEDURE

The percutaneous coronary intervention will be performed by intravascular ultrasound (IVUS)-guided strategy after angiography-derived FFR-based decision-making:

1. PCI will be performed if angiography-derived FFR ≤0.80 and will be deferred if angiography-derived FFR \>0.80.
2. If PCI is performed, PCI optimization using IVUS will be performed following the recommended criteria: ① Plaque burden at stent edge ≤55%; ② Minimal stent area ≥ 5.5 mm2, or minimal stent area ≥ distal reference lumen area

Control group

The percutaneous coronary intervention will be performed by fractional flow reserve (FFR)-guided strategy.

Group Type ACTIVE_COMPARATOR

Fractional flow reserve-guided PCI strategy

Intervention Type PROCEDURE

The percutaneous coronary intervention will be performed by fractional flow reserve (FFR)-guided strategy:

1. PCI will be performed if FFR ≤0.80 and will be deferred if FFR \>0.80.
2. If PCI is performed, PCI optimization using FFR will be performed following the recommended criteria: ① Post-PCI FFR ≥ 0.88, or ② Post-PCI ΔFFR (\[FFR at stent distal edge\] - \[FFR at stent proximal edge\]) \< 0.05

Interventions

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Intravascular ultrasound-guided stent implantation after angiography-derived FFR-based decision-making

The percutaneous coronary intervention will be performed by intravascular ultrasound (IVUS)-guided strategy after angiography-derived FFR-based decision-making:

1. PCI will be performed if angiography-derived FFR ≤0.80 and will be deferred if angiography-derived FFR \>0.80.
2. If PCI is performed, PCI optimization using IVUS will be performed following the recommended criteria: ① Plaque burden at stent edge ≤55%; ② Minimal stent area ≥ 5.5 mm2, or minimal stent area ≥ distal reference lumen area

Intervention Type PROCEDURE

Fractional flow reserve-guided PCI strategy

The percutaneous coronary intervention will be performed by fractional flow reserve (FFR)-guided strategy:

1. PCI will be performed if FFR ≤0.80 and will be deferred if FFR \>0.80.
2. If PCI is performed, PCI optimization using FFR will be performed following the recommended criteria: ① Post-PCI FFR ≥ 0.88, or ② Post-PCI ΔFFR (\[FFR at stent distal edge\] - \[FFR at stent proximal edge\]) \< 0.05

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Subject must be ≥ 19 years.
* Subject is able to verbally confirm understanding of risks, benefits and treatment alternatives of receiving invasive physiologic or imaging evaluation and PCI with a drug-eluting stent (DES) and he/she or his/her legally authorized representative provides written informed consent.
* Subjects suspected with ischemic heart disease.
* Subjects with coronary artery diameter stenosis 50-90% by angiography-based visual estimation eligible for stent implantation.
* Target vessel size ≥ 2.5mm in visual estimation.

Exclusion Criteria

* Known hypersensitivity or contraindication to any of the following medications: Heparin, Aspirin, Clopidogrel, Prasugrel, Ticagrelor
* Active pathologic bleeding.
* Gastrointestinal or genitourinary major bleeding within the prior 3 months.
* History of bleeding diathesis, known coagulopathy.
* Non-cardiac co-morbid conditions with life expectancy \< 2 years.
* Target lesion located in coronary arterial bypass graft.
* Left main coronary artery stenosis ≥ 50%.
* Chronic total occlusion in the study target vessel.
* Culprit lesion of ST-elevation myocardial infarction (STEMI).
* Not eligible for angiography-derived FFR (ostial RCA ≥ 50% stenosis, severe tortuosity, severe overlap, poor image quality).
Minimum Eligible Age

19 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Seoul National University Hospital

OTHER

Sponsor Role collaborator

Peking University Third Hospital

OTHER

Sponsor Role collaborator

RenJi Hospital

OTHER

Sponsor Role collaborator

Second Affiliated Hospital of Shantou University Medical College

OTHER

Sponsor Role collaborator

The First Affiliated Hospital of Nanchang University

OTHER

Sponsor Role collaborator

First Affiliated Hospital of Kunming Medical University

OTHER

Sponsor Role collaborator

The Fourth People's Hospital of Jinan

UNKNOWN

Sponsor Role collaborator

Jinhua Central Hospital

OTHER

Sponsor Role collaborator

The Affiliated Hospital of Hangzhou Normal University

OTHER

Sponsor Role collaborator

Changxing People's Hospital

OTHER

Sponsor Role collaborator

First Affiliated Hospital of Wenzhou Medical University

OTHER

Sponsor Role collaborator

The Affiliated Hospital of Medical College, Ningbo University

OTHER

Sponsor Role collaborator

Keimyung University Dongsan Medical Center

OTHER

Sponsor Role collaborator

Inje University Ilsan Paik Hospital

OTHER

Sponsor Role collaborator

Ulsan University Hospital

OTHER

Sponsor Role collaborator

Uijeongbu Eulji Medical Center

UNKNOWN

Sponsor Role collaborator

Kyungpook National University Hospital

OTHER

Sponsor Role collaborator

Seoul St. Mary's Hospital

OTHER

Sponsor Role collaborator

Yonsei University Wonju Severance Hospital

UNKNOWN

Sponsor Role collaborator

Inje University Haeundae Paik Hospital

OTHER

Sponsor Role collaborator

Sejong General Hospital

OTHER

Sponsor Role collaborator

Chonnam National University Hospital

OTHER

Sponsor Role collaborator

Ningbo Medical Center Lihuili Hospital

OTHER_GOV

Sponsor Role collaborator

The Affiliated Hospital of Shandong University of TCM

UNKNOWN

Sponsor Role collaborator

Second Affiliated Hospital, School of Medicine, Zhejiang University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jian'an Wang, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Second Affiliated Hospital, School of Medicine, Zhejiang University

Bon-Kwon Koo, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Seoul National University Hospital

Locations

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Peking University Third Hospital

Beijing, , China

Site Status RECRUITING

Second Affiliated Hospital of Shantou University Medical College

Guangdong, , China

Site Status RECRUITING

The Affiliated Hospital of Hangzhou Normal University

Hangzhou, , China

Site Status RECRUITING

The Second Affiliated Hospital of Zhejiang University School of Medicine

Hangzhou, , China

Site Status NOT_YET_RECRUITING

Changxing People's Hospital

Huzhou, , China

Site Status RECRUITING

The Affiliated Hospital of Shandong University of TCM

Jinan, , China

Site Status NOT_YET_RECRUITING

The Fourth People's Hospital of Jinan

Jinan, , China

Site Status RECRUITING

Jinhua Central Hospital

Jinhua, , China

Site Status RECRUITING

First Affiliated Hospital of Kunming Medical University

Kunming, , China

Site Status NOT_YET_RECRUITING

The First Affiliated Hospital of Nanchang University

Nanchang, , China

Site Status RECRUITING

Ningbo Medical Center Lihuili Hospital

Ningbo, , China

Site Status NOT_YET_RECRUITING

The Affiliated Hospital of Medical College, Ningbo University

Ningbo, , China

Site Status RECRUITING

Renji Hospital Shanghai Jiaotong University School of Medicine

Shanghai, , China

Site Status NOT_YET_RECRUITING

The First Affiliated hospital of Wenzhou Medical University

Wenzhou, , China

Site Status RECRUITING

Bucheon Sejong Hospital

Bucheon-si, , South Korea

Site Status NOT_YET_RECRUITING

Inje University Haeundae Paik Hospital

Busan, , South Korea

Site Status NOT_YET_RECRUITING

Keimyung University Dongsan Medical Center

Daegu, , South Korea

Site Status NOT_YET_RECRUITING

Kyungpook National University Hospital

Daegu, , South Korea

Site Status NOT_YET_RECRUITING

Chonnam National University Hospital

Donggu, , South Korea

Site Status NOT_YET_RECRUITING

Inje University Ilsan Paik Hospital

Goyang, , South Korea

Site Status NOT_YET_RECRUITING

Seoul National University Hospital,

Seoul, , South Korea

Site Status RECRUITING

Seoul ST. Mary's Hospital

Seoul, , South Korea

Site Status NOT_YET_RECRUITING

Uijeongbu Eulji Medical Center

Uijeongbu-si, , South Korea

Site Status NOT_YET_RECRUITING

Ulsan University Hospital

Ulsan, , South Korea

Site Status NOT_YET_RECRUITING

Yonsei University Wonju Severance Hospital

Wŏnju, , South Korea

Site Status NOT_YET_RECRUITING

Countries

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China South Korea

Central Contacts

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Xinyang Hu, MD, PhD

Role: CONTACT

+86 0571 87784808

Jinlong Zhang, MD, PhD

Role: CONTACT

+86 15757197513

Facility Contacts

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Lijun Guo, MD, PhD

Role: primary

Jilin Li, MD

Role: primary

Fan Jiang, MD, PhD

Role: primary

Xinyang Hu, MD, PhD

Role: primary

Dongsheng Lu, MD

Role: primary

Jianliang Ma, MD

Role: primary

Qiang Liu, MD

Role: primary

Yibin Pan, MD

Role: primary

Zhaohui Meng, MD

Role: primary

Xiaoping Peng, MD

Role: primary

Wanying Hu, MD

Role: primary

Wenming He, MD

Role: primary

Jun Pu

Role: primary

Hao Zhou

Role: primary

Hyun-Jong Lee, MD, PhD

Role: primary

Dong-Kie Kim, MD, PhD

Role: primary

Chang-Wook Nam, MD, PhD

Role: primary

Jang Hoon Lee, MD, PhD

Role: primary

Young Joon Hong, MD, PhD

Role: primary

Joon-Hyung Doh, MD, PhD

Role: primary

Bon-Kwon Koo, MD

Role: primary

82-2-2072-2062

Kwan Yong Lee, MD, PhD

Role: primary

You-Jeong Ki, MD, PhD

Role: primary

Eun-Seok Shin, MD

Role: primary

Sung Gyun Ahn, MD, PhD

Role: primary

References

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Fearon WF, Achenbach S, Engstrom T, Assali A, Shlofmitz R, Jeremias A, Fournier S, Kirtane AJ, Kornowski R, Greenberg G, Jubeh R, Kolansky DM, McAndrew T, Dressler O, Maehara A, Matsumura M, Leon MB, De Bruyne B; FAST-FFR Study Investigators. Accuracy of Fractional Flow Reserve Derived From Coronary Angiography. Circulation. 2019 Jan 22;139(4):477-484. doi: 10.1161/CIRCULATIONAHA.118.037350.

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Other Identifiers

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2023-0896

Identifier Type: -

Identifier Source: org_study_id

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