QFR-Guided Virtual Stenting for Preprocedural Physiological Optimization of Percutaneous Coronary Intervention: A Randomized Controlled Trial (FAVOR-Virtual)
A Multicenter, Prospective, Randomized Controlled Trial of Preprocedural Physiological Optimization of Percutaneous Coronary Intervention Using Coronary Imaging-Physiology Fusion-Based Virtual Stenting Technology
Coronary angiography-guided percutaneous coronary intervention (PCI) remains the standard treatment strategy for patients with coronary artery disease; however, suboptimal post-PCI physiological outcomes remain common and are associated with adverse cardiovascular prognosis. Quantitative Flow Ratio (QFR)-based virtual stenting technology enables simulation of post-intervention coronary physiology before PCI and may facilitate individualized optimization of stent implantation strategies.
This multicenter, prospective, randomized controlled trial aims to evaluate whether preprocedural physiological optimization of PCI using coronary imaging-physiology fusion-based virtual stenting technology improves clinical outcomes compared with conventional angiography-guided PCI. Eligible patients undergoing PCI for coronary artery disease will be randomized in a 1:1 ratio to either virtual stenting-guided PCI optimization or standard angiography-guided PCI.
The primary endpoint is major adverse cardiovascular events (MACE), defined as a composite of all-cause death, nonfatal myocardial infarction, and ischemia-driven repeat revascularization within 1 year after PCI. Secondary endpoints include post-PCI physiological optimization, cardiovascular death or nonfatal myocardial infarction, repeat revascularization, quality of life, procedural safety, and health economic outcomes.
연구 개요
상태
상세 설명
Percutaneous coronary intervention (PCI) guided by coronary angiography remains the current standard treatment approach for coronary artery disease. However, angiographic optimization does not necessarily correspond to physiological optimization, and a considerable proportion of patients experience suboptimal post-PCI coronary physiological results, which are associated with increased risks of adverse cardiovascular events.
Quantitative Flow Ratio (QFR)-derived physiological assessment provides a non-wire, angiography-based method for functional evaluation of coronary lesions. Recent developments in virtual stenting technology enable simulation of residual coronary physiology after hypothetical stent implantation, thereby allowing preprocedural prediction of post-PCI QFR and optimization of interventional strategies.
The present study is a multicenter, prospective, randomized controlled superiority trial designed to evaluate whether coronary imaging-physiology fusion-based virtual stenting technology for preprocedural physiological optimization improves clinical outcomes compared with conventional angiography-guided PCI.
Approximately 1,472 participants with coronary artery disease undergoing PCI will be randomized in a 1:1 ratio to either: Virtual stenting-guided PCI optimization; or Standard angiography-guided PCI.
The primary endpoint is 1-year major adverse cardiovascular events (MACE), defined as a composite of all-cause death, nonfatal myocardial infarction, and ischemia-driven repeat revascularization.
Secondary endpoints include immediate post-PCI physiological optimization, cardiovascular death or nonfatal myocardial infarction, repeat revascularization, quality of life assessed by Seattle Angina Questionnaire (SAQ) and EuroQol Five-Dimensional Questionnaire (EQ-5D), procedural safety, and health economic outcomes.
Participants will be followed at 30 days, 6 months, and 12 months after PCI. The study will also evaluate concordance between predicted post-PCI QFR derived from virtual stenting and actual postprocedural physiological measurements, as well as changes in operator treatment strategies after physiological optimization.
연구 유형
등록 (추정된)
단계
- 해당 없음
연락처 및 위치
연구 연락처
- 이름: Ying Song, MD
- 전화번호: +86-10-68314466
- 이메일: songying@fuwai.com
연구 장소
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Beijing Municipality
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Beijing, Beijing Municipality, 중국, 100037
- Fuwai Hospital, CAMS & PUMC
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연락하다:
- Ying Song, MD
- 전화번호: 8688396666
- 이메일: songying@fuwai.com
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참여기준
자격 기준
공부할 수 있는 나이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
설명
Inclusion Criteria:
- Age ≥18 years.
- Diagnosis of coronary artery disease requiring percutaneous coronary intervention (PCI) according to current clinical practice.
- Presence of at least one target coronary lesion considered suitable for PCI and evaluable by angiography-derived Quantitative Flow Ratio (QFR).
- Ability to undergo coronary angiography and PCI. Provision of written informed consent before study participation.
Exclusion Criteria:
- Contraindications to PCI or inability to undergo coronary intervention. Severe renal dysfunction or other conditions making angiographic procedures unsuitable.
- High bleeding risk judged by investigators.
- Inability to complete follow-up or comply with study procedures.
- Life expectancy less than 1 year due to non-cardiovascular comorbidities.
- Participation in another interventional clinical trial that may interfere with study outcomes.
- Coronary anatomy unsuitable for QFR-based virtual stenting analysis.
- Any condition judged by investigators to make study participation inappropriate.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 하나의
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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실험적: Virtual Stenting-Guided PCI Optimization
Participants randomized to the experimental group will undergo coronary imaging-physiology fusion-based virtual stenting analysis before PCI.
Predicted post-PCI physiological outcomes will be used to optimize interventional strategies, including lesion coverage, stent length, stent position, and procedural planning before stent implantation.
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Preprocedural physiological optimization of PCI using coronary imaging-physiology fusion-based virtual stenting technology based on angiography-derived Quantitative Flow Ratio (QFR) assessment to guide stent implantation strategy.
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활성 비교기: Angiography-Guided PCI
Participants randomized to the control group will undergo PCI according to standard angiographic guidance and operator judgment without virtual stenting-guided physiological optimization.
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Conventional percutaneous coronary intervention performed according to angiographic findings and routine clinical practice without use of virtual stenting-guided physiological optimization.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Major Adverse Cardiovascular Events (MACE)
기간: Within 1 year after PCI
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Composite of all-cause death, nonfatal myocardial infarction, and ischemia-driven repeat revascularization after index PCI.
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Within 1 year after PCI
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Post-PCI Physiological Optimization
기간: Immediately after PCI
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Successful physiological optimization defined as postprocedural TIMI grade 3 flow and post-PCI Quantitative Flow Ratio (QFR) ≥0.90 in the target vessel immediately after PCI.
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Immediately after PCI
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Cardiovascular Death or Nonfatal Myocardial Infarction
기간: Within 1 year after PCI
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Composite of cardiovascular death and nonfatal myocardial infarction after index PCI.
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Within 1 year after PCI
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Myocardial Infarction
기간: Within 1 year after PCI
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This includes perioperative myocardial infarction and non-fatal myocardial infarction (including target vessel and non-target vessel related myocardial infarction) (30 days, 6 months, and 1 year postoperatively).
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Within 1 year after PCI
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기타 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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All-Cause Mortality
기간: Within 1 year after PCI
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Death from any cause, including cardiovascular death, non-cardiovascular death, or death of undetermined cause.
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Within 1 year after PCI
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Ischemia-Driven Repeat Revascularization
기간: Within 1 year after PCI
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Repeat coronary revascularization (PCI or CABG) associated with ischemic symptoms, positive functional testing, angiographic stenosis ≥50% with ischemic evidence, or stenosis ≥70% regardless of symptoms.
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Within 1 year after PCI
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All revascularization
기간: Within 1 year after PCI
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Including target-vessel and non-target vessel, ischemia-driven and non-ischemia driven
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Within 1 year after PCI
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Definite or Probable Stent Thrombosis
기간: Within 1 year after PCI
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Definite or probable stent thrombosis according to ARC-2 definitions, including acute, subacute, late, and very late stent thrombosis.
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Within 1 year after PCI
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Major Bleeding Events
기간: Within 1 year after PCI
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Bleeding Academic Research Consortium (BARC) type 3 or type 5 bleeding.
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Within 1 year after PCI
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Health-Related Quality of Life - SAQ
기간: Baseline, 6 months, and 12 months after PCI
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Quality of life assessed using the Seattle Angina Questionnaire (SAQ)
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Baseline, 6 months, and 12 months after PCI
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Health-Related Quality of Life - EQ-5D
기간: Baseline, 6 months, and 12 months after PCI
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Quality of Life assessed by EuroQol Five-Dimensional Questionnaire (EQ-5D).
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Baseline, 6 months, and 12 months after PCI
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Quality-Adjusted Life Years (QALYs)
기간: Within 1 year after PCI
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Cost-utility evaluation using quality-adjusted life years estimated from EQ-5D utility scores using the Japanese time trade-off (TTO) conversion algorithm.
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Within 1 year after PCI
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Healthcare Costs
기간: Baseline, 1 month, 6 months, and 12 months after PCI
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Direct medical costs including index hospitalization costs, cardiovascular medication costs, outpatient costs, hospitalization costs, and MACE-related medical expenditures.
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Baseline, 1 month, 6 months, and 12 months after PCI
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공동 작업자 및 조사자
연구 기록 날짜
연구 주요 날짜
연구 시작 (추정된)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
키워드
기타 연구 ID 번호
- 2026-2-4036
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
IPD 계획 설명
IPD 공유 기간
IPD 공유 액세스 기준
IPD 공유 지원 정보 유형
- 연구_프로토콜
- 수액
- ICF
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미국 FDA 규제 기기 제품 연구
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