PREventive Invasive Strategy for Obstructive Coronary Artery Disease With Vulnerable Plaque Evaluated by CoroNary Computed Tomography Angiography-2 (PREVENT-2)
A Comparison of Initial Invasive Strategy and Initial Conservative Strategy for the Treatment of Vulnerable Atherosclerotic Coronary Plaques Identified by Coronary CT Angiography
調査の概要
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前:Duk-woo Park Professor in Department of Cardiology, Asan Medical Center, MD, PhD
- 電話番号:82-2-3010-4812
- メール:dwpark@amc.seoul.kr
研究場所
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Seoul、韓国
- Asan Medical Center
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参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Patients aged ≥18 years
- Patients with suspected coronary artery disease (CAD) (e.g., chest pain syndrome or equivalent symptoms) who are evaluated with coronary computed tomography angiography (CCTA)
Coronary computed tomography angiography (CCTA) showing:
Plaque with at least moderate stenosis in one or more major epicardial coronary arteries; and
At least two high-risk plaque (HRP) feature at the site of stenotic lesions, defined as any of the following:
- Low-attenuation plaque (LAP) (<70 Hounsfield units)
- Positive remodeling (PR) (remodeling index >1.2)
- Napkin-ring sign (NRS)
- Spotty calcification (SC) (<3 mm in length)
- Willing and able to provide written informed consent
Exclusion Criteria:
- Acute coronary syndrome (ACS) requiring urgent or emergent invasive evaluation
- Hemodynamically unstable conditions
- Significant left main coronary artery disease (≥50% diameter stenosis)
- Coronary anatomy unsuitable for either percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG)
Left ventricular ejection fraction (LVEF) <35%
→ Left ventricular ejection fraction <35%
- New York Heart Association (NYHA) class III or IV heart failure at entry or hospitalization for exacerbation of chronic heart failure within the previous 6 months
- Prior coronary artery bypass grafting (CABG)
- Severe renal dysfunction (estimated glomerular filtration rate <30 mL/min/1.73 m²) or end-stage renal disease on dialysis
- Contraindication to undergoing coronary computed tomography angiography (CTA) (e.g., allergy to radiographic contrast that cannot be adequately premedicated, any prior anaphylaxis to radiographic contrast, or inability to cooperate with scan acquisition)
- Contraindications to or planned discontinuation of dual antiplatelet therapy within 1 year
- Life expectancy less than the duration of the trial due to non-cardiovascular comorbidity
- Planned cardiac or major noncardiac surgery within the study period
- Women who are breastfeeding, pregnant, or planning to become pregnant during the course of the study
- Inability to comply with the study protocol
- Active participation in another interventional clinical trial involving an unapproved investigational drug or device
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:防止
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的:Initial Invasive Strategy
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Invasive coronary angiography (CAG) within 30 days after randomization, with the intent to perform preventive percutaneous coronary intervention (PCI) in addition to optimal medical therapy (OMT). For further detailed assessment of vulnerable plaque lesions detected by coronary computed tomography angiography, the use of intracoronary imaging modalities (near-infrared spectroscopy, optical coherence tomography, or intravascular ultrasound) will be strongly recommended. |
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アクティブコンパレータ:Initial Conservative Strategy
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Optimal medical therapy (OMT) alone, with invasive coronary angiography (CAG) reserved only for failure of optimal medical therapy, defined as recurrent or worsening symptoms despite maximally tolerated medical therapy, or the occurrence of an acute coronary event.
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
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The event rate of Composite of death from cardiac causes, target-vessel myocardial infarction, unplanned urgent revascularization, or hospitalization for unstable or progressive angina at 3 years after randomization.
時間枠:3 years
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3 years
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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The event rate of Individual components of the primary composite outcome
時間枠:3 years
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death from cardiac causes, target-vessel myocardial infarction, unplanned urgent revascularization, or hospitalization for unstable or progressive angina at 3 years after randomization.
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3 years
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The event rate of Death (all-cause, cardiac, or non-cardiac causes)
時間枠:3 years
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3 years
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The event rate of Myocardial Infarction (any, periprocedural or spontaneous; target-vessel or non-target-vessel)
時間枠:3 years
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3 years
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The event rate of Revascularization (any, target-vessel, non-target-vessel)
時間枠:3 years
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3 years
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The event rate of Unplanned hospitalization for unstable or progressive angina
時間枠:3 years
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3 years
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The event rate of Hospitalization (any, cardiac or noncardiac causes)
時間枠:3 years
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3 years
|
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The event rate of Stent thrombosis (definite or probable)
時間枠:3 years
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3 years
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The event rate of stroke (any, ischemic, or hemorrhagic)
時間枠:3 years
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3 years
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The event rate of Bleeding events (Bleeding Academic Research Consortium (BARC) criteria)
時間枠:3 years
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3 years
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The event rate of Procedural complications requiring active intervention related to Percutaneous coronary intervention
時間枠:3 years
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3 years
|
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Patient-oriented composite outcome (POCO) (a composite of all-cause death, all myocardial infarction, or any repeat revascularization)
時間枠:3 years
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3 years
|
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Change in Angina-related quality of life (assessed by the Seattle Angina Questionnaire [SAQ])
時間枠:Baseline, 6 months, 1 year, 2 years, and 3 years
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Baseline, 6 months, 1 year, 2 years, and 3 years
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Economic evaluation of healthcare resource use, costs, and cost-effectiveness
時間枠:From baseline to 3 years; assessed at 1 month, 6 months, 1 year, 2 years, and 3 years
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Healthcare resource utilization (including hospitalizations, procedures, and outpatient visits) will be collected and used to estimate total healthcare costs.
Cost-effectiveness will be assessed using the incremental cost-effectiveness ratio (ICER), expressed as cost per quality-adjusted life year (QALY) gained.
These components will be analyzed within a unified economic evaluation framework.
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From baseline to 3 years; assessed at 1 month, 6 months, 1 year, 2 years, and 3 years
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協力者と研究者
スポンサー
捜査官
- 主任研究者:Duk-woo Park, MD, PhD、Asan Medical Center
- 主任研究者:Jung-min Ahn, MD, PhD、Asan Medical Center
- 主任研究者:Do-yoon Kang, MD, PhD、Asan Medical Center
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。
冠動脈疾患の臨床試験
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Initial Conservative Strategyの臨床試験
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