Early Ga-68 FAPI PET/MR After Acute Myocardial Infarction (REMODEL-FAPI)
Early Ga-68 FAPI PET/MR for Assessment of Left Ventricular Remodeling After Acute Myocardial Infarction: A Prospective Single-Center Observational Study
調査の概要
詳細な説明
Acute myocardial infarction (AMI) initiates a dynamic myocardial repair process characterized by inflammation, fibroblast activation, extracellular matrix remodeling, and scar formation. Although these processes are essential for infarct healing, excessive or dysregulated remodeling may result in adverse left ventricular (LV) remodeling, progressive deterioration of cardiac function, and subsequent heart failure. Early identification of patients at risk for adverse remodeling remains an important unmet clinical need.
Fibroblast activation protein (FAP) is transiently expressed by activated fibroblasts during tissue repair and fibrosis. Ga-68 FAPI PET enables noninvasive visualization of fibroblast activation in vivo and has recently emerged as a promising molecular imaging technique for assessing myocardial remodeling following AMI. However, the relationship between early myocardial FAPI uptake and subsequent structural and functional cardiac remodeling has not been fully established.
This prospective, single-center observational study aims to evaluate myocardial fibroblast activation using integrated Ga-68 FAPI PET/MR performed approximately 10 ± 2 days after acute myocardial infarction. Participants will subsequently undergo serial cardiac magnetic resonance (CMR) examinations at 3 and 6 months to assess left ventricular remodeling, ventricular function, infarct characteristics, and myocardial fibrosis.
The primary objective is to investigate the association between early myocardial FAPI uptake and subsequent left ventricular remodeling assessed by serial CMR. Secondary objectives include evaluating the relationship between quantitative FAPI PET parameters and changes in left ventricular function, infarct characteristics, myocardial fibrosis, and relevant clinical and laboratory parameters. This study seeks to evaluate the potential value of Ga-68 FAPI PET/MR as an early imaging biomarker of post-infarction myocardial remodeling.
研究の種類
入学 (推定)
連絡先と場所
研究連絡先
- 名前：Elgin Ozkan, Prof.Dr.
- 電話番号：+90 312 595 6445
- メール：ozkanelgin@yahoo.com
研究場所
-
-
-
Ankara、トルコ（Türkiye）、06590
- 募集
- Ankara University Faculty of Medicine, Department of Nuclear Medicine
-
コンタクト：
- Elgin Ozkan, Prof. Dr.
- メール：ozkanelgin@yahoo.com
-
-
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
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Age ≥18 years.
- Diagnosis of acute myocardial infarction according to current guideline criteria.
- Successful coronary revascularization when clinically indicated.
- Ability to undergo FAPI PET/MR.
- Written informed consent.
Exclusion Criteria:
- Contraindications to MRI (e.g., non-MR-compatible implanted devices, severe claustrophobia).
- Pregnancy or breastfeeding.
- Severe renal impairment precluding gadolinium administration (if contrast-enhanced MR is performed).
- Inability to provide informed consent.
- Any condition considered by the investigator to interfere with study participation.
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
コホートと介入
グループ/コホート |
介入・治療 |
|---|---|
|
Acute Myocardial Infarction Patients
Patients with acute myocardial infarction who underwent FAPI PET/MR as part of the study protocol.
Imaging findings will be analyzed in relation to infarct-related clinical, laboratory, and cardiac imaging parameters.
|
Hybrid 68Ga-FAPI PET/MR performed to evaluate myocardial fibroblast activation following acute myocardial infarction.
PET and MR imaging findings will be analyzed in relation to infarct characteristics, myocardial function, and clinical outcomes.
|
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 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Left Ventricular Remodeling Assessed by Cardiac Magnetic Resonance Imaging
時間枠：6 months
|
Association between early myocardial Ga-68 FAPI uptake and left ventricular remodeling assessed by serial cardiac magnetic resonance imaging using changes in left ventricular volumes and systolic function.
|
6 months
|
協力者と研究者
スポンサー
研究記録日
主要日程の研究
研究開始 (実際)
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
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- AU-İ01-48-26-FAPI-AMI
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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。