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
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
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.
Studietype
Registrering (Antatt)
Kontakter og plasseringer
Studiekontakt
- Navn: Elgin Ozkan, Prof.Dr.
- Telefonnummer: +90 312 595 6445
- E-post: ozkanelgin@yahoo.com
Studiesteder
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Ankara, Tyrkia (Türkiye), 06590
- Rekruttering
- Ankara University Faculty of Medicine, Department of Nuclear Medicine
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Ta kontakt med:
- Elgin Ozkan, Prof. Dr.
- E-post: ozkanelgin@yahoo.com
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
- Eldre voksen
Tar imot friske frivillige
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
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.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
Intervensjon / Behandling |
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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.
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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.
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Left Ventricular Remodeling Assessed by Cardiac Magnetic Resonance Imaging
Tidsramme: 6 months
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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.
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6 months
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Samarbeidspartnere og etterforskere
Sponsor
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Antatt)
Studiet fullført (Antatt)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- AU-İ01-48-26-FAPI-AMI
Plan for individuelle deltakerdata (IPD)
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IPD-planbeskrivelse
Legemiddel- og utstyrsinformasjon, studiedokumenter
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