PROFILE-MI - The FAPI Fibrosis Study

Status Completed

Clinical Trial Summary

The investigators here propose to investigate the timing and pattern of myocardial fibrosis activity following acute myocardial infarction using hybrid 68Ga-FAPI positron emission tomography and cardiovascular magnetic resonance. The investigators hypothesise that peak fibrosis activity will occur within 2-4 weeks of acute myocardial infarction and will predict subsequent scar formation and cardiac remodelling. Simultaneously, matrix remodelling and fibrosis activity in aortic and coronary atheroma will be assessed enabling the exploration of the presence of unstable atheroma.

Clinical Trial Description

Fibrosis is a fundamental process underlying almost all cardiomyopathic conditions. Established fibrosis can be detected by existing imaging techniques including cardiovascular magnetic resonance. However, these techniques are not specific for fibrosis and do not directly measure fibrosis activity or matrix remodelling. This limits the ability to detect early disease and differentiate active from end-stage phenotypes. Fibroblast activation protein is a key factor in fibrogenesis that is expressed in the myocardium following myocardial infarction and in thin-capped fibroatheroma. Radiolabelled fibroblast activation protein inhibitor (68Ga-FAPI) measures in vivo fibrosis activity and matrix remodelling, as supported by preliminary pilot studies. The timing and pattern of myocardial fibrosis activity following acute myocardial infarction will be investigated using hybrid 68Ga-FAPI positron emission tomography. The investigators hypothesise that peak fibrosis activity will occur within 2-4 weeks of acute myocardial infarction and will predict subsequent scar formation and cardiac remodelling. Simultaneously, matrix remodelling and fibrosis activity in aortic and coronary atheroma will also be assessed allowing exploration of the presence of unstable atheroma. This project will enhance understanding of fibrosis activity and matrix remodelling in myocardial infarction and unstable atherosclerotic plaque with potential future application to a broad range of cardiovascular diseases. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05356923
Study type	Observational
Source	University of Edinburgh
Contact
Status	Completed
Phase
Start date	April 21, 2021
Completion date	December 31, 2023

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.