Repeat PET/CT Imaging of Patients With Amyloid 124I-AT-01 to Measure Changes in Organ-specific Amyloid Load

124I-AT-01 (124I-p5+14, iodine-124I evuzamitide) is a a novel iodine-124 (124I) labeled 45 L-amino acid peptide suitable for PET/CT imaging that has been shown to bind systemic amyloid deposits of diverse types in all organs, including the heart. The peptide binds amyloid through multivalent electrostatic interactions with the amyloid fibril and ubiquitous heparan sulfate proteoglycans.