= = = = = = = = = = = = About 124I-PGN650: 124I-PGN650 is a first-in-class phosphatidylserine (PS)-targeting F(ab')(2) fully human monoclonal antibody fragment joined to the PET imaging radio-isotope iodine-124 (124I) that represents a new approach to imaging cancer. PS is a molecule usually located inside the membrane of healthy cells, but "flips" and becomes exposed on the outside of cells that line tumor blood vessels, creating a specific target for the imaging of multiple solid tumor types. In preclinical studies, 124I-PGN650 accumulates in tumor vasculature and provides exceedingly clear in vivo tumor images. 4-3-12: "…with the recent filing of an Investigational New Drug application with the U.S. FDA. [for a 12-pt. 124I-PGN650 Imaging Trial]" http://ir.peregrineinc.com/releasedetail.cfm?ReleaseID=661456