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Used to image the extent and location of prostate cancer, It is the first and only FDA
approved product targeting prostate-specific membrane antigen (PSMA), a unique marker that
is abundantly expressed on prostate cancer cells at all stages of disease. Prior to
ProstaScint, there were no reliable, noninvasive tests to identify metastatic disease in
newly diagnosed and recurrent prostate cancer patients.
It is administered intravenously into the
patient. The antibody travels through the bloodstream and binds to specific antigens
expressed by the tumors. The radiation from the isotope that has been attached to the
antibody can be detected from outside the body by a gamma camera. The image of the
radiolabeled pharmaceutical identifies the site of suspected tumor location.
