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In the United States, 68GaGa-DOTA-TOC has been approved by the Food and Drug Administration (FDA) in 2019 as the first 68Ga-radiopharmaceutical for imaging of somatostatin receptor (SSTR) positive gastroenteropancreatic neuroendocrine tumors while employing positron emission tomography (PET). In Europe (Austria, Germany, France), 68GaGa-DOTA-TOC was already approved back in 2016. This radiopharmaceutical combines the radionuclide 68Ga with the somatostatin analogue DOTA-TOC for specific imaging of tumor cells expressing SSTRs. Such a targeting approach can also be used for therapy planning in the case of both localized as well as disseminated disease and potentially for the evaluation of treatment response.
Hennrich et al. (Tue,) studied this question.