Neuroendocrine Tumors Clinical Trial
Official title:
A Prospective Study to Evaluate the Impact of Different Peptides and Chelators on the Diagnostic Performance of PET/CT Using Gallium-68 Labeled Somatostatin Receptor Antagonists
Somatostatin receptor antagonists are emerging agents in molecular imaging of neuroendocrine tumors. There're two main antagonist peptides, namely JR11 and LM3, which can be coupled with different chelators, DOTA and NODAGA. Previous studies by our and other groups have revealed the different diagnostic performances of these tracers. However, head-to-head comparison data is still missing. In this study, we aim to evaluate the diagnostic performance of four different antagonists, that is, NODAGA-LM3, DOTA-LM3, and NODAGA-JR11, all labeled with gallium-68.
Patients will be randomly assigned into two arms: Arm A : 68Ga-NODAGA-LM3 and 68Ga-DOTA-LM3 Arm B : 68Ga-NODAGA-LM3 and 68Ga-NODAGA-JR11 In each arm, patients will undergo PET/CT using assigned tracers. Lesion detection, lesion SUV, and the tumor-to-background ratio will be compared. ;
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