The purpose of this clinical trial is to determine if peptide receptor radiotherapy (PRRT) using 177Lu-DOTA-OCTREOTATE given intravenously in children and adolescents is an effective treatment and to describe its toxicities.~This study will consists of children and adolescents ages 1-20 years with relapsed or refractory neuroendocrine tumors and pheochromocytoma or paraganglioma.
This is a Phase I/II peptide receptor radiotherapy (PRRT) trial of 177Lu-DOTA-OCTREOTATE in children and adolescents with neuroendocrine tumors and pheochromocytoma or paraganglioma.