Proposed MIBG Scan-Based Tumor Response Criteria of High-Specific-Activity 131 I-MIBG Therapy in Metastatic Pheochromocytoma/Paraganglioma.

Lu, Yang; Xu, Guofan; Jimenez, Camilo · Clin Nucl Med · 2023

Level V

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Abstract

High-specific-activity 131 I-MIBG (Azedra) is the only Food and Drug Administration-approved therapy for metastatic pheochromocytomas and paragangliomas, which are rare neuroendocrine tumors with limited treatment options. Based on our experience, we proposed here functional imaging-based tumor response criteria for these patient cohorts. Each response category was illustrated with typical sample cases, and clinical correlation was provided.

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