Practical Guidance on Peptide Receptor Radionuclide Therapy

Joint guidance on peptide receptor radionuclide therapy in neuroendocrine tumors.

A practical guidance document on peptide receptor radionuclide therapy (PRRNT) in neuroendocrine tumors is being published this month in the European Journal of Nuclear Medicine and Molecular Imaging (1). This document is the result of close collaboration among experts in the field of PRRNT from the International Atomic Energy Agency; the Radionuclide Therapy, Oncology, Dosimetry, and Radiophar...

Peptide receptor radionuclide therapy.

On their plasma membranes, cells express receptor proteins with high affinity for regulatory peptides, such as somatostatin. Changes in the density of these receptors during disease, for example, overexpression in many tumors, provide the basis for new imaging methods. The first peptide analogues successfully applied for visualization of receptor-positive tumors were radiolabeled somatostatin a...

Addendum to the editorial "Joint guidance on peptide receptor radionuclide therapy in neuroendocrine tumors".

Practical dosimetry of peptide receptor radionuclide therapy with (90)Y-labeled somatostatin analogs.

The challenge for internal therapy is to deliver the highest possible dose to the tumor while sparing normal organs from damage. Currently, the potential risk of kidney and red marrow toxicity limits the amount of radioactivity that may be administered. An accurate dosimetry method that would provide reliable dose estimates to these critical organs and to tumors before therapy would allow the c...

Peptide receptor radionuclide therapy for advanced neuroendocrine tumors.

Peptide receptor radionuclide therapy (PRRT) consists of the systemic administration of a synthetic peptide, labeled with a suitable β-emitting radionuclide, able to irradiate tumors and their metastases via internalization through a specific receptor (usually somatostatin S2), over-expressed on the cell membrane. After almost 2 decades of experience, PRRT, with either (90)Y-octreotide or (177)...