Alpha-emitter Peptide Receptor Radionuclide Therapy in Neuroendocrine Tumors

PET Clin. 2024 Jul;19(3):341-349. doi: 10.1016/j.cpet.2024.03.005. Epub 2024 Apr 23.

Abstract

Peptide receptor radionuclide therapy (PRRT) has become mainstream therapy of metastatic neuroendocrine tumors not controlled by somatostatin analog therapy. Currently, beta particle-emitting radiopharmaceuticals are the mainstay of PRRT. Alpha particle-emitting radiopharmaceuticals have a theoretic advantage over beta emitters in terms of improved therapeutic efficacy due to higher cancer cell death and lower nontarget tissue radiation-induced adverse events due to shorter path length of alpha particles. We discuss the available evidence for and the role of alpha particle PRRT.

Keywords: Alpha particles; Beta particles; Neuroendocrine tumors; Peptide receptor radiopharmaceutical therapy (PRRT); Somatostatin receptors.

Publication types

  • Review

MeSH terms

  • Alpha Particles* / therapeutic use
  • Humans
  • Neuroendocrine Tumors* / diagnostic imaging
  • Neuroendocrine Tumors* / radiotherapy
  • Octreotide / analogs & derivatives
  • Octreotide / therapeutic use
  • Radioisotopes / therapeutic use
  • Radiopharmaceuticals* / therapeutic use
  • Receptors, Peptide*

Substances

  • Radiopharmaceuticals
  • Receptors, Peptide
  • Octreotide
  • Radioisotopes