Dosimetry for treatment with radiolabelled somatostatin analogues. A review

M. Cremonesi, F. Botta, A. Di Dia, M. Ferrari, L. Bodei, C. De Cicco, A. Rossi, M. Bartolomei, R. Mei, S. Severi, M. Salvatori, G. Pedroli, G. Paganelli

Research output: Contribution to journalArticle

Abstract

Peptide Receptor Radionuclide Therapy (PRRT) has proven its efficacy in the treatment of neuroendocrine and other somatostatin receptor expressing tumours (SR-tumours). Several clinical trials have confirmed that adverse effects are represented by possible renal impairment, which is the major concern, and low but not absent hematological toxicity. High kidney irradiation is a constant, despite the sparing of dose obtained by renal protectors. Hematological toxicity, although low, needs to be monitored. The clinical and dosimetry results collected in more than a decade have recognized weak points to unravel, increased knowledge, offering new views. When planning therapy with radiopeptides, the large patients' variability as for biodistribution and tumour uptake must be taken into account in order to tailor the therapy, or at least to avoid foreseeable gross treatments. Reliable and personalized dosimetry is more and more requested. This paper reviews through the literature the methods to study the biokinetics, the dosimetry outcomes, some clue information and correlations obtained once applying the radiobiological models. Special focus is given on recent improvements and indications for critical organ protection that light up challenging perspectives for PRRT.

Original languageEnglish
Pages (from-to)37-51
Number of pages15
JournalQuarterly Journal of Nuclear Medicine and Molecular Imaging
Volume54
Issue number1
Publication statusPublished - Feb 2010

Keywords

  • Drug toxicity
  • Neuroendocrine tumors
  • Radioisotopes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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