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Study breakdown

Radioactive Peptide Therapy Controls Rare Adrenal and Neural Tumors

CohortModerate evidence
The takeaway

Peptide receptor radionuclide therapy with 177Lu or 90Y peptides provided disease control in 30 patients with malignant pheochromocytomas and paragangliomas.

30 patients from 1,500+

From over 1,500 neuroendocrine tumor patients, 30 with rare malignant pheochromocytomas/paragangliomas benefited from targeted peptide radiation therapy

What the researchers found

Peptide receptor radionuclide therapy with 177Lu or 90Y peptides provided disease control in patients with malignant pheochromocytomas and paragangliomas.

Why it matters

These rare tumors have very limited treatment options, especially when they have spread. Any therapy showing disease control provides hope for patients with few alternatives.

The numbers in context

30 patients identified from over 1,500 neuroendocrine tumor patients treated from 1999 to 2017. Treatment used 177Lu- or 90Y-DOTA-TATE or -TOC peptides.

How the study worked

Single-center retrospective analysis of 30 patients with malignant PCCs/PGLs treated with PRRT between 1999 and 2017, selected from over 1,500 neuroendocrine tumor patients.

Who was studied

Patients with malignant pheochromocytomas and paragangliomas treated with PRRT from 1999-2017

What this study cannot tell us

Retrospective single-center study with only 30 patients. No control group for comparison. Patient selection may have influenced outcomes.

How to read the evidence

Rated moderate: 18-year single-center retrospective experience with 30 patients. Small numbers reflect the rarity of these tumors.

When this study was published

Published in 2024, covering 18 years of treatment experience (1999–2017). Provides the longest available follow-up for PRRT in this tumor type.

The bigger picture

Malignant pheochromocytomas and paragangliomas are rare tumors with very few effective treatments. Any therapy that controls disease progression provides meaningful benefit for patients with limited options.

Questions still open

  • Which patients are most likely to respond to PRRT?
  • Could combination with other therapies improve outcomes?

Common questions

What is peptide receptor radionuclide therapy?
A treatment where radioactive atoms are attached to peptides that seek out and bind to tumor cells, delivering targeted radiation directly to the cancer.
What are pheochromocytomas and paragangliomas?
Rare tumors arising from adrenal glands or nerve tissue that produce excess hormones. When malignant, they have very few treatment options.

Read the original research

Peptide receptor radionuclide therapy with 177Lu- or 90Y-SSTR peptides in malignant pheochromocytomas (PCCs) and paragangliomas (PGLs): results from a single institutional retrospective analysis.

Endocrine, 84(2), 704-710

Citation

Rubino, Manila; Di Stasio, Giuseppe Danilo; Bodei, Lisa; Papi, Stefano; Rocca, Paola Anna; Ferrari, Mahila Esmeralda; Fodor, Cristiana Iuliana; Bagnardi, Vincenzo; Frassoni, Samuele; Mei, Riccardo; Fazio, Nicola; Ceci, Francesco; Grana, Chiara Maria. (2024). Peptide receptor radionuclide therapy with 177Lu- or 90Y-SSTR peptides in malignant pheochromocytomas (PCCs) and paragangliomas (PGLs): results from a single institutional retrospective analysis.. Endocrine, 84(2), 704-710. https://doi.org/10.1007/s12020-024-03707-5