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Clinical outcomes, Kadish-INSICA staging and therapeutic targeting of somatostatin receptor 2 in olfactory neuroblastoma
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- Last modified
- 08/18/2025
- Type of Material
- Authors
- Language
- English
- Date
- 2022-02-01
- Publisher
- ELSEVIER SCI LTD
- Publication Version
- Copyright Statement
- © 2021 Elsevier Ltd. All rights reserved.
- License
- Final Published Version (URL)
- Title of Journal or Parent Work
- Volume
- 162
- Start Page
- 221
- End Page
- 236
- Grant/Funding Information
- This work was supported by the Rhinology and Laryngology Research Fund, Royal College of Surgeons (Lionel Colledge Family Research Grant) and the UCL/UCLH Biomedical Research Centre (BRC). Additional support was provided by the Intramural Research Program of the National Institutes of Health/National Institute on Deafness and Other Communication Disorders.
- Supplemental Material (URL)
- Abstract
- Introduction: Olfactory neuroblastoma (ONB) is a rare cancer of the sinonasal region. We provide a comprehensive analysis of this malignancy with molecular and clinical trial data on a subset of our cohort to report on the potential efficacy of somatostatin receptor 2 (SSTR2)-targeting imaging and therapy. Methods: We conducted a retrospective analysis of 404 primary, locally recurrent, and metastatic olfactory neuroblastoma (ONB) patients from 12 institutions in the United States of America, United Kingdom and Europe. Clinicopathological characteristics and treatment approach were evaluated. SSTR2 expression, SSTR2-targeted imaging and the efficacy of peptide receptor radionuclide therapy [PRRT](177Lu-DOTATATE) were reported in a subset of our cohort (LUTHREE trial; NCT03454763). Results: Dural infiltration at presentation was a significant predictor of overall survival (OS) and disease-free survival (DFS) in primary cases (n = 278). Kadish-Morita staging and Dulguerov T-stage both had limitations regarding their prognostic value. Multivariable survival analysis demonstrated improved outcomes with lower stage and receipt of adjuvant radiotherapy. Prophylactic neck irradiation significantly reduces the rate of nodal recurrence. 82.4% of the cohort were positive for SSTR2; treatment of three metastatic cases with SSTR2-targeted peptide-radionuclide receptor therapy (PRRT) in the LUTHREE trial was well-tolerated and resulted in stable disease (SD). Conclusions: This study presents pertinent clinical data from the largest dataset, to date, on ONB. We identify key prognostic markers and integrate these into an updated staging system, highlight the importance of adjuvant radiotherapy across all disease stages, the utility of prophylactic neck irradiation and the potential efficacy of targeting SSTR2 to manage disease.
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