Precision Oncology in Rare Endocrine and Neuroendocrine Neoplasms: Experiences and Challenges of the CCCMunichLMU

Klara Dorman1,2, Christoph J Auernhammer3,4, Christine Spitzweg3,4

  • 1Department of Medicine III and Comprehensive Cancer Center, LMU University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany.

Targeted Oncology
|June 30, 2025
PubMed
Abstract

Insights

Comprehensive genomic profiling identified actionable mutations in rare endocrine cancers. While one-third of patients received treatment recommendations, only a fraction were treated, highlighting an unmet need for targeted therapies.

Area of Science:

  • Oncology
  • Genomics
  • Molecular Pathology

Background:

  • Comprehensive genomic profiling (CGP) is increasingly accessible for rare cancers, yet data on its outcomes remain limited.
  • Rare endocrine and neuroendocrine neoplasms present unique challenges in diagnosis and treatment.

Purpose of the Study:

  • To investigate the molecular landscape of rare endocrine and neuroendocrine neoplasms.
  • To identify targeted treatment options through real-world data analysis.
  • To evaluate the utility of CGP in guiding treatment decisions for these rare cancers.

Main Methods:

  • Retrospective cohort study analyzing CGP results and clinical data.
  • Inclusion of patients with neuroendocrine tumors, neuroendocrine carcinomas, adrenocortical carcinomas, pheochromocytomas, and carcinoids.
  • Data collected from patients discussed in a Molecular Tumor Board (MTB) from May 2017 to April 2023.

Main Results:

  • CGP was successful in 99 of 104 patients with endocrine and neuroendocrine neoplasms.
  • TP53, RB1, and KRAS were the most frequently mutated genes.
  • Pathogenic alterations were most prevalent in neuroendocrine carcinomas (76.9%) and carcinoids (83.3%), and least in adrenocortical carcinoma (37.5%).
  • 35 patients received treatment recommendations, with 10 ultimately receiving targeted therapy.
  • Four of the ten treated patients showed improved progression-free survival.

Conclusions:

  • One-third of patients with rare endocrine/neuroendocrine neoplasms had actionable alterations identified by CGP.
  • A significant gap exists between treatment recommendations and actual treatment delivery (28.6% treated).
  • The study underscores a critical unmet medical need for effective targeted treatments in rare cancers.

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