Immunotherapy for gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs): a 2021 update

Christo Kole1, Nikolaos Charalampakis2, Michail Vailas3

  • 1First Department of Surgery, Laikon General Hospital, National and Kapodistrian University of Athens, 115 27, Athens, Greece. christo.kole@gmail.com.

Insights

Immunotherapy shows promise for neuroendocrine neoplasms (NENs), particularly in gastroenteropancreatic types. This review examines clinical trials and genetic profiling

Area of Science:

  • Oncology
  • Gastroenterology
  • Immunology

Background:

  • Neuroendocrine neoplasms (NENs) are diverse cancers originating from the neuroendocrine system.
  • NENs are classified as well-differentiated neuroendocrine tumors (NETs) or poorly-differentiated neuroendocrine carcinomas (NECs).
  • Gastroenteropancreatic (GEP) NENs incidence has risen significantly, with advanced disease often diagnosed, leading to poor survival rates for NECs.

Purpose of the Study:

  • To review ongoing clinical trials evaluating immunotherapy efficacy in GEP-NENs.
  • To analyze the role of tumor genetic profiling in predicting immunotherapy response.
  • To explore novel treatment strategies for advanced GEP-NENs.

Main Methods:

  • Systematic review of current clinical trials on immunotherapy for GEP-NENs.
  • Analysis of published data on genetic profiling in NENs.
  • Evaluation of treatment outcomes and response predictors.

Main Results:

  • Immunotherapy has shown promising results in various cancers and is being investigated for GEP-NENs.
  • Genetic profiling may identify biomarkers predictive of immunotherapy response.
  • Advanced GEP-NETs and GEP-NECs have limited treatment options, highlighting the need for novel approaches.

Conclusions:

  • Immunotherapy represents a potential new treatment avenue for GEP-NENs.
  • Tumor genetic profiling is crucial for personalizing immunotherapy strategies.
  • Further research and clinical trials are needed to establish immunotherapy's role in GEP-NEN management.

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