Immunotherapy as Second-line Treatment in Grade 3 Neuroendocrine Carcinomas: A Prospective Case Series from an ENETS Center of Excellence Abstract #2875

Introduction: Metastatic WHO grade 3 extra-pulmonary neuroendocrine carcinomas (EP-NEC) have a poor prognosis and optimal treatment after first-line platinum-etoposide chemotherapy remains unclear. A recent, small phase II study combining ipilimumab and nivolumab showed promising results
Aim(s): Evaluation of immunotherapy in NETwerk, an ENETS Center of Excellence, as new treatment option in EP-NEC
Materials and methods: Patient characteristics of all EP-NEC, discussed at the NET-specific MDT (NET MDT), were prospectively recorded between August 2018 and November 2019. Progression-free survival (PFS) of patients receiving immunotherapy was calculated
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Medical treatment - Targeted therapies
Presenting Author: Timon Vandamme
Keywords: NEC, immunotherapy

To read results and conclusion, please login ...

Further abstracts you may be interested in

#2793 A Phase II, Open-Label, Multicenter Trial of Avelumab in Patients with Advanced, Metastatic High Grade Neuroendocrine Carcinomas NEC G3 (WHO 2010) Progressive after First-line Chemotherapy (AVENEC)
Introduction: High grade Neuroendocrine Neoplasias (NEN) are rare tumors with a poor prognosis and no established second line therapy.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Medical treatment - others, not specified
Presenting Author: PD. Dr. Christian Fottner
#2964 Personalized Therapy in a Case of Esophageal NEC Based on Tumor Genome Sequencing
Introduction: High-grade esophageal neuroendocrine carcinomas (NEC) constitute a rare subgroup of neuroendocrine neoplasms, with a particularly aggressive behaviour and unfavourable prognosis. To date, there are no validated biomarkers for personalized therapy and cytotoxic chemotherapy remains the standard of care. However, tumor genome sequencing may help improve NEC molecular landscape knowledge in order to identify novel targets for an individualized approach.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Case reports
Presenting Author: MD Anna La Salvia
#2071 ElevatION:NET-201 A Phase II Study to Evaluate the Efficacy and Safety of PDR001 in Patients with Metastatic, Well-Differentiated NET of Pancreatic/GI/Thoracic Origin or Poorly-Differentiated GEP NEC Who Have Progressed on Prior Treatment
Introduction: Monoclonal antibody (mAb) inhibitors of immune checkpoints, including anti–PD-1 and anti–PD-L1, have become established treatment options in various solid tumors. However, there is a paucity of data on treatment effect of checkpoint inhibition in neuroendocrine tumors (NET) and neuroendocrine carcinoma (NEC). PDR001 is a high-affinity, humanized IgG4 mAb directed against PD-1 that blocks the binding of PD-L1 and PD-L2 to PD-1.
Conference: 15th Annual ENETS conference 2018 (2018)
Category: Medical treatment -Targeted therapies
Presenting Author: Anamika Gulati
Authors: Yao J C, Fazio N, Li D, Pavel M, ...
Keywords: PDR001, immunotherapy, NET
#1199 Tumor Infiltrating Lymphocytes and PD-L1 Expression Differ in Low and High Grade Neuroendocrine Tumors
Introduction: Although much progress has been made in the past 2-3 years in terms of understanding signaling pathways in gastroenteropancreatic neuroendocrine tumors (GEP-NENs), approved treatment options are still limited. Cancer Immunotherapy has been announced as the breakthrough of the year in 2013 and might become an integral part of the clinical management strategy for solid tumors including GEP-NENs. Therefore, to develop immunotherapeutic strategies against NENs we need to know which immune escape mechanisms are relevant in high and low grade NEC/NENs.
Conference: 12th Annual ENETS Conference 2015 (2015)
Category: Biomarkers
Presenting Author: PD Dr. Patricia Grabowski
#1845 Mismatch Repair (MMR) Protein Expression is Uncommon in Poorly Differentiated Neuroendocrine Carcinoma
Introduction: Microsatellite instability (MSI) has been reported to occur in a significant proportion of neuroendocrine carcinoma (NEC) and mixed adenoneuroendocrine carcinomas (MANEC) (11 out of 89 cases, Sahnane et al, ERC 2015). It might be predictive of response to immunotherapy.
Conference: 14th Annual ENETS conference 2017 (2017)
Category: Biomarkers
Presenting Author: Dr Julien Hadoux