Abstract Library

#3080 Impact of Multimodal Perioperative Treatment in Patients with Resected Non-Metastatic Grade 3 Neuroendocrine Neoplasms (NEN G3)

Introduction: Patients with grade 3 neuroendocrine neoplasm (NEN G3) have a limited prognosis. Even in a non-metastatic stage, the risk of recurrence after surgery is high. Multimodal perioperative treatment, including chemotherapy and/or radiotherapy in an adjuvant or neoadjuvant setting, has improved the prognosis in numerous tumor entities; however, it has not been systematically evaluated in NEN G3 so far. Nevertheless, perioperative chemotherapy is generally recommended in most current treatment guidelines for NEN G3.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Apostolidis L, Starke H, Bhatti I, Jäger D, Winkler E,

Keywords: NEN G3, neuroendocrine carcinoma, adjuvant, neoadjuvant, surgery,

#2874 Role of FOXM1 in Aggressive Pancreatic / Pulmonary Neuroendocrine Carcinomas and Anti-Tumor Effect of the FOXM1 Inhibitor Thiostrepton

Introduction: DNA-targeting agents are the main treatment of aggressive pulmonary and pancreatic neuroendocrine carcinomas (NEC). FOXM1 is a transcription factor controlling cell proliferation and DNA repair pathways, playing therefore an important role in tumor progression and chemoresistance.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Cros J

Authors: De Rycke O, Raffenne J, Lacombe C, Hentic O, Gounant V,

Keywords: neuroendocrine carcinoma, FOXM1, DNA repair, anti-tumor drug,

#2865 Can the Efficacy of Etoposide-Platinum Chemotherapy Be Predicted by p53/pRb Status in Grade 3 Neuroendocrine Neoplasms (G3 NEN)?

Introduction: Etoposide-platinum (EP) chemotherapy has long stood as the reference treatment of grade 3 neuroendocrine neoplasms (G3 NEN). However, G3 NEN are heterogeneous, including well differentiated tumours (NET) and poorly differentiated carcinomas of large (LCNEC) or small (SCNEC) cell type, whose identification can be challenging and response to EP be very variable, usually low in NET.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Lacombe C, De Rycke O, Chen R, Colnot N, Hentic O,

Keywords: grade 3, chemotherapy, biomarkers, etoposide-platinum, pRb, p53,

#2699 Dacarbazine- or Temozolomide-Based Chemotherapy in Metastatic Digestive Neuroendocrine Carcinomas in Post First-line Chemotherapy: A Retrospective Multicentric Study of the French Group of Endocrine Tumours (GTE)

Introduction: First-line chemotherapy in metastatic neuroendocrine carcinomas (NEC) is based on etoposide and platinum. However, there is no standard for second line treatment.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Walter T

Authors: Couronne T, Fine C, Hadoux J, Lecomte T, Lorcet M,

Keywords: neuroendocrine, poorly differentiated neuroendocrine tumour, neuroendocrine carcinoma, chemotherapy, temozolomide, dacarbazine,

#2265 Activity of Bevacizumab in Neuroendocrine Neoplasms

Introduction: The combination of the anti-VEGF antibody bevacizumab (BEV) with a multitude of other antineoplastic substances has shown promising activity in neuroendocrine neoplasms (NEN). However, data proving the superiority of BEV-containing vs. BEV-free protocols are lacking.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Apostolidis L

Authors: Fejzibegovic N, Jäger D, Winkler E, Apostolidis L,

Keywords: neuroendocrine neoplasm, targeted therapy, bevacizumab, antiangiogenesis,