Abstract Library

#4291 Novel genomic score predicts survival with immune checkpoint blockade in neuroendocrine neoplasms

Introduction: Immune checkpoint inhibition (ICI) has activity in Grade 3 (G3) neuroendocrine neoplasms (NENs) but predictive biomarkers of overall survival (OS) are currently lacking.

Conference:

Presenting Author:

Authors: Brar T, Sukrithan V, Le D, Xu M, Olowookere C,

Keywords: Neuroendocrine Neoplasm, Immunotherapy, Ipilimumab, Nivolumab, Immune checkpoint inhibitor, biomarker, genomic score,

#4285 Predictive biomarkers for immunotherapy efficacy in neuroendocrine neoplasms

Introduction: The application of immunotherapy in NENs is still in its early stages. Identifying reliable predictive biomarkers of efficacy is critical for research, enabling better selection of patients who are more likely to respond to immunotherapy and improving treatment success rates.

Conference:

Presenting Author: Liang Y

Authors: Liang Y, Sun Z, Jia X, Chen J,

Keywords: immunotherapy, biomarker, neuroendocrine neoplasm,

#3726 Inflammation based index and tumor heterogeneity on pretherapeutic 68Ga DOTATOC PET/CT predict outcome in midgut neuroendocrine tumor patients treated with 177Lu-oxodotreotide

Introduction: Peptide receptor radionuclide therapy with 177Lu oxodotreotide (LuPRRT) is a standard treatment for the management of patients with inoperable metastatic well-differentiated neuroendocrine tumors of the midgut (iNET). As LuPRRT becomes widely used for a heterogeneous population of NET patients, practical predictive biomarkers are needed. Inflammation based index (IBI) derived from serum C reactive protein and albumin is associated with progression free survival (PFS) and overall survival (OS) in patients with PRRT for NETs. Ga-68 DOTATOC PET/CT (DOTAPET) assessment of lesion heterogeneity was predictive for response to PRRT.

Conference:

Presenting Author: Vija L

Authors: Vija L, Dierickx L, Kanoun S, Texier J, Terroir M,

Keywords: LuPRRT, GaDOTA PET/CT, neuroendocrine tumor, outcome,

#3534 Avelumab in unresectable/metastatic, progressive, grade 2-3 neuroendocrine neoplasms (NENs): Translational results from NET-001 and NET-002 trials

Introduction: The role of immunotherapy (IO) and predictive biomarkers in NENs patients remains unclear.

Conference:

Presenting Author: Rodriguez Freixinos V

Authors: Rodriguez-Freixinos V, Bruce J, Chan D, Nunez-Rodriguez J, Mackenzie D,

Keywords: neuroendocrine, cell, research, immunotherapy,

#3533 Identification of proangiogenic plasmatic biomarkers in patients with advanced grade 1/2 pancreatic (pan) and gastrointestinal (gi) neuroendocrine tumors (NETs) treated with Lenvatinib: A subanalysis from the TALENT phase II clinical trial

Introduction: TALENT phase II trial provided evidence of the efficacy of Lenvatinib in patients with panNETs and giNETs. However, no predictive biomarker has been associated to antiangiogenic treatment benefit to date.

Conference:

Presenting Author: Garcia-Alvarez A

Authors: Garcia Alvarez A, Hernando J, Jimenez-Valero G, Martinez A, Fazio N,

Keywords: Lenvatinib, Angiogenesis, Ang2, VEGFR2,