Abstract Library

#2937 Brain Metastasis in Patients with Neuroendocrine Neoplasia of Gastroenteropancreatic Origin: A Single Centre Experience

Introduction: Brain metastasis (BrMet) in patients (pts) with neuroendocrine neoplasia (NEN) of gastroenteropancreatic (GEP) origin is extremely rare. Data on management and outcome are limited.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Saghebi J, Hicks R, Michael M, Kong G,

Keywords: neuroendocrine neoplasia, brain metastasis, gastroenteropancreatic, PRRT,

#2842 Transformation to High Grade 3 (G3) Neuroendocrine Neoplasia (NEN) – Molecular Imaging, Pathologic Features and Patient Outcomes

Introduction: Transformation of lower grade to Grade 3 (G3) NEN potentially impacts prognosis & treatment options.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Kong G, Callahan J, Prall O, Michael M, Hicks R,

Keywords: Transformation, G3 NEN, PET imaging, mutation, PRRT, prognosis,

#2820 Efficacy of Peptide Receptor Radionuclide Therapy for Esthesioneuroblastoma

Introduction: Esthesioneuroblastoma (ENB) is a rare malignancy with limited therapeutic options when unresectable or metastatic. The overexpression of cell-surface somatostatin receptors in ENB is a potential molecular target making it amenable to peptide receptor radionuclide therapy (PRRT). High-level evidence supporting PRRT has been published for unresectable gastroenteropancreatic neuroendocrine tumours; however, data is limited for PRRT efficacy for ENB.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Kamel Hasan O

Authors: Kamel Hasan O, Ravi Kumar A, Kong G, Grozinsky-Glasberg S, Hicks R,

Keywords: esthesioneuroblastoma, peptide receptor radionuclide therapy, lutetium-177 dotatate,

#1801 Peptide Receptor Radionuclide Therapy (PRRT) with a Somatostatin Receptor (SSTR) Antagonist in Patients with SSTR-Positive, Progressive Neuroendocrine Tumours (NETs): A Phase I/II Open-Label Trial to Evaluate the Safety and Preliminary Efficacy of 177Lu-O

Introduction: PRRT with radiolabelled SSTR agonists is highly effective and has become an integral part of NET treatment. Tumour uptake and tumour-to-tissue dose ratios may be higher with radiolabelled SSTR antagonists than agonists. DOTA-JR11 (OPS201) is a very promising next-generation SSTR2-selective antagonist.

Conference: 14th Annual ENETSConcerence (2017)

Presenting Author:

Authors: Nicolas G, Baum R, Herrmann K, Lassmann M, Hicks R,

Keywords: PRRT, 177Lu, OPS201,

#616 Assessment of DNA Double-Strand Breaks in Blood Lymphocytes after Whole-Body Radiation Exposure in Patients with Neuroendocrine Tumors Undergoing 177Lu-Octreotate Therapy

Introduction: Peptide receptor radionuclide therapy using somatostatin receptor-binding peptides, such as 177Lu-Octreotate (LuTate), has been clinically proven to be effective in treating patients with inoperable neuroendocrine tumors. Despite the rather high radiation exposure, only few side effects have been reported. However, blood cells are very sensitive to radiation. Therefore, it is important to determine how much radiation they received. Recently, the detection by immunofluorescence of the phosphorylation of the histone variant H2AX (γ‐H2AX) has been established as a reliable and sensitive technique to monitor DNA double-strand breaks (DSBs) in blood lymphocytes.

Conference: 10th Annual ENETSConcerence (2013)

Presenting Author: Denoyer D

Authors: Denoyer D, Martin O, Jackson P, Johnston V, Hicks R,

Keywords: 177Lu-Octreotate, γ‐H2AX, DNA damage,