Abstract Library

#3603 Genetic tumor and blood profiling in the randomised controlled phase III COMPOSE trial comparing 177Lu-edotreotide and best standard of care for well-differentiated aggressive grade 2/3 gastroenteropancreatic neuroendocrine tumors

Introduction: COMPOSE is a randomised, controlled, open-label, Phase III trial in patients with well-differentiated aggressive G2/G3 (Ki-67 index 15−55%), somatostatin receptor positive gastroenteropancreatic neuroendocrine tumors (GEP-NETs). 177Lu-edotreotide targeted radionuclide therapy (TRT) will be compared with best standard of care (CAPTEM, FOLFOX or everolimus). Therapeutic strategies for high grade GEP-NETs demonstrate variable outcomes and currently there is a lack of tools to predict TRT efficacy and disease progression. Genetic profiling analysis is proposed to address this need.

Conference:

Presenting Author:

Authors: Capdevila J, Halfdanarson T, Halperin D, Herrmann K, Kong G,

Keywords: gastroenteropancreatic neuroendocrine tumor, targeted radionuclide therapy, bioinformatics, gene expression,

#3470 Molecular Imaging Tumor Volume of Somatostatin Receptor (MITVSSR) on 68Ga-DOTATATE PET/CT, dosimetry and predictors of overall survival and response in unresectable neuroendocrine neoplasms treated with Peptide Receptor Radionuclide Therapy (PRRT)

Introduction: PRRT delivers targeted radionuclide therapy to Neuroendocrine Neoplasms (NENs) with high SSR expression.

Conference:

Presenting Author:

Authors: Alipour R, Jackson P, Callahan J, Bressel M, Hogg A,

Keywords: PRRT, dosimetry, survival, response,

#3443 Prospective phase II trial of prognostication by 68Ga-NOTA-AE105 uPAR PET in patients with neuroendocrine neoplasms: Implications for uPAR targeted therapy

Introduction: Non-invasive tools to improve prognostication are warranted in patients with neuroendocrine neoplasms (NEN). Expression of urokinase plasminogen activator receptor (uPAR) is present in many cancer types and associated with a poor outcome, but largely unknown in NEN. uPAR-targeted radionuclide therapy has proven effective in preclinical models and uPAR may be a potential target in NEN patients.

Conference:

Presenting Author: Carlsen E

Authors: Carlsen E, Loft M, Loft A, Berthelsen A, Langer S,

Keywords: urokinase plasminogen activator receptor (upar), neuroendocrine neoplasm, pet, prognosis, molecular imaging,

#2962 90Y- and/or 177Lu-DOTATOC Re-Challenge in Patients with Progressive Neuroendocrine Tumors

Introduction: Most patients treated with PRRT will eventually progress. Previous studies indicated that repeated PRRT is feasible and promising.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Aberle S

Authors: Aberle S, Benz M, Grokovski R, Christ E, Nicolas G,

Keywords: PRRT, Re-challenge, 90Y-DOTATOC, 177Lu-DOTATOC, neuroendocrine tumor,