Abstract Library

#4540 Retrospective analysis of somatostatin receptors expression in cohort of thoracic neuroendocrine neoplasms with immunohistochemistry method or PET/CT Ga68 DOTA-TATE

Introduction: Somatostatin receptors (SSTRs) expression in cohort of thoracic neuroendocrine neoplasms (NENs) is still not fully described. We attempted to evaluate the SSTR expression by IHC and PET/CT with Ga68 DOTA-TATE, as well as the sensitivity of both methods.

Conference:

Presenting Author: Evdokimova E

Authors: Evdokimova E, Vorobeva M, Zhulikov Y, Markovich A, Gorbunova V,

Keywords: NEN, thoracic, SSTR, IHC, DOTATATE, lung, thymus, mediastinum, LCNC, NET,

#4537 The usefulness of circulating fibrosis markers in detection of carcinoid heart disease

Introduction: Carcinoid heart disease (CHD) is a potential serious fibrotic complication in patients with neuroendocrine neoplasms (NENs), affecting the heart valves. Early detection is crucial to avoid severe manifestations. NT-proBNP is suggested as an initial screening tool in detection of CHD; however, the value of NT-proBNP as a screening tool is questionable.

Conference:

Presenting Author: Lau T

Authors: Lau T, Angeli E, Oksjoki R, Rasmussen V, Genovese F,

Keywords: carcinoid heart disease, biomarker, fibrosis marker,

#4389 The LOLA trial: Phase II trial with combination of cabozantinib plus lanreotide in gastroenteropancreatic (GEP) and thoracic neuroendocrine tumours (NETs) – Interim results of step 1

Introduction: LOLA is an Italian, multicentre, open-label, double cohort, non-randomised, 3-stage, phase 2 trial aiming to assess the safety and activity of the combination of cabozantinib (CABO) + lanreotide (LAN) in patients (pts) with advanced or metastatic GEP and unknown primary NETs with Ki-67 > 10% or thoracic NET. In NETs sunitinib is the only TKI approved in advanced pancreatic NETs. While CABO has been reported superior to sunitinib in renal cancer its role in NETs is still investigational.

Conference:

Presenting Author: Oldani S

Authors: Oldani S, Morano F, Brizzi M, Giuffrida D, Panzuto F,

Keywords: gastroenteropancreatic neuroendocrine tumour, cabozantinib, lanreotide, clinical trial,

#4305 Lower dose of lenvatinib is similarly effective as higher dose for patients (pts) with advanced neuroendocrine tumours (NETs): A multinational retrospective cohort

Introduction: A phase II trial with lenvatinib 24mg PO daily was effective for pts with gastroenteropancreatic (GEP) NETs but led to significant toxicity. In clinical practice, dose reductions are commonly required.

Conference:

Presenting Author: Riechelmann R

Authors: Zanetta G, Grozinsky-Glasberg S, Bel-Ange A, Barros M, Felismino T,

Keywords: lenvatinib, neuroendocrine tumour, dose optimisation, toxicity,

#4224 Uncommon manifestations in type 4 familial paraganglioma syndrome – A large cohort of patients harbouring the SDHB p.Q214Ter variant

Introduction: Familial paraganglioma type 4 syndrome (PPGL4) is caused by a germline pathogenic variant (PV) in the SDHB gene. Patients harbouring germline SDHB PV have a higher risk of developing paragangliomas and pheochromocytomas. PPGL4 is considered a higher-risk syndrome for aggressive, and metastatic, abdominal-thoracic paragangliomas compared with other familial paraganglioma syndromes.

Conference:

Presenting Author: Halperin R

Authors: Halperin R, Jabarin A, Tirosh A,

Keywords: paraganglioma, pheochromocytoma, sdhb, hereditary,