Abstract Library

#3055 Dynamics of Changes in Chromogranin A Concentration as a Prognostic Factor Radiopeptide Therapy in Neuroendocrine Tumours

Introduction: Chromogranin A (CgA) is a non-specific marker of neuroendocrine tumors (NET) and its significantly increased level is an unfavorable prognostic factor while the decrease in CgA during biotherapy with somatostatin analogs (SSA) correlates with the increase in profession free survival (PFS).

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Sygula A, Jurecka-Lubieniecka B, Hasse-Lazar K, Michalik B, Ledwon A,

Keywords: CgA, PRRT, prognosis,

#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,

#2706 A New Possibility in SI-NET Surgery by Using a New β- Probe and 90Y-DOTATOC: A Pilot Study

Introduction: In neuroendocrine tumor (NET), complete surgery could better the prognosis of this disease: radioguided surgery (RGS) with beta-radioisotopes, as 90Y, is a novel approach focused on developing a new probe which, detecting electrons and operating with low background, provides a clearer delineation of the margins of lesions with low radiation exposition for surgeons.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Grana C

Authors: Grana C, Bertani E, Collamati F, Faccini R, Pisa E,

Keywords: Small intestine neuroendocrine tumors, liver metastases, β- probe, 90Y-DOTATOC,

#2291 Somatostatin Analogs and mTOR Inhibitors as Radioprotectors or Radiosensitizers in Neuroendocrine Tumor Cells

Introduction: Neuroendocrine tumors (NETs) express somatostatin receptors that are currently utilized for diagnostic and therapeutic approaches. For peptide receptor radionuclide therapy (PRRT), somatostatin analogs are coupled to radionuclides like 90Y or 177Lu, which after injection are bound and taken up specifically by NETs. One hypothesis potentially explaining the discrepancies between expected result and observed outcome of PRRT might be that somatostatin analogs induce a G1 arrest in NET cells, thereby rendering them radioresistant.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Grötzinger C

Authors: Grötzinger C, Exner S, Prasad V, Erdmann S, Wiedenmann B,

Keywords: PRRT,

#2290 PRRT in Hindgut and Cancer of Unknown Primary NEN

Introduction: There are limited data regarding PRRT in hindgut and CUP (cancer of unknown primary).

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Ćwikla J

Authors: Kolasińska-Ćwikła A, Lewczuk-Myślińska A, Cichocki A, Roszkowska-Purska K, Dobkowski P,

Keywords: NENs, PRRT, Hindgut, CUP,