Abstract Library

#4535 Survival and toxicity outcomes of somatostatin analogues vs. other systemic therapies as first-line palliative treatment for patients with extrapulmonary G2 well-differentiated neuroendocrine tumours with a Ki-67 index between 10% and 20%

Introduction: In patients (pts) with an advanced well-differentiated (WD-NET) with a Ki-67>10% and ≤20% (“G2 high”), chemotherapy (ChT) or targeted therapies are the preferred first-line palliative options. Somatostatin analogues (SSAs) may offer an alternative, yet randomised evidence is lacking.

Conference:

Presenting Author:

Authors: Dawoodji A, Nuttall C, Eyong M, Farrell K, Barratt N,

Keywords: somatostatin analogue, SSA, non-SSA, Grade 2 well-differentiated neuroendocrine tumour, WD-NET,

#4499 Impact of early molecular tumour board inclusion on treatment outcomes in neuroendocrine neoplasms: A retrospective double-centre study

Introduction: The treatment of neuroendocrine neoplasms (NENs) is particularly challenging due to the limited availability of standard therapies. While personalised approaches are revolutionising many areas of oncology, their progress in the field of NENs has been comparatively slower. The integration of molecular tumour boards (MTBs) into clinical practice represents a major advance in oncology, even for rare entities such as NENs.

Conference:

Presenting Author: Klaas L

Authors: Barsch M, Graessel L, Metzger P, Klaas L, Schulz L,

Keywords: Neuroendocrine neoplasm, Molecular Tumour Board, personalised medicine, precision oncology, targeted therapy,

#4395 Mechanisms of drug resistance in neuroendocrine tumours: A basic research study

Introduction: Neuroendocrine tumours (NETs) often show resistance to chemotherapy and targeted therapies, leading to treatment failure. However, the molecular mechanisms underlying this resistance remain poorly understood.

Conference:

Presenting Author:

Authors: Xu L, Yu P, Chen J, Ye M, Xue B,

Keywords: Neuroendocrine tumour, drug resistance, mTOR, PI3K/AKT, tumour microenvironment, chemotherapy,

#4381 TOPK promotes tumorigenesis and metastasis of pancreatic neuroendocrine neoplasms by enhancing the MAPK signalling pathway

Introduction: T-LAK cell-originated protein kinase (TOPK) is highly expressed in pancreatic neuroendocrine neoplasms (pNENs) with liver metastasis and is associated with a poor prognosis.

Conference:

Presenting Author: Chen Q

Authors: Chen Q, Yuan M, Meng M, Ren S, Li G,

Keywords: TOPK, Pancreatic Neuroendocrine Neoplasm, MAPK signalling pathway, Invasion and metastasis, HI-TOPK-032,

#4282 A first-in-human phase I trial with antibody drug conjugate ADCT-701 in neuroendocrine tumours and carcinomas

Introduction: Neuroendocrine neoplasms (NENs) consist of neuroendocrine tumours and neuroendocrine carcinomas, which are rare malignancies found in various anatomical sites, including the gastrointestinal tract, pancreatic islets, lungs, and adrenal glands. Poorly differentiated NECs are classified as high-grade carcinomas that bear resemblance to small-cell lung cancer; however, these patients experience a high risk of relapse and demonstrate a limited response to additional systemic therapies. Adrenocortical carcinoma (ACC) is another rare cancer and currently, no targeted therapies have demonstrated significant effectiveness for this condition. Preclinical investigations have indicated that Delta-like non-canonical notch ligand 1 (DLK1) is expressed in various neuroendocrine neoplasms, including ACC, SCLC, neuroblastoma, pheochromocytoma, and paraganglioma.

Conference:

Presenting Author: Del Rivero J

Authors: Del Rivero J, Glod J, Magee T, Cooper K, Rivero A,

Keywords: NEN, NEC, NET, ACC, ADC, ADCT-701,