Abstract Library

#4662 A novel hormone based anti-SSTR anti-CD3 T-cell engager for the treatment of neuroendocrine tumours

Introduction: Somatostatin receptor 2 (SSTR2) is overexpressed in well-differentiated NETs.

Conference:

Presenting Author: Pelle E

Authors: Pelle E, Cives M, Chaoul N, d'Angelo G, Medina E,

Keywords: T-cell engager, immunotherapy, tumouroids,

#4574 Long-acting somatostatin analogue injections for treating gastroenteropancreatic neuroendocrine tumours (GEP-NETs) and acromegaly: BackSOM – A patient preference study

Introduction: Long-acting somatostatin analogues, lanreotide and octreotide, are indicated for first-line treatment of GEP-NETs and acromegaly. Lanreotide was approved in 2007 in Europe, and is supplied as a prefilled, ready-to-use syringe (LAN-PF). In 2021, a generic form of lanreotide was released and supplied in a syringe requiring assembly (LAN-RA). To ensure patient compliance with treatment, it is important to understand their injection experiences.

Conference:

Presenting Author: Hernando Cubero J

Authors: Rodien-Louw C, Simo-Servat A, Dubois M, Sheppard J, McDonnell M,

Keywords: gastroenteropancreatic neuroendocrine tumour, GEP-NET, acromegaly, lanreotide, LA-SSA, somatostatin, patient preference,

#4533 Receptor radionuclide therapy with 177Lu-DOTATOC (177Luedotreotide or 177Lu-octreotide) in SSTR positive patients: A multicentre, prospective, phase II trial

Introduction: For advanced G1-G2 GEP-NET patients, peptide receptor radionuclide therapy (PRRT) with 177Lu-DOTATATE can be recommended. However, there are several SSTR-positive tumours for which PRRT has previously shown efficacy that are not currently covered by the indications for 177Lu-DOTATATE in Italy and, therefore, cannot benefit from it. Less used and studied is the 177Lu-DOTATOC. This is a radiopeptide with excellent safety and efficacy profile in PRRT and certainly not lower than 177Lu-DOTATATE.

Conference:

Presenting Author: Sansovini M

Authors: Sansovini M, Nicolini S, Grassi I, Marini I, Matteucci F,

Keywords: Lu-dotatoc, Radiopharaceutical Therapy Factory, SSTR positive tumour,

#4506 Matching adjusted indirect comparison (MAIC) of [177Lu]Lu-DOTA-TATE (177Lu-DOTATATE) vs. streptozocin-based chemotherapies (STZ-BC) as first-line (1L) treatment for advanced grade 2/3 (G2/G3) pancreatic NETs (pNETs)

Introduction: The NETTER-2 trial showed improved progression-free survival (PFS) with 1L 177Lu-DOTATATE vs. high dose octreotide in advanced G2/G3 pNETs. No published evidence exists comparing 177Lu-DOTATATE with other recommended 1L treatments, such as STZ-BC, hence indirect comparisons need to be conducted.

Conference:

Presenting Author: Navalkissoor S

Authors: Navalkissoor S, Capdevila J, Deshayes E, Gerard L, Srirajaskanthan R,

Keywords: pancreatic neuroendocrine tumour, [177lu]lu-dotatate, streptozocin, 5-fluorouracil, matching adjusted indirect comparison,

#4504 Matching adjusted indirect comparison (MAIC) of [177Lu]Lu-DOTA-TATE (177Lu-DOTATATE) vs. CAPTEM as first-line (1L) treatment for advanced grade 3 (G3) gastroenteropancreatic neuroendocrine tumours (GEP-NETs)

Introduction: The NETTER-2 trial showed a significant progression-free survival (PFS) benefit with 1L 177Lu-DOTATATE vs. high dose octreotide for patients with advanced G2/G3 GEP-NETs. No published evidence exists comparing 177Lu-DOTATATE with other recommended 1L treatments for patients with G3 GEP-NETs, such as capecitabine + temozolomide (CAPTEM), hence indirect comparisons need to be conducted.

Conference:

Presenting Author: Deshayes E

Authors: Deshayes E, Capdevila J, Gerard L, Navalkissoor S, Srirajaskanthan R,

Keywords: gastroenteropancreatic neuroendocrine tumour, [177lu]lu-dotatate, capecitabine, temozolomide, matching adjusted indirect comparison,