Searchable abstracts of presentations at key conferences in endocrinology

ea0073aep7 | Adrenal and Cardiovascular Endocrinology | ECE2021

Unnecessary cosyntropin stimulation tests for nonclassic congenital adrenal hyperplasia (NCAH) – shall the cut-off value of 17-hydroxyprogesterone be revised?

Bartosz Domagala , Trofimiuk-Muldner Malgorzata , Krawczyk Anna , Joanna Topór-Kolkowska , Skalniak Anna , Przybylik-Mazurek Elwira , Pach Dorota , Hubalewska-Dydejczyk Alicja

Cosyntropin stimulation test is the gold diagnostic standard used to test for NCAH. Genetic testing is not currently considered to be the primary diagnostic tool for NCAH. Still, it may be helpful in establishing a diagnosis if other results are unequivocal or for genetic counselling purposes. The study aimed at verifying the currently accepted threshold of 17-hydroxyprogesterone (17OHP) level (3 2.0 ng/ml) at which a cosyntropin stimulation test should be performed...

ea0073aep509 | Pituitary and Neuroendocrinology | ECE2021

Self-administration of long-acting somatostatin analogues in NET patients forced by the COVID-19 pandemic – does it affect the clinical outcome?

Opalinska Marta , Anna Kurzynska , Staszczak Anna Sowa , Joanna Palen-Tytko , Zwinczewska Helena , Karolina Morawiec-Slawek , Hubalewska-Dydejczyk Alicja

BackgroundSomatostatin analogues (SSA) (octreotide and lanreotide) are recommended as a first line treatment of locally advanced or metastatic well-differentiated neuroendocrine tumors (NETs) with a good expression of somatostatin receptor (SSTR). Both of them are usually used in injection repeated every 4 weeks.The study objectiveWas to compare the way of SSA administration (injection performed by profession...

ea0094p58 | Metabolism, Obesity and Diabetes | SFEBES2023

EarLy Surveillance for Autoimmune type 1 diabetes (ELSA) – paediatric, general population screening in the UK

Marie Quinn Lauren , Dias Renuka , Rashid Rajeeb , Garstang Joanna , Shukla David , Margaret Greenfield Sheila , Richter Alex , Narendran Parth , Shu Huang Low Brandon

Background: Children with pre-symptomatic type 1 diabetes (T1D) can be identified through testing for circulating islet autoantibodies (AAb). Identifying children at risk reduces diabetic ketoacidosis at onset and allows participation in trials aiming for immunoprevention. The EarLy Surveillance for Autoimmune diabetes (ELSA) study is exploring feasibility and acceptability of UK paediatric general population screening.Methods:</...

ea0098c23 | Clinical – Nuclear Medicine/Interventional Radiology/Imaging | NANETS2023

Phase 1/2 study of Lu-177-DOTATATE in combination with olaparib in metastatic or inoperable GI neuroendocrine tumors - first results

Lin Frank I. , Del Rivero Jaydira , Carrasquillo Jorge , Shamis Inna , Zou Joy , Turkbey Baris , Klubo Joanna , Mena Esther , Lindenberg Liza , Chen Clara , Herscovitch Peter , Millo Corina , Pacak Karel

Background: GI neuroendocrine tumors express somatostatin (SSTR) receptors, and the radioloabeled SSTR analog Lu-177-DOTATATE is an FDA-approved systemic treatment for those with metastatic disease. Olaparib is a poly (ADP-ribose) polymerase inhibitor (PARPi) which inhibits cells from repairing damaged DNA, especially single-stranded DNA breaks caused by beta particle emissions from the radioactive decay of Lu-177. We report the first results of a phase 1/2 study evaluating th...

ea0098t3 | Trials In Progress | NANETS2023

Phase 1/2 trial of Pb-212-VMT-alpha-NET in GI neuroendocrine tumors and pheochromocytoma/paraganglioma previously treated with radioligand therapy

Lin Frank I. , Del Rivero Jaydira , Carrasquillo Jorge , Shamis Inna , Zou Joy , Turkbey Baris , Klubo Joanna , Mena Esther , Lindenberg Liza , Chen Clara , Herscovitch Peter , Millo Corina , Pacak Karel

Background: Metastatic GI Neuroendocrine Tumors (GI-NET) and pheochromocytoma/paraganglioma (PPGL) are are tumors which overexpresses somatostatin receptors (SSTR) and can be treated with targeted radioligand therapy (RLT) such as Lu-177-DOTATATE. However, despite demonstrated clinical efficacy at stabilizing tumor growth, durable response is very rare and almost all patients inevitably progresses at some time after treatment. Good systemic therapy options after beta-emiting R...

ea0099p311 | Endocrine-Related Cancer | ECE2024

The impact of primary tumor site on clinical manifestation and prognosis of ectopic Cushing’s syndrome (ECS). Do pulmonary neuroendocrine tumors stand out?

Gamrat Aleksandra , Minasyan Mari , Komisarz-Calik Maria Aleksandra , Rzepka Ewelina , Paleń-Tytko Joanna , Opalinska Marta , Hubalewska-Dydejczyk Alicja , Gilis-Januszewska Aleksandra

Introduction: Ectopic Cushing’s syndrome (ECS) is a rare disease with limited and error-prone published data on the epidemiology, clinical presentation and diagnosis of ECS.Objectives: This study aims to examine the clinical course of patients with ECS in relation to the primary tumor localization.Methods: Thirty-five consecutive ECS patients at a tertiary clinical center were analyzed. The clinical, biochemical (including CRH...

ea0090p440 | Pituitary and Neuroendocrinology | ECE2023

DUONEN multicenter study - personalized PRRT treatment with 177Lu- or 177Lu/90Y-DOTA-TATE in patients with neuroendocrine tumors based on individual dosimetry

Opalinska Marta , Kamiński Grzegorz , Dedecjus Marek , Kowalska Aldona , Kolodziej Maciej , Saracyn Marek , Garnuszek Piotr , Lenda-Tracz Wioletta , Borkowska Anna , Gąsior-Perczak Danuta , Budzyńska Anna , Kubik Agata , Kacperski Krzysztof , Szubstarska Patrycja , Chalewska Wioletta , Długosińska Joanna , Januszkiewicz-Caulier Joanna , Hubalewska-Dydejczyk Alicja , Mikolajczak Renata

Introduction: The good expression of somatostatin receptors in neuroendocrine tumor tissue enables effective treatment with peptide receptor radionuclide therapy (PRRT). To date, there is no clear consensus on the optimal PRRT arrangement due to the possibility of the use of different radiopharmaceutical regimens. In theory, the simultaneous use of two radionuclides (90Y and 177Lu) with different energy and radiation ranges should be more effective than monotherapy. The main o...

ea0099ep601 | Pituitary and Neuroendocrinology | ECE2024

Personalized dosimetry as a key for optimizing radioligand therapy (RLT) with 177Lu- or 177Lu/90Y-DOTA-TATE in patients with well-differentiated neuroendocrine tumors – an update on the initial results of the DUONEN multicenter study

Opalinska Marta , Kamiński Grzegorz , Dedecjus Marek , Kowalska Aldona , Kolodziej Maciej , Saracyn Marek , Garnuszek Piotr , Lenda-Tracz Wioletta , Gąsior-Perczak Danuta , Borkowska Anna , Januszkiewicz-Caulier Joanna , Długosińksa Joanna , Sowa Staszczak Anna , Budzyńska Anna , Kubik Agata , Kacperski Krzysztof , Chalewska Wioletta , Cegła Paulina , Hubalewska-Dydejczyk Alicja , Mikolajczak Renata

Aim/Introduction: Peptide Receptor Radionuclide Therapy (PRRT) is an effective treatment for disseminated neuroendocrine tumors (NETs) expressing somatostatin receptors. Despite many published studies, the consensus on the optimal PRRT treatment algorithm has not been reached yet. The main objective of the DUONEN multicenter, randomized, phase III study (EUDRACT No: 2020-006068-99) is the development of a dosimetry-based personalized PRRT algorithm. The second goal includes th...

ea0077oc3.1 | Metabolism, Obesity and Diabetes | SFEBES2021

The serotonin transporter SLC6A4 protects human brown adipose tissue from serotonin-mediated suppression of thermogenesis.

Choong Kwok T’ng , Suchacki Karla , Ramage Lynne , Kelman Alexandra , McNeill Ben , Rodney Stewart , Keegan Matthew , Gray Calum , Manning Jonathan , MacNaught Gillian , Fletcher Alison , Simpson Joanna , Carter Roderick , Morton Nicholas , Homer Natalie , van Beek Edwin , Wakelin Sonia , Stimson Roland

The recent discovery of brown adipose tissue (BAT) in adult humans, which generates heat to maintain body temperature in a cold environment, offers an exciting new strategy to treat obesity and metabolic disease, but our knowledge of human BAT activation is limited. To identify novel pathways regulating human BAT, we undertook RNA sequencing of human brown and white adipocytes. The gene SLC6A4 (encoding the serotonin transporter SERT) was one of the most highly differ...

ea0090ep125 | Calcium and Bone | ECE2023

Application of untargeted metabolomics in primary hyperparathyroidism

Wielogorska-Partyka Marta , Podgorska Beata , Mocarska Karolina , Godzień Joanna , Siemińska Julia , Ciborowski Michał , Kozłowska Gabriela , Szelachowska Małgorzata , Adamska Agnieszka , Popławska-Kita Anna , Dzieciol Janusz , Krętowski Adam , Siewko Katarzyna

Background: The excessive secretion of parathormone by parathyroid glands is a common disorder known as hyperparathyroidism. With a prevalence of 0.1-0.4 percent in the general population and 2-4 percent in post-menopausal women, primary hyperparathyroidism is the third most frequently reported endocrine disorder. According to estimates, the prevalence of primary hyperparathyroidism has escalated in recent years, probably due to the increasing rate of parathormone and calcium ...