Scientific Programme & Abstracts from the International Meeting in Pediatric Endocrinology (IMPE)

impe0096p101 | Growth and Syndromes | IMPE2023

A prospective genetic analysis of children with idiopathic short stature (ISS) using whole-exome sequencing (WES): first results

P Cellin Laurana , L M Andrade Nathalia , C Rezende Raissa , de Souza Vinícius , C B Dantas Naiara , P S Quedas Elisangela , F A Funari Mariana , A Vasques Gabriela , C Scalco Renata , A C Malaquias Alexsandra , A L Jorge Alexander

Introduction: Children classified as idiopathic short stature (ISS) may have a monogenic cause that can explain their growth disorder. In this context, genetic tests emerge as a new diagnostic tool. Objectives: To determine the usefulness of WES for the genetic investigation of children with ISS.Patients and Methods: We sequentially enrolled 95 children with ISS without previous genetic testing, except for karyotyping fo...

impe0096p98 | Growth and Syndromes | IMPE2023

Girls with short statute and Xp22;Yq11 translocation: should a prophylactic gonadectomy be recommended?

C.B. Dantas Naiara , F.A. Funari Mariana , L.M. Andrade Nathalia , C. Rezende Raíssa , P. Cellin Laurana , G. Crisostomo Lindiane , C. Scalco Renata , A.L. Jorge Alexander

Background: Translocations involving the X and Y chromosome are rare in humans. Here we describe two cases diagnosed during the investigation of short stature. Case 1: She was born at 38 gestational weeks (GW), with birth weight (BW) SDS -1.5 and birth length (BL) SDS -2.7. At the first assessment, she had a chronological age (CA) of 11.3ys, a height SDS of -2.2, a sitting height-to-height SDS of 4.6, and Madelung´s deformity. The height SDS of her mothe...

impe0096fc2.1 | Fetal and Neonatal Endocrinology | IMPE2023

Increased catecholamines link fetal stress or growth restriction and neonatal hyperinsulinemic hypoglycemia: a prospective cohort study

Hoermann Henrike , van Faassen Martijn , Roeper Marcia , Hagenbeck Carsten , Herebian Diran , C. Muller-Kobold Anneke , Dukart Juergen , P. Kema Ido , Mayatepek Ertan , Meissner Thomas , Kummer Sebastian

Background: Perinatal stress, fetal growth restriction (FGR) or being small for gestational age (SGA) poses a high risk for neonatal hypoglycemia. The exact pathomechanism is unknown. In an animal model, increased levels of catecholamines were found in FGR sheep, causing β-cell adaptation with suppressed intrauterine insulin secretion, subsequently resulting in a hyper-responsive insulin secretion once the adrenergic stimulus subsides, e.g. after birth. W...

impe0096fc1.2 | GH and IGFs 1 | IMPE2023

Dose-dependent Increase in GH AUC0-12h with LUM-201 in Idiopathic Pediatric GH Deficiency (iPGHD) from the Interim Analysis Data of the OraGrowtH212 Trial

Cassorla Fernando , Román Rossana , L Johnson Michael , Avila Alejandra , Iñiguez German , Baier Ingrid , Said Daniela , Bruchey Aleksandra , Smith Christopher , B Karpf David , C McKew John , O Thorner Michael

LUM-201 (ibutamoren), an agonist of the growth hormone (GH) Secretagogue Receptor 1a (GHSR1a), is an investigational oral GH secretagogue currently in three iPGHD Phase 2 trials. The LUM-201 predictive enrichment marker (PEM) may be used to identify patients previously diagnosed with iPGHD who are likely to respond to LUM-201. PEM positivity is defined as a baseline insulin-like growth factor-1 (IGF-1) level >30 ng/mL and a peak GH of ≥5 ng/mL in response to a single 0.8...

impe0096p83 | GH and IGFs | IMPE2023

Baseline Demographics of the OraGrowtH210 Trial Studying LUM-201 in Idiopathic Pediatric Growth Hormone Deficiency (iPGHD) Interim Analysis Data

Lunsford Alison , Wikiera Beata , Dauber Andrew , Pyrzak Beata , Bossowski Artur , Tansey Michael , Petriczko Elzbieta , Stawerska Renata , Bowden Sasigarn , Feldt Matthew , Everett Gottschalk Michael , Marin Monica , Nayak Sunil , Sunil Bhuvana , Moszczynska Elzbieta , Repaske David , Soyka Leslie , Fuqua John , Escobar Oscar , Bowlby Deborah , Y. Fechner Patricia , Wiltshire Esko , Harris Mark , Wintergest Kupper , R Lafferty Antony , S Miller Bradley , Simm Peter , Bruchey Aleksandra , Smith Christopher , B Karpf David , C McKew John , O Thorner Michael

LUM-201 (ibutamoren), an agonist of the growth hormone (GH) Secretagogue Receptor 1a (GHSR1a), is an investigational oral GH secretagogue currently in three iPGHD Phase 2 trials. A LUM-201 predictive enrichment marker (PEM) may be used to select previously diagnosed iPGHD patients likely to respond to LUM-201. PEM positivity is defined as baseline insulin-like growth factor-1 (IGF-1) level >30 ng/mL and a peak GH of ≥ 5 ng/mL in response to a single 0.8 mg/kg oral dose o...