ESPE Abstracts

Introduction: Fractures have been recorded in up to one third of children who have suffered from physical abuse. The British Paediatric and Adolescent Bone Group (BPABG) position statement on vitamin D states that the level of 25 hydroxyvitamin D is not relevant to causation of fractures unless there is radiological or biochemical evidence of rickets. Clinicians are often asked in the court setting about the relevance of abnormal serum investigations in children who have fract...

Background: The predictive value of a random cortisol measurement in the neonatal population with suspected adrenal insufficiency is unknown.Objective and hypotheses: i) determine the indications for measuring cortisol; ii) review subsequent management; and iii) establish predictors for adrenal insufficiency.Method: A laboratory database search identified cortisol results in babies <1 year from three neonatal units between Sept...

Background: There are limited data in paediatric population on the association between vitamin D deficiency/treatment and glucose/insulin metabolism.Objective and hypotheses: This study aimed to investigate the effect of vitamin D therapy on glucose homeostasis, insulin resistance and bone turnover, in children with vitamin D deficiency.Method: 22 children aged 3 months to 10 years (nine male) who were diagnosed with vitamin D defi...

Objectives: Hearing loss and ENT problems are frequently seen in children with Achondroplasia. Current international consensus guidance recommends audiological assessment before the age of one year and thereafter in childhood in presence of speech delay, hearing difficulties or features of middle ear effusion. In January 2019, we began a programme of annual hearing screening for children with Achondroplasia residing in Glasgow who attend the Complex Bone Clini...

Introduction: Congenital nasal pyriform aperture stenosis (CNPAS) is an increasingly recognised cause of upper airway obstruction associated with holoprosencephaly, of which solitary median maxillary central incisor (SMMCI) is the least severe form. Studies have described pituitary abnormalities in up to 40%. We aimed to determine the use of baseline endocrine investigations and MRI brain in assessing endocrine dysfunction.Method: Retrospective casenote ...

Background: Bone age (BA) is commonly used in pediatrics to define skeletal maturity for medical and non-medical purposes. Normal range is represented by 2 standard deviations (SDs) above and below the mean. A BA greater than &pm;2 SDs from the chronological age (CA) is considered abnormal. BA in achondroplasia (ACH) has not been fully characterized; calculation is challenging given difficulties in comparing x-rays with standard radiographs if using the Greuli...

Background: ACH, the most common short-limbed skeletal dysplasia, is characterized by defective endochondral ossification resulting from gain-of-function mutations in the fibroblast growth factor receptor 3 (FGFR3) gene, a negative regulator of endochondral bone formation. Current treatment options are non-targeted, ineffective, or painful interventions aimed at preventing or treating complications. Infigratinib is an orally bioavailable and selective...

Background: ACH is the most common short-limbed skeletal dysplasia, affecting between 1 in 15,000 to 1 in 30,000 live births. Children and adults with ACH have disproportionate short stature, with a final height of approx. 131 cm for males and 124 cm for females. People with ACH are prone to significant co-morbidities, including obstructive sleep apnea, chronic otitis media with conductive hearing loss, spinal stenosis, and a propensity towards obesity. In som...

Background: Achondroplasia (ACH), the most common short-limbed skeletal dysplasia, is characterized by impaired endochondral ossification resulting from gain-of-function pathogenic variants in the fibroblast growth factor receptor 3 (FGFR3) gene, a negative regulator of endochondral bone growth. People with ACH are at risk for several significant co-morbidities, including brainstem compression due to foramen magnum stenosis, sleep-disordered breathing, chronic...

Objectives: Achondroplasia (ACH) is characterized by disproportionate short stature and is associated with medical complications and functional constraints. Infigratinib is an oral FGFR3 inhibitor that targets overactive FGFR3 signaling at its origin and is under development as a treatment option for children with ACH. We report Month 18 results from PROPEL 2 (NCT04265651), a Phase 2, multicenter, open-label, dose-escalation and dose-expansion study to evaluat...