Clinical Profiles of Children with Hypophosphatasia prior to Treatment with Enzyme Replacement Therapy: An Observational Analysis from the Global HPP Registry.

Autor: Martos-Moreno GÁ; Departments of Pediatrics and Pediatric Endocrinology Hospital Infantil Universitario Niño Jesús, IIS La Princesa, Universidad Autónoma de Madrid, CIBERobn, ISCIII, Madrid, Spain., Rockman-Greenberg C; Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Manitoba, Canada., Ozono K; Department of Pediatrics, Graduate School of Medicine, Osaka University, Osaka, Japan., Petryk A; Alexion, AstraZeneca Rare Disease, Boston, Massachusetts, USA., Kishnani PS; Division of Medical Genetics, Department of Pediatrics, Duke University Medical Center, Durham, North Carolina, USA., Dahir KM; Division of Endocrinology and Metabolism, Vanderbilt University Medical Center, Nashville, Tennessee, USA., Seefried L; Orthopedic Department, University of Würzburg, Würzburg, Germany., Fang S; Alexion, AstraZeneca Rare Disease, Boston, Massachusetts, USA., Högler W; Department of Paediatrics and Adolescent Medicine, Johannes Kepler University Linz, Linz, Austria.; Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK., Linglart A; AP-HP, Paris-Saclay University, service d'endocrinologie et diabète de l'enfant, DMU 3 SEA, Centre de Référence des Maladies Rares du Métabolisme du Calcium et du Phosphate, Filière OSCAR; Paris-Saclay University, INSERM U1185, Bicêtre Paris-Saclay Hospital, Le Kremlin-Bicêtre, Paris, France.
Jazyk: angličtina
Zdroj: Hormone research in paediatrics [Horm Res Paediatr] 2024; Vol. 97 (3), pp. 233-242. Date of Electronic Publication: 2023 Jul 13.
DOI: 10.1159/000531865
Abstrakt: Introduction: The objective of this study was to better understand the clinical profiles of children with hypophosphatasia (HPP) prior to treatment with enzyme replacement therapy (ERT).
Methods: Pretreatment demographics and medical histories of ERT-treated children (aged <18 years) enrolled in the Global HPP Registry (2015-2020) were analyzed overall, by age at first HPP manifestation (<6 months vs. 6 months to 18 years), and by geographic region (USA/Canada, Europe, and Japan).
Results: Data from 151 children with HPP were analyzed. Sex distribution was balanced overall (52.3% female; 47.7% male) but differed in Japan (63.0% female; 37.0% male). Prior to ERT initiation, common manifestations were skeletal (67.5%) and extraskeletal, with the foremost types being muscular (48.3%), constitutional/metabolic (47.0%), and neurologic (39.7%). A high proportion of children who first presented at <6 months of age (perinatal/infantile period) had a history of bone deformity (59.3%) and respiratory failure (38.3%), while those aged 6 months to 18 years at first manifestation had a predominance of early loss of primary teeth (62.3%) and gross motor delay (41.0%). Those from Japan were reported to have a younger median age overall, the highest proportion of skeletal manifestations (80.4%) and growth impairment, while European data reported the highest proportion of muscular manifestations (70.7%). In the USA/Canada, skeletal and muscular manifestations were reported at the same frequency (57.4%).
Conclusion: Prior to ERT, skeletal and extraskeletal manifestations were commonly reported in children with HPP, with differences by age at first HPP manifestation and geographical region. Comprehensive assessments of children with HPP are warranted prior to ERT initiation.
(© 2023 The Author(s). Published by S. Karger AG, Basel.)
Databáze: MEDLINE