Home Infusion With Recombinant Human α-Glucosidase in Children With Pompe Disease: The Dutch Experience Over 20 Years

Imke A M Ditters1, Hidde H Huidekoper1, Jacqueline F Hardon1

  • 1Department of Pediatrics, Center for Lysosomal and Metabolic Diseases, Erasmus MC University Medical Center, Sophia Children's Hospital, PO Box 2060, 3000 CB, Rotterdam, The Netherlands.

Insights

Home enzyme replacement therapy (ERT) with recombinant human α-glucosidase (rhGAA) is safe for children with Pompe disease. Our protocol allows safe home infusions, even for those with classic infantile Pompe disease, with appropriate support.

Area of Science:

  • Biochemistry
  • Genetics
  • Pediatrics

Background:

  • Enzyme replacement therapy (ERT) is the standard treatment for Pompe disease, a rare genetic metabolic myopathy.
  • Home-based ERT is common in adults, but limited data exists for children due to higher doses and infusion-associated reactions (IARs).

Purpose of the Study:

  • To analyze the safety and efficacy of in-hospital versus home-based ERT programs in children with Pompe disease.
  • To provide guidance for implementing home-based ERT in pediatric Pompe disease patients.

Main Methods:

  • Retrospective analysis of 11,898 infusions administered to 52 children with Pompe disease (classic infantile, atypical infantile, childhood onset) between 1999 and 2022.
  • Evaluation of patient characteristics and infusion-associated reactions (IARs), graded by healthcare providers.

Main Results:

  • 55.6% of infusions were administered at home, with a significantly lower IAR rate (1.7%) compared to hospital infusions (8.7%).
  • Most IARs were mild and manageable; severe IARs were rare (21 total), with only two occurring at home.
  • Patients with the classic infantile phenotype experienced the majority of IARs.

Conclusions:

  • Home-based ERT with recombinant human α-glucosidase (rhGAA) is safe and feasible for children with Pompe disease, including those with classic infantile phenotypes.
  • Successful home ERT requires prior safe in-hospital treatment, robust infrastructure, and adequate clinical support.
Abstract

Related Concept Videos

Inborn Errors of Metabolism01:20

Inborn Errors of Metabolism

Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
Glucose Transporters01:27

Glucose Transporters

Glucose transporters facilitate the transport of glucose across the cell membrane. In addition to glucose, some glucose transporters can also aid the movement of other hexoses such as fructose, mannose, and galactose.
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Lysosomal Hydrolases01:22

Lysosomal Hydrolases

Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
Insulin: Dosing Regimen and Adverse Effects01:16

Insulin: Dosing Regimen and Adverse Effects

Insulin-replacement therapy usually includes both long-acting insulin (basal) and short-acting insulin (to cater to postprandial needs). In a diverse group of type 1 diabetes patients, the average daily insulin dose is typically 0.5-0.7 units/kg body weight. However, obese patients and pubertal adolescents may need more due to insulin resistance.
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...