Safety and pharmacokinetics of plasma-derived mannose-binding lectin (MBL) substitution in children with chemotherapy-induced neutropaenia

Florine N J Frakking*, Nannette Brouwer, Marianne D van de Wetering, Ilona Kleine Budde, Paul F W Strengers, Alwin D Huitema, Inga Laursen, Gunnar Houen, Huib N Caron, Koert M Dolman, Taco W Kuijpers

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Mannose-binding lectin (MBL)-deficient children with cancer may benefit from substitution of the innate immune protein MBL during chemotherapy-induced neutropaenia. We determined the safety and pharmacokinetics of MBL substitution in a phase II study in MBL-deficient children. Twelve MBL-deficient children with cancer (aged 0-12 years) received infusions of plasma-derived MBL once, or twice weekly during a chemotherapy-induced neutropaenic episode (range: 1-4 weeks). Four patients participated multiple times. Target levels of 1.0 microg/ml were considered therapeutic. In total, 65 MBL infusions were given. No MBL-related adverse reactions were observed, and the observed trough level was 1.06 microg/ml (range: 0.66-2.05 microg/ml). Pharmacokinetics were not related to age after correction for body weight. The half-life of MBL, for a child of 25 kg, was 36.4h (range: 23.7-66.6h). No anti-MBL antibodies were measured 4 weeks after each MBL course. Substitution therapy with MBL-SSI twice weekly was safe and resulted in trough levels considered protective.

Original languageEnglish
Pages (from-to)505-12
Number of pages8
JournalEuropean Journal of Cancer
Volume45
Issue number4
DOIs
Publication statusPublished - Mar 2009

Keywords

  • Antineoplastic Agents/adverse effects
  • Child
  • Child, Preschool
  • Dose-Response Relationship, Drug
  • Drug Administration Schedule
  • Female
  • Humans
  • Infant
  • Infant, Newborn
  • Male
  • Mannose-Binding Lectin/adverse effects
  • Neutropenia/blood
  • Patient Selection
  • Prospective Studies

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