Anti-T-lymphocyte globulin exposure is associated with acute graft-versus-host disease and relapse in pediatric acute lymphoblastic leukemia patients undergoing hematopoietic stem cell transplantation: a multinational prospective study

Lisa V E Oostenbrink*, Erik G J Von Asmuth, Cornelia M Jol-van der Zijde, Anja M Jansen-Hoogendijk, Carly Vervat, Robbert G M Bredius, Maarten J D Van Tol, Marco W Schilham, Petr Sedlacek, Marianne Ifversen, Adriana Balduzzi, Peter Bader, Christina Peters, Dirk Jan A R Moes, Arjan C Lankester*

*Corresponding author for this work

Abstract

Anti T-lymphocyte globulin (ATLG) is used in hematopoietic stem cell transplantation (HSCT) to prevent graft-versus-host disease (GvHD) and graft failure. To date, insight in ATLG pharmacokinetics and -dynamics (PK/PD) is limited, and population PK (POPPK) models are lacking. In this prospective study, we describe ATLG POPPK using NONMEM® and the impact of ATLG exposure on clinical outcome and immune reconstitution in a homogeneous cohort of pediatric acute lymphoblastic leukemia (ALL) patients transplanted with a matched unrelated donor and receiving uniform ATLG dosing. Based on 121 patients and 812 samples for POPPK analysis, a two-compartmental model with parallel linear and non-linear clearance and bodyweight as covariate, best described the ATLG concentrationtime data. The level of ATLG exposure (day active ATLG day 16 8.2%, p.

Original languageEnglish
JournalHaematologica
Volume109
Issue number9
Pages (from-to)2854-2863
Number of pages10
ISSN0390-6078
DOIs
Publication statusPublished - 1 Sept 2024

Keywords

  • Adolescent
  • Antilymphocyte Serum/administration & dosage
  • Child
  • Child, Preschool
  • Female
  • Graft vs Host Disease/etiology
  • Hematopoietic Stem Cell Transplantation/adverse effects
  • Humans
  • Infant
  • Male
  • Precursor Cell Lymphoblastic Leukemia-Lymphoma/therapy
  • Prospective Studies
  • Recurrence
  • Treatment Outcome

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