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Stem cell transplantation for autoimmune disorders. Refractory juvenile idiopathic arthritis

Nico M Wulffraat1, Ismee M de Kleer, Berent J Prakken

  • 1Department of Paediatric Immunology and Rheumatology, Wilhelmina Children's Hospital, University Medical Center Utrecht, P.O. Box 85090, Utrecht 3508 AB, The Netherlands. n.wulffraat@wkz.azu.nl

Best Practice & Research. Clinical Haematology
|August 11, 2004
PubMed

Insights

Hematopoietic stem cell transplantation (HSCT) shows promise for refractory juvenile idiopathic arthritis, with 18 of 34 children achieving drug-free remission. However, infectious complications and mortality remain concerns.

Area of Science:

  • Pediatric Rheumatology
  • Immunology
  • Hematology

Background:

  • Juvenile idiopathic arthritis (JIA) is a chronic autoimmune disease affecting children.
  • Refractory JIA cases often require advanced treatment strategies.
  • Hematopoietic stem cell transplantation (HSCT) has been explored as an experimental therapy for severe JIA.

Purpose of the Study:

  • To evaluate the feasibility, safety, and efficacy of HSCT in children with refractory JIA.
  • To analyze immunological reconstitution and key rheumatological parameters post-HSCT.
  • To identify complications and mortality associated with HSCT in this pediatric population.

Main Methods:

  • Retrospective analysis of follow-up data from 34 children with JIA treated with HSCT.
  • Data collection included immunological reconstitution, complications, and rheumatological parameters.
  • Clinical follow-up ranged from 12 to 48 months.

Main Results:

  • Eighteen out of 34 patients achieved drug-free complete remission.
  • Seven patients who achieved remission had previously failed anti-tumour necrosis factor-alpha therapy.
  • Six patients showed partial response, and seven experienced disease relapse.
  • Infectious complications were frequent, with three transplant-related and two disease-related deaths.

Conclusions:

  • HSCT is a feasible and potentially effective treatment for refractory JIA, offering complete remission in over half of the patients.
  • Significant infectious complications and mortality underscore the risks associated with HSCT.
  • Further research is needed to understand the increased risk of reactive haemophagocytosis in systemic JIA patients undergoing HSCT.

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