Safety and efficacy of once-weekly application of Etanercept in children with juvenile idiopathic arthritis

Rheumatol Int. 2007 Dec;28(2):153-6. doi: 10.1007/s00296-007-0399-1. Epub 2007 Jul 20.


Etanercept-a recombinant TNF receptor fusion protein-has been approved for the treatment of resistant polyarticular juvenile idiopathic arthritis. In children with JIA, 0.4 mg/kg is given subcutaneously twice weekly. In adult patients efficacy and safety of etanercept, 25 mg twice weekly was comparable to 50 mg once weekly. In the German paediatric Etanercept registry six patients with JIA were identified, who received Etanercept once weekly primarily and six patients who received Etanercept initially twice weekly and later once weekly with increased dose per injection. In both groups, treatment was efficacious and well tolerated. In patients switching from twice to once weekly administration, there was no loss of efficacy and no increase in toxicity. At last observation 10/12 patients achieved an ACR-JRA 30 and 8/12 achieved an ACR-JRA70 response. These data indicate that once weekly application of etanercept is safe and efficacous in children.

MeSH terms

  • Antirheumatic Agents / adverse effects
  • Antirheumatic Agents / therapeutic use*
  • Arthritis, Juvenile / drug therapy*
  • Child
  • Child, Preschool
  • Drug Administration Schedule
  • Etanercept
  • Female
  • Humans
  • Immunoglobulin G / adverse effects
  • Immunoglobulin G / therapeutic use*
  • Infusions, Subcutaneous
  • Male
  • Receptors, Tumor Necrosis Factor / therapeutic use*
  • Recombinant Fusion Proteins / administration & dosage
  • Recombinant Fusion Proteins / therapeutic use
  • Treatment Outcome


  • Antirheumatic Agents
  • Immunoglobulin G
  • Receptors, Tumor Necrosis Factor
  • Recombinant Fusion Proteins
  • Etanercept