PMID- 23519173 OWN - NLM STAT- MEDLINE DCOM- 20130926 LR - 20151119 IS - 1536-7355 (Electronic) IS - 1076-1608 (Linking) VI - 19 IP - 3 DP - 2013 Apr TI - Anaphylaxis to etanercept in two children with juvenile idiopathic arthritis. PG - 129-31 LID - 10.1097/RHU.0b013e318285f1e9 [doi] AB - Anti-tumor necrosis factor alpha (TNFalpha) medications have revolutionized the care of children and adults with chronic arthritis. They are quick acting, highly effective, and remarkably safe, particularly in children with juvenile idiopathic arthritis (JIA). Anti-TNFalpha agents come in 2 basic varieties: monoclonal antibodies to TNFalpha (e.g., infliximab, adalimumab) and a fusion protein containing a TNF receptor (etanercept). Although hypersensitivity reactions are not uncommon with some of the TNFalpha antibodies (e.g., infliximab), there are only rare reports of anaphylaxis to subcutaneous injections of etanercept in adults with rheumatoid arthritis. Herein, we report 2 cases of anaphylaxis in children with JIA after etanercept injections. Although rare, pediatricians need to be aware of this potentially dangerous occurrence. FAU - Crayne, Courtney B AU - Crayne CB AD - School of Medicine, University of Alabama, Birmingham, AL, USA. FAU - Gerhold, Kerstin AU - Gerhold K FAU - Cron, Randy Q AU - Cron RQ LA - eng PT - Case Reports PT - Journal Article PT - Review PL - United States TA - J Clin Rheumatol JT - Journal of clinical rheumatology : practical reports on rheumatic & musculoskeletal diseases JID - 9518034 RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Antirheumatic Agents) RN - 0 (Histamine Antagonists) RN - 0 (Immunoglobulin G) RN - 0 (Receptors, Tumor Necrosis Factor) RN - 0 (Tumor Necrosis Factor-alpha) RN - 9PHQ9Y1OLM (Prednisolone) RN - FYS6T7F842 (Adalimumab) RN - OP401G7OJC (Etanercept) RN - YKH834O4BH (Epinephrine) SB - IM MH - Adalimumab MH - Adolescent MH - Anaphylaxis/*chemically induced/*diagnosis/drug therapy MH - Antibodies, Monoclonal, Humanized/therapeutic use MH - Antirheumatic Agents/*adverse effects/*therapeutic use MH - Arthritis, Juvenile/*drug therapy MH - Child MH - Epinephrine/therapeutic use MH - Etanercept MH - Female MH - Histamine Antagonists/therapeutic use MH - Humans MH - Immunoglobulin G/*adverse effects/*therapeutic use MH - Injections, Subcutaneous MH - Male MH - Prednisolone/therapeutic use MH - Receptors, Tumor Necrosis Factor/*therapeutic use MH - Treatment Outcome MH - Tumor Necrosis Factor-alpha/antagonists & inhibitors EDAT- 2013/03/23 06:00 MHDA- 2013/09/27 06:00 CRDT- 2013/03/23 06:00 PHST- 2013/03/23 06:00 [entrez] PHST- 2013/03/23 06:00 [pubmed] PHST- 2013/09/27 06:00 [medline] AID - 10.1097/RHU.0b013e318285f1e9 [doi] PST - ppublish SO - J Clin Rheumatol. 2013 Apr;19(3):129-31. doi: 10.1097/RHU.0b013e318285f1e9.