title: The use of ustekinumab in autoimmune disease.
abstract: BACKGROUND
  The advent of biologic therapies has revolutionized the treatment of autoimmune diseases including psoriasis, autoimmune arthritides and inflammatory bowel disease. With recent advances in our understanding of the immunogenetic pathways involved in the pathogenesis of these conditions, newer, more targeted biologic therapies have been developed. Ustekinumab is an antibody to the common p40 subunit of IL-12 and IL-23, which has been studied in the treatment of psoriasis, psoriatic arthritis, Crohn's disease and multiple sclerosis.
  
  
  METHODS
  This review details the efficacy and safety of ustekinumab in all clinical studies to date, using PubMed listed publications and official product websites.
  
  
  RESULTS
  Readers will gain a comprehensive understanding of the mechanism of action of ustekinuamb, its pharmacodynamic and pharmacokinetic profile, and its clinical efficacy and safety in the treatment of psoriasis, psoriatic arthritis, Crohn's disease and multiple sclerosis.
  
  
  CONCLUSIONS
  Ustekinumab has shown significant efficacy in the treatment of chronic plaque psoriasis in Phase III studies, and promising results in Phase II studies in psoriatic arthritis. Efficacy has been shown in Crohn's disease only in non-responders to infliximab. Ustekinumab did not show benefit in the treatment of multiple sclerosis.
authors.affiliation: Baylor Research Institute, Department of Dermatology, 3900 Junius Street, Suite 1125, Dallas, Texas 75204, USA. caitriona.ryan@baylorhealth.edu
authors.forename: Caitriona
authors.initials: C
authors.lastname: Ryan
authors.forename: Breck
authors.initials: B
authors.lastname: Thrash
authors.forename: Richard B
authors.initials: RB
authors.lastname: Warren
authors.forename: Alan
authors.initials: A
authors.lastname: Menter
mesh_terms: D000911:Antibodies, Monoclonal / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D061067:Antibodies, Monoclonal, Humanized; D001327:Autoimmune Diseases / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D006801:Humans; D014018:Tissue Distribution; D000069549:Ustekinumab
chemical_list: D000911:Antibodies, Monoclonal; D061067:Antibodies, Monoclonal, Humanized; D000069549:Ustekinumab