title: Eldelumab [Anti-IP-10] Induction Therapy for Ulcerative Colitis: A Randomised, Placebo-Controlled, Phase 2b Study.
abstract: OBJECTIVE
  Interferon-γ-inducible protein-10 [IP-10] mediates immune cell trafficking from the circulation to the inflamed colon and decreases gut epithelial cell survival. IP-10 expression is increased in patients with ulcerative colitis [UC]. We report efficacy and safety results from a dose-ranging induction study of eldelumab, a fully human monoclonal antibody to IP-10, in moderately to severely active UC.
  
  
  METHODS
  A total of 252 adults with UC [Mayo score ≥ 6 and endoscopic subscore ≥ 2] were randomised 1:1:1 to placebo or eldelumab 15 or 25 mg/kg administered intravenously on Days 1 and 8 and every other week thereafter. The primary endpoint was clinical remission [Mayo score ≤ 2; no individual subscale score > 1] at Week 11. Key secondary endpoints included Mayo score clinical response and mucosal healing at Week 11.
  
  
  RESULTS
  Neither eldelumab 15 or 25 mg/kg resulted in significant increases vs placebo in the proportion of patients achieving Week 11 clinical remission. Remission and response rates were 17.6% and 47.1% with eldelumab 25mg/kg, 13.1% and 44.0% with eldelumab 15mg/kg, and 9.6% and 31.3% with placebo. Clinical remission and response rates were higher in anti-tumour necrosis factor [TNF]-naïve patients treated with eldelumab compared with placebo. Eldelumab treatment was well tolerated and no immunogenicity was observed.
  
  
  CONCLUSIONS
  The primary endpoint was not achieved with induction treatment with eldelumab 15 or 25 mg/kg in patients with UC. Trends towards clinical remission and response were observed in the overall population and were more pronounced in anti-TNF naïve patients. Eldelumab safety signals were consistent with those reported previously [ClinicalTrials.gov number, NCT01294410].
authors.affiliation: Inflammatory Bowel Disease Center, University of California San Diego, La Jolla, CA, USA wsandborn@ucsd.edu.
authors.forename: William J
authors.initials: WJ
authors.lastname: Sandborn
authors.affiliation: Dr Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
authors.forename: Jean-Frédéric
authors.initials: JF
authors.lastname: Colombel
authors.affiliation: Department of Medicine, University of Calgary, Calgary, AB, Canada.
authors.forename: Subrata
authors.initials: S
authors.lastname: Ghosh
authors.affiliation: Dr Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
authors.forename: Bruce E
authors.initials: BE
authors.lastname: Sands
authors.affiliation: Division of Gastroenterology, Hepatology, and Nutrition, University of Louisville School of Medicine, Louisville, KY, USA.
authors.forename: Gerald
authors.initials: G
authors.lastname: Dryden
authors.affiliation: Faculté de Médecine, Université de Nice-Sophia Antipolis, Hôpital de l'Archet, Nice, France.
authors.forename: Xavier
authors.initials: X
authors.lastname: Hébuterne
authors.affiliation: Concord Hospital, Gastroenterology and Liver Services, University of New South Wales, Sydney, Australia.
authors.forename: Rupert W
authors.initials: RW
authors.lastname: Leong
authors.affiliation: Division of Gastroenterology, St Paul's Hospital, Vancouver, BC, Canada.
authors.forename: Brian
authors.initials: B
authors.lastname: Bressler
authors.affiliation: Dr Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
authors.forename: Thomas
authors.initials: T
authors.lastname: Ullman
authors.affiliation: 1st Department of Medicine, Semmelweis University, Budapest, Hungary.
authors.forename: Peter L
authors.initials: PL
authors.lastname: Lakatos
authors.affiliation: Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria, and McMaster University, Department of Internal Medicine, Hamilton, ON, Canada.
authors.forename: Walter
authors.initials: W
authors.lastname: Reinisch
authors.affiliation: Bristol-Myers Squibb, Lawrenceville, NJ, USA.
authors.forename: Li-An
authors.initials: LA
authors.lastname: Xu
authors.affiliation: Formerly of Bristol-Myers Squibb, Lawrenceville, NJ, USA.
authors.forename: Allison
authors.initials: A
authors.lastname: Luo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000911:Antibodies, Monoclonal / Q000627:therapeutic use*; D054357:Chemokine CXCL10 / Q000037:antagonists & inhibitors*; D003093:Colitis, Ulcerative / Q000188:drug therapy*; D005260:Female; D005765:Gastrointestinal Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D007262:Infusions, Intravenous; D008297:Male; D008875:Middle Aged; D012074:Remission Induction; D055815:Young Adult
chemical_list: D000911:Antibodies, Monoclonal; C114753:CXCL10 protein, human; D054357:Chemokine CXCL10; D005765:Gastrointestinal Agents; C000613134:eldelumab
keywords: Inflammatory bowel diseases; ulcerative colitis