Randomised controlled trial of CDP571 antibody to tumour necrosis factor-alpha in Crohn's disease

Lancet. 1997 Feb 22;349(9051):521-4. doi: 10.1016/s0140-6736(97)80083-9.


Background: Tumour necrosis factor-alpha (TNF alpha) is thought to have a central role in the pathogenesis of Crohn's disease. We tested the hypothesis that CDP571, a genetically engineered human antibody to TNF alpha, is effective in modifying disease activity in patients with moderately active Crohn's disease.

Methods: In this double-blind, placebo-controlled study, 31 patients were randomly assigned to CDP571 (n = 21) or placebo (n = 10). The primary endpoint was change in Crohn's disease activity index 2 weeks after a single infusion of CDP571 (5 mg/kg), or human albumin as placebo. One patient who attended no follow-up assessments was excluded from the analyses (CDP571 group).

Findings: The median Crohn's disease activity index fell from 263 (IQR 186.5-323.5) at baseline to 167 (137.5-294.0) at 2 weeks in the CDP571-treated patients (p = 0.0003); the change in the placebo group (253 [240-334] to 247 [183-256]) was not significant. In the treated group, there were also significant differences between baseline and 2 weeks in Harvey-Bradshaw score (p = 0.0005), key symptom score (p = 0.049), alpha 1-glycoprotein concentration (p = 0.012), and erythrocyte sedimentation rate (p = 0.01); concentrations of C-reactive protein fell, but not significantly (p = 0.067). Six patients achieved remission (Crohn's disease activity index < or = 150) and three others had activity indices of 156 or lower. There were no significant changes in the placebo group.

Interpretation: A single 5 mg/kg infusion of CDP571 reduced disease activity in Crohn's disease at 2 weeks. These data suggest that antibody neutralisation of TNF alpha is a potentially effective strategy in the management of Crohn's disease. The use of CDP571 in Crohn's disease requires further study.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Antibodies / therapeutic use*
  • C-Reactive Protein / analysis
  • Crohn Disease / therapy*
  • Double-Blind Method
  • Glycoproteins / blood
  • Humans
  • Middle Aged
  • Placebos
  • Remission Induction
  • Tumor Necrosis Factor-alpha / immunology*


  • Antibodies
  • Glycoproteins
  • Placebos
  • Tumor Necrosis Factor-alpha
  • C-Reactive Protein