title: Role of azathioprine in severe ulcerative colitis: one-year, placebo-controlled, randomized trial.
abstract: OBJECTIVE
  To investigate the efficacy of azathioprine in treating patients with severe ulcerative colitis.
  
  
  METHODS
  One-year, randomized, placebo-controlled trial.
  
  
  METHODS
  83 patients with severe ulcerative colitis were enrolled. Fifty patients who relapsed within two months on corticosteroid withdrawal were randomized into two groups. The azathioprine group received oral sulfasalazine (6-8 g/day), oral prednisolone (1 mg/Kg/day) and oral azathioprine (2 mg/Kg/day). The placebo group received oral sulfasalazine (6-8 g/day), oral prednisolone (1 mg/Kg/day) and placebo. Corticosteroids were tapered over 12-16 weeks.
  
  
  RESULTS
  Five patients (2 in azathioprine group, 3 in placebo group) dropped out of the study. Three patients in the azathioprine group had side effects. The number of patients going into complete remission and partial remission was not significantly different in the two groups. The proportion of relapses in the azathioprine group was lower than in the placebo group (p < 0.05).
  
  
  CONCLUSIONS
  In patients with ulcerative colitis, azathioprine had no effect in achieving remission, when given in combination with prednisolone; however, it lowers the proportion of relapses. Side effects like pancreatitis and hepatitis are mild and respond promptly to drug withdrawal.
authors.affiliation: Department of Medicine, Dayanand Medical College and Hospital, Ludhiana, Punjab.
authors.forename: A
authors.initials: A
authors.lastname: Sood
authors.forename: V
authors.initials: V
authors.lastname: Midha
authors.forename: N
authors.initials: N
authors.lastname: Sood
authors.forename: V
authors.initials: V
authors.lastname: Kaushal
mesh_terms: D001379:Azathioprine / Q000627:therapeutic use*; D003093:Colitis, Ulcerative / Q000188:drug therapy*; D005260:Female; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use*; D008297:Male; D011446:Prospective Studies; D012008:Recurrence; D012680:Sensitivity and Specificity; D016037:Single-Blind Method; D016896:Treatment Outcome
chemical_list: D007166:Immunosuppressive Agents; D001379:Azathioprine