Efficacy and safety of short‐term adalimumab treatment in patients with active Crohn's disease who lost response or showed intolerance to infliximab: a prospective, open‐label, multicentre trial

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Abstract
The use of tumour necrosis factor antagonists has changed the therapeutic approach to Crohn's disease. To determine response and remission rates associated with the 4-week induction phase of adalimumab treatment in patients with luminal and/or fistulizing Crohn's disease, who have lost response to or become intolerant of infliximab. In this multicentre, prospective, open-label, observational, 52-week study, 50 adults received an induction dose of adalimumab (160 mg at baseline followed by 80 mg at week 2). Of the 36 patients with luminal Crohn's disease, 83% achieved clinical response [> or =70-point reduction in the Crohn's Disease Activity Index (CDAI) score] and 42% achieved clinical remission (CDAI score or =50% decrease in the number of fistulas that were draining at baseline) at week 4. Of the 19 adverse events, most [13 (68%)] were mild, and no serious or infectious adverse events occurred. Adalimumab may be an effective alternative in patients with luminal and/or fistulizing Crohn's disease who have lost response to or become intolerant of infliximab.