Efficacy and Safety of Tumor Necrosis Factor Antagonists in Crohn's Disease: Meta-Analysis of Placebo-Controlled Trials
2008
Background & Aims: We performed a meta-analysis of placebo-controlled trials to evaluate safety and efficacy of tumor necrosis factor (TNF) antagonists for Crohn's disease. Methods: We searched MEDLINE, Cochrane Library, and EMBASE. The primary end points were clinical remission for luminal Crohn's disease and fistula closure at ≥2 consecutive visits. Deaths, serious infections, and malignancies were also analyzed by the methods of Peto and Der Simonian and Laird. Results: Fourteen luminal Crohn's disease trials enrolled 3995 patients. In overall analysis, anti-TNF therapy was effective for induction of remission at week 4 (mean difference, 11%; 95% confidence interval [CI], 6%–16%; P P P Conclusions: Infliximab, adalimumab, and certolizumab are effective in luminal Crohn's disease. Efficacy of anti-TNF agents other than infliximab in treating fistulizing Crohn's disease requires additional investigations. A longer duration of follow-up and a larger number of patients are required to better assess the safety profile of TNF antagonists in Crohn's disease.
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