Journal
ALIMENTARY PHARMACOLOGY & THERAPEUTICS
Volume 45, Issue 1, Pages 3-13Publisher
WILEY
DOI: 10.1111/apt.13847
Keywords
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Funding
- UCB Pharma
- Canadian Institute of Health Research
- Alberta-Innovates Health-Solutions
- Abbvie
- Shire
- GlaxoSmithKline
- Merck
- Janssen
- Genentech
- Mitsubishi
- Ferring
- Norgine
- Tillots
- Vifor
- Therakos
- Pharmacosmos
- Pilege
- BMS
- UCB-pharma
- Hospira
- Celltrion
- Takeda
- Biogaran
- Boerhinger-Ingelheim
- Lilly
- Pfizer
- HAC-Pharma
- Index Pharmaceuticals
- Amgen
- Sandoz
- Forward Pharma GmbH
- Celgene
- Biogen
- Lycera
- Samsung Bioepis
- US National Institutes of Health
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Introduction Crohn's disease (CD) and ulcerative colitis (UC) have a progressive course leading to hospitalisation and surgery. The ability of existing therapies to alter disease course is not clearly defined. Aim To investigate the comparative efficacy of currently available inflammatory bowel disease (IBD) therapies to reduce hospitalisation and surgery. Methods We conducted a systematic review in MEDLINE/PubMed for randomised controlled trials (RCT) published between January 1980 and May 2016 examining efficacy of biological or immunomodulator therapy in IBD. We performed direct comparisons of pooled proportions of hospitalisation and surgery. Pair-wise comparisons using a random-effects Bayesian network meta-analysis were performed to assess comparative efficacy of different treatments. Results We identified seven randomised controlled trials (5 CD; 2 UC) comparing three biologics and one immunomodulator with placebo. In CD, anti-TNF biologics significantly reduced hospitalisation [Odds ratio (OR) 0.46, 95% confidence interval (CI) 0.36-0.60] and surgery (OR 0.23, 95% CI 0.13-0.42) compared to placebo. No statistically significant reduction was noted with azathioprine or vedolizumab. Azathioprine was inferior to both infliximab and adalimumab in preventing CD-related hospitalisation (>97.5% probability). Anti-TNF biologics significantly reduced hospitalisation (OR 0.48, 95% CI 0.29-0.80) and surgery (OR 0.67, 95% CI 0.46-0.97) in UC. There were no statistically significant differences in the pair-wise comparisons between active treatments. Conclusions In CD and UC, anti-TNF biologics are efficacious in reducing the odds of hospitalisation by half and surgery by 33-77%. Azathioprine and vedolizumab were not associated with a similar improvement, but robust conclusions may be limited due to paucity of RCTs.
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