Evaluating Study Withdrawal Among Biologics and Immunomodulators in Treating Ulcerative Colitis: A Meta-analysis of Controlled Clinical Trials

Inflammatory Bowel Diseases
Eric D ShahGil Y Melmed

Abstract

We conducted a systematic review and meta-analysis to evaluate the efficacy and adverse event (AE)-associated tolerability of treatment with immunomodulators and biologics in ulcerative colitis clinical trials. We performed a literature search of PubMed and the Cochrane databases to identify randomized placebo-controlled trials of immunomodulators and biologics. Tolerability was defined through study withdrawal due to AEs and efficacy through clinical response in induction trials and clinical remission in maintenance trials. We performed meta-analyses using a random-effects model to determine relative risks (RRs) of efficacy and study withdrawal. Number needed to treat (NNT) and number needed to stop (NNS) were determined. The ratio of NNS/NNT was calculated, with a higher ratio indicating a greater number of patients in remission for every AE study discontinuation. We examined 13 single-agent trials representing biologics (infliximab, adalimumab, golimumab, and vedolizumab) and immunomodulators (tacrolimus and azathioprine). Induction therapy did not result in excess study withdrawal with immunomodulators (RR = 0.9, 95% CI 0.1-12.0) or biologics (RR = 0.7, 95% CI 0.3-1.8), therefore the NNS/NNT ratio could not be assessed beca...Continue Reading

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Citations

Jun 28, 2020·Digestive Diseases and Sciences·Bhairavi BalramTalat Bessissow
Dec 14, 2018·Digestive Diseases and Sciences·Cristina Suárez FerrerLuis Abreu Garcia

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