Efficacy of Biologic Agents and Small Molecules for Endoscopic Improvement and Mucosal Healing in Patients with Moderate-to-Severe Ulcerative Colitis: Systematic Review and Meta-Analysis
Abstract
Background and Aim: The therapeutic landscape for ulcerative colitis (UC) is rapidly evolving, with an increasing number of biologic agents available. This systematic review and meta-analysis synthesized randomized controlled trials (RCTs) data on biologic therapies for achieving key endoscopic and histologic endpoints in moderate to severe UC. Methods: A systematic search of MEDLINE, EMBASE, Cochrane Library, Web of Science and grey literature was conducted through November 2024. Separate meta-analyses were performed for induction and maintenance. A random-effects model was used to estimate relative risks (RR), with 95% confidence intervals (CI), and confidence in estimates was evaluated with the GRADE approach (Grading of Recommendation Assessment, Development and Evaluation). Results: We included 40 RCTs (13 therapies, 14,369 patients). Thirty-two trials provided data in induction and twenty-eight in maintenance. During induction, all biologic therapies, except mirikizumab and filgotinib 100 mg, demonstrated superiority over placebo (RR 2.02, 95% CI: 1.76–2.31, I2 = 72%) for endoscopic improvement. Upadacitinib showed the highest efficacy (RR 5.53, 95% CI: 3.78–8.09). For mucosal healing, all interventions were superior to placebo (RR 2.95, 95% CI: 2.11–4.13, I2 = 61%), except filgotinib 100 mg. Risankizumab showed the highest efficacy (RR 10.25, 95% CI: 2.49–42.11). In maintenance, all therapies showed superiority over placebo for endoscopic improvement. For mucosal…
How strong is the evidence?
Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 14,369 participants or records.
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