Comparative efficacy of pharmacological interventions in ulcerative colitis: A Network Meta Analysis

Introduction Ulcerative colitis is chronic inflammatory condition affecting the colon, necessitating remission inducing therapeutic interventions. With the emergence of newer more advanced options, their relative effectiveness remains unclear. This network meta-analysis (NMA) will compare the effectiveness of presently available biologics and small molecules in achieving and maintaining remission amongst patients of moderate to severe ulcerative colitis as part of induction and maintenance therapy. Methods A systematic search was conducted up to 21st February 2025, including only phase 2b/3 or 3 randomized controlled trials. The primary outcome was induction and maintenance of clinical remission (Full Mayo Score (FMS) ≤ 2, with no individual subscore > 1). Secondary outcomes assessed were clinical response, endoscopic improvement (Mayo Endoscopic Score (MES) ≤ 1 either with or without friability) and steroid free remission. Results Across 22 studies (7,683 patients), upadacitinib had the highest likelihood of inducing clinical remission (99.08%), clinical response (97.44%) and endoscopic improvement (99.32%), followed by Infliximab and guselkumab following close by for specific outcomes. In maintenance of clinical remission and endoscopic improvement upadacitinib again ranked highest (95.60%) and (99.46%). Tofacitinib (92.43%) has the highest probability with upadacitinib (87.73%) following behind in achieving steroid free remission. Conclusion Upadacitinib displayed high efficacy across multiple outcomes in both induction and maintenance therapy with Infliximab, guselkumab, and filgotinib following closely behind. For achieving steroid free remission tofacitinib has the highest probability of doing so. Overall small molecules and selective IL-23 inhibitors seems promising alternative to older biologics though additional head-to-head trial are warranted along with more real-world data.