ArticleUnited European gastroenterology journal2026
Induction and Prolonged Induction With Mirikizumab in Ulcerative Colitis-A Prospective, Real-World Study From the Sicilian Network for Inflammatory Bowel Disease (SN-IBD).
Article in United European gastroenterology journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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25 authors.
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Abstract
backgroundMirikizumab (MIRI), an IgG4 monoclonal antibody targeting IL-23 p19, was recently licensed for ulcerative colitis (UC). Most available data come from the pivotal trials, but real-life data are scant. We aimed to evaluate the effectiveness and safety of MIRI in a real-world setting.
methodsUC patients from 12 centres of the SN-IBD were prospectively enrolled. The primary endpoints were clinical response, steroid-free remission (SFR), and reduction of urgency at week 12 and at week 24. As secondary endpoint, the need for prolonged induction was considered. All patients received 3 infusions at monthly intervals of 300 mg MIRI; in case of inadequate response, the induction period was prolonged. Urgency was determined by means of the Urgency Numerical Rating Scale (UNRS).
resultsOne hundred and five patients were included. Previous failures to 2 or more lines of advanced therapies were present in 74% of patients. At week 12, 24% of patients achieved a clinical response and 53% achieved SFR. At week 24 (n = 71), the rates were 20% and 68%, respectively. The median urgency score decreased from 6 at baseline to 2 at week 12 and to 1 at week 24 (p < 0.001, both). Prolonged induction was necessary to half of patients. Adverse events were reported in 5% of patients. Treatment failures occurred in 14 patients (13%).
conclusionsOur real-life study confirmed the short-term effectiveness and safety of MIRI in patients with UC especially in relieving bowel urgency. The flexible induction schedule allows an additional gain in response and remission.
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