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flag FDA approves injectable guselkumab for ulcerative colitis, offering self-administration and rapid, sustained relief.

flag In 2025, ulcerative colitis treatment saw major advances with the FDA approval of subcutaneous guselkumab (Tremfya) for induction in adults with moderately to severe UC, making it the first IL-23 inhibitor offering both subcutaneous and intravenous options for UC and Crohn’s disease. flag Based on the ASTRO trial, the subcutaneous regimen—400 mg at weeks 0, 4, and 8—showed significant improvements in remission, endoscopic response, and symptom relief, with benefits seen by week 2 and sustained through week 24. flag The option enables self-administration, reducing clinic visits. flag The European Medicines Agency’s CHMP recommended a similar subcutaneous induction, supporting broader access. flag These developments reflect a shift toward more convenient, targeted, and effective therapies, including biosimilars, novel biologics, and microbiome-based treatments, improving outcomes for patients with unmet needs.

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