Steven Polyak

This is a multicenter, randomized, placebo controlled study to evaluate the efficacy and safety of ABX464 given at 25 or 50 mg QD in inducing clinical remission in subjects with moderately to severely active ulcerative colitis who have inadequate response, no response, a loss of response, or an intolerance to either conventional therapies [corticosteroids, immunosuppressant (i.e. azathioprine, 6-mercaptopurine, methotrexate)] and/or advanced therapies [biologics (TNF inhibitors, anti-integrins, anti-IL-23), and/or S1P receptor modulators, and/or JAK inhibitors].

The primary objective is to characterize the efficacy TEV-48574 in adult participants with IBD (moderate to severe Ulcerative Colitis (UC) or Crohn's Disease (CD)) as assessed by induction of clinical remission (UC) and endoscopic response (CD) at week 14. Secondary objectives: - To evaluate the efficacy and dose response of the 2 different dose regimens as assessed by multiple standard measures - To evaluate the safety and tolerability of the 2 different dose regimens - To evaluate the immunogenicity of the 2 different dose regimens The study will consist of a screening period of up to 6 weeks (42 days), a 14-week treatment period, and a 4-week follow-up period.

This is a study to learn if the experimental medicine (called PF-07054894) is safe, effective, and how it is processed in adult people with ulcers in the colon.