A Study to Investigate the Efficacy and Safety of SAR442970 in Adult Participants With Ulcerative Colitis

This is a phase 2b, randomized, double-blind, 3-arm study for the treatment of Ulcerative Colitis. The primary objective of this study is to assess the efficacy of different doses of SAR442970 compared with placebo in participants with moderate to severe Ulcerative Colitis. The total study duration is up to 168 weeks, with a treatment period of up to 158 weeks including an open-label (OL) long-term extension (LTE) period of up to 104 weeks for eligible participants.

• : Participants are eligible to be included in the study only if all of the following criteria apply: * Male or female participants aged 18 to 75 years inclusive, at the time of signing the informed consent * Participants who have had clinical evidence of active UC for ≥3 months before screening and confirmed by endoscopy during the screening period * Must have active moderate-to-severe UC at screening as defined by a modified Mayo Score (mMS) of 5 to 9 (without the Physician Global Assessment (PGA), with a minimum Rectal Bleeding (RB) subscore ≥1, a minimum Stool Frequency (SF) subscore ≥1, mMES ≥2 confirmed by central reader, a minimum sum of all subscores of 5, and a minimum disease extent of 15 cm from the anal verge * Must have received prior treatment for UC (either "a" or "b" below or combination of both): 1. History of inadequate response to, loss of response to or intolerance to standard treatment with any of the following compounds: amino-salicylates, corticosteroids, methotrexate, azathioprine, or 6-mercaptopurine, or history of corticosteroid dependence (defined as an inability to successfully taper corticosteroids without recurrence of UC) AND history of no prior exposure to Advanced Therapies (ATs), such…

Use the source registry for the full inclusion and exclusion criteria before discussing referral or enrolment.