A Study to Investigate Efficacy and Safety of SAR441566 in Patients With Ulcerative Colitis
Eligible age
18–75 yrs
Accepts
All genders
Locations
11 states
Healthy volunteers
No
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About this study
This is a Phase 2, multinational, multicenter, randomized, double-blind, placebo-controlled, dose ranging study to evaluate the efficacy and safety of SAR441566 in adults with moderate-to-severe UC. The primary objective of this study is to assess efficacy of different doses of SAR441566 on clinical remission in participants with moderate-to-severe ulcerative colitis. This study will include a screening period of up to 28 days (+ 7 calendar days if needed) followed by the main study treatment period of 52 weeks which will be comprised of a double blind (DB) treatment period with 12 weeks of induction period followed by a maintenance period of 40 weeks and 2-week follow-up after end of treatment. Additionally, an Open Label (OL) period of up to 40 weeks will be offered to eligible participants (for participants not enrolling in the LTS study). * The study duration will be up to 59 weeks. * The treatment duration will be up to 52 weeks in the DB arm and up to 40 weeks in the OL arm. * The number of visits will be 12 for the main study treatment period and 8 for the OL treatment period.
Sponsor: Sanofi
You may qualify if…
- ✓ 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 clinical evidence of active UC for ≥3 months before screening and confirmed by endoscopy during the screening period
- ✓ 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, a mMES ≥2 confirmed by central reader, a minimum sum of all subscores of 5, and a disease extent \>15 cm from the anal verge
- ✓ Must have received prior treatment for UC (either "a" or "b" below or a combination of both "a" and "b"):
- ✓ 1. History of no prior exposure to approved Advanced Therapy (AT), but having inadequate response to, loss of response to or intolerance to standard treatment with any of the following : 5-ASA, thiopurines (eg.6-MP, AZA), MTX, oral or intravenous (IV) corticosteroids or history of corticosteroid dependence (defined an inability to successfully taper corticosteroids without recurrence of UC) OR
- ✓ 2. History of inadequate response to, loss of response to or intolerance to treatment with ≥1 approved AT such as a biologic agent (eg. TNF antagonists, anti-integrin other than natalizumab, anti-IL-12/23, anti-IL-23, or a small molecule (such as a JAKi or S1PRm) for UC
- ✓ Contraceptive use by men and women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.
You may not qualify if…
- ✕ Participants are excluded from the study if any of the following criteria apply:
- ✕ Participants with active CD, indeterminate colitis, ischemic colitis, microscopic colitis
- ✕ Participants with the following ongoing known complications of UC: fulminant colitis, toxic megacolon, or any other manifestation that might require bowel surgery while enrolled in the study
- ✕ Participant with prior colectomy, ostomy or ileoanal pouch, or anticipated colectomy during their participation in the study
- ✕ Participants with fecal sample positive for ova or parasites, bacterial pathogens, or positive for Clostridium difficile B toxin in stools
- ✕ Participants with active tuberculosis (TB) or a history of incompletely treated active TB or latent TB infection per local guidelines
- ✕ Participants with Positive Hepatitis B surface antigen (HBsAg), or hepatitis B core antibody (HBcAb) and/or hepatitis C virus antibody (HCVAb) at the screening visit
- ✕ Participants with any other active, chronic or recurrent infection, including recurrent or disseminated herpes zoster or disseminated herpes simplex
Where it's recruiting
Sun City
Bristol
Clermont · Kissimmee · Miami Lakes · Tampa
Glenview · Gurnee
Ann Arbor
New York · Queens Village
Lima
Uniontown
Charleston
Katy · Lubbock · Southlake
Seattle · Tacoma
Source: ClinicalTrials.gov · NCT06867094 · last updated 2026-06-23