A Study to Investigate the Efficacy and Safety of SAR442970 in Adult Participants With Ulcerative Colitis
COLOR UC
A Phase 2b, Multi-national, Multi-center, Randomized, Double-blind, Placebo-controlled, Dose-ranging Study Followed by a Long-term Extension to Evaluate the Efficacy and Safety of SAR442970 in Adult Participants With Moderate to Severe Ulcerative Colitis
3 other identifiers
interventional
99
12 countries
67
Brief Summary
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Jul 2025
Typical duration for phase_2
67 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 28, 2025
CompletedFirst Posted
Study publicly available on registry
May 16, 2025
CompletedStudy Start
First participant enrolled
July 7, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 17, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
October 17, 2029
April 23, 2026
April 1, 2026
1.4 years
April 28, 2025
April 22, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Proportion of participants who achieve clinical remission at the end of Week 16 by modified Mayo Score (mMS)
Clinical remission is based on modified Mayo subscores. The mMS ranges from 0 to 9 with higher scores indicating greater disease severity.
At Week 16
Secondary Outcomes (25)
Proportion of participants who achieve endoscopic improvement at Week 16
At Week 16
Proportion of participants who achieve endoscopic improvement at Week 52
At Week 52
Proportion of participants who achieve endoscopic response at Week 16
At Week 16
Proportion of participants who achieve endoscopic response at Week 52
At Week 52
Proportion of participants who achieve endoscopic remission at Week 16
At Week 16
- +20 more secondary outcomes
Study Arms (3)
SAR442970 Dose Regimen A
EXPERIMENTALParticipants will receive SAR442970 dose regimen A
SAR442970 Dose Regimen B
EXPERIMENTALParticipants will receive SAR442970 dose regimen B
Placebo
PLACEBO COMPARATORParticipants will receive SAR442970-matching placebo
Interventions
Eligibility Criteria
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 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):
- 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 as a biologic agent used to treat UC or advanced small molecules used to treat UC
- History of inadequate response to, loss of response to or intolerance to treatment with ≥1 approved AT such as a biologic agent used to treat UC or advanced small molecules used to treat 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 Crohn's Disease (CD), indeterminate colitis or microscopic colitis
- Participants with fecal sample positive for culture/ova for aerobic pathogens or positive for Clostridium difficile B toxin in stools
- Participant with ostomy or ileoanal pouch, prior colectomy or anticipated colectomy during their participation in the study
- Participants with the following ongoing known complications of UC: fulminant disease, toxic megacolon or colonic dysplasia except for adenoma
- Participants with intestinal failure or short bowel syndrome requiring Total Parenteral Nutrition
- History of recurrent or recent serious infection within 4 weeks of screening, or infection(s) requiring hospitalization or treatment with IV anti-infectives within 30 days prior to baseline, or infections(s) requiring oral anti-infectives within 14 days prior to baseline, except as required as part of an anti-Tuberculosis (TB) regimen
- Known history of or suspected significant current immunosuppression.
- History or solid organ transplant or splenectomy
- History of moderate to severe congestive heart failure (New York Health Association Class III or IV), or recent cerebrovascular accident.
- History of demyelinating disease (including myelitis) or neurologic symptoms suggestive of demyelinating disease
- Participants with a history of malignancy or lymphoproliferative disease other than adequately treated localized carcinoma in situ of the cervix or nonmetastatic squamous cell carcinoma, or nonmetastatic basal cell carcinoma of the skin
- Participants with a diagnosis of inflammatory conditions other than UC (including but not limited to systemic lupus erythematosus, systemic sclerosis, myositis, rheumatoid arthritis, primary biliary cirrhosis, multiple sclerosis, Behcet's disease, sarcoidosis, etc.)
- History of Human Immunodeficiency Virus (HIV) infection or positive HIV serology at Screening
- History of Interstitial Lung Disease
- +7 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Sanofilead
Study Sites (67)
Investigational Site Number: 8400009
Escondido, California, 92025, United States
Investigational Site Number: 8400006
Lancaster, California, 93534, United States
Investigational Site Number: 8400025
Thousand Oaks, California, 91360, United States
Investigational Site Number: 8400024
Jacksonville, Florida, 32258, United States
Investigational Site Number: 8400030
Kissimmee, Florida, 347441, United States
Investigational Site Number: 8400003
Lighthouse PT, Florida, 33064, United States
Investigational Site Number: 8400001
Miami, Florida, 33134, United States
Investigational Site Number: 8400011
Miami, Florida, 33136, United States
Investigational Site Number: 8400010
Palmetto Bay, Florida, 33176, United States
Investigational Site Number: 8400019
Tampa, Florida, 33609, United States
Investigational Site Number: 8400018
Marietta, Georgia, 30060, United States
Investigational Site Number: 8400005
Iowa City, Iowa, 52242, United States
Investigational Site Number: 8400017
Boston, Massachusetts, 02115, United States
Investigational Site Number: 8400012
Wyoming, Michigan, 49519, United States
Investigational Site Number: 8400014
St Louis, Missouri, 63110, United States
Investigational Site Number: 8400021
New York, New York, 10029, United States
Investigational Site Number: 8400029
Queens Village, New York, 11428, United States
Investigational Site Number: 8400002
Chapel Hill, North Carolina, 27514, United States
Investigational Site Number: 8400013
Harrisburg, Pennsylvania, 17110, United States
Investigational Site Number: 8400023
Houston, Texas, 77030, United States
Investigational Site Number: 8400007
Ogden, Utah, 84405, United States
Investigational Site Number: 0360003
Brisbane, Queensland, 4101, Australia
Investigational Site Number: 0360001
Clayton, Victoria, 3168, Australia
Investigational Site Number: 1560004
Huizhou, Ghangdong, 516001, China
Investigational Site Number: 1560005
Guangzhou, Guangdong, 510655, China
Investigational Site Number: 1560002
Nanjing, Jiangsu, 210029, China
Investigational Site Number: 1560008
Suzhou, Jiangsu, 215006, China
Investigational Site Number: 1560003
Wuxi, Jiangsu, 214023, China
Investigational Site Number: 1560009
Shanghai, Shanghai Municipality, 200025, China
Investigational Site Number: 1560001
Hangzhou, 310016, China
Investigational Site Number: 1560007
Ningbo, 315010, China
Investigational Site Number: 2030001
Brno, JM, 61500, Czechia
Investigational Site Number: 2030002
Slaný, 27401, Czechia
Investigational Site Number: 2500002
Lille, 59037, France
Investigative Site: 2500006
Nice, 6200, France
Investigational Site Number: 2500005
Pierre-Bénite, 69495, France
Investigational Site Number: 2500001
Saint-Priest-en-Jarez, 42270, France
Investigational Site Number: 2500003
Toulouse, 31400, France
Investigational Site Number: 2500004
Vandœuvre-lès-Nancy, 54500, France
Investigational Site Number: 2760001
Minden, Northwest, 32423, Germany
Investigational Site Number: 2760005
Kiel, Schleswig-Holstein, 24105, Germany
Investigational Site Number: 2760003
Ulm, 89081, Germany
Investigational Site Number: 3480003
Budapest, 1066, Hungary
Investigational Site Number: 3480002
Budapest, 1088, Hungary
Investigational Site Number: 3480001
Vác, 2600, Hungary
Investigational Site Number: 3920002
Kashiwa, Chiba, 277-0871, Japan
Investigational Site Number: 3920006
Ōita, Oita Prefecture, 870-0033, Japan
Investigational Site Number: 3920005
Hamamatsu, 431-3192, Japan
Investigational Site Number: 3920003
Hirosaki, 036-8545, Japan
Investigational Site Number: 3920001
Morioka, 020-8505, Japan
Investigational Site Number: 3920004
Nishinomiya, 663-8501, Japan
Investigational Site Number: 4980001
Chisinau, 2025, Moldova
Investigational Site Number: 6160006
Wroclaw, Lower Silesian Voivodeship, 53-149, Poland
Investigational Site Number: 6160002
Bydgoszcz, 85-229, Poland
Investigational Site Number: 6160009
Chojnice, 89-600, Poland
Investigational Site Number: 6160007
Katowice, 40-748, Poland
Investigational Site Number: 6160005
Sopot, 81-756, Poland
Investigational Site Number: 6160008
Tychy, 43-100, Poland
Investigational Site Number: 6160004
Warsaw, 00-189, Poland
Investigational Site Number: 6160003
Warsaw, 04-501, Poland
Investigational Site Number: 6160001
Wroclaw, 52-210, Poland
Investigational Site Number: 7240001
Las Palmas de Gran Canaria, 35010, Spain
Investigational Site Number: 7240002
Madrid, 28046, Spain
Investigational Site Number: 8260002
Northwich, CHW, CW9 7LS, United Kingdom
Investigational Site Number: 8260003
Bury, BL9 7TD, United Kingdom
Investigational Site Number: 8260001
London, E11 1NR, United Kingdom
Investigational Site Number: 8260004
London, SE1 7EH, United Kingdom
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Trial Transparency email recommended (Toll free for US & Canada)
CONTACT
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 28, 2025
First Posted
May 16, 2025
Study Start
July 7, 2025
Primary Completion (Estimated)
December 17, 2026
Study Completion (Estimated)
October 17, 2029
Last Updated
April 23, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will share
Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org.