NCT07184996 · Sanofi
An Induction Study to Investigate the Efficacy and Safety of Duvakitug in Participants With Moderately to Severely Active Ulcerative Colitis
(SUNSCAPE-1)
What this study is about
This is a multinational, conducted at multiple hospitals, randomly assigned, where neither patients nor doctors know which treatment is given, compared against an inactive treatment, Phase 3 induction study to evaluate the effectiveness and safety of duvakitug in participants with moderately to severely active Ulcerative Colitis (UC).
View original scientific description
This is a multinational, multicenter, randomized, double-blind, placebo-controlled, Phase 3 induction study to evaluate the efficacy and safety of duvakitug in participants with moderately to severely active Ulcerative Colitis (UC). Study details include: The study duration may be up to 35 weeks with: * Screening period * 12-week Sub-Study 1 (Single-Arm Open-Label Feeder Induction) or Sub-Study 2 (Pivotal Induction) * 12-week Sub-Study 3 (Extended Induction for non-responders) * 45 days follow-up visit for participants who do not enroll into the maintenance study (EFC18359) The treatment duration will be up to 12 weeks in each sub-study. The number of scheduled on-site visits will be up to 8 for the Sub-Study 1 and Sub Study 2 or a maximum of 15 visits for participants completing extended induction.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Participants aged ≥18 and ≤80 years of age at Screening. Where permitted locally, participants 16 to \<18 years of age who meet the definition of Tanner Stage 5 for development
- Confirmed diagnosis of moderately to severely active UC for at least 3 months prior to Baseline
- Demonstrated inadequate response, have shown loss of response or intolerance to conventional therapies or advanced therapies
Exclusion criteria
- Participants with Crohn's Disease (CD), indeterminate colitis
- Current diagnosis of Ulcerative Proctitis
- Participants with surgical bowel resection within the past 3 months prior to Baseline, or a history of \>3 bowel resections
- Prior or current high-grade gastrointestinal (GI) dysplasia
- Participants on treatment with but not on stable doses of conventional therapies prior to baseline
- Participants with prohibited medications or therapies prior to baseline
- Participants with previous exposure to anti-TL1A investigational therapy The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.
Where
- Peoria, Arizona
- Scottsdale, Arizona
- Tucson, Arizona
- Little Rock, Arkansas
- Arcadia, California
- Canoga Park, California
- Coronado, California
- Folsom, California
- Los Angeles, California
- Murrieta, California
- San Diego, California
- Santa Maria, California
And 71 more locations — see the full list below.
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Apr 24, 2026 · Source of record for eligibility and locations