A Maintenance Study to Investigate the Efficacy and Safety of Duvakitug in Participants With Moderately to Severely Active Ulcerative Colitis

Condition(s) studied

Investigational drug(s) / intervention(s)

Duvakitug: Pharmaceutical form: Injection solution Route of administration: SC injection

Placebo: Pharmaceutical form:Injection solution-Route of administration:SC injection

Study summary

This is a multicenter, randomized, double-blind, placebo-controlled Phase 3 maintenance 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 286 weeks including:

* 40-week Pivotal Maintenance Sub-Study
* 240-week Open-Label Extension (OLE) Sub-Study
* 45-day Follow-up Visit Note: For the participants who do not enroll into OLE Sub-Study, the duration will be up to 46 weeks, including the 40-week maintenance period and a 45-day follow-up visit.

The treatment duration may be up to 280 weeks including:

* 40 weeks in Pivotal Maintenance Sub-Study
* 240 weeks in OLE Sub-Study

The total number of on-site visit will be up to 32:

* 21 visits in the Pivotal Maintenance Sub-Study.
* 11 visits in the OLE Sub-Study.

Eligibility

Primary outcome measure(s)

• Pivotal Maintenance Sub-Study Cohort 1: Proportion of participants achieving clinical remission by modified Mayo Score (mMS). — Week 40
  Mayo Score is a composite index designed to measure UC disease activity. The score ranges from 0 to 9 with higher scores indicating greater disease severity. Clinical remission is defined as mMS score of 0 to 2, including SFS of 0 or 1, RBS of 0, and mMES of 0 or 1 (score of 1 modified to exclude friability)

Trial sites (55)

+ 15 more sites — see the full list on the official registry below.

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