A study of JNJ-78934804 in participants with moderately to severely active ulcerative colitis (DUET ENCORE-UC)

A phase 3 randomized, double-blind, and active controlled, multi-center study to evaluate the efficacy and safety of JNJ-78934804 in participants with moderately to severely active ulcerative colitis

Registry ID
ISRCTN15730771
Source registry
ISRCTN
Status
Recruiting
Phase
PHASE3
Study type
INTERVENTIONAL
Sponsor
Janssen-Cilag International N.V.
Enrollment
644
Start date
2026-05-28
Completion date
2030-10-16
Last update
2026-08-17

Conditions

Summary

Moderately to Severely Active Ulcerative Colitis

Detailed description

Experimental: JNJ-78934804 Drug: JNJ-78934804 (guselkumab and golimumab) will be administered subcutaneously. Participants will receive JNJ-78934804 induction dose at Weeks 0, 4, and 8 followed by JNJ-78934804 maintenance dose, once every 4 weeks (q4w) starting at Week 12. All participants who meet the rescue criteria will receive JNJ-78934804 induction dose at Weeks 16, 20, and 24 followed by JNJ-78934804 maintenance dose q4w starting at Week 28. Participants who complete double-blind (DB) treatment phase (Week 48) and benefit from continued study intervention in the opinion of the investigator will have the opportunity to enter the long term extension (LTE) phase. Active Comparator: Guselkumab Drug: Guselkumab will be administered subcutaneously. Participants with moderately to severely active UC will receive guselkumab induction dose at Weeks 0, 4, and 8 followed by guselkumab maintenance dose q4w starting at Week 12. All participants who meet the rescue criteria will receive JNJ-78934804 induction dose at Weeks 16, 20, and 24 followed by JNJ-78934804 maintenance dose q4w starting at Week 28. Participants who complete DB treatment phase (Week 48) and benefit from continued study intervention in the opinion of the investigator will have the opportunity to enter the LTE phase.

Interventions

Inclusion criteria

1. Diagnosis of ulcerative colitis (UC) established at least 12 weeks before screening including both endoscopic evidence and a histopathology report consistent with a diagnosis of UC. 2. Moderately to severely active UC defined as baseline (Week 0) modified Mayo score of 5 to 9, inclusive, using the Mayo endoscopy subscore obtained during central review of the screening video endoscopy 3. An endoscopy subscore >=2 as obtained during central review of the screening video endoscopy 4. Have had an inadequate initial response, loss of response, or intolerance to previous approved systemic therapies

Exclusion criteria

1. Isolated proctitis (UC limited to the rectum only or to less than [<] 20 centimeter [cm] from the anal verge) as determined during central review of the screening video endoscopy OR Has a diagnosis of isolated proctitis 2. Diagnosis of indeterminate colitis, microscopic colitis, ischemic colitis, Crohn’s colitis or any findings suggestive of CD 3. Has a history of or ongoing chronic or recurrent infectious disease 4. Has previously demonstrated inadequate initial response, loss of response, allergy, hypersensitivity or intolerance to guselkumab or to golimumab 5. Is a participant who is pregnant, breastfeeding, or planning to become pregnant, or plans to father a child, while enrolled in this study or within 6 months after the last dose of study intervention

Locations

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