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Taking people in BrazilPhase 3

Compares JNJ-78934804 with guselkumab in ulcerative colitis

Tests JNJ-78934804 against guselkumab in adults with moderately to severely active ulcerative colitis.

Plain-language title generated from the registry record
Registry title: A Study of JNJ-78934804 in Participants With Moderately to Severely Active Ulcerative Colitis

Key facts

Where
Botucatu, Curitiba, Jaú, Natal, Niterói, Porto Alegre, Ribeirão Preto, Santo André, São Paulo, and Votuporanga, BrazilSee the 13 sites
Phase
Phase 3

Where in Brazil

  • Unesp - Faculdade de Medicina Da Universidade Estadual Paulista - Campus BotucatuBotucatu, BrazilTaking people
  • CDC - Centro Digestivo de CuritibaCuritiba, BrazilTaking people
  • CECIP Jau - Centro de Estudos Clínicos do Interior Paulista LtdaJaú, BrazilTaking people
  • Liga Norte Riograndense Contra o CancerNatal, BrazilTaking people
  • Complexo Hospitalar de NiteroiNiterói, BrazilTaking people
  • Hospital de Clinicas de Porto AlegrePorto Alegre, BrazilTaking people
  • Hospital Ernesto DornellesPorto Alegre, BrazilTaking people
  • Hospital das Clinicas da Faculdade de Medicina de Ribeirao PretoRibeirão Preto, BrazilTaking people
  • Pesquisare SaudeSanto André, BrazilTaking people
  • BR TrialsSão Paulo, BrazilTaking people
  • Rocco And Nazato Servicos Medicos LtdaSão Paulo, BrazilTaking people
  • Solare TrialsSão Paulo, BrazilTaking people
  • Integral Pesquisa e EnsinoVotuporanga, BrazilTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
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Trial details

Who runs it
Janssen Research & Development, LLC
Trial code
NCT07577856EU 2026-525923-26-00
Record updated
3 November 2026
Original description
The purpose of this study is to assess how well JNJ-78934804 works (efficacy) and how safe it is (safety) as compared to guselkumab at Week 48 in participants with moderately to severely active ulcerative colitis (UC, a chronic disease of the large intestine in which the lining of the colon becomes inflamed and develops ulcers).Read full original descriptionShow less

78934804UCO3001: A Phase 3 Randomized, Double-blind, and Active Controlled, Multicenter Study to Evaluate the Efficacy and Safety of JNJ-78934804 in Participants With Moderately to Severely Active Ulcerative Colitis

The purpose of this study is to assess how well JNJ-78934804 works (efficacy) and how safe it is (safety) as compared to guselkumab at Week 48 in participants with moderately to severely active ulcerative colitis (UC, a chronic disease of the large intestine in which the lining of the colon becomes inflamed and develops ulcers).

Inclusion: 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; 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; An endoscopy subscore >=2 as obtained during central review of the screening video endoscopy; Have had an inadequate initial response, loss of response, or intolerance to previous approved systemic therapies.

Exclusion: Has previously demonstrated inadequate initial response, loss of response, allergy, hypersensitivity or intolerance to guselkumab or to golimumab; Has a history of or ongoing chronic or recurrent infectious disease; 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; Diagnosis of indeterminate colitis, microscopic colitis, ischemic colitis, Crohn's colitis or any findings suggestive of CD; 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.

ClinicalTrials.gov NCT07577856 · EU CTIS 2026-525923-26-00