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Taking people in JapanPhase 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
Bunkyō City, Hamamatsu, Higashiharima, Kagoshima, Kashiwa, Kumamoto, Minatoku, Mitaka, Nagakute, Nishinomiya, Ōita, Osaka, Saga, Sapporo, Shimizu, Shinjuku-Ku, Sumida Tokyo, Tokyo, Yamanashi, and Yokohama, JapanSee the 25 sites
Phase
Phase 3

Where in Japan

  • Institute of Science Tokyo HospitalBunkyō City, JapanTaking people
  • Hamamatsu University HospitalHamamatsu, JapanTaking people
  • Matsuda HospitalHamamatsu, JapanTaking people
  • National Hospital Organization Mito Medical CenterHigashiharima, JapanTaking people
  • Kagoshima IBD Gastroenterology ClinicKagoshima, JapanTaking people
  • Tsujinaka Hospital KashiwanohaKashiwa, JapanTaking people
  • Kumamoto University HospitalKumamoto, JapanTaking people
  • Takano HospitalKumamoto, JapanTaking people
  • Kitasato University Kitasato Institute HospitalMinatoku, JapanTaking people
  • Kyorin University HospitalMitaka, JapanTaking people
  • Aichi Medical University HospitalNagakute, JapanTaking people
  • Hyogo Medical University HospitalNishinomiya, JapanTaking people
  • Oita Red Cross HospitalŌita, JapanTaking people
  • National Hospital Organization Osaka National HospitalOsaka, JapanTaking people
  • Osaka Metropolitan University HospitalOsaka, JapanTaking people
  • Saga University HospitalSaga, JapanTaking people
  • Hokkaido P.W.F.A.C. Sapporo-Kosei General HospitalSapporo, JapanTaking people
  • Sapporo Higashi Tokushukai HospitalSapporo, JapanTaking people
  • Sapporo Medical University HospitalSapporo, JapanTaking people
  • National Hospital Organization Shizuoka Medical CenterShimizu, JapanTaking people
  • Center Hospital of the National Center for Global Health and MedicineShinjuku-Ku, JapanTaking people
  • Tokyo Metropolitan Bokutoh HospitalSumida Tokyo, JapanTaking people
  • The Jikei University HospitalTokyo, JapanTaking people
  • Yamanashi Prefectural Central HospitalYamanashi, JapanTaking people
  • Yokohama City University Medical CenterYokohama, JapanTaking 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