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Taking people in ChinaPhase 3

Compares JNJ-78934804 with guselkumab in people with Crohn's disease

Tests JNJ-78934804 against guselkumab in adults with active Crohn's disease.

Plain-language title generated from the registry record
Registry title: A Study of JNJ-78934804 in Participants With Moderately to Severely Active Crohn's Disease

Key facts

Where
Beijing, Changsha, Changzhou, Chengdu, Chongqing, Foshan, Guangzhou, Hangzhou, Hefei, Huai'an, Lanzhou, Nanjing, Ningbo, Shanghai, Wenzhou, Wuhan, Wuxi, Xiamen, and Zhuzhou, ChinaSee the 20 sites
Phase
Phase 3

Where in China

  • Peking University Third HospitalBeijing, ChinaTaking people
  • The Second Xiangya Hospital of Central South UniversityChangsha, ChinaTaking people
  • Changzhou No 2 Peoples HospitalChangzhou, ChinaTaking people
  • West China Hospital Si Chuan UniversityChengdu, ChinaTaking people
  • Chongqing General HospitalChongqing, ChinaTaking people
  • The First People's Hospital of FoshanFoshan, ChinaTaking people
  • Sun Yat-sen University - The Sixth Affiliated Hospital Guangdong Gastrointestinal HospitalGuangzhou, ChinaTaking people
  • Sir Run Run Shaw Hospital Zhejiang University School of MedicineHangzhou, ChinaTaking people
  • The First Affiliated Hospital of Anhui Medical UniversityHefei, ChinaTaking people
  • Huai'an 1st HospitalHuai'an, ChinaTaking people
  • Lanzhou University Second HospitalLanzhou, ChinaTaking people
  • Jiangsu Province HospitalNanjing, ChinaTaking people
  • Ningbo Medical Center Lihuili HospitalNingbo, ChinaTaking people
  • Ruijin Hospital Shanghai Jiao Tong UniversityShanghai, ChinaTaking people
  • Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai, ChinaNo longer taking part
  • The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou, ChinaTaking people
  • The Central Hospital of WuhanWuhan, ChinaTaking people
  • Wuxi People's HospitalWuxi, ChinaTaking people
  • Zhongshan Hospital Xiamen UniversityXiamen, ChinaTaking people
  • Zhuzhou Central HospitalZhuzhou, ChinaTaking 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
NCT07577843EU 2026-525922-39-00
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 Crohn's disease (a long-term, progressive [worsens with time] and life-threatening disease of the intestine).Read full original descriptionShow less

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 Crohn's Disease

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 Crohn's disease (a long-term, progressive [worsens with time] and life-threatening disease of the intestine).

Inclusion: Have a diagnosis of Crohn's disease (CD) or fistulizing CD established greater than or equal to (>=) 12 weeks before screening including both endoscopic evidence and a histopathology report consistent with a diagnosis of CD; Have moderately to severely active CD based on crohn's disease activity index (CDAI) criteria defined as a baseline CDAI score >= 220 but less than or equal to (<=) 450 and either: a. Mean daily stool frequency (SF) count >= 4.0, based on the unweighted CDAI component of the number of liquid or very soft stools or b. Mean daily AP score >= 2.0, based on the unweighted CDAI component of abdominal pain (AP); Have moderately to severely active ileal and/or colonic CD as assessed by central review of the screening video ileocolonoscopy based on simple endoscopic score for crohn's disease (SES-CD) criteria; Have had an inadequate initial response, loss of response, or intolerance to previously approved systemic therapies.

Exclusion: Complications of CD such as symptomatic bowel strictures or stenoses, or any other manifestation that may require intestinal surgery while enrolled in the study; Has a history of short bowel syndrome, is missing greater than (>) 2 of the 5 ileocolonic segments, or has any other medical condition that could preclude or confound the ability to use efficacy assessment tools (such as CDAI) to assess response to study intervention; Diagnosis of indeterminate colitis, microscopic colitis, ischemic colitis, ulcerative colitis (UC) or clinical findings highly suggestive of UC; Presence of draining (that is, functioning) stoma or ostomy; Currently has or is suspected of having an abscess.

ClinicalTrials.gov NCT07577843 · EU CTIS 2026-525922-39-00