A Phase 3 interventional study of Guselkumab in Crohns Disease, Colitis, Ulcerative and Arthritis, Psoriatic, sponsored by Janssen Research & Development, LLC. Recruiting at 53 sites in 18 countries. Open to participants aged 3 Years and older. Per ClinicalTrials.gov, last updated 2026-11-03.
Sponsored by Janssen Research & Development, LLC (part of Johnson & Johnson) · Phase 3, Interventional, and Other
The purpose of this study is to evaluate long-term safety of subcutaneous guselkumab in pediatric participants with moderately to severely active ulcerative colitis, or moderately to severely active Crohn's disease, or juvenile psoriatic arthritis (jPsA).
1,992 studies on the registry are indexed under Crohn Disease; 478 are open to participants now.
This study's planned enrollment of 196 is above the median of 67 across 1,260 interventional studies indexed under Crohn Disease.
Browse Crohn Disease studies →Janssen Research & Development, LLC is the lead sponsor of 932 studies on the registry; 76 are open to participants now.
Of its 285 completed or terminated interventional studies of FDA-regulated products, 136 (48%) have results posted.
Counted across the registry records on this site, refreshed daily.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants treated with guselkumab in one of the three primary studies (CNTO1959PUC3001 \[NCT06260163\], CNTO1959PBCRD3007 \[NCT05923073\], CNTO1275JPA3001 \[NCT05083182\]) will be enrolled in this long-term extension (LTE) study, if in investigator's opinion, participant will benefit from continued guselkumab therapy and will have continued access to guselkumab (every 8 weeks \[q8w\]). Participants coming from double-blinded arm of primary studies CNTO1959PUC3001 and CNTO1959PBCRD3007 will be assigned to q8w dosing. Based on investigator's discretion and participant's clinical status, they have option to switch to q4w once during LTE study prior to unblinding of primary study assignment. Once the primary study is unblinded, dosing frequency may be adjusted to match what the participant had received before enrolling in LTE study. Participants coming from study CNTO1275JPA3001 will continue same dosing regimen from primary study (q8w) and cannot change their dosing interval during LTE study.
Drug: Guselkumab
Participants treated with guselkumab in one of the three primary studies (CNTO1959PUC3001 \[NCT06260163\], CNTO1959PBCRD3007 \[NCT05923073\], CNTO1275JPA3001 \[NCT05083182\]) will be enrolled in this LTE study, if in the investigator's opinion, the participant will benefit from continued guselkumab therapy. Participants will have continued access to guselkumab (q4w). Participants coming from the open-label arm of the primary studies CNTO1959PUC3001 and CNTO1959PBCRD3007 will be assigned to q4w dosing. No dose adjustments are permitted. Participants coming from the jPsA primary study (CNTO1275JPA3001) will continue the same dosing regimen from the primary study (q4w) and cannot change their dosing interval during the LTE study.
Drug: Guselkumab
Guselkumab will be administered as subcutaneous injection.
Also known as: CNTO1959
Number of Participants with Treatment-Emergent Adverse Events as Assessment of Safety
Treatment-emergent adverse events will be reported to analyze the long-term safety of guselkumab in pediatric participants.
Time frame: Up to 6 years and 9 months
Plan to share: Yes — The data sharing policy of Johnson \& Johnson Innovative Medicine is available at innovativemedicine.jnj.com/our-innovation/clinical-trials/transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu
Data sharing details ↗ · innovativemedicine.jnj.com
No publications or documents are linked to this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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Studies of the drug tested here: Guselkumab
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