Clinical trial Recruiting at 53 sites Phase 3 Interventional Ages 3 and up

Long-term evaluation of guselkumab for children with inflammatory bowel disease and juvenile arthritis

Official title: CNTO1959ISD3001: A Phase 3, Multicenter, Open-label, Basket, Long-term Extension Study to Evaluate the Safety of Guselkumab in Pediatric Participants With Crohn's Disease, Ulcerative Colitis, or Juvenile Psoriatic Arthritis

Run by Janssen Research & Development, LLC · NCT06663332 · Data updated 2026-11-12

This study tests how safe and effective the medication guselkumab is for children with inflammatory bowel disease or juvenile arthritis over a long period of time.

More Crohn's Disease trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages3 Years and up
SexAll
Enrollment196 (estimated)
SponsorJanssen Research & Development, LLC
Industry-sponsored
Drugs / interventionsguselkumab
Locations53 sites (Atlanta, Georgia and 52 other locations)
StatusRecruiting
StartedOctober 29, 2024
Main results expectedDecember 12, 2031
Study endsFebruary 25, 2032
Registry record updatedNovember 3, 2026
Trial IDNCT06663332 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are pediatric patients who have completed prior treatment with guselkumab and have shown a positive response to the therapy.

Probably not a fit

Patients who have not previously benefited from guselkumab therapy or those who have not completed the primary study will not receive benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the long-term safety of guselkumab, a medication administered subcutaneously, in pediatric patients suffering from moderately to severely active ulcerative colitis, Crohn's disease, or juvenile psoriatic arthritis. Participants must have previously completed a primary study involving guselkumab and demonstrated benefit from the therapy. The study aims to gather data on the ongoing effects and safety profile of the treatment over an extended period.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the long-term safety and efficacy of guselkumab for treating serious inflammatory conditions in children.

How similar studies have gone: Other studies have shown promising results with guselkumab in adult populations, but this specific long-term evaluation in pediatric patients is novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Must have completed the dosing planned in the primary pediatric guselkumab study
* Must have received benefit from continued guselkumab therapy in the opinion of the investigator
* Before enrollment, a participant must be either: (a) Not of childbearing potential, OR (b) Of childbearing potential and not sexually active, practicing abstinence or a highly effective method of contraception and agrees to remain on a highly effective method while receiving study intervention and until 12 weeks after the last dose - the end of relevant systemic exposure
* Parent(s) (or their legally acceptable representative) must sign an informed consent form (ICF) indicating that he or she understands the purpose of, and procedures required for, the study and is willing to allow the child to participate in the study. Assent is required from participants who are capable of understanding the nature of the study, typically those aged 7 years and older, to ensure their willingness to participate. An adolescent who provides assent will have the opportunity to sign an adult ICF upon reaching the age of majority, thereby affirming their understanding of the study's purpose and procedures, as well as their willingness to participate.

Exclusion Criteria:

* Participant is greater than or equal to (\>=) 18 years of age and resides in a country where 2 years have elapsed post marketing authorization for the respective adult indication
* Participant is \<18 years of age and resides in a county where 2 years have elapsed post marketing authorization for the respective pediatric indication
* Are pregnant, nursing, or planning pregnancy or fathering a child
* Have taken any disallowed therapies before the planned first long-term extension (LTE) dose of study intervention
* Employee of the investigator or study site, with direct involvement in the proposed study or other studies under the direction of that investigator or study site, as well as family members of the employees or the investigator
* Any condition for which, in the opinion of the investigator, participation would not be in the best interest of the participant or that could prevent, limit, or confound the protocol-specified assessments

Where it's running

  • Emory University
    Atlanta, Georgia, United States
    Recruiting
  • Children's Center for Digestive Healthcare
    Atlanta, Georgia, United States
    Recruiting
  • Riley Hospital for Children
    Indianapolis, Indiana, United States
    Recruiting
  • Cincinnati Children's Hospital Medical Center
    Cincinnati, Ohio, United States
    Recruiting
  • Cook Childrens Medical Center
    Fort Worth, Texas, United States
    Recruiting
  • University of Utah
    Salt Lake City, Utah, United States
    Recruiting
Show 44 more locations
  • Instituto Caici
    Rosario, Argentina
    Recruiting
  • The Kids Research Institute Australia on behalf of the Centre for Child Health Research
    Nedlands, Australia
    Recruiting
  • Mater Hospital Brisbane Inflammatory Bowel Diseases
    South Brisbane, Australia
    Recruiting
  • The Children's Hospital at Westmead
    Westmead, Australia
    Recruiting
  • UZ Brussel
    Jette, Belgium
    Recruiting
  • Universitair Ziekenhuis Leuven
    Leuven, Belgium
    Recruiting
  • Hospital das Clinicas - UFG
    Goiânia, Brazil
    Recruiting
  • INTEGRAL Pesquisa e Ensino
    Votuporanga, Brazil
    Recruiting
  • Capital Center For Children's health Capital Medical University
    Beijing, China
    Recruiting
  • Changzhou No 2 Peoples Hospital
    Changzhou, China
    Recruiting
  • The Childrens Hospital Zhejiang University School Of Medicine
    Hangzhou, China
    Recruiting
  • Sir Run Run Shaw Hospital Zhejiang University School of Medicine
    Hangzhou, China
    Recruiting
  • Ruijin Hospital Shanghai Jiao Tong University
    Shanghai, China
    Recruiting
  • Shengjing Hospital Of China Medical University
    Shenyang, China
    Recruiting
  • Hospital Center University De Lille
    Lille, France
    Recruiting
  • Schon Klinik Hamburg Eilbek
    Hamburg, Germany
    Recruiting
  • Asklepios Klinik Sankt Augustin
    Sankt Augustin, Germany
    Recruiting
  • Hadassah Ein-Qarem Medical Center
    Jerusalem, Israel
    Recruiting
  • ASST Papa Giovanni XXIII Bergamo
    Bergamo, Italy
    Recruiting
  • Azienda USL di Bologna - Ospedale Maggiore
    Bologna, Italy
    Recruiting
  • IRCCS Ospedale Pediatrico Bambino Gesu
    Roma, Italy
    Recruiting
  • Casa Sollievo Della Sofferenza IRCCS
    San Giovanni Rotondo, Italy
    Recruiting
  • IRCCS Materno Infantile Burlo Garofolo
    Trieste, Italy
    Recruiting
  • Tokyo Metropolitan Children's Medical Center
    Fuchū, Japan
    Recruiting
  • Kanazawa University Hospital
    Kanazawa, Japan
    Recruiting
  • Kobe University Hospital
    Kobe, Japan
    Recruiting
  • Japanese Red Cross Kumamoto Hospital
    Kumamoto, Japan
    Recruiting
  • Shinshu University Hospital
    Matsumoto, Japan
    Recruiting
  • Saga University Hospital
    Saga, Japan
    Recruiting
  • Yokohama City University Medical Center
    Yokohama, Japan
    Recruiting
  • Akershus Universitetssykehus
    Akershus, Norway
    Recruiting
  • Korczowski Bartosz Gabinet Lekarski
    Rzeszów, Poland
    Recruiting
  • Centrum Zdrowia Dziecka i Rodziny im Jana Pawla II w Sosnowcu Sp z o o
    Sosnowiec, Poland
    Recruiting
  • Medical Network
    Warsaw, Poland
    Recruiting
  • Instytut Pomnik Centrum Zdrowia Dziecka
    Warsaw, Poland
    Recruiting
  • Uls Braga - Hosp. Braga
    Braga, Portugal
    Recruiting
  • Uls Sao Joao - Hosp. Sao Joao
    Porto, Portugal
    Recruiting
  • Severance Hospital Yonsei University Health System
    Seoul, South Korea
    Recruiting
  • Samsung Medical Center
    Seoul, South Korea
    Recruiting
  • Hosp. Clinico Univ. de Santiago
    Santiago de Compostela, Spain
    Recruiting
  • Hosp. Univ. I Politecni La Fe
    Valencia, Spain
    Recruiting
  • Gazi University Medical Faculty
    Ankara, Turkey (Türkiye)
    Recruiting
  • Umraniye Training and Research Hospital
    Istanbul, Turkey (Türkiye)
    Recruiting
  • Kocaeli Universitesi Hastanesi
    Kocaeli, Turkey (Türkiye)
    Recruiting

+3 more sites. See ClinicalTrials.gov for the full list.

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.