Tato stránka byla automaticky přeložena a přesnost překladu není zaručena. Podívejte se prosím na anglická verze pro zdrojový text.

Withdrawal Versus Continued TNF Inhibitor Monotherapy Treatment in Children With Inactive Juvenile Idiopathic Arthritis (The Treat-JIA)

9. listopadu 2026 aktualizováno: Pernille Helen Bøyesen, Oslo University Hospital

Treatment Strategies for Juvenile Idiopathic Arthritis Patients With Sustained Inactive Disease: A Phase 4, Multicentre, Randomised Trial Comparing Maintenance Versus Tapered TNF Alpha Inhibitor Monotherapy - the Treat-JIA Trial

The goal of this clinical trial is to learn whether children and adolescents with juvenile idiopathic arthritis (JIA) who have had inactive disease for a long time can safely discontinue treatment with a tumour necrosis factor inhibitor (TNF-inhibitor) monotherapy. The trial compares TNFi withdrawal with continued treatment at a stable dose. The main question it aims to answer is whether TNF-inhibitor withdrawal increases the risk of disease flare during 12 months of follow-up compared with continued treatment. The trial will also assess time to flare, time to regain inactive disease after a flare, changes in disease activity, and the overall safety of both treatment strategies during the same period. Ninety patients aged 2 to 17 years with non-systemic JIA will take part. All study participants will have had inactive disease for at least 12 months while on TNF-inhibitor monotherapy with adalimumab, etanercept or golimumab. Participants will be randomly assigned either to continue their current TNF-inhibitor treatment at a stable dose or to TNF-inhibitor withdrawal. The baseline and follow-up visits up to 12 months will be performed at three hospitals in Norway and include disease activity assessment through joint examination and the Juvenile Arthritis Disease Activity Score (JADAS-27), and where side effects and other health problems are recorded. A flare is defined as a clinically significant increase in disease activity together with at least one active joint, or as agreement between the treating physician and the participant or parents that a flare has occurred.

Přehled studie

Typ studie

Intervenční

Zápis (Odhadovaný)

90

Fáze

  • Fáze 4

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

  • Jméno: Pernille Bøyesen, MD PhD
  • Telefonní číslo: +4723070000
  • E-mail: boyper@ous-hf.no

Studijní záloha kontaktů

Studijní místa

      • Drammen, Norsko
        • Drammen Hospital
        • Kontakt:
      • Kristiansand, Norsko
        • Hospital of Southern Norway Hospital Trust
        • Kontakt:
      • Oslo, Norsko
        • Oslo University Hospital
        • Kontakt:

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

2 roky až 17 let (Dítě)

Přijímá zdravé dobrovolníky

Ne

Pohlaví způsobilá ke studiu

Všechno

Popis

Inclusion Criteria:

  1. Participant must be 2-<18 years of age at the time of signing the informed consent.
  2. Fulfilment of the International League of Associations for Rheumatology (ILAR) classification criteria for non-systemic Juvenile Idiopathic Arthritis (JIA).
  3. Inactive disease for ≥12 months documented at a minimum of 2 consecutive visits and documented inactive disease according to Wallace criteria at inclusion, and no active uveitis for ≥24 months.
  4. Stable treatment Tumor Necrosis Factor inhibitor (TNFi) monotherapy for ≥ 12 months. Weight adjustments permitted.
  5. Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF).

Exclusion Criteria:

  1. Chronic widespread pain syndrome
  2. Major comorbidity
  3. Use of oral, intra-articular, intramuscular or intravenous corticosteroids due to JIA less than 12 months prior to randomization.

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Žádné (otevřený štítek)

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Aktivní komparátor: Stable TNF-inhibitor monotherapy

Continued TNF-inhibitor therapy at a stable dose. This can be adalimumab, etanercept or golimumab.

Gradual withdrawal of the medication

Gradual withdrawal of the medication

Gradual withdrawal of the medication

Continued stable adalimumab monotherapy

Continued stable etanercept monotherapy

Continued stable golimumab monotherapy

Experimentální: TNF-inhibitor withdrawal

Doubled treatment interval of the TNF-inhibitor therapy for 4 months, then subsequent withdraw of the TNF-inhibitor therapy.

Gradual withdrawal of the medication

Gradual withdrawal of the medication

Gradual withdrawal of the medication

Continued stable adalimumab monotherapy

Continued stable etanercept monotherapy

Continued stable golimumab monotherapy

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Proportion of disease flare
Časové okno: 4, 8 and 12 months

Disease flare is defined as a combination of: A clinical significant increase in Juvenile Arthritis Disease Activity Score 27 (JADAS-27*) ≥1.7 from baseline AND active joints ≥1 (swollen, or tender + limited range of motion) OR consensus between treating physician and participant/parents that a clinically significant flare has occurred with need of intensification of antirheumatic treatment.

4, 8 and 12 months

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Time to disease flare
Časové okno: From enrolment to 12 months follow-up

Time to disease flare is defined as the time from baseline to the time of disease flare. Disease flare is defined as a combination of: A clinical significant increase in Juvenile Arthritis Disease Activity Score 27 (JADAS-27*) ≥1.7 from baseline AND active joints ≥1 (swollen, or tender + limited range of motion) OR consensus between treating physician and participant/parents that a clinically significant flare has occurred with need of intensification of antirheumatic treatment.

From enrolment to 12 months follow-up
Time to regain inactive disease after flare
Časové okno: From enrolment to 12 months follow-up

Time to regain inactive disease after flare is defined as the time from disease flare to the time of inactive disease.

Disease flare is defined as a combination of: A clinical significant increase in Juvenile Arthritis Disease Activity Score 27 (JADAS-27*) ≥1.7 from baseline AND active joints ≥1 (swollen, or tender + limited range of motion) OR consensus between treating physician and participant/parents that a clinically significant flare has occurred with need of intensification of antirheumatic treatment.

Inactive disease is defined according to the Wallace definition: No active arthritis, no active uveitis, no morning stiffness >15 minutes, no systemic features (fever/rash/serositis/splenomegaly/lymphadenopathy due to JIA), a physician global assessment of disease activity 0 on a 0-100 scale) and normalization of C-reactive protien (CRP) and ESR.

From enrolment to 12 months follow-up
Incidence of adverse events, serious adverse events and suspected unexpected serious adverse reactions
Časové okno: From enrolment to 12 months follow-up

Assessment of AE, serious AE and suspected unexpected serious adverse reactions

From enrolment to 12 months follow-up
Physician global assessment of disease activity
Časové okno: From enrolment to 12 months follow-up

Physician global assessment of disease activity is measured on a 0-100 mm visual analogue scale (VAS) where higher scores indicate more severe disease.

From enrolment to 12 months follow-up
Patient's/parent's global assessment of well-being
Časové okno: From enrolment to 12 months follow-up

Patient's/parent's global assessment of well-being will be assessed on a 0-100 mm visual analogue scale where higher scores indicate less well-being.

From enrolment to 12 months follow-up
Active joint count
Časové okno: From enrolment to 12 months follow-up

68 joints will be evaluated for swelling, 75 joints/joint areas will be evaluated for tenderness and 70 joints/joint areas will be examined for limitation of motion. Range 0-71 with higher scores indicating more joints with arthritis.

From enrolment to 12 months follow-up
Erythrocyte sedimentation rate (ESR)
Časové okno: From enrolment to 12 months follow-up

Erythrocyte sedimentation rate (ESR) mm/hr

From enrolment to 12 months follow-up
Childhood Health Assessment Questionnaire (CHAQ)
Časové okno: From enrolment to 12 months follow-up

Childhood Health Assessment Questionnaire (CHAQ) assesses physical function, ranges 0-3 where higher scores indicate better physical function

From enrolment to 12 months follow-up

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Vyšetřovatelé

  • Vrchní vyšetřovatel: Pernille Bøyesen, Oslo University Hospital

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Odhadovaný)

11. listopadu 2026

Primární dokončení (Odhadovaný)

11. listopadu 2029

Dokončení studie (Odhadovaný)

11. listopadu 2030

Termíny zápisu do studia

První předloženo

23. října 2026

První předloženo, které splnilo kritéria kontroly kvality

23. října 2026

První zveřejněno (Aktuální)

29. října 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

12. listopadu 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

9. listopadu 2026

Naposledy ověřeno

1. listopadu 2026

Více informací

Termíny související s touto studií

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

ANO

Popis plánu IPD

Anonymised individual participant data underlying the results reported in the primary publication may be made available to qualified researchers upon reasonable request

Časový rámec sdílení IPD

The study protocol and statistical analysis plan will be published as supplementary material to the primary publication.

Kritéria přístupu pro sdílení IPD

Anonymised individual participant data underlying the results reported in the primary publication may be made available to qualified researchers upon reasonable request, following independent assessment of the scientific merit of a predefined research question. Data will be shared through a secure system after approval by the sponsor (Oslo University Hospital) and relevant ethics and data protection authorities, and after a data access agreement has been signed, in accordance with GDPR and Norwegian legislation. The study protocol and statistical analysis plan will be published as supplementary material to the primary publication.

Typ podpůrných informací pro sdílení IPD

  • PROTOKOL STUDY
  • MÍZA

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ano

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

produkt vyrobený a vyvážený z USA

Ano

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .

Předplatit