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

2026年11月9日 更新者: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.

調査の概要

状態

まだ募集していません

条件

介入・治療

研究の種類

介入

入学 (推定)

90

段階

  • フェーズ 4

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

  • 名前:Pernille Bøyesen, MD PhD
  • 電話番号:+4723070000
  • メール:boyper@ous-hf.no

研究連絡先のバックアップ

研究場所

      • Drammen、ノルウェー
        • Drammen Hospital
        • コンタクト:
      • Kristiansand、ノルウェー
        • Hospital of Southern Norway Hospital Trust
        • コンタクト:
      • Oslo、ノルウェー
        • Oslo University Hospital
        • コンタクト:

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

2年~17年 (子)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

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.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
アクティブコンパレータ: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

実験的: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

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Proportion of disease flare
時間枠: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

二次結果の測定

結果測定
メジャーの説明
時間枠
Time to disease flare
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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)
時間枠: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)
時間枠: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

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

協力者

捜査官

  • 主任研究者:Pernille Bøyesen、Oslo University Hospital

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年11月11日

一次修了 (推定)

2029年11月11日

研究の完了 (推定)

2030年11月11日

試験登録日

最初に提出

2026年10月23日

QC基準を満たした最初の提出物

2026年10月23日

最初の投稿 (実際)

2026年10月29日

学習記録の更新

投稿された最後の更新 (実際)

2026年11月12日

QC基準を満たした最後の更新が送信されました

2026年11月9日

最終確認日

2026年11月1日

詳しくは

本研究に関する用語

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

はい

IPD プランの説明

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

IPD 共有時間枠

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

IPD 共有アクセス基準

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.

IPD 共有サポート情報タイプ

  • STUDY_PROTOCOL
  • SAP

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

はい

米国FDA規制機器製品の研究

いいえ

米国で製造され、米国から輸出された製品。

はい

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。