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T2Tアプローチによる関節リウマチ患者の治療決定を導く超音波 (US-RA-T2T)

2026年11月3日 更新者:Italian Society for Rheumatology

Population

Patients with a diagnosis of Rheumatoid Arthritis (RA), moderate or high clinical disease activity (CDAI>10) despite conventional synthetic (cs)DMARD(s) or bs-ts-DMARDs therapy for ≥3 months, and a maximum of 2 swollen joints (out of 44 joints)

Study design

Randomised multicentre, parallel-arm clinical study

Primary objective

Non-inferiority of the experimental arm (i.e. clinical therapy together with ultrasound guided treatment decision) in comparison to the control arm (clinically guided decision) concerning the proportion of patients reaching low disease activity (CDAI ≤10) and a minimal clinical important improvement (MCII: improvement of ≥6 points if starting from moderate disease activity, any case starting from high disease activity and achieving low disease activity) or remission according to ACR/EULAR index-based remission criteria (CDAI ≤2.8/Boolean remission) at week 24.

Intervention

This is a randomised multicentre, national, parallel-arm clinical study. Patients with a diagnosis of RA, moderate or high clinical disease activity (CDAI>10) despite conventional synthetic (cs)DMARD(s) or b-tsDMARDs therapy for ≥3 months, and a maximum of 2 swollen joints (out of 44 joints) will be included and randomized to one of the following two strategic arms:

  1. Clinical decision strategy: All patients receive a new course of b-ts-DMARDs, with or without concomitant cDMARD. If a CDAI ≤10 is not achieved after 12 weeks, patients are switched to a bDMARD or tsDMARD. The decision on which b/tsDMARD to use at week 12 is at the discretion of the investigator.
  2. Clinical plus ultrasound-based decision strategy. All patients in this group will be evaluated by ultrasound at 44 joints. In case of clinically-verified plus ultrasound verified inflammation, patients will receive a new b-ts-DMARD while continuing or not background csDMARD(s) therapy. If a CDAI ≤10 is not achieved after 12 weeks, patients are again evaluated by ultrasound at 44 joints. In case clinically-verified plus ultrasound-verified inflammation is present, patients are switched to a bDMARD or tsDMARD. The decision on which b/tsDMARD to use is at the discretion of the investigator. In case clinically-verified plus ultrasound-verified inflammation is absent, patients receive step-up pain therapy while background treatment will be continued.

Sample size

158 patients

Time plan

  • Total duration of the study: 72 months
  • Active phase for each patient: 48 weeks (24 weeks for the interventional treatment strategy and 24 weeks for follow-up visit)
  • Recruitment: 60 months

調査の概要

研究の種類

介入

入学 (推定)

158

段階

  • 適用できない

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

研究場所

    • Bolzano
      • Bruneck、Bolzano、イタリア、39031
        • 募集
        • Azienda Sanitaria dell'Alto Adige
        • 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

18年~84年 (大人、高齢者)

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. Classification of RA according to the ACR-EULAR 2010 criteria
  2. Age of the patients: 18 to 84 years
  3. Patients with moderate or high disease activity according to CDAI (>10)
  4. Maximum of 2 clinically swollen joints out of a 44-joint count
  5. Current stable treatment with a single csDMARD or bDMARD or tsDMARD for at least 3 months
  6. No glucocorticoid therapy or stable glucocorticoid dose for at least 4 weeks and at a maximum dose of 5 mg/day prednisone equivalent.
  7. No corticosteroid intraarticular injection within 4 weeks
  8. Stable or absent dose of NSAIDs for at least 1 week
  9. Patients able and willing to give written informed consent and compliant with the requirements of the study protocol

Exclusion Criteria:

  1. Complete (clinically evident) destruction of any joint to be investigated by ultrasound as judged by the physician
  2. Current RA-related vasculitis or other active systemic (i.e. extraarticular) RA-manifestation except for rheumatoid nodules, which in the opinion of the investigator would expose the study subject to a high risk of morbidity or mortality
  3. Initial arthritis manifestations before the age of 18 years
  4. Planned surgery within the study period for any of the joints investigated either clinically or by sonography
  5. Current severe medical illness requiring hospitalization
  6. Active infection or active malignancy at screening <5 years
  7. Any contraindication to b/ts DMARDs according to the "Summary of Product Characteristics"
  8. Pregnancy or lactation

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:トリプル

武器と介入

参加者グループ / アーム
介入・治療
介入なし:Conventional decision strategy

All patients receive a new course of b-ts-DMARDs, with or without concomitant cDMARD. If a CDAI ≤10 is not achieved after 12 weeks, patients are switched to a bDMARD or tsDMARD. The decision on which b/tsDMARD to use at week 12 is at the discretion of the investigator.

実験的:Clinical plus ultrasound-based decision strategy

All patients in this group will be evaluated by ultrasound at 44 joints. In case of clinically-verified plus ultrasound verified inflammation, patients will receive a new b-ts-DMARD while continuing or not background csDMARD(s) therapy. If a CDAI ≤10 is not achieved after 12 weeks, patients are again evaluated by ultrasound at 44 joints. In case clinically-verified plus ultrasound-verified inflammation is present, patients are switched to a bDMARD or tsDMARD. The decision on which b/tsDMARD to use is at the discretion of the investigator. In case clinically-verified plus ultrasound-verified inflammation is absent, patients receive step-up pain therapy while background treatment will be continued.

At baseline and at weeks 12, 24 and 48, patients will undergo an ultrasound examination of 44 joints by one investigator, who is blinded to the strategic arm and all clinical data. The following joints will be assessed: bilateral wrists (distal radio-ulnar joint, radio-carpal, mid-carpal recesses), 1st - 5th MCP, 1st - 5th PIP, elbows, glenohumeral, acromioclavicular, sternoclavicular, knees, ankles and 1st - 5th MTP. At wrists, MCP and PIP joints, palmar and dorsal sites including synovial recess, extensor and flexor tendons will be investigated whereas at feet the dorsal site (plus the lateral aspects of MTP5) including synovial recess and extensor tendons will be evaluated. Further, we will assess the following: at elbows the dorsal and anterior recess, at shoulders the dorsal recess, at knees the suprapatellar as well as the medial and lateral femoro-tibial recess and at ankles the anterior, lateral and medial recess of the tibiotalar joint.

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
Non-inferiority of ultrasound-based decision strategy compared to clinically-based strategy.
時間枠:24 weeks

Non-inferiority of the experimental arm (i.e. clinical plus ultrasound-guided treatment decision) in comparison to the control arm (clinically-guided decision) concerning the proportion of patients reaching low disease activity (CDAI ≤10) and a minimal clinical important improvement (MCII: improvement of ≥6 points if starting from moderate disease activity, any case achieving low disease activity who started from high disease activity) [19] or remission according to ACR/EULAR index-based remission criteria (CDAI ≤2.8/Boolean remission) at week 24.

24 weeks

二次結果の測定

結果測定
メジャーの説明
時間枠
12週および48週でのACR/EULAR指数ベースの寛解基準に従った、低疾患活動性およびMCIIまたは寛解の患者の割合の比較
時間枠:12週と48週
12週と48週
12、24、および48週でのACR / EULARインデックスベースの寛解基準(それぞれCDAI ≤2.8 /ブール寛解)による寛解中の患者の割合の比較
時間枠:12週、24週、48週
12週、24週、48週
12、24、および48週でのDAS-28(DAS-28 ≤2.6)またはSDAI(≤3.3)による寛解中の患者の割合の比較
時間枠:12週、24週、48週
12週、24週、48週
12週目、24週目、48週目の圧痛関節数の比較
時間枠:12週、24週、48週
12週、24週、48週
12週、24週、48週の関節腫脹数の比較
時間枠:12週、24週、48週
12週、24週、48週
12週、24週、48週の赤血球沈降速度(ESR)値の比較
時間枠:12週、24週、48週
12週、24週、48週
12週、24週、48週におけるC反応性タンパク質(CRP)の値の比較
時間枠:12週、24週、48週
12週、24週、48週
24週目と48週目のEuroQol-5次元(EQ5D)スコアの比較
時間枠:24週と48週
24週と48週
12、24、および 48 週で 1 以下の PD スコア (44 関節数) を達成した患者の比較
時間枠:12週、24週、48週
12週、24週、48週
Comparison of value of VAS (Visual Analogue Scale) pain at weeks 12, 24 and 48
時間枠:12, 24 and 48 weeks

Range: 0, better outcome - 100, worse outcome

12, 24 and 48 weeks
Comparison of value of VAS (Visual Analogue Scale) Patient Global Assessment of Disease Activity at weeks 12, 24 and 48
時間枠:12, 24 and 48 weeks

Range: 0, better outcome - 100, worse outcome

12, 24 and 48 weeks
Comparison of value of VAS (Visual Analogue Scale) Physician Global Assessment of Disease Activity at weeks 12, 24 and 48
時間枠:12, 24 and 48 weeks

Range: 0, better outcome - 100, worse outcome

12, 24 and 48 weeks
Comparison of Health assessment questionnaire (HAQ) score at week 24 and 48
時間枠:24 and 48 weeks

Range: 0, better outcome - 3, worse outcome

24 and 48 weeks
Comparison of Rheumatoid Arthritis Impact of Disease (RAID) score at week 24 and 48
時間枠:24 and 48 weeks

Range: 0, better outcome - 10, worse outcome

24 and 48 weeks
Comparison of Fatigue Assessment Scale (FAS) score at week 24 and 48
時間枠:24 and 48 weeks

Range: 10, better outcome - 50, worse outcome

24 and 48 weeks
Comparison of the trend of VAS (Visual Analogue Scale) pain across all study visits
時間枠:48 weeks

Absolute and relative change of parameter with respect to the baseline and between different visits

48 weeks
Comparison of the trend of VAS (Visual Analogue Scale) Patient Global Assessment of Disease Activity across all study visits
時間枠:48 weeks

Absolute and relative change of parameter with respect to the baseline and between different visits

48 weeks
Comparison of the trend of Health assessment questionnaire (HAQ) score across all study visits
時間枠:48 weeks

Absolute and relative change of score with respect to the baseline and between different visits

48 weeks
Comparison of the trend of Rheumatoid Arthritis Impact of Disease (RAID) score across all study visits
時間枠:48 weeks

Absolute and relative change of score with respect to the baseline and between different visits

48 weeks
Comparison of the trend of Fatigue Assessment Scale (FAS) score across all study visits
時間枠:48 weeks

Absolute and relative change of score with respect to the baseline and between different visits

48 weeks
Comparison of the trend of EuroQol-5 dimensions (EQ5D) score across all study visits
時間枠:48 weeks

Absolute and relative change of score with respect to the baseline and between different visits

48 weeks
Comparison of the differences in the Sharp van der Heijde Score from baseline to week 48
時間枠:48 weeks

Range: 0, better outcome - 448, worse outcome

48 weeks
Comparison of direct medical costs of treatment arms from baseline to week 24 and 48
時間枠:24 and 48 weeks

Measurement: Incremental cost-effectiveness ratio (ICER)

24 and 48 weeks
Analysis regarding predictors of low disease activity or remission at 12, 24 and 48 weeks in patients treated with ≥1bDMARD as compared to those who receive pain therapy
時間枠:12, 24 and 48 weeks

Investigated predictors: baseline erythrocyte sedimentation rate, baseline C reactive protein, baseline ultrasound score (EULAR-OMERACT combined score)

12, 24 and 48 weeks

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。

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 (実際)

2023年2月22日

一次修了 (推定)

2028年8月1日

研究の完了 (推定)

2029年2月1日

試験登録日

最初に提出

2022年12月15日

QC基準を満たした最初の提出物

2023年2月6日

最初の投稿 (実際)

2023年2月8日

学習記録の更新

投稿された最後の更新 (実際)

2026年11月4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3日

最終確認日

2026年11月1日

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いいえ

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