アバタセプトの若年性イディオパシー関節炎の小児:ランダム化,ダブルブラインド,プラセボ対照離脱試験
Nicolino Ruperto1, Daniel J Lovell, Pierre Quartier
1IRCCS G Gaslini, PRINTO, Genoa, Italy. nicolaruperto@ospedale-gaslini.ge.it
Lancet (London, England)
|July 18, 2008
まとめ
アバタセプットは,他の治療に反応しなかった若年性イディオパシー性関節炎 (JIA) の小児における関節炎の発症を著しく軽減しました. このセレクティブT細胞コストシミュレーションモデュレータは,耐火性JIAの管理に安全で効果的な代替案を提供します.
科学分野:
- 小児リウマト病学について
- 免疫学 免疫学とは
- クリニック・トライアル 臨床試験
背景:
- ジュベニルイジオパシー関節炎 (JIA) は,抗腫瘍ネクロシス因子 (TNF) 剤を含む従来の疾患変異性抗レウマティック薬 (DMARDs) に反応しないか,不耐性がある子供がいるため,治療の課題を提起します.
- アバタセプトは,選択的T細胞共刺激調節剤であり,これらの治療が難しい症例に対する潜在的な治療選択肢を提供します.
研究 の 目的:
- JIAと診断され,以前に他の治療法で失敗した小児患者のアバタセプトの安全性と有効性を評価する.
- この特定の患者集団でアバタセプトが関節炎の発症を予防または遅らせることができるかどうかを判断する.
主な方法:
- 190人の子ども (6~17歳) を対象とした,ダブルブラインドでランダム化して制御された禁断試験で,JIAが活発で,以前のDMARDに対する反応が不十分であった.
- 患者は4ヶ月間オープンラベルアタセプトを受け,その後6ヶ月間アタセプトを継続するかプラセボを受けることをランダムに選択し,プライマリエンドポイントとしてフレアまでの時間でした.
主要な成果:
- ダブル・ブラインド・フェーズ (p=0.0003) で,アタテセプト群 (20%) とプラセボ群 (53%) の間で関節炎発症が著しく減少した.
- アタセプットを継続した患者では,発作のリスクが3分の2以上減少した (危険比0.31).
- 不良事象の頻度はグループ間で類似しており,重篤な不良事象の有意な違いはなかった.
結論:
- アバタセプトによる選択的T細胞共刺激調節は,JIAを患っている子供に対する実行可能で効果的な代替治療法です.
- アバタセプトは,耐火性JIAの小児集団において,好ましい安全性プロファイルと有効性を示しています.
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