血清反応陰性関節リウマチにおける長期予後
Bradly A Kimbrough1, Roslin Jose George1, Cynthia S Crowson1
1Mayo Clinic College of Medicine and Science, Rochester, Minnesota, USA.
Arthritis care & research
|December 12, 2025
まとめ
血清反応陰性関節リウマチ(RA)患者の約13%が10年以内に診断変更を経験しました。これらの患者の4分の1が薬剤フリー寛解を達成し、血清反応陰性RA管理における重要な長期予後が強調されています。
科学分野:
- リウマチ学; 免疫学;Epidemiology
背景:
- 血清反応陰性関節リウマチ(RA)は、診断上の課題と多様な疾患経過を示します。診断の進化や寛解の可能性を含む長期予後の理解は、患者管理にとって重要です。
研究 の 目的:
- 血清反応陰性RAにおける診断変更の10年累積罹患率を決定すること。この集団における薬剤フリー寛解および生物学的製剤または標的合成疾患修飾性抗リウマチ薬(b/tsDMARDs)開始率を評価すること。
主な方法:
- 2005年から2023年までミネソタ州オルムステッド郡の成人住民のコホート研究を実施し、新たに血清反応陰性RAと診断された患者を対象としました。診断、治療、寛解状態に関するデータを収集するために手作業によるカルテレビューを使用しました。統計分析には、死亡および診断変更の競合リスクを調整した10年累積罹患率の計算が含まれました。
主要な成果:
- 診断変更の10年累積罹患率は12.8%であり、脊椎関節炎が最も一般的な代替診断でした。薬剤フリー寛解の10年累積罹患率は26.6%でした。b/tsDMARDの開始の10年累積罹患率は19.9%でした。
結論:
- 当初血清反応陰性RAと診断された個人の約13%が、10年以内に診断変更を経験しました。血清反応陰性RA患者の約26.6%が、10年間にわたって薬剤フリー寛解を達成しました。これらの発見は、血清反応陰性RAの動的な性質と、寛解の可能性または高度な治療の必要性を強調しています。
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