What are the trade names of the biologic agents used to treat rheumatoid arthritis?

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関節リウマチの生物学的製剤の商品名

関節リウマチ治療に使用される生物学的製剤は、作用機序別に以下の商品名で利用可能です。12

TNF阻害薬

  • アダリムマブ (Adalimumab)
  • セルトリズマブ ペゴル (Certolizumab pegol)
  • エタネルセプト (Etanercept)
  • ゴリムマブ (Golimumab)
  • インフリキシマブ (Infliximab)

これらは最も広く使用されている生物学的製剤で、TNF-αという炎症性サイトカインを標的とします12。バイオシミラーも利用可能です1。

IL-6受容体阻害薬

  • サリルマブ (Sarilumab)
  • トシリズマブ (Tocilizumab)

IL-6経路を遮断し、炎症と関節破壊を抑制します12。

T細胞共刺激阻害薬

  • アバタセプト (Abatacept)

T細胞の活性化を阻害することで免疫応答を調節します12。

B細胞除去療法

  • リツキシマブ (Rituximab)

CD20陽性B細胞を標的とし、特にリンパ増殖性疾患の既往がある患者に推奨されます13。

IL-1受容体拮抗薬

  • アナキンラ (Anakinra)

IL-1を標的としますが、他の生物学的製剤ほど広く使用されていません45。

重要な臨床的考慮事項

治療選択のアルゴリズム:

  1. 第一選択として、メトトレキサートなどの従来型合成DMARDsを開始2
  2. 3〜6ヶ月後に不十分な反応の場合、生物学的製剤を追加2
  3. 最初の生物学的製剤が失敗した場合、同じクラスまたは異なるクラスの別の生物学的製剤に変更可能2

特殊な状況での選択:

  • NYHA III/IV心不全患者: TNF阻害薬を避け、非TNF阻害薬の生物学的製剤を選択3
  • リンパ増殖性疾患の既往: リツキシマブを優先3
  • B型肝炎感染: リツキシマブ開始時は予防的抗ウイルス療法が必須3

安全性の注意点: すべての生物学的製剤は感染リスクの増加を伴います5。治療開始前に結核スクリーニングが必要で、肺炎球菌、インフルエンザ、B型肝炎ワクチン接種を推奨します5。

生物学的製剤は従来型DMARDsとの併用療法が推奨され、特にメトトレキサートとの併用で治療継続率が向上します62。

References

4
Research

The use of biologic therapies in the treatment of rheumatoid arthritis.

Current pharmaceutical biotechnology, 2014

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