小分子対生物学的承認後の腫瘍学試験に対するインフレ削減法の初期の影響
Hanke Zheng1, Julie A Patterson1, Jonathan D Campbell1
1Research Department, National Pharmaceutical Council, Washington, DC 20006, United States.
Health affairs scholar
|September 2, 2025
まとめ
インフレ削減法 (IRA) は,薬剤価格交渉プログラム (DPNP) のスケジュールが異なるため,生物学的薬よりも小分子薬の承認後の臨床試験を妨げる可能性があります. この研究では,IRA後の小分子試験の減少が顕著でした.
科学分野:
- 腫瘍学
- 健康 経済
- 医薬品政策
背景:
- インフレ削減法 (IRA) は,薬剤価格交渉プログラム (DPNP) の小分子薬 (7年) と生物学的薬 (11年) の適格性に関する異なる期限を定めています.
- この異なるタイムラインは,小分子腫瘍学薬の承認後の臨床開発のインセンティブへの潜在的な影響について懸念を喚起しています.
研究 の 目的:
- 小分子対生物学的腫瘍学薬の業界が後援する臨床試験 (第I-III期) のIRA通過の影響を調査する.
- 小分子腫瘍学薬の承認後の研究に IRA の異なる DPNP 適格性のタイムラインが不釣り合いに影響するかどうかを分析する.
主な方法:
- CitelineのTrialtroveデータベースを使用した縦断研究 (2014年7月〜2024年8月)
- 小分子薬の承認後の試験における変化と,IRAの制定後の生物学的薬の変化を比較するために,差異の差異設計を採用した.
- ワクチン関連試験は分析から除外した.
主要な成果:
- 開始された小分子試験の月間平均は45. 3% (P < 0. 01) 減少し,生物学試験の月間平均は32. 5% (P < 0. 01) 減少した.
- 小分子腫瘍学薬の試験では,IRA後の生物学的薬と比較して,月間4. 5回のさらなる有意な減少が見られた (95%CI, - 7. 1から - 1. 9;P < . 01).
結論:
- この発見は,IRAの異なるDPNP適格性のタイムラインが,小分子薬の承認後の研究に不釣り合いな影響を及ぼす可能性があるという仮説を裏付けている.
- これは,小分子腫瘍学療法のための新しい臨床試験の発展に潜在的に悪影響を及ぼすことを示唆しています.
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