行動中の医薬品政策:バイオシミラーの導入後の生物学的医薬品の量とコストへの影響
Jodie Belinda Hillen1, Ty Stanford1, Michael Ward2
1Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, Australia.
Value in health regional issues
|August 29, 2025
まとめ
バイオシミラー薬はオーストラリアで 38.3%の生物学的基準製品のコストを大幅に削減しました. 患者さんへのアクセスを拡大し より多くの薬の資金調達を可能にしました
科学分野:
- 薬学経済学
- 健康経済学
- バイオ製品市場分析
背景:
- バイオ医薬品のコストの上昇は 医療予算と患者へのアクセスを脅かしています
- バイオシミラー医薬品は 特許の有効期限が過ぎた後に 費用を削減し 入手の機会を向上させる戦略です
- バイオシミラーの影響を評価するためのケーススタディはオーストラリア市場です.
研究 の 目的:
- バイオシミラーの導入がオーストラリアのバイオ医薬品市場に及ぼす経済的影響を評価する.
- バイオシミラーの導入後に生体薬の支出,量,価格の変化を定量化する.
主な方法:
- 2010~2020年のオーストラリアの販売データ (IQVIA-MIDAS) を利用した.
- バイオシミラー市場への参入前と後に分析された支出 (USD) と量 (標準化単位 [SU])
- 基準製品と市場全体の支出,SU,およびSUの平均価格の計算された差.
主要な成果:
- バイオシミラーの導入から12ヶ月以内に,基準生物学的薬の総支出は38.3%減少し,その量はわずか5%増加した.
- 基準製品の平均価格が30~40%低下し,バイオシミラー製品の価格は最大40%低下した.
- バイオシミラー薬の市場シェアは薬によって異なり,2020年までに生物学的薬の市場全体の30%に達した.
結論:
- バイオシミラーの導入は,オーストラリアにおける市場全体の支出と基準製品SUの価格を効果的に低下させた.
- オーストラリアの政策は,コストを削減し,新しい治療法のための資本を解放することによって,患者の薬へのアクセスを促進します.
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