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局所的に進行した胃がんのネオアジュバント療法後の病理学的反応の比較効果とモード依存の予後値
Yongfeng Zhu1, Zhenchong Chen1, Minju Jo1
1Department of Gastric Surgery, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, People's Republic of China.
Cancer medicine
|February 12, 2026
まとめ
化学免疫療法 (NACIT) は,局所的に進行した胃がん (LAGC) の無疾患生存率を改善します. 病理学的反応は重要な指標ですが,生存率との相関性は,ネオアジュバント療法タイプによって異なります.
科学分野:
- 腫瘍学 腫瘍学
- 胃腸内科 胃腸内科
- クリニック・トライアル 臨床試験
背景:
- ネオアジュバント治療は,局所的に進行した胃がん (LAGC) の標準です.
- 病理的反応は,治療の有効性にとって重要な代理です.
- 異なるネオアジュバント方式における病理学的反応と長期的な結果の間の相関は不明である.
研究 の 目的:
- 病理学的反応と長期的な生存結果の間の相関を評価する.
- LAGC患者における新補助化学療法 (NACT),化学放射線療法 (NACRT),化学免疫療法 (NACIT) の有効性を比較する.
主な方法:
- 256人のLAGC患者 (2017年-2022年) の遡及的なコホート研究.
- 患者はNACT (n=162),NACRT (n=48) またはNACIT (n=46) を受けました.
- カプラン・マイヤー推定値とコックスモデルを用いて,病理学的反応,無疾患生存率 (DFS),全生存率 (OS) を評価した.
主要な成果:
- NACITはNACTと比較してDFSの有意な改善を示しました (HR=0.75,p=0.035),OSの違いはありませんでした.
- NACRTは病理学的応答率を向上させましたが,生存の利点はありませんでした.
- 主要病理学的応答 (MPR) は,NACTおよびNACITグループでの生存率の改善と相関していたが,NACRTグループではそうではなかった.
結論:
- NACITは,LAGC患者におけるDFSの改善と関連しています.
- NACRTは,病理学的反応が生存優位性を保証しない"病理学と予後不一致"を示す可能性があります.
- 発見は,代替エンドポイントとして病理的反応の統一的な使用に異議を唱え,モダリティ特有の解釈を強調しています.
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