多発性または低リスクの再発性生殖細胞腫瘍に対する高用量化学療法
Yago Nieto1, John F Ward1, Wayne Hofstetter2
1The University of Texas MD Anderson Cancer Center, Houston, TX, United States.
まとめ
ゲムシタビン/ ドクタキセル/ メルファラン/ カーボプラチン (GemDMC) の連続高用量化学療法 (HDC) は,再発性生殖細胞腫瘍 (GCT) の生存率を有望に示しています. この研究では,ベバシズマブによる改善は認められなかった.
科学分野:
- 腫瘍学
- 癌 研究
- 薬理学について
背景:
- 再発した生殖細胞腫瘍 (GCT) は,標準的な治療で悪い結果が出ます.
- 自体幹細胞移植による高用量化学療法 (HDC) は,一部のGCT患者にとって治療の選択肢を提供します.
- 複数の再発性または耐火性GCTには新しい治療戦略が必要である.
研究 の 目的:
- ベバシズマブと併用された連続ゲムシタビン/ ドクテクセル/ メルファラン/ カーボプラチン (GemDMC) の有効性を評価する.
- GCTの血管性を標的とするベバシズマブがHDCと連携するかどうかを評価する.
- 予想以上に改善できるかどうかを判断する.
主な方法:
- 3つのコホートで連続したベバシズマブ-ゲムDMCとベバシズマブ-イフォスファミド/カルボプラチン/エトポシド (ICE) を含む試験.
- 適格性の基準には,第2回またはその後の再発,または低リスクの第1回再発が含まれていた.
- 結果は試験外のコホートで検証された.
主要な成果:
- 複数の再発性/ 耐性GCTの男性患者165人が治療を受けました.
- 全体の応答率は84. 5%で,77%が完全または部分的な寛解を達成した.
- 5年無再発生存率 (RFS) と全生存率 (OS) はそれぞれ57. 1%と58. 3%であった.
- ベバシズマブを投与した患者と投与されなかった患者との間で有意な結果の違いは認められなかった.
結論:
- 順次GemDMC- I) CE化学療法は,予期された結果を上回る低リスクのGCTを倍増させるのに有効です.
- ベバシズマブは,この患者群でRFSやOSの改善に有意な効果を示さなかった.
- 既定の治療法は,進行したGCTの患者に有効な治療法を提供します.
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