先進性卵巣がんの治療のために3週間に1回,カルボプラチンと併用して,週に1回投与された濃度のパクリタキセル:第3相,オープンラベル,ランダム化制御試験
Noriyuki Katsumata1, Makoto Yasuda, Fumiaki Takahashi
1Department of Medical Oncology, National Cancer Center Hospital, Tokyo, Japan. nkatsuma@ncc.go.jp
Lancet (London, England)
|September 22, 2009
まとめ
パクリタキセルとカルボプラチンによる投与量濃度の週1回のレジメンは,標準の3週間のレジメンスと比較して,進行性卵巣がんの女性における無進行生存期間と全生存期間を著しく改善しました.
科学分野:
- 婦人科腫瘍学 婦人科腫瘍学
- 臨床薬理学 臨床薬理学とは
- 癌治療の研究 癌治療の研究
背景:
- 進行卵巣がんの標準治療は,パクリタキセルとカルボプラチンを3週間ごとに投与する.
- このレジメンに他の薬物を加えることで生存率を高める以前の試みは失敗した.
- この研究では,パクリタキセルとカルボプラチンによる新しい濃度の毎週投与を調査した.
研究 の 目的:
- 投与量濃度の高いパクリタキセル-カルボプラチンによる週1回の投与レジメンの有効性と安全性を,従来の3週間の投与レジメンの有効性と安全性を比較する.
- 進行性卵巣がん患者の進行性生存期 (PFS) と全生存期 (OS) に対する影響を評価する.
主な方法:
- 第3相,オープン・ラベル,ランダム化制御試験は,日本の85のセンターで実施されました.
- 適格な患者 (第II〜第IV段階の卵巣上皮がん,卵管がん,または一次性腹膜がん) は,従来の治療法 (パクリタセル180 mg/m2,カルボプラチンAUC 6 3週ごとに) または用量密度の高い治療法 (パクリタセル80 mg/m2 1日,8日,15日,カルボプラチンAUC 6 3週ごとに1日) にランダムに割り当てられました.
- 主なエンドポイントは,治療意図 (ITT) によって分析された進行性のない生存期間でした.
主要な成果:
- 濃度の高い用量療法では,中位進行性疾患のない生存期間 (28.0ヶ月対17.2ヶ月;HR 0.71;p=0.0015) が有意に長かったことが示されました.
- 3年間の全生存率は,従来のグループ (65.1%;HR 0.75;p=0.03) と比較して,用量密度の高いグループ (72.1%) で高かった.
- 高用量群では,グレード3/4の貧血の割合が高く,高用量群では高用量群 (69%対44%) で,中性病は両群で最も一般的な有害事象であった.
結論:
- パクリタキセルとカルボプラチンを併用した,毎週投与量濃度の高いパクリタキセルは,先発性上皮性卵巣がんの女性における生存率を著しく改善します.
- このレジミンは,この患者集団にとって,新しく効果的な治療の選択肢を提供します.
- 毒性,特に貧血は慎重に管理する必要がありますが,生存効果は,新しい標準のケアとして考慮することを支持します.
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