-- 日本の製薬会社エーザイ(東証:4523)と米国のメルクが共同開発した併用療法は、第3相臨床試験において、無増悪生存期間と全生存期間という2つの主要評価項目を達成できなかった。 火曜日に発表された共同声明によると、この試験は、腎臓がん全体の約80%を占める進行性淡明細胞型腎細胞がんの一次治療を評価するものであった。 LITESPARK-012試験では、1,688人の患者を対象に、キイトルーダ+レンビマ+ウェリレグの併用療法と、キイトルーダと治験薬抗体の配合剤であるMK-1308A+レンビマの併用療法を、既存のキイトルーダ+レンビマの併用療法と比較した。 中間解析の結果、いずれの併用療法も、標準治療と比較して全生存期間と無増悪生存期間の改善という2つの主要評価項目を達成できなかったことが明らかになった。
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