「非常にエキサイティングな結果」:小児がんに対する精密医療が生存率を改善することが臨床試験で示される(‘Very exciting ‘: precision medicine for childhood cancer improves survival, trial shows)

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2024-06-07 ニューサウスウェールズ大学(UNSW)

オーストラリアの研究者と臨床医による研究で、個別化された精密医療が高リスクの子供のがん治療において大幅に改善することが示されました。平均3年間の追跡調査で、個別治療を受けた子供の55%が完全または部分的寛解、または少なくとも6か月間病気が安定した状態を達成しました。2年間の無増悪生存率は個別治療を受けた子供が26%で、標準療法の12%、分子解析に基づかない治療の5倍以上でした。この結果は、精密医療が子供のがん治療において画期的な成果をもたらし、早期の個別治療が重要であることを示しています。

<関連情報>

高リスクの小児がんにおける精密誘導治療 Precision-guided treatment in high-risk pediatric cancers

Loretta M. S. Lau,Dong-Anh Khuong-Quang,Chelsea Mayoh,Marie Wong,Paulette Barahona,Pamela Ajuyah,Akanksha Senapati,Sumanth Nagabushan,Alexandra Sherstyuk,Ann-Kristin Altekoester,Noemi A. Fuentes-Bolanos,Veronica Yeung,Ashleigh Sullivan,Natacha Omer,Yonatan Diamond,Sophie Jessop,Lauren Battaglia,Nataliya Zhukova,Louise Cui,Angela Lin,Andrew J. Gifford,Emmy D. G. Fleuren,Luciano Dalla-Pozza,Andrew S. Moore,… David S. Ziegler
Nature Medicine  Published:06 June 2024
DOI:https://doi.org/10.1038/s41591-024-03044-0

figure 1

Abstract

Recent research showed that precision medicine can identify new treatment strategies for patients with childhood cancers. However, it is unclear which patients will benefit most from precision-guided treatment (PGT). Here we report consecutive data from 384 patients with high-risk pediatric cancer (with an expected cure rate of less than 30%) who had at least 18 months of follow-up on the ZERO Childhood Cancer Precision Medicine Program PRecISion Medicine for Children with Cancer (PRISM) trial. A total of 256 (67%) patients received PGT recommendations and 110 (29%) received a recommended treatment. PGT resulted in a 36% objective response rate and improved 2-year progression-free survival compared with standard of care (26% versus 12%; P = 0.049) or targeted agents not guided by molecular findings (26% versus 5.2%; P = 0.003). PGT based on tier 1 evidence, PGT targeting fusions or commenced before disease progression had the greatest clinical benefit. Our data show that PGT informed by comprehensive molecular profiling significantly improves outcomes for children with high-risk cancers. ClinicalTrials.gov registration: NCT03336931

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