{"title":"ctDNA-based molecular residual disease and survival in resectable colorectal cancer","authors":"Yoshiaki Nakamura, Jun Watanabe, Naoya Akazawa, Keiji Hirata, Kozo Kataoka, Mitsuru Yokota, Kentaro Kato, Masahito Kotaka, Yoshinori Kagawa, Kun-Huei Yeh, Saori Mishima, Hiroki Yukami, Koji Ando, Masaaki Miyo, Toshihiro Misumi, Kentaro Yamazaki, Hiromichi Ebi, Kenji Okita, Atsushi Hamabe, Hiroki Sokuoka, Satoshi Kobayashi, George Laliotis, Vasily N. Aushev, Shruti Sharma, Adham Jurdi, Minetta C. Liu, Alexey Aleshin, Matthew Rabinowitz, Hideaki Bando, Hiroya Taniguchi, Ichiro Takemasa, Takeshi Kato, Daisuke Kotani, Masaki Mori, Takayuki Yoshino, Eiji Oki","doi":"10.1038/s41591-024-03254-6","DOIUrl":null,"url":null,"abstract":"<p>The interim analysis of the CIRCULATE-Japan GALAXY observational study demonstrated the association of circulating tumor DNA (ctDNA)-based molecular residual disease (MRD) detection with recurrence risk and benefit from adjuvant chemotherapy (ACT) in resectable colorectal cancer (CRC). This updated analysis with a 23-month median follow-up, including 2,240 patients with stage II–III colon cancer or stage IV CRC, reinforces the prognostic value of ctDNA positivity during the MRD window with significantly inferior disease-free survival (DFS; hazard ratio (HR): 11.99, <i>P</i> < 0.0001) and overall survival (OS; HR: 9.68, <i>P</i> < 0.0001). In patients who experienced recurrence, ctDNA positivity correlated with shorter OS (HR: 2.71, <i>P</i> < 0.0001). The significantly shorter DFS in MRD-positive patients was consistent across actionable biomarker subsets. Sustained ctDNA clearance in response to ACT was an indicator of favorable DFS and OS compared to transient clearance (24-month DFS: 89.0% versus 3.3%; 24-month OS: 100.0% versus 82.3%). True spontaneous clearance rate with no clinical recurrence was 1.9% (2/105). Overall, our findings provide evidence for the utility of ctDNA monitoring for post-resection recurrence and mortality risk stratification that could be used for guiding adjuvant therapy.</p>","PeriodicalId":19037,"journal":{"name":"Nature Medicine","volume":null,"pages":null},"PeriodicalIF":58.7000,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1038/s41591-024-03254-6","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
The interim analysis of the CIRCULATE-Japan GALAXY observational study demonstrated the association of circulating tumor DNA (ctDNA)-based molecular residual disease (MRD) detection with recurrence risk and benefit from adjuvant chemotherapy (ACT) in resectable colorectal cancer (CRC). This updated analysis with a 23-month median follow-up, including 2,240 patients with stage II–III colon cancer or stage IV CRC, reinforces the prognostic value of ctDNA positivity during the MRD window with significantly inferior disease-free survival (DFS; hazard ratio (HR): 11.99, P < 0.0001) and overall survival (OS; HR: 9.68, P < 0.0001). In patients who experienced recurrence, ctDNA positivity correlated with shorter OS (HR: 2.71, P < 0.0001). The significantly shorter DFS in MRD-positive patients was consistent across actionable biomarker subsets. Sustained ctDNA clearance in response to ACT was an indicator of favorable DFS and OS compared to transient clearance (24-month DFS: 89.0% versus 3.3%; 24-month OS: 100.0% versus 82.3%). True spontaneous clearance rate with no clinical recurrence was 1.9% (2/105). Overall, our findings provide evidence for the utility of ctDNA monitoring for post-resection recurrence and mortality risk stratification that could be used for guiding adjuvant therapy.
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