合并分析 III 期结肠癌患者的循环肿瘤 DNA 和免疫评分:PRODIGE-GERCOR IDEA-France/HORG-IDEA-Greece 试验的事后分析。

IF 42.1 1区 医学 Q1 ONCOLOGY
Julien Taieb, John Souglakos, Ioannis Boukovinas, Antoine Falcoz, Franck Pages, Ippokratis Messaritakis, Jaafar Bennouna, Pascal Artru, Christophe Louvet, Celine Lepere, Jean Francois Emile, Olivier Bouche, Thibault Mazard, Dewi Vernerey, Konstantinos Vogiatzoglou, Maria Tzardi, Shruti Sharma, Minetta C Liu, Himanshu Sethi, Thierry André, Jérome Galon, Pierre Laurent-Puig
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引用次数: 0

摘要

本文章由计算机程序翻译,如有差异,请以英文原文为准。
Combined Analyses of Circulating Tumor DNA and Immunoscore in Patients With Stage III Colon Cancer: A Post Hoc Analysis of the PRODIGE-GERCOR IDEA-France/HORG-IDEA-Greece Trials.

Purpose: Immunoscore (IS) and circulating tumor DNA (ctDNA) are two emerging technologies in improving prognostication and tailoring adjuvant treatments in patients resected from a stage III colon cancer (CC). Here, we analyzed the prognostic value of the two biomarkers in patients who participated in the randomized phase III IDEA-France and HORG trials.

Methods: Plasma samples were collected after surgery and before adjuvant chemotherapy. ctDNA analysis was performed using a clinically validated, personalized, tumor-informed 16-plex protein chain reaction assay. Multivariable analyses for time to recurrence (TTR; patients without recurrence or death due to CC) and overall survival (OS) were performed using ctDNA and IS results, along with other parameters including treatment duration and disease risk group.

Results: Of the 554 patients with available ctDNA results, 445 were ctDNA-negative (80.3%) and 109 were ctDNA-positive (19.7%); baseline characteristics showed more T4/N2 and venous embolism/lymphatic invasion/perineural invasion+ in ctDNA-positive patients. With a median follow-up of 6.7 years, the 2-year TTR rate was 43.5% (95% CI, 34.1 to 52.6) for ctDNA-positive patients and 88.1% (95% CI, 84.7 to 90.8) for ctDNA-negative patients (P < .0001). ctDNA was confirmed as an independent prognostic marker for both TTR (adjusted hazard ratio [adjHR], 5.21 [95% CI, 3.59 to 7.58]; P < .001) and OS (adjHR, 4.84 [95% CI, 3.40 to 6.89]; P < .001). ctDNA remained the most significant prognostic factor irrespective of disease stage, treatment duration, and IS results. IS was not prognostic in ctDNA-positive patients but remained a significant prognostic tool for ctDNA-negative patients.

Conclusion: In this combined analysis of two adjuvant trials dedicated to patients with stage III CC after surgery, ctDNA was detectable in 19.7% of the patients and was confirmed as a major independent prognostic biomarker. IS seems to bring additional prognostic information in the 80.3% of patients who are ctDNA-negative.

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来源期刊
Journal of Clinical Oncology
Journal of Clinical Oncology 医学-肿瘤学
CiteScore
41.20
自引率
2.20%
发文量
8215
审稿时长
2 months
期刊介绍: The Journal of Clinical Oncology serves its readers as the single most credible, authoritative resource for disseminating significant clinical oncology research. In print and in electronic format, JCO strives to publish the highest quality articles dedicated to clinical research. Original Reports remain the focus of JCO, but this scientific communication is enhanced by appropriately selected Editorials, Commentaries, Reviews, and other work that relate to the care of patients with cancer.
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