N. Honoré , G. Laliotis , V. Aushev , S. Velichko , C. Palsuledesai , H. Dahou , C. van Marcke , R. Galot , M. Liu , J-P.H. Machiels
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引用次数: 0
Abstract
Background
Despite multimodal treatment, locally advanced (LA) squamous-cell carcinoma of the head and neck (SCCHN) has a recurrence rate of ∼50%. Circulating tumor DNA (ctDNA) has emerged as a potential biomarker for minimal residual disease detection after curative-intent treatment. This strategy could be used to identify the patients at greater risk of recurrence, for whom extended or intensified therapy and/or surveillance imaging may be considered.
Materials and methods
A personalized, tumor-informed 16-plex multiplex PCR-next-generation sequencing assay was used for the detection of ctDNA in banked plasma samples collected pre-treatment (baseline time point) and within 12 weeks from the end of curative-intent treatment (post-treatment time point). The primary and secondary endpoints were recurrence-free-survival (RFS) and overall survival (OS) of post-treatment ctDNA-positive and -negative patients, respectively.
Results
Out of a cohort of 50 patients with LA SCCHN, personalized ctDNA assays were successfully designed for 43 patients. Among these 43 patients, ctDNA was detected in 42 of 43 (97.6%) patients at baseline. At the post-treatment time point, ctDNA was detected in 4 of 42 (9.5%) patients, 3 of whom relapsed. Of the 43 patients, 11 (26%) experienced disease recurrence within 2 years of follow-up. Patients with post-treatment ctDNA positivity demonstrated a significantly inferior RFS and OS (P ≤ 0.05), compared with ctDNA-negative patients. The median lead time for ctDNA positivity over clinical recurrence was 7.0 months (range 3.6-7.1 months).
Conclusions
The personalized, tumor-informed assay detected pre-treatment ctDNA in the majority of the patients with LA SCCHN. ctDNA positivity within 12 weeks of completing curative-intent treatment was predictive of worse RFS and OS. These results support studies to assess the value of longitudinal testing for surveillance and may open the path to initiating treatment upon molecular recurrence in patients with LA SCCHN.
期刊介绍:
ESMO Open is the online-only, open access journal of the European Society for Medical Oncology (ESMO). It is a peer-reviewed publication dedicated to sharing high-quality medical research and educational materials from various fields of oncology. The journal specifically focuses on showcasing innovative clinical and translational cancer research.
ESMO Open aims to publish a wide range of research articles covering all aspects of oncology, including experimental studies, translational research, diagnostic advancements, and therapeutic approaches. The content of the journal includes original research articles, insightful reviews, thought-provoking editorials, and correspondence. Moreover, the journal warmly welcomes the submission of phase I trials and meta-analyses. It also showcases reviews from significant ESMO conferences and meetings, as well as publishes important position statements on behalf of ESMO.
Overall, ESMO Open offers a platform for scientists, clinicians, and researchers in the field of oncology to share their valuable insights and contribute to advancing the understanding and treatment of cancer. The journal serves as a source of up-to-date information and fosters collaboration within the oncology community.