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Circulating tumor DNA (ctDNA) has emerged as a promising tool for various clinical applications, including early diagnosis, therapeutic target identification, treatment response monitoring, prognosis evaluation, and minimal residual disease detection. Consequently, ctDNA assays have been incorporated into clinical practice. In this review, we offer an in-depth exploration of the clinical implementation of ctDNA assays. Notably, we examined existing evidence related to pre-analytical procedures, analytical components in current technologies, and result interpretation and reporting processes. The primary objective of this guidelines is to provide recommendations for the clinical utilization of ctDNA assays.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10813828 | PMC |
http://dx.doi.org/10.3343/alm.2023.0389 | DOI Listing |
PLoS One
September 2025
Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany.
Background: Current aftercare in breast cancer survivors aims to detect local recurrences or contralateral disease, while the detection of distant metastases has not been a central focus due to a lack of evidence supporting an effect on overall survival. However, the data underpinning these guidelines are mainly from trials of the 1980s/1990s and have not been updated to reflect the significant advancements in diagnostic and therapeutic options that have emerged over the past 40 years. In this trial, the aim is to test whether a liquid biopsy-based detection of (oligo-) metastatic disease at an early pre-symptomatic stage followed by timely treatment can impact overall survival compared to current standard aftercare.
View Article and Find Full Text PDFAsia Pac J Clin Oncol
September 2025
Department of Surgery, School of Medicine, Daegu Catholic University, Daegu, Republic of Korea.
Purpose: This study aimed to identify breast cancer-specific circulating tumor DNA (ctDNA) methylation markers that correspond to tissue DNA methylation.
Methods: Using The Cancer Genome Atlas (TCGA) database, we selected breast cancer-specific DNA methylation markers. The methylation and expression patterns of candidate genes were analyzed in breast cancer cell lines and tissue samples.
Int J Surg
September 2025
Department of Oncology, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China.
J Liq Biopsy
September 2025
Datar Cancer Genetics, Nashik, Maharashtra, India.
Liquid biopsy, specifically circulating tumor DNA (ctDNA) analysis, has emerged as a transformative tool in precision oncology, providing real-time, minimally invasive characterizations of the tumor and tumor dynamics. While tissue biopsy is a critical tool for baseline diagnosis of malignancy, it is often limited by sampling constraints and an inability to capture tumor heterogeneity. In this study, we explored the clinical utility of serial ctDNA testing in guiding therapeutic decisions across a cohort of 30 patients with diverse solid tumors.
View Article and Find Full Text PDFCancer Treat Res Commun
September 2025
Department of Oncology, Aarhus University Hospital (AUH), Palle Juul-Jensens Blvd. 99, 8200 Aarhus N (DK), Denmark.
Purpose: We investigated whether EML4-ALK fusions and mutations in pre-treatment plasma ctDNA predicted time to treatment discontinuation (TTD) in ALK-positive non-small cell lung cancer (ALK+ NSCLC) patients initiating first-line alectinib and evaluated clinical characteristics influencing TTD.
Materials & Methods: 42 patients from five Danish public oncology departments with previously untreated, metastatic ALK+ NSCLC were included in the study. All patients received alectinib, a second-generation ALK inhibitor, as their first-line treatment.