ArticleCancers2025
The Impact on the Therapeutic Decision of Massive Gene Sequencing (NGS) in Plasma from Patients with Advanced Non-Small Cell Lung Cancer (NSCLC).
Article in Cancers, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundThe use of next-generation sequencing (NGS) in liquid biopsy allows for a comprehensive molecular assessment of circulating tumor DNA (ctDNA) in patients with advanced malignancies. This approach facilitates the detection of clinically relevant mutations linked to prognosis and enables a personalized therapeutic strategy. The objective of this study was to assess the mutational landscape of ctDNA using NGS in patients with advanced non-small cell lung cancer (NSCLC), examine its relationship with clinical and molecular variables, and explore its association with overall survival (OS).
methodsWe performed a retrospective observational study including 78 individuals with metastatic NSCLC treated at Arnau de Vilanova Hospital between 2019 and 2021. Plasma samples were analyzed using the AVENIO NGS platform, which targets the exons of 77 genes. Statistical analyses were conducted using SPSS version 25, applying a 95% confidence level.
resultsA total of 143 genomic alterations were identified in the study population. NGS-directed therapies were initiated in eight patients (10.25%), including EGFR (n = 5), KRAS (n = 2), and BRCA1 (n = 1). The concordance rate between tissue and plasma NGS for EGFR alterations was 57.02%, with mutation frequencies of 11.4% in tissue and 6.5% in plasma. No BRAF mutations were detected by plasma analysis, despite being present in 4.3% of tissue samples. Patients receiving NGS-informed targeted therapy showed a numerically improved OS compared to those who did not, although this difference did not reach statistical significance (
conclusionsLiquid biopsy based on NGS represents a reliable and minimally invasive approach for the genomic characterization of advanced NSCLC. In this real-world cohort, ctDNA profiling enabled the identification of actionable alterations in a relevant proportion of patients, supporting its integration into routine clinical practice for therapeutic decision-making.
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