Detection of ESR1 Mutations in Tissue and Liquid Biopsy with Novel Next-Generation Sequencing and Digital Droplet PCR Assays: Insights from Multi-Center Real Life Data of Almost 6000 Patients

Abstract excerpt

Background: ESR1 mutations are biomarkers in breast cancer patients who develop metastatic disease after endocrine therapy (ET). Recently, the Food and Drug Administration (FDA) and European Medicines Agency (EMA) have approved Elacestrant, a selective estrogen receptor degrader for patients harboring ESR1 mutations. This has necessitated the establishment of reliable and sensitive NGS- or PCR-based assays to...

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