Real-time digital polymerase chain reaction (PCR) as a novel technology improves limit of detection for rare allele assays

Abstract excerpt

Background: Tumor heterogeneity may lead to false negative test results for tissue biopsy-based companion diagnostic tests. Real-time polymerase chain reaction (PCR) and digital PCR assays are used to detect rare alleles in cell-free circulating DNA for liquid biopsies; however, those tests lack strong sensitivity at low allele frequencies. We show here a novel real-time digital PCR instrument that utilizes...

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