Panel-based tumor mutational burden (TMB) analysis of matched tumor and plasma specimens using Illumina’s TruSight Oncology 500 next-generation sequencing assay

AACR 2019 Scientific Poster

Checkpoint inhibitor (CPI) therapy demonstrates a remarkable clinical benefit in many cancer types. However, the ability to successfully select patients who will benefit from CPIs is still limited. Tumor mutational burden (TMB), a measure of the number of somatic mutations per coding area of tumor genome, is a putative biomarker of response showing great promise in CPI and immunotherapy combination trials. The ability to measure TMB from tumor biopsies or plasma samples will be important for clinical adoption of this biomarker. 

In this poster, we report on initial performance evaluation of Illumina’s TruSight™ Oncology 500 gene (TSO500) NGS assay for the analysis of TMB in FFPE tissue and plasma cell-free (cf) DNA specimens. 

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