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The tool, called Cerebro, significantly outperformed other publicly available methods, including in the less-trafficked areas of the genome that are now relevant for TMB immunotherapy prediction.
Researchers showed, retrospectively, that using a cutoff of 16 circulating DNA mutations they could identify patients who were more likely to respond to immunotherapy.
A Samsung University team found that mutation load measured with the Guardant360 liquid biopsy assay predicted response as well as tissue-based TMB.
With sequence data for more than 118,000 tumors profiled at Foundation Medicine, investigators tracked PDL1 amplification prevalence and possible treatment implications.
The projects, organized by Friends of Cancer Research in the US and the Quality Assurance Initiative Pathology (QuIP) in Germany, are comparing different TMB assays.
The company is eyeing a launch for its IVD kits at the beginning of next year, as evidence grows for the integration of TMB analysis into the clinical care of cancer patients.
The company shared validation data this week that it said led the FDA to approve use of the test in a new prospective trial of Roche's Tecentriq in NSCLC.
The Wall Street Journal reports on gaps in COVID-19 testing affecting less affluent urban areas and rural locations.
According to NBC News, new SARS-CoV-2 variants are making it harder for researchers to model the course of the pandemic.
The New York Times reports that experts say President Joe Biden's goal of vaccinating 1 million people a day in the US in the next 100 days is too low a bar.
In Science this week: single-cell lineage tracing technique applied to study lung cancer metastasis, and more.