circulating tumor DNA

An impetus for the review included the fact that companies are advertising and promoting liquid biopsy in areas where the technology has not yet proven its clinical utility.

The decision, which the company said was made for business and financial reasons, raises questions about the viability of such tests in the face of reimbursement uncertainly.

The firm's Guardant360 assay will be used first to test patients for ERBB2 mutations, then guide patients to a variety of treatment arms.

A study reported this week that measuring changes in the numbers of specific circulating tumor DNA mutations can rapidly identify breast cancer patients who will have better outcomes.

The company can now offer to Florida residents its products, which include the fecal immunochemical tests, Insure FIT and Insure One, and the ctDNA test Colvera.  

This Week in PNAS

In PNAS this week: mouse model of genetically induced emphysema, gene expression signatures of circulating melanoma cells, and more.

The company has also developed two liquid biopsy cancer test, Liquid GPS Core for DNA and Liquid GPS Expression for RNA.

Liquid biopsy companies are increasingly recognizing the value of analyzing not just circulating tumor DNA, but biomarkers like CTCs, methylation, and proteins.

The multi-analyte assay could screen for cancers that currently lack early-stage detection methods, including ovarian, liver, stomach, pancreatic, and esophageal cancers.

Technologies gained one of their first solid footholds in the clinical care of cancer patients with adoption into the treatment paradigm of lung cancer, while researchers turned their eyes to proving utility in other niches.


360Dx reports that the US Centers for Medicare & Medicaid Services would cover next-generation sequencing-based cancer panel tests.

The Washington Post reports that a meteorologist is being considered as presidential science and technology advisor.

In PNAS this week: precision medicine strategy to screen for disease risk, genome evolution in Haemophilus influenzae, and more.

Researchers have developed a PCR-based assay to gauge whether manatees are present in waters.