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The company received Chinese regulatory approval for a lung cancer assay last year and plans to seek approval for a liquid biopsy test this year.
The researchers believe using cerebral spinal fluid will enable them to identify brain tumors with a higher sensitivity than with blood samples.
The firm's has expanded its ctDNA sequencing test to cover 17 genes, enough to provide a readout of microsatellite instability for guiding cancer immunotherapy use.
The firm's new RT-PCR assay identifies 20 gene fusion between NTRK1/2/3 and other genes, allowing clinicians to potentially detect rare forms of different cancers.
The firm is moving into a larger facility after its first full year of profitability and planning new hires to support its plans to bring liquid biopsy kits through the FDA.
Plans are in place for a Guardant360-based assay to predict response to AsztraZeneca's Tagrisso and for a blood-based TMB test using the larger GuardantOmni panel.
A recent study highlights the ability of the company's prognostic tool to detect levels of circulating tumor cells in angiosarcoma patients.
At the conference, researchers presented data from a number of studies using molecular diagnostic tools to better characterize breast cancer recurrence and treatment outcomes.
Following recent publications and anticipating the readout from its NILE study next year, the company plans to make the case that its liquid biopsy approach performs as well as tissue tests.
The company reported revenues of $21.7 million compared to $11.1 million in the year-ago quarter, overshooting analysts' expectations of $17.5 million.