Northstar Select®

Unmatched sensitivity for more treatment opportunities.

50%

Reduction in false negative results1

109%

More pathogenic CNAs detected

Northstar Select® is the most sensitive ctDNA liquid biopsy that uses QCT™ technology to guide therapy selection by detecting actionable alterations, even in low tumor fraction samples.

A purpose-built
liquid biopsy.

Northstar Select® uncovers treatment opportunities others miss — focused on the genes that matter most for therapy selection.

102 genes
Comprehensive panel targeting clinically actionable biomarkers
High-sensitivity detection of single- nucleotide variants and indels
Covers copy number amplifications (20 genes) and copy number losses (7 genes)
Fusion detection
Biomarker
Microsatellite Instability Status -
High (MSI-H) status
Why sensitivity matters

Low VAF alterations can be found even in traditionally high-shedding tumors1.

The most sensitive liquid CGP

Northstar Select achieves a 2 to 5x lower limit of detection than other liquid biopsies2.

Proven in a head-to-head study

Northstar Select uncovered 50%+ more pathogenic alterations1.

FAQ for Northstar Select®

  • Data generated on the 84-gene Northstar Panel. Bower et al. J Liq Biopsy, 2025. Head-to-head improvement % determined when compared to the comparator products in the aggregate. Actual percentages may vary depending on the individual comparator liquid biopsy test.

  • LOD 95% (limit of detection 95%) is defined as the lowest concentration of an analyte in a sample that can be consistently detected with ≥95% probability. Comparator assays have a LOD 95% that ranges from 0.20% -0.40%.

More answers start here.

Monitor treatment response using epigenomics