RaDaR® ST
Use
Studies in solid tumors across multiple cancer types have consistently demonstrated that detection of circulating tumor DNA (ctDNA) for molecular residual disease (MRD) detection after surgery or systemic therapy is associated with a markedly increased risk of disease relapse in the absence of additional treatment. Conversely, patients in whom ctDNA is not detected post-curative therapy exhibit a substantially lower risk of recurrence, reflecting minimal or absent residual disease burden and constitutes one of the strongest indicators of favorable prognosis in multi-cancer settings. Additionally, ctDNA detection can precede conventional imaging findings by several months, providing an early indicator of recurrence risk and enabling closer surveillance or therapeutic intervention.
Special Instructions
RaDaR ST is customized for each patient based on their tumor's unique genetic profile, established through whole exome sequencing (WES) of tumor tissue. The test tracks up to 48 patient-specific somatic mutations in serial plasma samples to assess ctDNA presence and dynamics.
Limitations
A negative ctDNA result does not definitively indicate the absence of cancer as not all recurrences shed sufficient ctDNA to be detected.
Methodology
NGS (WES)
Biomarkers
Result Turnaround Time
28-35 days
Related Documents
For more information, please review the documents below
Specimen
Tissue (FFPE)
Volume
Not provided
Minimum Volume
Not provided
Collection Instructions
A block is preferred for testing: 20 - 80% tumor content and >4 mm2 of tissue surface area for WES. If submitting 5-micron unstained slides, the following number of slides are requested: Samples with >25 mm2 of tissue: 10 unstained slides (2 sections per slide preferred) Samples with 10-24 mm2 of tissue: 20 unstained slides (2 sections per slide preferred) Please submit 1 additional unstained slide for H&E.
Storage Instructions
Tissue blocks and/or slides can be shipped at room temperature.
