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Cancer Treatment Guidance

Guardant360® CDx

First FDA-aproved liquid biopsy for advanced solid tumour treatment guidance

Turnaround Time10 working days from sample receipt
🧪Specimen TypeStreck管全血(2X 10mL)
🔬MethodGenomics (DNA), Epigenomics and 74-gene panel coverage
AccreditationsFDA-approved companion diagnostic, CAP & CLIA-accreditated lab
Guardant360® CDx

Guardant360® is a next-generation sequencing (NGS) liquid biopsy test that analyses circulating tumour DNA (ctDNA) from blood. Results are delivered in ~10 working days from sample receipt, enabling timely treatment decisions for patients with advanced solid tumours.

Oncologists managing patients with advanced solid tumours who need comprehensive genomic profiling to guide targeted therapy selection or identify clinical trial eligibility.

⚠ Not intended for:
  • Hematologic malignancies
  • Early stage (stage I/II) cancers
  • When disease is stable or responding to therapy

74 gene somatic panel and MSI-High status

Step / TestAccuracyNotes
Sensitivity≥ 95%
Specificity-SNV/CNA/Fusion100%
Specificity-Indel95.2%
Specimen Type: Streck管全血(2X 10mL)
Preferred Collection:

2 × 10ml Streck Cell-Free DNA BCT® tubes

20 mL peripheral blood collected into 2 × Streck Cell-Free DNA BCT® tubes. Collected by a licensed healthcare professional.

Stability & Storage:

Collection, packaging, and shipping must follow the Guardant 360 Blood Collection Kit (BCK) Instructions for Use, including tube type and transport requirements.

Guardant360® is available through Codex Genetics as the authorised distributor in Hong Kong. Please contact us for ordering, sample collection kits, and shipping instructions.

Shipping Instructions:

Samples must be collected and submitted through an authorised healthcare provider.

  • Collect blood into Streck Cell-Free DNA BCT® tubes (room-temperature stable up to 14 days).
  • Do NOT centrifuge. Ship tubes intact at ambient temperature; avoid freezing or >37°C.
  • Include completed test requisition form. Address: Unit 220, 2/F, Building 16W, HKSTP, Pak Shek Kok, NT, Hong Kong.

Please contact us for pricing.

Guardant360® CDx detects somatic variants in 74 genes and MSI-High status. It is FDA-approved as a companion diagnostic for NSCLC treatments, such as TAGRISSO® (osimertinib), RYBREVANT™ (amivantamab-vmjw), and LUMAKRAS™ (sotorasib).