At Diagnosis
When tissue is insufficient or inaccessible, or when a fast, noninvasive option is needed.
For Providers
Precision Oncology, Powered by Whole Cells
Biopsies can be stressful, and for many patients they are painful, risky or impossible because of tumor location or overall health. CellSight™ gives you the key information about a cancer from a blood draw.
Why Whole Cells Matter
CellSight™ isolates and analyzes intact tumor cells. ctDNA assays capture only the DNA fragments shed into the bloodstream.
- Phenotypic context alongside genomic data
- Greater tumor specificity with less background noise
- Better representation of tumor heterogeneity
Clinical Applications
CellSight™ supports decisions when traditional biopsies fall short.
At Progression or Relapse
To identify resistance mutations and adjust therapy.
When Biopsy Isn't Feasible
For patients with high-risk comorbidities or deep tumor sites.
Actionable Results
517-Gene Panel
SNVs, indels and copy number variants across a comprehensive solid tumor panel.
MSI and TMB
Reported to guide immunotherapy decisions.
10 to 14 Day Turnaround
From specimen receipt to signed-out report.
Clear, Structured Reports
Designed for clinical use, with the CTC count for the accession.
How to Order
CellSight™ DNA uses a dedicated collection kit. Specimens collected in Streck or EDTA tubes cannot be processed.
Create Your Account
Register your practice for Client Portal access. Existing clients sign in to order.
Request Kits
Each kit contains CellSave CTC Preservation Tubes, a Test Requisition Form and prepaid return shipping.
Collect the Specimen
Draw two 10 mL CellSave tubes, filled to the line. Invert gently 8 to 10 times to mix; do not shake. Label both tubes with patient information and the TRF number.
Complete the Requisition
Fill in all fields: provider information, patient demographics, diagnosis and test requests. Place the TRF in the outer sleeve.
Package, Chill and Ship
Place the tubes in the biohazard bag with liner, add the frozen ice pack below, and seal at 2 to 8 °C. Call the courier or FedEx for same-day pickup and confirm lab receipt.
Receive the Report
Reports are released to the Client Portal in 10 to 14 days from specimen receipt.
Specimen Requirements
From the CellSight™ DNA Test Requisition Form.
| Volume | Two 10 mL tubes of peripheral whole blood, filled to the line |
|---|---|
| Tube | CellSave CTC Preservation Tubes (kit supplied); invert 8 to 10 times, do not shake |
| Not accepted | Streck, EDTA or other cfDNA tubes |
| Transport | Chilled at 2 to 8 °C with the frozen ice pack in the kit |
| Shipping | Same-day courier or FedEx pickup; confirm lab receipt |
| Mobile phlebotomy | Available; request on the Test Requisition Form |
| Provider support | (561) 284-6377, clientservices@cancercelldx.com |
Why Choose CellSight™
- No tissue needed. A standard blood draw is the only specimen.
- Noninvasive and repeatable. Suited to longitudinal monitoring.
- Whole-cell precision. Insights that ctDNA alone may miss.
- Pan-tumor utility. Solid tumor profiling across indications.
How It Works
CellSight™ uses a proprietary enrichment and recovery workflow to isolate rare circulating tumor cells from whole blood. The cells are then sequenced for tumor-specific mutations, amplifications and genomic signatures, without tissue.
Provider Questions
How is CellSight™ DNA different from a ctDNA test?
ctDNA tests sequence cell-free DNA fragments from plasma. CellSight™ DNA isolates intact circulating tumor cells and sequences the DNA inside them. The DNA we analyze has a known tumor-cell origin, and we report how many tumor cells were found.
What does the report include?
SNVs, indels and CNVs across 517 genes, TMB, MSI status and the CTC count for the accession.
What is the turnaround time?
10 to 14 days from specimen receipt at our laboratory.
Can I use a tube I already stock?
No. The assay requires CellSave CTC Preservation Tubes, which are supplied in the kit. Streck and EDTA tubes do not preserve intact cells for this workflow.
Can I order for a patient enrolled in a clinical trial?
Yes. Contact us if the trial requires a specific data format or report delivery.
Connect With Us
For test ordering, validation data or clinical support, contact our team.