At Diagnosis
When tumor tissue is hard to reach or slow to process.
For Patients
Biopsies can be stressful. For many patients they are painful, risky or not possible because of where the tumor is or how you are feeling. CellSight™ is a blood test that gives your care team key information about your cancer without surgery.
CellSight™ is a next-generation liquid biopsy. It looks for circulating tumor cells in your blood, which carry key genetic information about your cancer, and reads their DNA.
With a simple blood draw, it helps your doctor:
The test does not replace your doctor's judgment. Your care team decides whether the test is right for you and what the results mean for your care.

When tumor tissue is hard to reach or slow to process.
To find resistance mutations and guide next steps.
Because of tumor location or your overall health.
Only a blood draw is needed.
Results in as little as 10 to 14 days.
Helps match you to targeted therapies.
Monitors your cancer over time without additional biopsies.
CellSight™ DNA is ordered by a licensed healthcare provider as part of your care.
Two small tubes from a vein in your arm, about four teaspoons in total. No fasting or preparation is needed, and mobile phlebotomy can come to you.
We isolate the cancer cells and sequence their DNA. This usually takes 10 to 14 days once the sample arrives.
The report goes to your doctor, who will review it with you and explain what it means.
It is a standard blood draw from a vein in your arm, the same as routine lab work.
No. CellSight™ DNA must be ordered by a healthcare provider. If you think it may help, ask your oncologist.
Coverage varies by plan. We take a patient-centered approach to billing and can help your doctor's office with questions. Contact us for details.
We handle your sample and results under federal and state privacy laws. See our Privacy and Compliance pages.
Talk to Your Doctor
Ask your oncologist whether CellSight™ is right for your care. The test is designed to help your treatment team make informed decisions without additional procedures.