How Our New Cancer Blood Test Works

Discover why Liquid Biopsy Lab's test for early detection of cancer and treatment monitoring is more accurate than any other.

How our Exosome-Based Liquid Biopsy for Cancer Works

What does an exosome-based Liquid Biopsy test measure?

The relative amount of a cancer-causing mutation being released by active tumor cells into the blood.

Array of blood vials
Why is this important?

The relative amount of a cancer-causing mutation being released by active tumor cells into the blood.

How does that help me?

An exosome-based Liquid Biopsy test will not lead you to believe that your cancer is active when it’s not – because tumors only release exosomes when they are metastasizing.

Can other screening tests do this?

CT scan, ultrasound, and standard MRI cannot – these tests do NOT differentiate between live and dead cancer cells. A PET-CT scan does differentiate between live and dead cancer cells.

Then why is a Liquid Biopsy better than a PET-CT?

It can take months, sometimes even years, for a tumor to develop to the size where it becomes visible on a PET-CT.

An exosome-based Liquid Biopsy test can give you this crucial information long before a visible tumor forms. This means that you can find out if your treatment is working (or if you have cancer) many months – even years – before you otherwise would with a PET-CT or MRI.

Lab tech
What do you need to know in order to perform an exosome-based Liquid Biopsy?

We need to first know what cancer-causing mutations you have.

Which types of cancer are tumor DNA sequencing usually done for?

If you have lung cancer, melanoma, colon cancer, or breast cancer, then you’ve likely had some tumor DNA testing done in order to determine if certain drugs are an option or not.

However, tumor DNA sequencing may not have been done if you another type of cancer.

Do I still need tumor DNA sequencing done, even if I have another form of cancer?

Yes. In all cases, it’s essential to get tumor DNA sequencing done. This explains why. Holding Hands

I haven’t yet had tumor DNA sequencing done. How do I get it?
We can help you access tumor DNA sequencing. Contact us and we’ll explain everything you need to know and help arrange it for you. We can also analyze the results to ensure the data provides you with maximum benefit.
Which tumor DNA sequencing test do you recommend?
While there are a variety of good tumor DNA sequencing tests available, we suggest the Foundation One CDX. It covers 350 genes and is the only FDA approved tumor DNA sequencing panel.

The future of cancer management in a simple blood test.

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"Liquid biopsies could transform cancer care as we know it." 1

Learn More About Precision Oncology


For individuals with cancer, please visit our sister site, Cancer Treatment Options and Management, for Precision Oncology services designed just for you and your care team. CTOAM will coordinate your precision diagnosis – including your personalized liquid biopsy tests – and develop a targeted therapy plan based on what is truly causing your cancer to grow. Cancer Treatment Options and Management will partner with your oncologist to administer and monitor the very best treatment for your cancer.

See how Liquid Biopsy fits into the Four Pillars of Precision Oncology...


  1. Corcoran et al., (2018). Application of Cell-free DNA Analysis to Cancer Treatment. N Engl J Med; (DOI: 10.1056/NEJMra1706174) (379):1754-1765.