Frequently Ask Questions

Precision Oncology FAQs

Cancer markers are a substances found in the body that can be elevated in cancer. CTCs are the actual tumor cells that have separated from a primary tumor and ended the blood stream. They are very rare in patients without cancer. Like cancer markers, the number of CTCs are elevated in cancer.
Like other serum tumor marker tests, this test has not been approved for cancer screening. The CELLSEARCH® Circulating Tumor Cell  should not generally be used for the diagnosis or screening of cancer.
This test provides an earlier assessment of the patients’ prognosis than radiographic imaging or Prostate specific antigen (PSA). When used together with other clinical indicators, CTCs provide a more comprehensive picture of a patient’s status.
We provide the CTC result within 5 days of receiving the sample. This test requires only 10 mL of blood drawn into a Cellsave Preservation tube.
At this moment, the CellSearch CTC test is only indicated  for patients with metastatic breast, colorectal or prostate cancer.

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