What is the CELLSEARCH® Circulating Tumor Cell (CTC) Test?


The CELLSEARCH® CTC Test is a simple, actionable blood test that helps oncologists assess the prognosis of patients with metastatic breast, prostate*, or colorectal cancer.

The CELLSEARCH® CTC Test is:

  • The first and only clinically validated, FDA-cleared blood test for enumerating circulating tumor cells (CTCs). CTCs are cancer cells that detach from a primary tumor and travel through the bloodstream or lymphatic system to other parts of the body.

...An actionable test that can help inform clinical decision making

*Metastatic prostate cancer patients were defined as having two consecutive increases in the serum marker prostate-specific antigen above a reference level, despite standard hormonal management. These patients are commonly described as having androgen-independent, hormone-resistant, or castration-resistant prostate cancer. For more information on the intended use and limitations for the CELLSEARCH® Circulating Tumor Cell Test, please refer to the Instructions for Use which can be found at documents.cellsearchctc.com.

References: 
  1. Cristofanilli M, Hayes DF, Budd GT, et al. J Clin Oncol. 2005;23(7):1420-1430.
  2. de Bono JS, Scher HI, Montgomery RB, et al. Clin Cancer Res. 2008;14:6302-6309.
  3. Cohen SJ, Punt CJA, Iannotti N, et al. J Clin Oncol. 2008;26(19):3213-3221.