Evaluation of Circulating Tumor Cells (CTC) Relevance in Breast Cancer Follow-up Using the ScreenCell Device

Summary

Liquid biopsy is a noninvasive method for detecting and quantifying circulating tumor cells (CTCs). Thanks to ScreenCell technology, this study aims to evaluate the evolution of the number of CTCs during breast cancer follow-up. The identification and characterization of CTCs would make it possible to obtain information on the stage and molecular characteristics of cancer during follow-up

Eligibility

INCLUSION CRITERIA

For all participants :

* Age greater than or equal to 18 years

For participants with metastatic breast cancer:

\- Patient observed with metastatic breast cancer from the outset or metastatic fall from previously treated breast cancer with change of therapeutic line at the time of inclusion.

For participants with non-metastatic invasive breast cancer:

\- Patient observed with non-metastatic infiltrative breast cancer who had not received any treatment at the time of inclusion (naïve to any treatment)

For healthy volunteers:

* Participant free of any cancer at the time of inclusion, confirmed using a mammogram whose results must be satisfactory, done at the latest one year before inclusion
* Participant with no history of cancer

EXCLUSION CRITERIA

For all participants:

* Age less than 18 years old
* Refusal to participate or withdrawal of consent
* Pregnant and/or breastfeeding women
* Discovery of a cancerous pathology (other than breast cancer for patients) during participant follow-up.

For participants with breast cancer:

\- Absence of CTC during screening

For healthy volunteers:

* History of cancer
* Detection of CTC (positive profile) during screening

Conditions5

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