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Blood test could revolutionize breast cancer monitoring

NCT ID NCT06807502

Knowledge-focused Sponsor: ScreenCell Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing a device called ScreenCell that counts circulating tumor cells (CTCs) in a blood sample from breast cancer patients. Researchers want to see if changes in CTC numbers over time can help track how the cancer is progressing. The study will include 93 women with early-stage or metastatic breast cancer and follow them for up to 36 weeks.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could lead to a simple blood test to track breast cancer progression and guide treatment decisions.
What could go wrong
This is an early observational study, not a treatment trial. The device may not prove reliable enough for routine use.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 93 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2025

Expected to finish

Nov 2026

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

INCLUSION CRITERIA For all participants : * Female with 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 two years before inclusion * Participant with no history of cancer EXCLUSION CRITERIA For all participants: * Male * 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 healthy volunteers: * History of cancer * Detection of CTC (positive profile) during screening

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Conditions

The condition(s) this trial relates to.

breast cancer breast carcinoma breast neoplasm invasive breast carcinoma Neoplasm Metastasis Neoplastic Cells, Circulating

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Breast cancer early stage breast cancer (stage 1-3) Breast cancer invasive Breast cancer, metastatic

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • CMC Ambroise Paré Hartmann

    RECRUITING

    Neuilly-sur-Seine, 92200, France

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