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Scientists investigate why some breast cancer cells survive chemo

NCT ID NCT02570100

Knowledge-focused Sponsor: Centre Oscar Lambret Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at how breast cancer stem cells—cells that can resist treatment and cause cancer to return—emerge during chemotherapy. Researchers collected blood and tumor samples from 56 women before, during, and after treatment to analyze genetic changes. The goal was to understand why these stem cells become more common after chemo, which could lead to better therapies in the future.

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 research could point toward new treatments that target cancer stem cells, potentially reducing recurrence and improving outcomes for breast cancer patients.
What could go wrong
This was a small, early-stage study that was terminated, so results may be limited. The findings are exploratory and may not lead to immediate treatments.

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

56 people

The number who actually took part.

Started

Apr 2015

Finished

Oct 2020

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

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

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Women over 18 * With a mammary adenocarcinoma histologically proven * Who cannot benefit from a first-conserving surgery or with aggressiveness criteria on the initial biopsy (triple negative tumor, grade III histoprognostic, high Ki67, HER2 overexpressed) after presentation in multidisciplinary meeting. * Absence of prior chemotherapy. * Requiring a neoadjuvant chemotherapy with anthracyclines and taxanes selected in multidisciplinary meeting. * Informed consent signed by the patient before the implementation of any specific procedure to the study. Exclusion Criteria: * Metastatic disease. The extension work-up is carried out according to the reference system of the participating center. * Other histological type. * Patient refusing the conservation of samples. * Patient included in a clinical trial protocol with an experimental molecule (during this study).

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm

As listed by the trial registrant

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

Breast cancer

Contacts and locations

Locations

  • Centre Oscar Lambret

    Lille, 59020, France

More trials for these conditions

Other studies related to the condition(s) this trial covers.