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Protein clues may predict chemo success in breast cancer

NCT ID NCT00911911

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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Sep 18, 2026 · Updated 3 times

Summary

This completed study looked at blood and tumor samples from 66 women with breast cancer who were about to receive chemotherapy before surgery. Researchers searched for unique protein patterns that might show whether the tumor would shrink with treatment. The goal was to find a way to personalize chemotherapy and avoid ineffective treatments.

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 help doctors predict which breast cancer patients will respond well to chemotherapy before treatment starts.
What could go wrong
This is an observational study that only looks for protein patterns—it does not test a new treatment. The results may not lead to a practical test or change how patients are treated.

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

66 people

The number who actually took part.

Started

Feb 2007

Finished

Jan 2012

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 aged more than 18 years * Histologically proven breast carcinoma * Neo-adjuvant chemotherapy with anthracyclines and/or taxanes * No prior chemotherapy * Written informed consent Exclusion Criteria: * Metastatic disease

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Conditions

The condition(s) this trial relates to.

breast cancer breast carcinoma 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 Henri Becquerel

    Rouen, 76038, France

  • Centre Oscar Lambret

    Lille, 59020, France

  • Geroges PIANTA Hospital

    Thonon-les-Bains, 74 203, France

  • Hopital Saint Vincent

    Lille, 59020, France

  • Intercommunal Hospital

    Annemasse, 74 107, France

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