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Breast Cancer Ductal Infiltrating MetastaticPhase 3CirCé01NCT01349842

Circulating Tumor Cells to Guide Chemotherapy for Metastatic Breast Cancer

A Phase 3 study testing Blood sampling and Usual clinical and radiological criteria in people with Breast Cancer Ductal Infiltrating Metastatic, run by Institut Curie at 7 sites in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Evaluation of the use of Circulating tumour Cells to guide chemotherapy from the 3rd line of chemotherapy for metastatic breast cancer. Read more about this study

Who is it for?
Ages 18 years and older, women only
What is being tested?
Blood sampling and Usual clinical and radiological criteria
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
265 participants
Where
7 sitesFrance
Study dates
2 Mar 2010to 6 Nov 2018
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Women over the age of 18 years.
  • WHO performance status: 0 to 4.
  • Metastatic breast cancer.
  • Progression after 2 lines of chemotherapy with decision to initiate third-line chemotherapy.
  • Disease evaluable by CTC (CTC-positive before starting chemotherapy).
  • Histology: lobular or ductal adenocarcinoma.
  • Information of the patient and signature of the informed consent form by the patient or her legal representative.

Who cannot join

  • Disease not evaluable by CTC (CTC-negative before starting chemotherapy).
  • History of other potentially metastatic cancer (stage III or IV cancer) different from breast cancer.
  • Histology other than lobular or ductal adenocarcinoma.
  • Pregnant woman, women likely to become pregnant or nursing mothers.
  • Persons deprived of their freedom or under guardianship.
  • Women unable to comply with the medical follow-up of the study for geographical, social or mental reasons.

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

France7 sites
  • Centre Georges Francois Leclerc

    Dijon, 21079

  • Clinique Victor Hugo

    Le Mans, 72000

  • Chu Limoges

    Limoges, 87042

  • Institut Curie

    Paris, 75005

  • Hopital Saint Louis

    Paris, 75475

  • Institut Rene Huguenin Curie

    Saint-Cloud, 92210

  • Institut de Canacerologie de L'Ouest

    Saint-Herblain, 44805

Other trials in France

About this study

Official title: CirCe01 Study: Evaluation of the Use of Circulating Tumour Cells to Guide Chemotherapy From the 3rd Line of Chemotherapy for Metastatic Breast Cancer

Evaluation of the use of Circulating tumour Cells to guide chemotherapy from the 3rd line of chemotherapy for metastatic breast cancer.

Read the detailed description

Phase III multicentre, randomized, open-label study comparing early evaluation of the efficacy of chemotherapy by determination of circulating tumour cells versus conventional clinical and radiological evaluation.

Being tested
Blood sampling, Usual clinical and radiological criteria

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Blood samplingBiological

    20ml of patient peripherical blood will be collected

  • Usual clinical and radiological criteriaOther

    Clinical examination, tumoral evaluation

Study groups in NCT01349842
Study groupRoleWhat they receive
Circulating Tumor CellsExperimentalCentralized determination of CTC by CellSearch® technology (Veridex), the only technology currently validated in clinical practice for the early evaluation of response to chemotherapy of breast cancers. This evaluation is performed by blood sampling comparing the CTC level before the first injection of each new line of chemotherapy. Chemotherapy can only be continued in the case of a positive CTC response. Discontinuation of chemotherapy can also be decided by the clinician on the basis of other clinical or radiological arguments.
Receives: Biological: Blood sampling
Clinical and radiological criteriaOtherManagement of chemotherapy according to the usual clinical and radiological criteria adopted by the patient's attending physician.
Receives: Other: Usual clinical and radiological criteria

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Overall Survival

    Overall survival (from date of randomization

    Measured: 7 years

Secondary outcomes (6)
  1. Measure of safety and tolerability

    A list of the most frequent toxicity was established. The ranks 3 and 4 will be more specificaly collected.

    Measured: 7 years

  2. Improvement of quality of life

    Measured: 7 years

  3. Time to progression, to discontinuation of therapy after 3rd line.

    Measured: 7 years

  4. Comparison of CTC with usual serum tumour markers

    Measured: 7 years

  5. Medico-economical analysis

    Measured: 5 years

  6. Estimate the clinical interest, in particular forecast, of the circulating tumoral DNA

    Measured: 3 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 May 2011 (estimated)
  2. Study start2 Mar 2010
  3. Primary completionJan 2016
  4. Study completion6 Nov 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Diagnosis
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
265 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01349842
Sponsor's protocol ID
IC 2009-03
Acronym
CirCé01
Status last verified
Nov 2025
First submitted
5 May 2011
Last updated
24 Nov 2025
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • Cabel L, Berger F, Cottu P, Loirat D, Rampanou A, Brain E, Cyrille S, Bourgeois H, Kiavue N, Deluche E, Ladoire S, Campone M, Pierga JY, Bidard FC. Clinical utility of circulating tumour cell-based monitoring of late-line chemotherapy for metastatic breast cancer: the randomised CirCe01 trial. Br J Cancer. 2021 Mar;124(7):1207-1213. doi: 10.1038/s41416-020-01227-3. Epub 2021 Jan 21.

    PubMed 33473163
  • Helissey C, Berger F, Cottu P, Dieras V, Mignot L, Servois V, Bouleuc C, Asselain B, Pelissier S, Vaucher I, Pierga JY, Bidard FC. Circulating tumor cell thresholds and survival scores in advanced metastatic breast cancer: the observational step of the CirCe01 phase III trial. Cancer Lett. 2015 May 1;360(2):213-8. doi: 10.1016/j.canlet.2015.02.010. Epub 2015 Feb 17.

    PubMed 25700777

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Blood sampling and Usual clinical and radiological criteria in people with Breast Cancer Ductal Infiltrating Metastatic, run by Institut Curie at 7 sites in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Overall Survival (time frame: 7 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01349842, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Nov 2025.

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