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HER2-positive Breast CancerCRANIUMNCT06358625

Identification of Risk Factors for Brain Recurrence in Patients With HER2-positive Localised Breast Cancer

An observational study of HER2-positive Breast Cancer, run by Center Eugene Marquis at 1 site in France.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

HER2 gene amplification, detected in 20% to 30% of breast cancers, was a poor prognostic factor before the advent of anti-HER2 therapies. In the early 2000s, trastuzumab revolutionised the management of patients with HER2-positive (HER2+) breast cancer in the metastatic and localised stages of the disease. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
HER2-positive Breast Cancer
What is being tested?
Pre-treatment biopsy
How many people
120 participants
Where
1 siteFrance
Study dates
6 Jun 2024to 6 Jun 2031
Phase
Observational
Are there results?
Not yet: the study is under way

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

Study population: women with HER2+ non-metastatic breast cancer treated at the CRLCC Eugène marquis

Who may be able to join

  • Age ≥ 18 years old
  • be a female patient
  • Patients with histologically proven HER2-positive invasive breast cancer (IHC 3+ or 2+ with positive SISH),
  • Neoadjuvant chemotherapy and intra-tumour clips indicated at the multidisciplinary consultation meeting (RCP).
  • Signed Informed Consent Form

Who cannot join

  • pregnant or breast-feeding women
  • Have had a haematoma requiring level II analgesics at the time of the diagnostic biopsy.
  • Known coagulation disorders
  • Individual deprived of liberty or placed under the authority of a tutor, or a currator
  • Not be affiliated to a social security regimen

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

France1 site, 1 recruiting
  • Centre de lutte contre le cancer Eugène Marquis

    Rennes, 35 000

    Fanny LE DU, Dr

    Fanny LE DU, DR

    Recruiting

Other trials in France

About this study

HER2 gene amplification, detected in 20% to 30% of breast cancers, was a poor prognostic factor before the advent of anti-HER2 therapies. In the early 2000s, trastuzumab revolutionised the management of patients with HER2-positive (HER2+) breast cancer in the metastatic and localised stages of the disease.

At the time of diagnosis of metastatic disease, 7-11% of patients have brain metastases, with (70% of cases) or without symptoms (30% of cases). In the absence of brain metastases, 30% to 50% of patients will develop brain metastases within the first two years of treatment, depending on whether the disease is hormone receptor positive (HR+) or negative (HR-).

Read more

The presence of brain metastases is the most important prognostic factor. The neurological symptoms caused by the presence of these lesions, but also by the local treatments offered, affect patients' quality of life, although improvements in surgical and radiotherapy techniques have significantly reduced the need for particularly toxic whole brain radiotherapy.

International guidelines do not recommend systematic brain MRI in the absence of neurological symptoms, either in the adjuvant or metastatic stages of this disease. However, there may be a role for more systematic and earlier screening for cerebral recurrence, as single cerebral recurrences without extracranial involvement are common and the new anti-HER2 agents (i.e. tucatinib, an anti-HER2 tyrosine kinase inhibitor, and T-Dxd) have shown significant objective response rates in cerebral metastases.

To date, no clinical or histological prognostic factor (proliferation index, HR expression, etc.) has been used to identify a population of patients at high risk of cerebral relapse, allowing monitoring and treatment to be personalised.

New tools for these indications would significantly modify our clinical practice, allowing the identification of a subpopulation at high risk of cerebral recurrence, suitable for increased monitoring and therapeutic adjustment.

Being tested
Pre-treatment biopsy
Keywords
Metastases, Central Nervous System, Biopsy
Medical subject headings
Neoplasm Metastasis

What participants receive

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

  • Pre-treatment biopsyOther

    A breast biopsy is performed just before the "clip" is placed in the tumour and additional blood samples are performed.

Study groups in NCT06358625
Study groupRoleWhat they receive
HER positiveThe study will include an initial assessment and longitudinal and individual follow-up to identify the occurrence of clinical events of interest and to monitor the evolution of any tumour biomarkers on circulating tumour DNA.
Receives: Other: Pre-treatment biopsy

What is being measured

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

  1. Transcriptomic profile change of HER2+ primary breast tumours before any treatment

    comparison of the transcriptomic profile of HER2+ primary breast tumours before any treatment of patients who will develop brain metastases within 5 years with patients who will not develop them

    Measured: At inclusion

Secondary outcomes (1)
  1. Transcriptomic profile change on circulating tumour DNA (ctDNA)

    High-throughput sequencing (NGS) of a panel of genes previously identified by transcriptomic analysis

    Measured: At baseline, Year 1; Year2; Year3, Year4; Year 5, at relapse

Timeline

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

  1. First posted10 Apr 2024
  2. Study start6 Jun 2024
  3. Primary completion6 Jun 2031 (estimated)
  4. Study completion6 Jun 2031 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
120 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06358625
Sponsor's protocol ID
2023-4-1-001
Acronym
CRANIUM
Status last verified
Jul 2025
First submitted
2 Apr 2024
Last updated
1 Aug 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of HER2-positive Breast Cancer, run by Center Eugene Marquis at 1 site 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 5 inclusion and 5 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: looking for participants now, as of the sponsor's last update on 1 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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

Contact Valérie JOLAINE, Dr ((0)299253036 ext. +33, v.jolaine@rennes.unicancer.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Transcriptomic profile change of HER2+ primary breast tumours before any treatment (time frame: At inclusion). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 1 Aug 2025; AzTrials last refreshed its copy on 7 Nov 2026.

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