Triple Negative Breast Cancer: Study of Molecular and Genetic Factors
Breast cancer triples negatives (TN; 15 % of the cases) are characterized by a high histoprognostic grade, a strong proliferation, a strong metastatic power, and a worse prognosis than the other forms of breast cancer. It is however a heterogenous group for histological and molecular level, but also for evolution. Most of the TN is part of the basal breast cancer subcategory. Until now, the medical treatment is based on chemotherapy.
Breast cancers by constitutional mutation of BRCA1 / BRCA2 (5 % of breast cancers) are mostly of basal type and their prognostic seems better that what could be expected from high grade tumours and without hormonal receptors. They would be much more frequent in the TN group. However, at this day, no prospective study was led to estimate this incidence, or to study the intervention of other genes of predisposition, as well to analyse the links between this phenotype and their consequences at the germinal or somatic level, in terms of associated molecular changes and prognosis.
The purpose of this study is, on a prospective study, to lead a joined analysis at the germinal level, in search of mutations of the main genes of breast cancer predisposition (BRCA1/2, PALB2, PTEN, PALB2), and at the tumour level (tissue micro-array and transcriptome), by correlating these results to the main clinical parameters.
The 5 years relapse-free survival will also be estimated.
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Anticipated)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Clermont-Ferrand, France, 63011
- Centre Jean Perrin
-
Marseille, France, 13009
- Institut Paoli-Calmettes
-
Marseille, France, 13005
- Hôpital La Timone
-
Nice, France, 06189
- Centre Antoine Lacassagne
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- women > 18
- non metastatic breast cancer
- triple negative
- 5 years follow-up
- signed informed consent
Exclusion Criteria:
- other cancer (except in situ)
- metastases at diagnosis
- impossibility of follow-up
Study Plan
How is the study designed?
Design Details
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Triple negative breast cancer
|
detection of BRCA1 BRCA2 PTEN PALB2 mutation
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
incidence of BRCA1/2, PALB2, PTEN, PALB2 mutations
Time Frame: up to 1 month
|
1) Determine the incidence of the BRCA1/2, PALB2, PTEN, PALB2 mutations in patients having at diagnosis a non metastatic triple negative breast cancer
|
up to 1 month
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
molecular profiles
Time Frame: up to 1 month
|
2) Determine by tissue micro- array and transcriptome the molecular profiles and their correlation with the presence of a mutation
|
up to 1 month
|
|
years relapse-free survival
Time Frame: at 5 years
|
3) Determine the 5 years relapse-free survival in presence or not of a mutation, and according to the molecular profile of expression.
|
at 5 years
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Jean-Marc EXTRA, MD, Institut Paoli-Calmettes
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Anticipated)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- SA03/IPC 2010-003
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