Breast Cancer
Conditions
Keywords
Genomic test, Chemotherapy decision
Brief summary
The trial population of this study is composed of women aged more than 18, who have developed a newly node-negative (or pN1mi), Estrogen Receptor (ER)-positive, Her2-negative invasive breast cancer with uncertainty on the indication of adjuvant chemotherapy using standard assessments. Obtaining material for test is at no risk as done from the surgery material. Tumor molecular EndoPredict (EP)clin analysis will allow to obtain information on the expression of 8 breast cancer related genes and will provide important prognosis indications. Clinical validation studies have demonstrated that molecular assays are useful for stratifying patients into risk categories and helpful in making clinical treatment decisions in ER+/node-negative breast cancer patients.
Interventions
OTHEREPClin genomic test
Sponsors
Myriad Genetics, Inc.
UNICANCER
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
* Age ≥ 18 years, * Performance status 0 or 1, * Patient with newly diagnosed, previously untreated, unilateral, localized, histologically confirmed, invasive breast cancer * Fully operated breast cancer including complete resection of breast tumor and adequate axillary surgery * Available surgical material (formalin-fixed, paraffin-embedded) for EPclin® evaluation * ER-positive by IHC (\>10% cells stained or Allred Score≥4) * HER2-negative by IHC (score 0 or 1+) and/or Fish/Cish * Node-negative or pN1mi (through axillary lymph node examination using sentinel node biopsy or axillary clearance) * Uncertainty regarding the toxicity/benefit of adjuvant chemotherapy, outlined inthe following situations: * Lobular histology * Or grade II * Or grade III and pT \< 2cm * Adequate renal, hepatic, cardiac and hematopoietic functions for a chemotherapy administration * Willingness and ability to comply with scheduled visits as well as with test results and chemotherapy decision according to the latest * Signed informed consent and Health insurance coverage
Exclusion criteria
* Non operable, bilateral, locally advanced, T4 or metastatic breast cancer * Any lymph node involvement with the exception of pN0i+ or pN1mi * HER2 Overexpression * Diagnosis of any previous malignancy within the last 5 years, except for adequately treated basal cell carcinoma, or squamous cell skin carcinoma, or in situ cervical carcinoma * Any previous systemic or locoregional treatment for the present breast cancer * Documented inherited predisposition with BRCA1/2 or TP53 mutation * Previous hormone replacement therapy (HRT) stopped less than 2 weeks before surgery * Previous treatment for the present breast cancer * Person unable to give informed consent
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The proportion of patients whose choice of treatment is changed as a result of receiving the EPclin genomic test result | 15 days |
Secondary
| Measure | Time frame |
|---|---|
| Impact of genomic test results on patient's quality of life (QoL), anxiety levels and satisfaction results using standardized State-Trait-Anxiety Inventory questionnaires compared with general condition at baseline. | 1 year |
| Time required by the centralized platform to perform the test (calculated from the biological sample receipt to the genomic test results). | 1 year |
Outcome results
None listed