Breast Cancer
Conditions
Keywords
neo-adjuvant radiotherapy, breast cancer, MRI
Brief summary
Magnetic resonance imaging (MRI) is the method of choice in breast cancer to perform the loco-regional staging and direct the treatment. European Guidelines (EUSOMA) currently recommend MRI for initial evaluation and assessement of the neoadjuvant chemotherapy (NAC) response, for breast cancer. The standard of care consists of realizing a MRI before the start of the NAC and another one after it's ended, six months later. There is currently no consensus on the realization of an interval MRI for early assessment of the chemosensitivity of the tumor. It would allow though alterations in the therapeutic regimen in the event of a non response. Similarly, there is no consensus on when this interval MRI should be performed. Some recent studies suggest that Diffusion-weighted Magnetic Resonance Imaging is interesting for the evaluation of the early response. However, these are preliminary studies with quantitative measures realized by the region of interest (ROI) method. A response to neoadjuvant chemotherapy results in elevated values of apparent diffusion coefficients (ADC). There is'nt any published data on the potential interest of breast MRI after a radiotherapy treatment and before the surgical treatment. Therefore, the expected benefits of this study are: * to monitor the early modifications of the perfusion and diffusion parameters at the level of the tumor after radiotherapy, and correlate them to the histology of the surgical monster. * to assess if MRI is able to objectivate the early signs of response after a radiotherapy neo-adjuvant treatment of breast cancer. This record is linked to the NCT02858934 record and will share the same cohort of patients
Interventions
DEVICEMRI
MRI examination after the neo-adjuvant radiotherapy, but before the surgical treatment
Sponsors
Brugmann University Hospital
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Age ≥ 18 years * Histological diagnosis of unifocal invasive breast carcinoma, no special type (ductal carcinoma) * Tumor Staging: cT1-2N0M0 * Luminal A or B * Candidate for breast conserving surgery * N0-status confirmed by lymph node cytology
Exclusion criteria
* Multifocal/multicentric disease * Prior thoracic radiotherapy * Pregnancy * SBR3 grading * Triple negative status which benefit neoadjuvant chemotherapy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Anatomo-pathology classification - histological type | Between 2 to 8 days after last radiotherapy session | The histological type of the tumor will be determined by the Anatomo-Pathology Department of the CHU Brugmann hospital, according to standard of care. The determination will be performed on the initial biopsy samples used for diagnosis and/or on the surgical specimen |
| Apparent diffusion coefficient (ADC) (mm2/sec) | Baseline (before radiotherapy) | Apparent diffusion coefficient (ADC) expressed in mm2/sec. Magnetic resonance images realised with the Ingenia 3 Tesla Engine (Philips) and the Area 1,5 Tesla Engine (Siemens).Post-processing realized with the Syngo Onco Care application of Siemens. |
Countries
Belgium
Outcome results
None listed