The goal of this multi-centre, prospective study is to assess the frequency of asymptomatic brain metastasis in patients with stage IIb or III Triple Negative or HER2 positive breast cancer. The main questions it aims to answer are: 1. What proportion of patients with stage IIb or III Triple Negative or HER2 positive breast cancer have asymptomatic brain metastases identified on a screening contrast-enhanced magnetic resonance imaging (MRI) of the brain? 2. How do patients feel about undergoing brain imaging to screen for asymptomatic brain metastasis? 3. What clinical as well as liquid and tissue-based biomarkers are associated with asymptomatic detection of brain metastasis? Participants will undergo brain imaging, provide one blood sample (for analysis of ctDNA), and complete the Testing Morbidities Index (TMI) questionnaire after imaging is done. Procedures may take place either prior to or after completion of (neo)-adjuvant systemic therapy; however, the study interventions must take place within 18 months of initial breast cancer diagnosis.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
SCREENING
Masking
NONE
Enrollment
100
Contrast-enahanced Brain Magnetic Resonance Imaging (MRI)
Blood draw for analysis of circulating tumor DNA
Questionnaire regarding the participant's perception of brain imaging.
Sunnybrook Health Science Centre
Toronto, Ontario, Canada
RECRUITINGAsymptomatic brain metastasis frequency among HER2+ patients
Proportion of eligible patients with Stage IIb or III HER2+ breast cancer who have asymptomatic brain metastasis
Time frame: 18 months
Asymptomatic brain metastasis frequency among Triple Negative patients
Proportion of eligible patients with Stage IIb or III Triple Negative breast cancer who have asymptomatic brain metastasis
Time frame: 18 months
Acceptability of brain imaging to patients
Proportion of patients who are approached about the study who agree to enroll
Time frame: 18 months
Patients' acceptability of the brain magnetic resonance imaging
Patients' acceptability of the brain magnetic resonance imaging as evaluated by the "Testing Morbidities Index" (TMI)
Time frame: 18 months
Proportion of patients who have subsequent brain magnetic resonance imaging
Annual chart review to determine the frequency of patients who have subsequent brain imaging performed after the first trial magnetic resonance imaging
Time frame: 36 months
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