MRI Screening for Brain Metastases Among Patients With Triple Negative or HER2+ Stage II or III Breast Cancer
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…
Conditions studied
Breast Cancer
About this study
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.
Interventions
- Diagnostic Test: Brain imaging — Contrast-enahanced Brain Magnetic Resonance Imaging (MRI)
- Diagnostic Test: Analysis of circulating tumor DNA — Blood draw for analysis of circulating tumor DNA
- Behavioral: Testing Morbidities Index — Questionnaire regarding the participant's perception of brain imaging.
Primary outcomes
- Asymptomatic brain metastasis frequency among HER2+ patients (18 months)
- Asymptomatic brain metastasis frequency among Triple Negative patients (18 months)
Eligibility information
Study locations
- Sunnybrook Health Science Centre, Toronto, Ontario M4N 3M5 Canada
Source: ClinicalTrials.gov. Record last refreshed by Varda Clinical: 2026-09-29.