Study on the Treatment of HER2-negative Breast Cancer Brain Metastases With Radiotherapy Combined With Anlotinib

Angiogenesis inhibition represents a significant therapeutic target in breast cancer; however, despite its theoretical feasibility, progress in advanced breast cancer has been slow. Currently, there is a lack of prospective data supporting the selection of tyrosine kinase inhibitors (TKIs) in combination with local therapy. This phase II study aims to evaluate the efficacy and safety of stereotactic radiotherapy (SRT) or whole-brain radiotherapy (WBRT) combined with anlotinib in patients with HER2-negative advanced breast cancer and brain metastases.