Key clinical point: Receptor profiles and the presence of extracranial visceral metastases were significant predictors of prognosis in patients with metastatic breast cancer (BC) who had brain metastases and underwent stereotactic radiosurgery (SRS).
Major finding: The median overall survival (OS) was 14.8 months for the entire cohort. OS outcomes worsened in patients with estrogen receptor-negative (ER−)/human epidermal growth factor receptor 2-negative (HER2−) BC (hazard ratio [HR] 2.00; 95% CI 1.09-3.67) but were better in those with ER+/HER2+ BC (HR 0.43; 95% CI 0.19-0.96). The presence of extracranial visceral metastases (HR 2.90; 95% CI 1.53-5.50) was also associated with poor survival outcomes.
Study details: Findings are from a retrospective analysis of a cohort including 149 patients with metastatic breast cancer and brain metastases underwent received SRS.
Disclosures: This study was supported by Lundbeck Foundation, Copenhagen. The authors declared no conflicts of interest.
Source: Depner JF et al. Treating brain metastases in metastatic breast cancer: Outcomes after stereotactic radiosurgery examined in a retrospective, single-center cohort analysis. Acta Oncol. 2023 (Sep 26). doi: 10.1080/0284186X.2023.2260942