SEP 8, 2026 · JOURNAL ARTICLE
Progression Patterns as Determinants of Post-Progression Survival in Hormone Receptor-Positive/Human Epidermal Growth Factor Receptor 2-Negative Metastatic Breast Cancer Treated with Cyclin-Dependent Kinase 4/6 Inhibitors
Cerrahpasa Medical Journal
Retrospective single-center study of 87 patients identifying progression patterns as prognostic factors for post-progression survival in CDK4/6-inhibitor-treated HR+/HER2− metastatic breast cancer, with statistically significant hazard ratios for visceral and liver progression but limited by design and sample size.
Reported
Sample size87
New visceral progression prevalen…56.3%
New liver metastases prevalence35.6%