Beyond PSA: Could ctDNA Become an Early Compass for Treatment in Metastatic Prostate Cancer?
For decades, PSA has been the main biomarker used to monitor prostate cancer. It is inexpensive, accessible, and clinically familiar, but it does not always reflect what is happening inside metastatic tumors. PSA production is linked to androgen-receptor signaling, meaning that treatment-resistant or neuroendocrine-like tumor clones may continue to grow without producing a corresponding PSA […]
