What does it take to cure metastatic breast cancer? According to Dr. Pedram Razavi, it takes a blood test sensitive enough to find one cancer cell in a million, the courage to stop treatment when that signal disappears, and a trial designed to prove the paradigm wrong.

The HERizon-Breast Trial at Memorial Sloan Kettering is doing exactly that — and it's enrolling now.

This is one of the most science-rich episodes of Live from Stage 4 to date. We break down every term, every concept, and every implication in plain language so you don't need a medical degree to understand why this matters.