Detailed positive results from the DESTINY-Breast06 phase III trial showed that Enhertu (trastuzumab deruxtecan) demonstrated a statistically significant and clinically meaningful improvement in progression-free survival compared to standard-of-care chemotherapy in patients with HR-positive, HER2-low metastatic breast cancer and the overall trial population (patients with HR-positive, HER2-low and HER2-ultralow [defined as IHC 0 with membrane staining] expression) following one or more lines of endocrine therapy.
In modern oncology, important insights from clinical trials often emerge years after initial publication. As new therapies extend survival and transition more patients into long-term remissions, clinicians and researchers are increasingly looking beyond initial response rates to understand durability, long-term safety, and even the possibility of a cure.
