Clinical Roundup

Enhertu demonstrated median PFS of 13.2 months in IHC 1+ or IHC 2+/ISH- metastatic breast cancer in phase III trial

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. 
Clinical Roundup

Degradation of HER2, EGFR may overcome drug resistance in HER2-positive breast cancers

New research out of VCU Massey Comprehensive Cancer Center—published this month in Drug Resistance Updates—revealed a previously unknown biological process through which breast tumor cells develop resistance to standard treatment. It could open the door for cancer scientists to further target this vulnerability and create more effective therapies for disease.