Iza-Bren is very effective (not only in TNBC) but its profile is also very chemo-like.
What’s the targeted contribution vs non-specific uptake? Iza-Bren half-life is ~1 day!
What’s the correlation with EGFR expression? HER3 expression? Co-expression of both EGFR and HER3?
Impressive results from a phase 3 trial of Iza-Bren (anti-HER3/EGFR TOPO1 ADC) vs chemo in pretreated mTNBC, with improvement in PFS and OS. High rate of hematologic toxicities, including 5% febrile neutropenia. Phase 3 ongoing to confirm these results in a global population.