Serum estradiol (sE2) levels in premenopausal (PreM) women receiving neoadjuvant ovarian function suppression (OFS) with the oral SERD amcenestrant, alone, or in combination with letrozole or abemaciclib in the I-SPY2 Endocrine Optimization Pilot (EOP).

Jo Chien, Peter Norwood, Rita Mukhtar, Karthik Giridhar, Matthew P. Goetz, Christos Vaklavas, Anthony D. Elias, Mei Wei, Hope S. Rugo, Nan Chen, Alexander D. Borowsky, Lamorna Brown Swigart, Rebecca Arielle Shatsky, Laura Ann Huppert, Michelle E. Melisko, Laura Esserman