Combination Shows Promise in Metastatic ESR1-Mutant Breast Cancer
A novel drug combination led to clinically meaningful antitumor activity in metastatic ESR1-mutated, estrogen receptor-positive (ER+)/HER2-negative breast cancer that had progressed on CDK4/6 inhibition, a small prospective study showed. Adding the selective estrogen receptor modulator (SERM) lasofoxifene to abemaciclib (Verzenio) resulted in a median progression-free survival (PFS) of 56 weeks, and a 24-week clinical benefit […]