JAMA NetworkLooking for the Optimal Endocrine Partner for ER+, HR+, ERBB2- Advanced Breast Cancer

A phase 2 clinical trial involving 486 patients examined whether fulvestrant or letrozole is more effective in treating advanced breast cancer. The results, published in JAMA Oncology, confirmed that letrozole is the preferred treatment in patients with advanced forms of breast cancer. Although fulvestrant demonstrated significant antitumor activity, it did not significantly impact the overall survival rate of breast cancer patients when compared to letrozole.