Breakthrough fertility method may keep estrogen low during cancer treatment

This study tested a new ovarian stimulation protocol using degarelix (a drug typically used for prostate cancer) to help breast cancer patients preserve their fertility before chemotherapy. The goal was to keep estrogen levels low while still collecting enough eggs for freezing. The study included 8 women aged 18-40 with invasive ductal breast cancer who needed chemotherapy. Researchers measured how many follicles (egg sacs) developed and whether estrogen stayed at safe levels.