Notably, there is an elevated expression of genes mixed up in PD-1/PD-L1 pathway after treatment with both of these agents. fulvestrant or letrozole. In the PALOMA-1/TRIO-18 trial, a stage 2 randomized control trial (RCT) performed in sufferers with metastatic ER-positive BC, sufferers were randomized into groupings receiving the aromatase inhibitor Continue Reading