FibroGen’s Roxadustat Rejected By US FDA Panel Due To Safety Concerns, Untested Dosing Strategy

But advisory committee members see a potential opportunity for the oral anemia drug in small percentage of dialysis-dependent patients not responsive to erythropoiesis-stimulating agents; FibroGen’s revised dosing algorithm, aimed at slowing hemoglobin rate of increase and reducing risk of thrombosis, needs to be clinically tested before marketing approval, panelists said.