Ragifilimab (Anti-TNFRSF18 / GITR / CD357) is an anti-human glucocorticoid-induced tumor necrosis factor receptor (tumor necrosis factor superfamily, member 18; TNFRSF18; GITR; CD357) agonistic humanized monoclonal antibody with potential immune checkpoint modulating activity. MW : 145.5 KD.