New York-based Immunovant Inc.’s phase IIa results with neonatal Fc receptor (FcRn)-targeting IMVT-1401 in thyroid eye disease (TED), also known as Graves’ ophthalmopathy, prompted renewed speculation about the space, hot since the approval on Jan. 21 of Tepezza (teprotumumab-trbw) from Horizon Therapeutics plc, of Dublin.