Still more interesting lessons from GiACTA, this time re: nature of GCA flares on TCZ: - visual manifestation flares were rare - ESR or CRP raised in 3/4 of flares (so not raised in 1/4) Understanding these flares is crucial! Unizony et al @MGHMedicine #ACR20 ABST0516 @RheumNow https://t.co/WVIitov7Ut