RecruitingPhase 4Drug trialToFAcitinib in Early Active Axial SpondyloarThritis:This is a phase IV, multicentre, randomized, double-blind, placebo-controlled study designed to compare the efficacy and safety of tofacitinib versus placebo (on a background of an NSAID) over 16 weeks of treatment and 4 weeks of safety follow-up in subjects with early active axSpA and inadequate response to at least one NSAID, with objective signs of inflammation.