Tofacitinib for Reduction of Spinal Inflammation in Patients With Psoriatic ArthritiS PresenTing With Axial InvOlvement

To evaluate the efficacy of Tofacitinib in reducing inflammation in the sacroiliac joints and spine on magnetic resonance imaging (MRI) in patients with active Psoriatic Arthritis (PsA) with axial Involvement (BASDAI \[Bath Ankylosing Spondylitis Disease Activity Index\] ≥ 4 and total backpain ≥ 4 despite treatment with NSAIDs plus evidence of active inflammation in the sacroiliac joints or spine on MRI).