A Study of Guselkumab and Golimumab Combination Therapy in Participants With Active Psoriatic Arthritis

PsA is a chronic inflammatory multi-faceted disease that impacts the peripheral and axial joints, soft tissues, and skin. Guselkumab is a fully human monoclonal antibody (mAb) directed against the p19 subunit of interleukin (IL)-23, blocks the binding of extracellular IL-23 to the cell surface IL-23 receptor, inhibiting IL-23 specific intracellular signaling, subsequent activation, and cytokine production. Golimumab is a fully human anti-TNF-alpha mAb that binds to TNF-alpha with high affinity, prevents binding to its receptors, thereby inhibiting the biological activity of TNF-alpha and resulting in limited production or activity of inflammatory cytokines, thereby providing therapeutic benefit in various chronic inflammatory disorders, including PsA. This study will consist of a Screening Phase (up to 6 weeks), Double-blind Phase from Weeks 0 to 24 which includes the active treatment phase and the primary efficacy visit (Week 24), and Safety Follow-up Phase from Week 24 to Week 36. Key safety assessments will include adverse events (AEs), clinical laboratory safety tests (hematology and chemistry), vital signs, monitoring for injection-site and hypersensitivity reactions, and early detection of active tuberculosis (TB). The total duration of the study is up to 42 weeks.