A Phase 3, Parallel-group, Randomized, Double-blind, 4-arm, Placebo-controlled, Multicenter Study With Risankizumab as Active Reference Arm, to Investigate the Efficacy and Safety of Subcutaneous Sonelokimab in Male and Female Participants Aged 18 Years and Over With Active Psoriatic Arthritis and Previous Inadequate Response or Intolerance to Tumor Necrosis Factor-α Inhibitors

Inclusion Criteria: 1. Participants must be ≥18 years of age . 2. Participants have a confirmed diagnosis of psoriatic arthritis (PsA) per the 2006 Classification for Psoriatic Arthritis (CASPAR) criteria with symptoms for ≥6 months before the Screening Visit. 3. Participants have active disease (defined by a 68 tender joint count \[TJC68\] of ≥3 and a 66 swollen joint count \[SJC66\] of ≥3). 4. Participants have current active plaque psoriasis (PsO) or a dermatologist-confirmed history of plaque PsO. 5. Participants test negative for both rheumatoid factor and anti-cyclic citrullinated pepti…