No unexpected safety signals were found in an integrated analysis of data from three clinical trials of ixekizumab in patients with psoriatic arthritis (PsA). Exposure to ixekizumab over 1,822.2 patient years was evaluated across data from the SPIRIT-P1, SPIRIT-P2 and SPIRIT-P3 trials. The incidence rates for serious adverse events and serious infections remained stable over time, whereas the incidence rates for general infections and injection-site reactions decreased with exposure to ixekizumab. The main opportunistic infections reported were herpes zoster and oral or oesophageal Candida.