Biologic naïve participants will be randomly assigned in a 2:1 ratio to receive secukinumab or adalimumab for 24 weeks. Participants with a history of an inadequate response to secukinumab or adalimumab, will be treated with the alternative drug (adalimumab or secukinumab) for 24 weeks. The disease activity and index of inmunology will be evaluated at weeks 0, 12, 24 up to 96 weeks.
The purpose of this study is to evaluate the clinical efficacy, safety and immunological changes of secukinumab(sec) compared to adalimumab(ada) in patients with active ankylosing spondylitis(AS), who previously have an inadequate response to non-steroidal anti-inflammatory drugs (NSAIDs) or bioagents.