Treat-to-target strategy with secukinumab as a first-line biological disease modifying anti-rheumatic drug compared to standard-of-care treatment in patients with active axial spondyloarthritis: protocol for a randomised open-label phase III study, AScalate.

Introduction: In patients with axial spondyloarthritis (axSpA), biological disease-modifying anti-rheumatic drugs (bDMARDs) are recommended to those with inadequate response or contraindications to non-steroidal anti-inflammatory drugs (NSAIDs). In case of failure of the first bDMARD, a switch within the class or to other bDMARD is recommended. Despite these treatment options, there is no optimal treat-to-target (T2T) strategy.