Coates LC, et al. - The goal of this study was to assess the dynamics of treatment response with different composite measures in the TIght COntrol of inflammation in early Psoriatic Arthritis (TICOPA) trial. Composite measures of disease activity were able to distinguish between TICOPA treatment arms, although differences were diminished for those with oligoarthritis. Further data is needed to inform the preferred composite measure for use as the primary outcome in PsA trials.