“…In this study, we showed that faecal CP levels in psoriatic patients were higher than the normal range and these levels decreased after 24 weeks of biological therapy, in particular anti-IL23. These results were partially in line with studies from the literature, in fact the increase in CP levels (serum and faecal) were investigated in various inflammatory diseases such as axial spondyloarthritis (axSpA), rheumatoid arthritis (RA), IBD, PsA and psoriasis [ 30 , 31 , 32 , 33 ].…”