No significant differences between responders or non-responders were observed in C-reactive protein (CRP) value at the time of diagnosis (49.7 ± 3 mg/l versus 25.0 ± 2 mg/l, p = 0.30), nor in damage extension index (DEI) at the time of diagnosis (7.2 ± 2 versus 7.9 ± 4 points, p = 0.81), or vasculitis damage index (VDI) score after 6 months of induction therapy (2.5 ±1 versus 3.7 ± 2 points). This evidence concerns the gene CRP and vasculitis.