There were no differences between cytokine concentrations at baseline and after six months of pirfenidone treatment in patients with IPF: 0.09 (0.06–0.13) vs 0.04 (0.0–0.14) pg/mL for IL-6 (p = 0.184); 0.0 (0.0–0.0) vs 0.0 (0.0–0.04) pg/mL for IL-8 (p = 0.441), and 4.9 (4.27–7.12) vs 6.54 (0.0–10.92) pg/mL for VEGF-A (p = 0.653) at baseline and after six months of treatment (Figure 3). The gene discussed is CXCL8; the disease is idiopathic pulmonary fibrosis.