Myelofibrosis patients with a PD‐L1 score <250 had a median overall survival of 130 months versus PD‐L1 score >250 of 64 months (hazard ratio 2.63, 95% CI; 0.82–8.4; p = .09), it was numerically longer but not statistically significant as shown in Figure 5. This evidence concerns the gene CD274 and myelofibrosis.