CD274 and cancer: No differences in OS were found between patients who started corticosteroids for cancer-related symptoms in the 30 days before starting immunotherapy or after starting anti-PD-(L)1 blockade: 5.2 months (95% CI, 0.3–4.6) vs. 6.4 months (95% CI, 1.1–4.3) (p = 0.898).