HLA-B and melanoma: Studies have shown the positive association of the HLA‐B44 class I supertype, influenced by HLA‐B*18:01, HLA‐B*44:02, HLA‐B*44:03, HLA‐B*44:05 and HLA‐B*50:01, on improved survival of melanoma patients treated with PD‐1 or CTLA‐4 targeting Abs; while HLA‐B62 association driven by the HLA‐B*15:01 allele was found to associate with poor survival outcomes.34