HLA-B and cutaneous mastocytosis: In patients with SOC in the chronic phase with CM-related SJS/TEN, an association has been noted between HLA-A*02:06 in Japanese and Koreans, HLA-B*44:03 in Indian, Brazilian Caucasians, Thai, and Japanese populations, and HLA-C*07:01 in the Indian and Thai population (Ueta, 2015; Jongkhajornpong et al., 2018).