Racial disparities in the risk of Stevens-Johnson Syndrome and toxic epidermal necrolysis as urate-lowering drug adverse events in the United States

These national data indicate that Asians and Blacks have a substantially higher risk of SJS/TEN as ULDAEs than Whites (or Hispanics), correlating well with corresponding frequencies of HLA-B*5801 in the US population (i.e., 7.4%, 4%, 1%, and 1%, respectively). Given its market dominance and established association with SJS/TEN, our findings support the use of vigilance in these minorities when considering allopurinol.