Some cases of subacute cutaneous lupus erythematosus (CLE) and systemic lupus erythematosus (SLE) are drug-induced, according to a study published online in JAMA Dermatology.

Jeanette Halskou Haugaard, M.D., from the Herlev and Gentofte University Hospital in Denmark, and colleagues examined the association between drug use and a subsequent diagnosis of CLE or SLE. The Danish National Patient Register (2000 through 2017) was used to identify 1,298 patients with CLE, 1,850 with SLE, and 31,480 age- and sex-matched controls.

"The study's findings suggest that physicians should be cognizant about whether a new case of CLE or SLE could be drug induced," the authors write.

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