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Diacerein 1% Ointment for the Treatment of Epidermolysis Bullosa Simplex: A Randomized, Controlled Trial
Background:
In epidermolysis bullosa simplex (EBS), epithelial structural fragility results in blisters and erosions. Diacerein 1% ointment has been shown to reduce this blistering.
Objective:
To evaluate the efficacy and safety of diacerein 1% ointment in the treatment of EBS.
Methods:
A double-blind study of 54 patients with EBS were randomized to diacerein 1% or vehicle ointment once daily. The primary endpoint ( ≥60% reduction in body surface area of EBS) and the key secondary endpoint ( ≥2-point reduction in the Investigator’s Global Assessment) were evaluated at 8 weeks.
Results:
There was no difference in the proportion of patients achieving either key efficacy endpoint between the diacerein 1% and vehicle groups (P>0.05). No difference in treatment emergent adverse events were noted between the groups. In post hoc analysis stratified by EBS subtypes, an IGA score of 0 or 1 was reported in 6 of 13 patients with severe EBS in the diacerein group (46.2%), compared with 2 of 13 patients with severe EBS in the vehicle group (15.4%); (relative risk= 3.08, 95% CI = 0.71, 13.4).
Conclusions:
Although there was no significant difference in outcomes between the groups, further study may elucidate the effects of diacerein on EBS lesions, especially in patients with severe EBS. Teng J, Paller AS, Bruckner AL, et al. Diacerein 1% ointment for the treatment of epidermolysis bullosa simplex: a randomized, controlled trial. J Drugs Dermatol. 2023;22(6):599-604. doi:10.36849/JDD.7108.
