“…In this trial, dosing of ustekinumab followed the recommendations for psoriasis, namely 45 and 90 mg per injection for patients weighing ≤100 or >100 kg, respectively, and the authors also observed that ustekinumab could determine a significant modulation of Th1, Th17 and Th22 and Th2-related AD genes after 4 weeks of treatment (i.e., MMP12, IL-22, IL-13, IFN-γ, elafin/PI3, CXCL1, CCL17) [102]. In addition, other authors reported inadequate response to ustekinumab treatment in two adult AD patients even if with the addition of aggressive topical corticosteroid therapy, whereas Lis-Święty et al observed an exacerbation of AD under ustekinumab therapy in a psoriatic patient with a childhood history of atopy [103, 104]. In summary, data regarding ustekinumab efficacy in adult AD are controversial and scant, with the only existing double-blind placebo-controlled study lacking evidence of statistically significant efficacy.…”