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Substance P Antagonist Aprepitant Shows no Additive Effect Compared with Standardized Topical Treatment Alone in
Louise Lönndahl1, Mikael Holst, Maria Bradley
1Dermatology and Venereology Unit, Department of Medicine Solna, Karolinska University Hospital, Karolinska Institutet, SE-17176 Stockholm, Sweden. louise.lonndahl@ki.se.
Abstract:
Atopic dermatitis (AD) is a chronic, itchy, inflammatory skin disorder that may worsen due to stress and anxiety. Tachykinins have been suggested to be involved in the inflammation in AD, as well as pruritus. Aprepitant is a NK-1 receptor antagonist. This open randomized trial evaluated the effect of aprepitant added to topical treatment in adult patients with moderate-severe AD. The treatment group (n = 19) received 80 mg/day aprepitant for 7 days as a supplement to standardized topical treatment with a moderately strong steroid and a moisturizer. The control group (n = 20) received topical treatment alone. Patients were monitored for the extent of the disease (using SCORing of Atopic Dermatitis; SCORAD), pruritus, and scratching movements. In both the aprepitant-treated and the control groups there was a decrease in SCORAD, pruritus and scratching movements. However, there was no significant additional improvement in any of these parameters in the aprepitant-treated group compared with the control group.
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