Efficacy of Etretinate (Tigason®) in Clearing and Prevention of Relapse of Palmoplantar Pustulosis

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Abstract
A total of 40 patients with palmoplantar pustulosis (PPP) were initially treated with oral etretinate (Tigason) in an open trial with a maximum treatment period of 16 weeks. Remission, with only slight residual changes in some cases, was achieved in 26 patients (65%) who were randomized to either a low dose of Tigason or placebo. In the Tigason group, 7 of 11 patients were still in remission after 6 months while in the placebo group, remission persisted in 4 of the 10 patients who stayed in the study throughout the whole 6 months’ period. Alopecia led to stopping the treatment in 6 patients and desquamation of the healthy skin in 2 patients. Other side-effects were only mild. As a conclusion, Tigason shows a beneficial effect in the majority of patients with PPP and is better than placebo in preventing relapse of the disease but intolerable side-effects restrict its use in many patients.