A clinical evaluation of the effects of an aromatic retinoid (Tigason), combination of retinoid and PUVA, and PUVA alone in severe psoriasis

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Abstract
Eighty ambulatory adult patients with severe psoriasis were included in our 14-week study to compare the clinical effects of treatment with an aromatic retinoid (Tigason), combination treatment with aromatic retinoid plus PUVA (RePUVA), and PUVA alone. RePUVA was given by two different modifications: either 4 weeks of pretreatment with retinoid followed by 6 weeks of PUVA treatment, or 10 weeks of retinoid treatment with concomitant PUVA treatment during the last 6 weeks. The latter modification of RePUVA proved to be significantly more effective than the other treatments (PP<0.001) reduction of total UVA doses to about one third as compared to PUVA therapy.