Steroids Added to Dithranol and Narrow Band UVB(Ultraviolet B) (UVBnb) in Psoriasis

A Phase IV, Randomized, Double Blind, Placebo Controlled, Single-center Study of the Impact of Topical Steroids on Narrow Band UVB (Ultraviolet B) and Dithranol Combination Treatment of Psoriasis (DIPSO)

Objective(s):

(i) To assess the effect of adjunctive topical steroids in the combined treatment with UVBnb and dithranol on the remission time after therapy till a relapse of psoriasis defined as 50% loss of PASI (Psoriasis Area and Severity Index) improvement obtained through the antecedent treatment.

(ii) To assess the impact of adjuvant topical steroids in the combined treatment with UVBnb and dithranol on the clearing time of psoriasis lesions under therapy (PASI 75).

• Trial with medicinal product

(i) To assess the effect of adjunctive topical steroids in the combined treatment with UVBnb and dithranol on the remission time after therapy till a relapse of psoriasis defined as 50% loss of PASI (Psoriasis Area and Severity Index) improvement obtained through the antecedent treatment.

(ii) To assess the impact of adjuvant topical steroids in the combined treatment with UVBnb and dithranol on the clearing time of psoriasis lesions under therapy (PASI 75).

• Trial with medicinal product

Inclusion criteria:

• Moderate to severe psoriasis of the chronic-plaque and / or guttata type

Exclusion criteria:

• Participation in a Goeckerman therapy regimen within 6 months previous to the present study