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Treatment of localized psoriasis with a topical formulation of zinc pyrithione.

Author information

1
Skin Disease and Leishmaniasis Research Center, Isfahan University of Medical Sciences, Isfahan, Iran. sadeghian@sdlrc.mui.ac.ir

Abstract

BACKGROUND:

Psoriasis is a common chronic condition of the skin that is resistant to many therapies.

AIM:

To test the efficacy of a topical formulation of zinc pyrithione in an emollient base compared with an emollient alone in the treatment of psoriasis.

METHODS:

This was a randomized double-blind clinical trial. Patients with localized psoriasis involving less than 10% of body skin areas were enrolled in the study. They were randomly allocated to one of two treatment groups. Group A was treated with emollient cream containing 0.25% zinc pyrithione and group B was treated with emollient cream alone twice daily for 3 months. Response to treatment was assessed using PASI scores.

RESULTS:

Of 60 participants, 30 patients in group A and 30 patients in group B completed the study. The mean PASI scores before and after treatment were 3.4±1.8 and 0.9±1.3 in group A (p<0.01), and 4.3±2 and 3.9±1.3 in group B (p>0.05), and there was a significant difference between the two groups' mean PASI scores at the end of the study (p<0.01). The differences in the mean PASI scores before and after treatment were 2.4±2 and 0.4±0.1 in groups A and B, respectively (p<0.01).

CONCLUSION:

A topical formulation of zinc pyrithione can be used to treat localized psoriasis.

PMID:
22367374
[Indexed for MEDLINE]
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