|Year : 1991 | Volume
| Issue : 6 | Page : 307-308
Topical corticosteroid pulse therapy in psoriasis
YC Minocha, VK Sood, D Singh, KB Minocha
Y C Minocha
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Minocha Y C, Sood V K, Singh D, Minocha K B. Topical corticosteroid pulse therapy in psoriasis. Indian J Dermatol Venereol Leprol 1991;57:307-8
|How to cite this URL:|
Minocha Y C, Sood V K, Singh D, Minocha K B. Topical corticosteroid pulse therapy in psoriasis. Indian J Dermatol Venereol Leprol [serial online] 1991 [cited 2019 Jun 24];57:307-8. Available from: http://www.ijdvl.com/text.asp?1991/57/6/307/3717
Topical corticosteroid pulse therapy comprises of intermittent use of superpotent corticosteroids. Prolonged continuous therapy with such agents in patients with psoriasis results in certain side effects e.g. telangiectasis and cutaneous atrophy,  hypothalamic-pituitary-adrenal (HPA) axis suppression  and tachyphylaxis,  whereas intermittent therapy may achieve beneficial effects for maintenance of remissions with an advantage of diminishing the side effects and total cost of medication.
In this study, 40 patients with psoriasis presenting as discoid plaques were included to evaluate the efficacy of topical pulse therapy with clobetasol propionate (0.05%). In each patient, a solitary test site lesion was selected and scored in terms of 'erythema', 'induration; and 'scaling' grading each sign from score of '0' to '3'. The total area of the target lesion was measured before starting the therapy and at subsequent follow up visits. Adjusted clinical scores (ACS) were calculated using following formula.
Erythema + Induration + Scaling
(0-3) (0-3) (0-3)
x % age of original area
Initially, all the patients were treated with daily topical application of clobetasol propionate (0.05%) for a period of 3 weeks and patients showing improvement of more than 85% in their ACS were submitted to topical pulse therapy by weekly topical treatment with three consecutive applications at 12 hourly intervals. Clinical evaluation and target area measurements were performed every 2 weeks for a period of 12 weeks. A patient was considered to be a treatment failure if the ACS of target lesion was greater than 35% of the repulse therapy baseline assessment.
Out of 40 patients treated with a single topical application of clobetasol propionate (0.05%) daily for 3 weeks, 26 patients achieved at least 85% improvement of the target area as compared with the baseline. During topical pulse therapy of these 26 patients 5 patients dropped out and 14 out of 21 patients remained in remission, whereas 7 patients showed relapse at varying intervals during the period of study. In 5 of these 7 patients the mean ACS exceeded 35% of the baseline clinical score, while 2 patients developed flare up of new lesions at other sites. No major side effects were observed except for occurrence of pustular lesions at local sites in two patients.
Intermittent topical therapy with corticosteroids helps to reduce the side effects and prevents tachyphylaxis. This study provides evidence of beneficial effects of topical pulse therapy with clobetasol propionate (0.05%) given at weekly intervals. Achievement of remission upto a period of 12 weeks in 66.6% patients of psoriasis correlates well with the findings of Katz et a1 , who observed 73.8% of patients to respond to betamethasone dipropionate (0.05%). Hradil et a1 , also reported success with intermittent use of clobetasol propionate by achieving remissions upto a period 21 weeks in 75% of cases, whereas van Dick et a1 , did not find any significant difference between continuous and intermittent therapy though the total dose of the corticosteroids required to control the disease was much less with intermittent therapy.
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