CLINICAL TRIAL
COMPARATIVE STUDY
JOURNAL ARTICLE
MULTICENTER STUDY
RANDOMIZED CONTROLLED TRIAL
RESEARCH SUPPORT, NON-U.S. GOV'T
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Comparative study of calcipotriene (MC 903) ointment and fluocinonide ointment in the treatment of psoriasis.

BACKGROUND: The topical vitamin D analogue calcipotriene has been reported to be an effective treatment for patients with psoriasis. Comparative studies with topical steroids are informative in judging this new therapy.

OBJECTIVE: The purpose of this study was to evaluate the efficacy and safety of calcipotriene ointment 0.005% versus fluocinonide ointment 0.05% in the treatment of plaque psoriasis.

METHODS: This study was a randomized, double-blind, parallel-group, active-controlled trial in adults who had at least mild overall disease severity and plaque elevation of at least moderate severity. Treatments were applied twice daily for 6 weeks, and subjects were evaluated at weeks 0, 2, 4, and 6. Subjects were graded on a 9-point scale (0 to 8) for scaling, erythema, plaque elevation, and for overall disease severity. A physician's global assessment of improvement/worsening was performed at every visit.

RESULTS: A total of 114 subjects were enrolled at six study sites. Ninety-nine subjects completed the trial. Mean scores for signs of scaling and plaque elevation in calcipotriene-treated subjects were significantly lower by week 2 than in the fluocinonide-treated subjects. These scores continued to be significantly lower than fluocinonide through week 6 (p < 0.05). Mean scores for erythema in calcipotriene-treated subjects were significantly lower than those in fluocinonide-treated subjects at weeks 4 and 6 (p < 0.05). Both the physician's global assessment and overall disease severity showed statistically significant treatment differences in favor of calcipotriene at week 4 (p < 0.05). This superior efficacy continued through week 6. Treatment-related adverse events were observed in 12 calcipotriene-treated subjects and 5 fluocinonide-treated subjects; all were considered minor.

CONCLUSION: Calcipotriene was superior to fluocinonide in the treatment of plaque psoriasis.

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