The study subjects must have moderate psoriasis of the body and scalp with an ISGA of 3 at baseline. In addition, the subjects must have an evaluable target lesion of at least 2 cm² on the body with a score of 2 or 3 for erythema, scaling and plaque. All subjects will apply Calcipotriene Foam, 0.005% or vehicle foam topically twice a day (am and pm) to all psoriatic lesions on the body and scalp. Study visits will occur at baseline (day 1) and at weeks 1, 2, 4, and 8.
The purpose of this study is to determine the safety and effectiveness in the treatment of psoriasis on the scalp and on the body.