LEO 90100 Twice Weekly Maintenance Regimen for Psoriasis Vulgaris

After an initial 4-week period of once-daily treatment with open-label active LEO 90100 aerosol foam, subjects who qualify for randomisation will continue into a 52-week maintenance treatment period with twice-weekly application of randomised LEO 90100 aerosol foam / LEO 90100 aerosol foam vehicle. If the subject experiences a relapse of psoriasis, the active lesions will be treated for 4 weeks with open-label active LEO 90100 aerosol foam.