Efficacy of Calcipotriol Plus Betamethasone Gel Versus Calcipotriol Scalp Solution in Scalp Psoriasis

Main Inclusion Criteria: * Scalp psoriasis amenable to topical treatment * Psoriasis vulgaris on trunk and/or limbs * Extent of scalp psoriasis involving more than 10% of the total scalp area * Disease severity on the scalp graded as moderate or worse by the investigator * Consenting out-patients of 18 years or above Main Exclusion Criteria: * PUVA or Grenz ray therapy within 4 weeks prior to randomisation * UVB therapy within 2 weeks prior to randomisation * Systemic treatment with biological therapies, with a possible effect on scalp psoriasis within 6 months prior to randomisation * Systemic treatment with all other therapies than biologicals, with a possible effect on scalp psoriasis (e.g., corticosteroids, vitamin D analogues, retinoids, immunosuppressants) within 4 weeks prior to randomisation * Any topical treatment of the scalp (except for non steroid medicated shampoos and emollients) within 2 weeks prior to randomisation * Topical treatment of the face, trunk and/or limbs with very potent WHO group IV corticosteroids within 2 weeks prior to randomisation * Current diagnosis of erythrodermic, exfoliative or pustular psoriasis