OBJECTIVE To develop and introduce evidence-based guidelines for the selection of 5 commonly used treatment modalities--UV-B, photochemotherapy, methotrexate, acitretin, and cyclosporine--for adult patients with severe plaque form psoriasis. PATIENTS AND SETTING Patients, residents, and dermatologists from the Department of Dermatology of the Academic Medical Center of the University of Amste...

IMPORTANCE Nail psoriasis can be difficult to treat and has a significant effect on quality of life. Relatively few controlled trials evaluating treatments for nail psoriasis have been published. There is an unmet need for treatment recommendations to guide therapeutic decisions. OBJECTIVE To develop treatment recommendations for nail psoriasis from the Medical Board of the National Psoriasis...