A Study Evaluating the Efficacy and Tolerability of Enstilar Foam in Patients With Nail Psoriasis

Inclusion Criteria: * Must have a diagnosis of nail psoriasis in fingernail or toenails * History of plaque psoriasis or psoriatic arthritis * Target nail will be KOH negative for dermatophyte fungus * Must give written informed consent prior to study procedures being conducted, also give consent to the release and use of protected health information (PHI) * Between the ages of 18 and 85 years old * Candidate for topical therapy in the opinion of the investigator Exclusion Criteria: * Males and Females unable to practice effective contraception throughout the study * Unable to comply with the protocol * Nursing mothers, pregnant women, and women planning to become pregnant while in this study * Patients with erythrodermic or pustular psoriasis * Sustained treatment to target fingernail within 6 months prior to screening * History of trauma or surgery to target fingernail * History of disease known to affect nails such as lichen planus, onychomycosis * History of systemic psoriasis therapy for less than 6 months