Abstract
Biologics have emerged as an exciting new therapy for the treatment of psoriasis and psoriatic arthritis. Currently, four biologics are approved by the U.S. Food and Drug Administration (FDA) for the treatment of moderate to severe psoriasis, including alefacept (Amevive), efalizumab (Raptiva), etanercept (Enbrel) and infliximab (Remicade). A fifth, adalimumab (Humira), is being studied in late-stage clinical trials. The use of biologics in patients with psoriasis and concurrent co-morbidities has not been extensively studied. Because several of the biologics have been used for many years to treat other immune-mediated diseases such as rheumatoid arthritis and Crohn's disease, more data exist on their use in these patients with co-morbidities. Here, we review the literature and offer our opinions on the appropriate use of alefacept, efalizumab, etanercept, infliximab and adalimumab in patients with psoriasis and specific co-morbidities, including multiple sclerosis, tuberculosis, heart failure, cancer, hepatitis C, HIV and renal failure.
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