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      Biologic therapies in the treatment of psoriasis: a comprehensive evidence-based basic science and clinical review and a practical guide to tuberculosis monitoring.

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          The treatment of psoriasis has undergone a revolution with the advent of biologic therapies including infliximab, etanercept, adalimumab, efalizumab, golimumab, certolizumab, alefacept, secukinumab, abatacept, and ustekinumab. These medications are designed to target specific components of the immune system and are a major technological advancement over traditional immunosuppressive medications. Herein, we present a comprehensive, unbiased comparison of these medications focusing on their differences. For example, TNF antagonists can differ in the way they are dissolved and administered, the effector molecules they can bind, serum peak and trough levels, the types of intracellular signals they can induce, the in vivo complexes that they can form, their protein structure, and their incidence and timing of rare adverse events, among other things. A critical review of the clinical studies that have tested the efficacy of these molecules is also presented including head-to-head comparison trials. The safety of biologics in terms of their long-term adverse events is discussed, as is their use in different types of psoriasis and in different patient populations. Finally, all anti-TNF agents have been associated with a variety of serious and "routine" opportunistic infections, particularly tuberculosis. For this reason, anti-tuberculosis testing both prior to the initiation of a biologic therapy and annually during treatment is pertinent. The uses and limitations of both the tuberculin skin test (TST) and QuantiFeron®-TB Gold (QFT) are discussed, as is the care of patients who present with latent tuberculosis infection prior to the initiation of biologic therapy. Recommendations for tuberculosis monitoring are provided.

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          Author and article information

          Clin Rev Allergy Immunol
          Clinical reviews in allergy & immunology
          Apr 2013
          : 44
          : 2
          [1 ] Department of Dermatology, School of Medicine, University of California, Davis, 3301 C Street, Suite 1400, Sacramento, CA 95816, USA.


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