Journal
JOURNAL OF THE EUROPEAN ACADEMY OF DERMATOLOGY AND VENEREOLOGY
Volume 26, Issue -, Pages 21-29Publisher
WILEY
DOI: 10.1111/j.1468-3083.2011.04412.x
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Funding
- Abbott
- Amgen
- Astellas
- Boehringer Ingelheim
- Celgene
- Centocor
- Genentech
- Merck
- Novartis
- Pfizer
- Abbott Immunology
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The introduction of the biologic agents, adalimumab, etanercept, infliximab and ustekinumab, has provided more options for the short- and long-term treatment of patients with psoriasis. Physicians are now able to achieve and maintain effective disease control in more patients using biologic therapies. Newly published clinical data support the introduction of novel optimization strategies to further improve outcomes in patients with psoriasis. Recent randomized controlled clinical trials have provided data on the efficacy of conventional therapies, including systemic agents, and biologics at specific time points. Switching from methotrexate to a tumour necrosis factor (TNF)-a antagonist after 16 weeks can improve response rates, as demonstrated in a study of patients with moderate-to-severe psoriasis, while the benefit of long-term methotrexate use remains unclear. In a separate study, psoriasis area and severity index (PASI) =75 response rates were maintained over time (>3 years for adalimumab), suggesting that long-term biologic therapy is an effective and sustainable treatment option for psoriasis. For each individual patient, the benefit of a particular treatment needs to be balanced with the risks. The lack of head-to-head trials of antipsoriatic therapies, particularly biologic therapies, does not help with making individualized treatment decisions. However, a benefitrisk assessment of TNF-a antagonists calculated from an integrated analysis of published literature in moderate-to-severe psoriasis can be used to aid clinical practice. The number needed to treat, number needed to harm and number of patient years of observation to detect an adverse event have been determined for adalimumab, etanercept and infliximab. The benefitrisk profiles generated demonstrated that, during the initial year of treatment, likelihood of success with TNF-a antagonists was several orders of magnitude greater than the likelihood of serious toxicity.
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