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Biologics switch in psoriasis.

Aim: No guidelines exist for biologic switch in psoriasis after treatment failure. Although, switching between TNF-α antagonists has been reviewed, switching information about newer biologics is limited. Materials & methods: We did a thorough systematic review from 'PubMed' and 'Embase', which includes new biologics such as IL-12/IL-23 antagonists, IL-17A antagonists and IL-23 antagonists. Results & conclusion: New biologics such as IL-17 antagonist or IL-23 antagonist show greater responses in bio-experienced patients and could even be used for patients in whom previous treatments failed.