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Author: Hon A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand, December 2016.
Tumour necrosis factor (TNF) is a cytokine associated with inflammatory disorders of the skin, joints and gastrointestinal tract.
The most active anti-TNF drugs are monoclonal antibodies targeted against TNF-alpha (TNFα). Anti-TNFα drugs control inflammation in inflammatory skin diseases, arthritis, and bowel disease. They were among the first biologic agents on the market.
Anti-TNFα monoclonal antibodies include:
Other drugs with activity against TNF include:
Natural compounds acting against TNF include:
What skin conditions are anti-TNFs used for?
The anti-TNF monoclonal antibodies are used mainly in the treatment of severe chronic plaque psoriasis. They are also used for other severe inflammatory skin diseases when conventional therapies have failed. Examples include:
What are risks of anti-TNF drugs?
Anti-TNF biologics are given by injection. They can sometimes cause injection site reactions or infusion reactions. They should be avoided in patients with severe heart failure.
The main risk of anti-TNF therapy is reduced immunity to bacterial, fungal, viral and parasitic infections, including:
They may also increase the risks of skin cancers and autoimmune diseases, including demyelinating conditions.
Anti-TNFs can lose their effect over time, possibly because of the induction of antibodies against them. Paradoxically, anti-TNFs can sometimes result in dermatological side effects, such as:
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The New Zealand approved datasheet is the official source of information for this prescription medicine, including approved uses and risk information. Check the New Zealand datasheet on the Medsafe website.
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