Abstract
Psoriatic arthritis (PsA) is a destructive form of inflammatory arthritis that occurs in about one-third of patients with psoriasis. The pathogenesis of PsA includes genetic and immunological factors. A review of the currently available therapies reveals that traditional disease-modifying medications have provided only marginal relief from joint inflammation in patients with PsA, and have not been successful in controlling the disease and preventing joint damage. On the basis of current understanding of the pathogenesis of joint destruction in PsA, several new medications have been introduced, including anti-tumour necrosis factor (TNF) agents and agents that interfere with T-cell function. Most of these medications have been found to be effective in both psoriasis and PsA. Recent randomised controlled trials suggest that at least anti-TNF agents may help prevent progression of joint destruction.
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