Ustekinumab associated thrombotic thrombocytopenic purpura
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Thrombotic thrombocytopenic purpura (TTP) is a rare disorder. Plasma exchange therapy has been shown to significantly reduce mortality in patients with TTP. Here, we report a case of TTP associated with ustekinumab therapy after a period of 2-3 years. Ustekinumab, a monoclonal antibody that inhibits interleukin 12 and interleukin 23, is one of the newer treatments for psoriasis. Although our patient experienced a prolonged course of TTP requiring 1 month of daily plasma exchange therapy, he recovered and remains in remission after 6 months.
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