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Febuxostat: a review of its use in the treatment of hyperuricaemia in patients with gout

James E Frampton
Drugs 2015, 75 (4): 427-38
25724536
Febuxostat (Adenuric(®), Uloric(®), Feburic(®)) is an orally-active, potent, non-purine, selective xanthine oxidase inhibitor. In the EU, it is indicated in adults for the treatment of chronic hyperuricaemia in conditions where urate deposition has already occurred. Unlike allopurinol, the prototypical xanthine oxidase inhibitor that is the cornerstone therapy for chronic gout, febuxostat does not require dosage adjustment in patients with mild or moderate renal impairment. In randomized, double-blind studies, 6-12 months' treatment with febuxostat at dosages approved for use in the EU (80 and 120 mg/day) was significantly more effective in lowering serum uric acid (sUA) levels in patients with hyperuricaemia and gout than allopurinol at dosages commonly prescribed in practice (100-300 mg/day); febuxostat demonstrated greater urate-lowering efficacy than allopurinol in patients with renal impairment. In open-label extension studies, 3-5 years' treatment with febuxostat maintained a target sUA level of <6.0 mg/dL in most patients; sustained reduction in sUA level was associated with near elimination of gout flares and improved tophus status. Febuxostat therapy was generally well tolerated during clinical development; frequently reported adverse events included liver function abnormalities, diarrhoea and rash. Cardiovascular (CV) events were the most common serious adverse events; the comparative safety of febuxostat and allopurinol is being examined further in large, ongoing trials in patients with gout who already have, or are at risk of developing, CV disease. In conclusion, febuxostat is a well established antihyperuricaemic agent that provides an effective alternative to allopurinol for the management of chronic gout.

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