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FDA approves review of Regeneron Arcalyst sBLA

Regeneron has received US FDA approval for review of supplemental Biologics License Application (sBLA) for Arcalyst Injection for subcutaneous use to prevent gout flares in patients initiating uric acid-lowering therapy.

Arcalyst is used to treat Cryopyrin-Associated Periodic Syndromes (CAPS), including Familial Cold Auto-inflammatory Syndrome (FCAS) and Muckle-Wells Syndrome (MWS).

The sBLA submission for Arcalyst is backed by positive efficacy data from PRE-SURGE 1 and PRE-SURGE 2 Phase 3 trials.

Both the trials met the primary endpoint of reduction in the mean number of gout flares per patient during the 16-week treatment period in patients initiating uric acid-lowering therapy.