Regeneron Pharmaceuticals Inc. said today clinical studies have shown its Arcalyst drug to be effective in reducing incidents of sudden pain in patients with gout, a form of arthritis.
In tests of 83 patients, Arcalyst reduced the number of gout flares 81 percent in patients prescribed allopurinol, a drug used to reduced the amount of excess uric acid in the blood that is known to trigger acute spasms of joint pain and inflammation, the Eastview-based biopharmaceutical company said.
None of the patients experienced any side effects from Arcalyst, an injected drug. The successful completion of the Phase 2 clinical trial opens the door for Phase 3 studies, which Regeneron expects to begin early next year, it said.
Arcalyst, Regeneronâ€™s only marketable drug, was approved earlier this year for treatment of a rare auto-inflammatory condition known as CAPS. Shares of Regeneron rose nearly 6 percent in trading today to end at $21.80 a share, up $1.22.
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