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Anaheim-based drug maker Questcor Pharmaceuticals Inc.’s shares rose recently on news of more new prescriptions for its sole drug.
Questcor’s shares rose as high as 9% in Wednesday trading before closing up 6%.
The drug maker counted a recent market value of about $1.7 billion.
Questcor said Wednesday that it expected new paid prescriptions for Acthar in treating multiple sclerosis exacerbations to exceed 850 in the current quarter. Acthar costs $40,000 to $50,000 a prescription for that usage.
Questcor said the prescription number was up 13% from the second quarter and up 160% from a year ago.
Analyst Yale Jen of New York-based Maxim Group LLC told Investor’s Business Daily that the market responded because the increases beat preliminary prescription results that Questcor released on Sept. 10, which estimated only a 10% gain.
Acthar, Questcor’s only drug, is also used to treat a rare form of epilepsy called infantile spasms, besides multiple sclerosis flares and nephrotic syndrome, which is a kidney disease. Questcor also estimated that it would get 55 paid prescriptions in the current quarter for nephrotic syndrome at about $100,000 per prescription, up 22% from the second quarter.