FDA approves Allergan’s BOTOX to treat overactive bladder

Published on January 19, 2013 at 2:13 AM · No Comments

Allergan, Inc. (NYSE:AGN) announced today that the U.S. Food and Drug Administration (FDA) has approved BOTOX® (onabotulinumtoxinA) for the treatment of overactive bladder (OAB) with symptoms of urge urinary incontinence, urgency and frequency in adults who have had an inadequate response to or are intolerant of an anticholinergic medication. In two double-blind, randomized, multi-center, placebo-controlled 24-week clinical trials among adults with overactive bladder who had not been adequately managed with anticholinergic treatments, BOTOX® reduced daily urinary incontinence (leakage) episodes as compared to placebo by 50 percent or more by week 12 (reduction of 2.5 episodes from baseline of 5.5 episodes in one study and reduction of 3 episodes from baseline of 5.5 episodes in the second study for those treated with BOTOX® vs. a reduction of 0.9 episodes from a baseline of 5.1 episodes in one study and a reduction of 1.1 episodes from a baseline of 5.7 episodes in the second study for those treated with placebo).

"Allergan has a long-standing commitment to study the potential of BOTOX® to treat a number of different medical conditions," said Scott Whitcup, M.D., Allergan's Executive Vice President, Research and Development, Chief Scientific Officer. "With today's approval, BOTOX® is now approved for 26 different indications in more than 85 countries. Most importantly, today's FDA approval is a milestone in the treatment of this burdensome condition and will provide a novel option for urologists and their OAB patients."

While the exact cause is often unknown, OAB is a medical condition that results in an uncontrolled urge to urinate, frequent urination and, in many patients, uncontrollable leakage of urine. In the United States, an estimated 14.7 million adults experience symptoms of OAB with urinary incontinence (unexpected leakage of urine). Anticholinergics, which are often prescribed as pills, are used by approximately 3.3 million Americans with OAB, with or without urinary incontinence, to manage their condition. It is estimated, however, that greater than 50 percent of these patients stop taking at least one oral medication within 12 months, likely due to an inadequate response to, or intolerance of, the medication.

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