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Oct
19
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Allergan reports positive results from two phase 3 trials of onabotulinumtoxinA in female patients with OAB symptoms
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Allergan plc, a leading global pharmaceutical company, announced that results from an extension study of two phase 3 trials showed that long-term onabotulinumtoxinA treatment consistently decreased urinary incontinence in female patients with overactive bladder (OAB) symptoms of urge urinary incontinence, urgency and frequency in adults who have had an inadequate response to or are intolerant of an anticholinergic medication. Final results were presented in a podium session at the American Urogynecologic Society Meeting.

Findings were based on a multicenter, 3.5-year extension study assessing the long-term safety and efficacy of onabotulinumtoxinA treatment in 749 female patients with OAB. Patients who completed either of two 24-week, phase 3 trials were eligible to enter a 3-year extension study in which they received multiple onabotulinumtoxinA (100 units) treatments. Of the 749 female patients enrolled, more than half (53 per cent) completed the study. Discontinuations due to adverse events or lack of efficacy were low (4.8/5.3 per cent); other reasons were not treatment-related.

Data were analysed for the overall population of patients and within discrete subgroups of patients who received exactly 1, 2, 3, 4, 5, or 6 treatments of the 100U dose throughout the study. Mean reductions from baseline in urinary incontinence episodes/day (week 12; co-primary endpoint) were consistent among discrete subgroups of female patients who received 1 to 6 treatments. A consistently high proportion of patients reported improvement or great improvement on the Treatment Benefit Scale (week 12; co-primary endpoint) in the discrete subgroups across all treatments (69.6-100 per cent). Incontinence Quality of Life scores were consistently >2.5 times the minimal important difference (+10 points). The overall median duration of effect was 8 months (38.4 per cent >6 to <12 months). The most common adverse event was urinary tract infection, with no changes in safety profile over time.

“Results of this extensive 3.5-year study demonstrates consistent safety and efficacy of long-term onabotulinumtoxinA treatment in this population of female overactive bladder patients,” said Peter Sand, M.D., urogynecologist and clinical professor, North Shore University Health System, University of Chicago.

“These findings may help inform specialists treating patients with overactive bladder, that Botox is an effective and safe treatment option for patients not getting the relief from an anticholinergic.”

OAB is a condition where the bladder contracts uncontrollably, creating leakage, the strong sudden need to “go right away,” and going too often. It’s important to realize that OAB is not a “weak” bladder. In fact, OAB occurs when nerves are affected. These nerves send signals to your bladder at the wrong time, causing the muscle to squeeze without warning. This process causes your bladder to spasm uncontrollably, creating leakage, the strong sudden need to “go,” and going too often. Botox is approved to treat overactive bladder symptoms, such as a strong need to urinate with leakage, urgency and frequency in adults when another type of medication (anticholinergic) does not work well enough or cannot be taken.

Botox is a prescription medicine that is injected into the bladder muscle and used to treat overactive bladder symptoms such as a strong need to urinate with leaking or wetting accidents (urge urinary incontinence), a strong need to urinate right away (urgency), and urinating often (frequency) in adults 18 years and older when another type of medicine (anticholinergic) does not work well enough or cannot be taken and treat leakage of urine (incontinence) in adults 18 years and older with overactive bladder due to neurologic disease who still have leakage or cannot tolerate the side effects after trying an anticholinergic medication.



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