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Allergan and Gedeon Richter Announce Positive Phase III Results for Ulipristal Acetate 5 and 10 mg in the Treatment of Uterine Fibroids

17 Jan 17

Allergan Plc and Gedeon Richter today announced positive results from Venus II, the second of two pivotal phase III clinical trials evaluating the efficacy and safety of ulipristal acetate in women with abnormal bleeding due to uterine fibroids.  A new drug application filing for ulipristal acetate is planned for the second half of 2017.

"We are pleased with the favorable results of Venus II supporting the efficacy and safety profile of ulipristal acetate as shown in our Venus I trial," said David Nicholson, Chief Research and Development Officer, Allergan. "Allergan is committed to identifying, developing and bringing to market therapies that address unmet need and provide significant value to the healthcare system, including a potential new treatment for symptomatic uterine fibroids.  We are confident that the results of our phase III trials for ulipristal acetate may potentially offer the first and only oral treatment option for women suffering from uterine fibroids in the U.S."

The study included 432 U.S. patients with 162 and 157 patients randomized to ulipristal acetate 5 and 10 mg respectively, and 113 to placebo. The average age of patients enrolled was 41 years and 67 percent of enrolled patients were Black/African Americans. The study met all the co-primary and secondary endpoints with both ulipristal treatment arms achieving statistically significant results over placebo (p<0.0001). The co-primary efficacy endpoints were percentage of patients with absence of uterine bleeding and time to absence of uterine bleeding on treatment during Treatment Course One (12-week duration).  Significantly more patients in the 10 mg group (54.8%) and the 5 mg group (42.0%) achieved absence of bleeding compared to placebo (0%).

The secondary efficacy endpoints were the percentage of patients with absence of uterine bleeding from Day 11 to end of the first treatment course; the percentage of patients with absence of uterine bleeding after the second treatment course; time to absence of uterine bleeding on treatment during treatment course two; and the change from baseline in the UFS-QOL revised Activities subscale at the end of the first treatment course. 

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