Ventrus Biosciences Announces Positive Results From Pivotal Phase 3 Trial of Diltiazem (VEN 307) in Patients With Anal Fissures - $VTUS
Wednesday, May 16, 2012 at 3:56PM Ventrus Biosciences, Inc. (Nasdaq:VTUS -
News) today reported positive results from its Phase 3, randomized, double-blind, placebo-controlled clinical trial of diltiazem hydrochloride cream (VEN 307) in patients with anal fissures. Ventrus' development partner, S.L.A. Pharma, has completed most of the outputs for the statistical analysis plan of the Phase 3 trial, and Ventrus is pleased to communicate the data that they have generated.
The Phase 3 study randomized 465 subjects to diltiazem hydrochloride 4% or 2% w/w cream, or placebo, applied topically three times daily (TID) for 8 weeks, followed by a 4 week blinded observation period. Both 4% and 2% diltiazem treatment arms demonstrated significant improvements compared to placebo in the primary endpoint of average of worst anal pain associated with or following defecation (pain score improvement 0.44, p=0.0108, 4%; 0.43, p=0.0134, 2%) and in the secondary endpoints of overall anal-fissure-related pain (pain score 0.36, p=0.030, 4%; 0.40, p=0.0183, 2%) and anal fissure healing (32.7%, p=0.0181, 4%; 31.2%, p=0.0359, 2%). Pain endpoints were assessed using an 11-point numerical pain rating scale (Likert-like scale).
Adverse events (AEs) were similar for the three treatment arms. Gastrointestinal Disorders were the most common. Reports of headaches were similar in the three arms (14.7% of 4% diltiazem, 12.3% of 2% diltiazem, and 14.2% of placebo). There was one serious adverse event of surgery for hemorrhoid reported in this trial. The study was conducted in 31 centers in Europe by S.L.A. Pharma, the product candidate's licensor. Ventrus holds rights to diltiazem hydrochloride cream in North America.
Based on these results, Ventrus will request a meeting with the U.S. Food and Drug Administration (FDA) to discuss the Phase 3 diltiazem study, as well as steps to move forward toward a New Drug Application (NDA). Because diltiazem is approved in oral formulations for the treatment of angina and high blood pressure, it is eligible for the FDA's 505(b)2 registration pathway. The Company is also preparing to initiate a second pivotal Phase 3 study of VEN 307 in anal fissures in the second half of 2012.
"These results mark a watershed event for Ventrus, in that they highlight the potential for VEN 307 to be a treatment of choice for anal fissures and set off a potentially transformative period for the Company," said Russell H. Ellison, M.D., M.Sc., Chairman and Chief Executive Officer of Ventrus Biosciences, Inc. "The outcome of this study exceeded our expectations, demonstrating an improvement in all three measures of efficacy -- pain on defecation, average daily pain and healing -- results never before achieved in a single trial of a topical drug in this disorder. We look forward to next steps in the clinical and regulatory process, and to bringing VEN 307, as expeditiously as possible, to those suffering from anal fissures."
Dr. Ellison added: "We thank our partners and colleagues at S.L.A. Pharma for conducting a high quality, well executed study, and for their timely reporting of outcomes. These results come as Ventrus prepares for near-term pivotal data from a second pipeline product, VEN 309, in hemorrhoidal disease. Combined, these product candidates may represent very significant advancements for two of the most prevalent and underserved disorders in gastroenterology."




