|View printer-friendly version|
Auris Medical Announces Positive Interim Data from TRAVERS Phase 2 Study with AM-125 in Vertigo
- Dose dependent improvement in balance tests over placebo in Part A of TRAVERS trial
- Improvement 1.9 to 2.4 times greater with highest dose than with placebo
- Trial to proceed with Part B to test AM-125 10 and 20 mg vs. placebo
The interim analysis was based on Part A of the trial, which enrolled 33 patients suffering from vertigo following neurosurgery who were treated with AM-125 1, 10 or 20 mg or placebo (3 x daily) for four weeks. It demonstrated a dose-dependent improvement in balance as well as good safety and tolerability of ascending doses of AM-125. At the highest dose of 20 mg (3 x daily), AM-125-treated patients improved their performance of the “Tandem Romberg” and the “Standing on Foam” balance tests from baseline to 14 days post-surgery (primary endpoint) on average 1.9 to 2.4 times more than placebo-treated patients (6.0 vs. 3.1 and 10.5 vs. 4.3 seconds, respectively). In contrast to placebo, the improvement from baseline was statistically significant for AM-125 20 mg and for all active dose groups, respectively (p<0.02 and p<0.01 to p<0.05, respectively). These positive results were supported by similar improvements in additional efficacy measures, including additional objective as well as clinician- and patient-reported outcomes.
“We are very excited and encouraged by the good safety and tolerability as well as the strong and consistent signals of AM-125’s clinical efficacy observed in this first part of the TRAVERS trial,” commented
Based on the results from the interim analysis, the two highest doses, 10 and 20 mg, were selected by the Company to be tested against placebo in 72 patients in Part B of the trial. As the Company remained blinded to treatment allocation during the interim analysis, the corresponding data from Part A will be pooled with those from Part B. The improvement in the “Standing on Foam” test will become the sole primary efficacy endpoint. This test measures how long patients are able to maintain balance on a foam mat (to obscure proprioceptive input) with their eyes closed (to eliminate visual input), relying primarily on vestibular input from their inner ears. The improvement in the more challenging “Tandem Romberg” test, which is performed with eyes closed and the two feet to aligned one after the other, will become the key secondary efficacy endpoint. Prior to starting Part B of the trial, open label testing of oral betahistine for reference purposes will be completed (n=16).
Betahistine is a small molecule structural analog of histamine, which acts as an agonist at the H1 and as an antagonist at the H3 histamine receptors. Unlike histamine, it crosses the blood-brain-barrier. It is known to enhance inner ear and cerebral blood flow, increase histamine turnover and enhance histamine release in the brain, increase release of acetylcholine, dopamine and norepinephrine in the brain and to result in general brain arousal. The compound has a very good safety profile, yet it is also known that its clinical utility is held back by poor bioavailability. Intranasal administration of betahistine has been shown to result in 5 to 29 times higher bioavailability.
Intranasal betahistine is being developed under project code AM-125 for the treatment of acute vertigo. Betahistine has been shown to increase cochlear, vestibular and cerebral blood flow, facilitate vestibular compensation and inhibit neuronal firing in the vestibular nuclei. Betahistine for oral administration is approved in about 115 countries, with the US being a notable exception, for the treatment of vertigo and Meniere’s disease.
This press release may contain statements that constitute “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements are statements other than historical facts and may include statements that address future operating, financial or business performance or Auris Medical’s strategies or expectations. In some cases, you can identify these statements by forward-looking words such as “may”, “might”, “will”, “should”, “expects”, “plans”, “anticipates”, “believes”, “estimates”, “predicts”, “projects”, “potential”, “outlook” or “continue”, or the negative of these terms or other comparable terminology. Forward-looking statements are based on management’s current expectations and beliefs and involve significant risks and uncertainties that could cause actual results, developments and business decisions to differ materially from those contemplated by these statements. These risks and uncertainties include, but are not limited to, Auris Medical’s need for and ability to raise substantial additional funding to continue the development of its product candidates, the ability to pursue strategic partnering and non-dilutive funding for its Phase 3 programs, the results of Auris Medical’s review of strategic options and the outcome of any action taken as a result of such review, the timing and conduct of clinical trials of Auris Medical’s product candidates, the clinical utility of Auris Medical’s product candidates, the timing or likelihood of regulatory filings and approvals, Auris Medical’s intellectual property position and Auris Medical’s financial position, including the impact of any future acquisitions, dispositions, partnerships, license transactions or changes to Auris Medical’s capital structure, including future securities offerings. These risks and uncertainties also include, but are not limited to, those described under the caption “Risk Factors” in Auris Medical’s Annual Report on Form 20-F for the year ended
Edison Advisor for
1 Agrawal Y et al. (2009), Disorders of Balance and Vestibular Function in US Adults - Data From the
Source: Auris Medical AG