Auris Medical Completes Enrollment of Phase 1b Proof-Of-Concept Trial of AM-201 in Antipsychotic-Induced Weight Gain
Hamilton, Bermuda, July 03, 2019 (GLOBE NEWSWIRE) -- Auris Medical Holding Ltd. (NASDAQ: EARS), a clinical-stage company dedicated to developing therapeutics that address important unmet medical needs in neurotology and central nervous system disorders, today announced that it has completed enrollment in its Phase 1b proof-of-concept trial of AM-201, the Company’s investigational drug for the prevention of antipsychotic-induced weight gain and somnolence.
The Phase 1b trial with AM-201 is being conducted at one site in Europe. The trial enrolled in total 50 healthy volunteers who received either AM-201 or placebo concomitantly with the antipsychotic drug olanzapine over four weeks. The study is testing five different doses of AM-201 under a dose escalation protocol. The primary efficacy outcome for the study will be the reduction in weight gain and the secondary outcome will be the reduction in somnolence.
“Completing enrollment for this proof-of-concept study is another important step forward with our AM-201 development program,” commented Thomas Meyer, Auris Medical’s founder, Chairman and CEO. “Excessive weight gain and somnolence are major side effects of antipsychotic drugs that frequently have a major impact on patient well-being and quality of life. We look forward to the upcoming top-line results from this trial, which are expected in the coming months.”
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. Betahistine for oral admin-istration is approved in about 115 countries, with the US being a notable exception, for the treatment of vertigo and Meniere’s disease. 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 4 to 26 times higher bioavailability.
Intranasal betahistine is being developed under project code AM-201 for the prevention of antipsychotic-induced weight gain and somnolence. Many antipsychotic drugs are known to block the H1 histamine receptor, which is involved in the control of appetite and wakefulness, resulting in weight gain and somnolence as side effects. As an H1 receptor agonist, betahistine is thought to counteract the antipsychotics’ inhibitory effects; in addition, betahistine blocks presynaptic H3 histamine autoreceptors, thus increasing histamine release and in turn augmenting betahistine’s direct agonistic effects on H1 receptors.
About Auris Medical
Auris Medical is a biopharmaceutical company dedicated to developing therapeutics that address important unmet medical needs in neurotology and CNS disorders. The company is focused on the development of intranasal betahistine for the treatment of vertigo (AM-125) and for the prevention of antipsychotic-induced weight gain and somnolence (AM-201). These projects have gone through two Phase 1 trials and moved into proof-of-concept studies in 2019. In addition Auris Medical has two Phase 3 programs under development: Sonsuvi® (AM-111) for acute inner ear hearing loss and Keyzilen® (AM-101) for acute inner ear tinnitus. The Company was founded in 2003 and is headquartered in Hamilton, Bermuda with its main operations in Basel, Switzerland. The shares of Auris Medical Holding Ltd. trade on the NASDAQ Capital Market under the symbol “EARS.”
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Edison Advisors for Auris Medical
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