Cortex Receives UK Regulatory Approval To Initiate A Clinical Study In Sleep Apnea With Its AMPAKINE CX1739

Main Category: Sleep / Sleep Disorders / Insomnia
Also Included In: Clinical Trials / Drug Trials
Article Date: 29 Jan 2009 - 0:00 PDT


Cortex Pharmaceuticals, Inc. (NYSE Alternext US (COR)) announced that the UK's Medicines and Healthcare product Regulatory Agency (MHRA) gave it permission to proceed with the clinical development of CX1739 in subjects with moderate to severe sleep apnea. The study will be conducted in a UK sleep unit using a double-blind, placebo-controlled design in 20 subjects.

Sleep apnea is a chronic disorder characterized by pauses in breathing during sleep, with the most common type being obstructive sleep apnea. Each episode, called an apnea, lasts long enough so that one or more breaths are missed. Such episodes occur repeatedly throughout sleep and may result in significantly reduced blood oxygenation. If left untreated, sleep apnea can lead to an increased risk of stroke, heart attacks, hypertension, obesity and Type II, maturity onset diabetes, as well as an increased risk of accidents due to excessive sleepiness. The National Institute of Health estimates that over 12 million American adults have sleep apnea. There is currently no drug treatment option available for sleep apnea and the market is considered a multi-billion dollar opportunity in North America alone.

"CX1739 has been very well tolerated in Phase I healthy volunteer studies, and we are excited to be able to proceed with an efficacy study in sleep apnea," said Dr. Mark Varney, President and Chief Executive Officer of Cortex. "We anticipate starting subject enrollment in February and completing the study in the second quarter of 2009."

Data obtained from animal studies have demonstrated that AMPAKINE compounds can specifically stimulate breathing by activating regions in the brain stem. In 2008, Cortex announced positive results of two clinical studies that demonstrated the AMPAKINE CX717 could prevent the depression of breathing induced by an opioid analgesic. Further analyses of these clinical studies also showed that CX717 reduced both the number and duration of apnea events caused by the opioid. Studies in animals suggest that CX1739 is approximately three times better than CX717 at reversing breathing depressed by opioids. CX1739 also stimulates another brain region that regulates muscle tone in the upper airways. "Our hypothesis is that by stimulating breathing and increasing muscle tone in the upper airways, CX1739 will be effective in maintaining breathing throughout the night in sleep apnea patients," commented Dr. Varney.

Cortex Pharmaceuticals, Inc.

Cortex, located in Irvine, California, is a neuroscience company focused on novel drug therapies for treating psychiatric disorders, neurological diseases and brain-mediated breathing disorders. Cortex is pioneering a class of proprietary pharmaceuticals called AMPAKINE compounds, which act to increase the strength of signals at connections between brain cells. The loss of these connections is thought to be responsible for memory and behavior problems in Alzheimer's disease. Many psychiatric diseases, including schizophrenia, occur as a result of imbalances in the brain's neurotransmitter system. These imbalances may be improved by using the AMPAKINE technology. For additional information regarding Cortex, please visit the Company's website at http://www.cortexpharm.com.

Forward-Looking Statement

This press release contains forward-looking statements concerning the Company's research and development activities. Words such as "believes," "anticipates," "plans," "expects," "indicates," "will," "intends," "potential," "suggests," "assuming," "designed" and similar expressions are intended to identify forward-looking statements. These statements are based on the Company's current beliefs and expectations. The success of such activities depends on a number of factors, including the risks that the Company's proposed products may at any time be found to be unsafe or ineffective for any or all of their proposed indications; that patents may not issue from the Company's patent applications; that competitors may challenge or design around the Company's patents or develop competing technologies; that the Company may have insufficient resources to undertake proposed clinical studies; and that preclinical or clinical studies may at any point be suspended or take substantially longer than anticipated to complete. As discussed in the Company's Securities and Exchange Commission filings, the Company's proposed products will require additional research, lengthy and costly preclinical and clinical testing and regulatory approval. AMPAKINE compounds are investigational drugs and have not been approved for the treatment of any disease. Readers are cautioned not to place undue reliance on these forward-looking statements that speak only as of the date of this press release. The Company undertakes no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date of this press release or to reflect the occurrence of unanticipated events.

Cortex Pharmaceuticals, Inc.

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