TorreyPines Therapeutics Completes Patient Enrollment in Phase IIb Clinical Trial of Tezampanel for the Treatment of Acute Migrain... (mportant milestone for us said Neil Kur...)

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TorreyPines Therapeutics Completes Patient Enrollment in Phase IIb Clinical Trial of Tezampanel for the Treatment of Acute Migraine Headache

Date:8/19/2007

mportant milestone for us," said Neil Kurtz, M.D., President and Chief Executive Officer of TorreyPines. "We believe tezampanel has the potential to offer migraine patients an important new treatment option with a novel mechanism of action and we remain on track to announce top line results from the study during the fourth quarter of this year."

In previous clinical trials, tezampanel has been administered to more than 200 healthy adult volunteers or patients. In five Phase IIa, placebo-controlled trials using intravenous administration, tezampanel demonstrated proof of concept in multiple pain models. In one placebo and active-controlled clinical trial in patients with acute migraine, the compound achieved statistical significance in all primary and secondary endpoints traditionally required for regulatory approval. These endpoints included pain relief at two hours, pain-free at two hours and relief of nausea, photophobia and phonophobia.

About AK Receptor Antagonists

AMPA/kainate (AK) receptors are part of the glutamate biological pathway that transmits pain signals to the brain. In addition, these receptors play a critical role in the development of central sensitization phenomena -- a key component of many pain syndromes, including migraine and persistent pain states such as chronic neuropathic pain. AK receptor antagonists selectively bind to certain AK receptors to block transmission of pain signals mediated through the activation of a subtype of glutamate receptors. Because they do not bind to opioid receptors, directly bind to serotonin receptors or constrict blood vessels, the safety profile of AK antagonists may offer important advantages over existing drugs to treat migraine and other chronic pain conditions.

About Migraine

Migraine is a painful neurological condition characterized by an intense and disabling episodic headache. According to the National Headache Foundation, an estimated 30 million people in the U.S. suffer fr
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SOURCE TorreyPines Therapeutics, Inc.

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TorreyPines Therapeutics Completes Patient Enrollment in Phase IIb Clinical Trial of Tezampanel for the Treatment of Acute Migrain...(mportant milestone for us said Neil Kur...),Health