( he second half of 2007 and expects to s...)NeurogesX Announces Presentation of Positive Phase 3 Clinical Data,at the Second International Congress on Neuropathic Pain Meeting,(NeuPSIG),Health

About NGX-4010

NGX-4010 is a physician-administered dermal patch containing a TRPV1 agonist which targets small nerve fibers in the skin at the site of neuropathic pain. Clinical studies to date indicate that a single 30 or 60 minute administration of NGX-4010 may result in clinically meaningful pain relief for up to 12 weeks. NGX-4010 is designed to work locally in the skin without significant absorption into the bloodstream, possibly allowing users to avoid the side effects of current treatment options, such as anti- convulsants, anti-depressants and opioids.

About NeurogesX

NeurogesX is a biopharmaceutical company focused on developing novel pain management therapies. The Company's initial focus is on chronic peripheral neuropathic pain, including PHN, painful HIV-distal sensory polyneuropathy (HIV-DSP), and diabetic neuropathy. NeurogesX's late stage product portfolio is led by product candidate NGX-4010, a dermal patch designed to manage pain associated with peripheral neuropathic pain conditions that offers significant advantages over other pain therapies. Two Phase 3 trials with NGX-4010 have been completed and have met their primary endpoints, one in PHN and one in HIV-DSP. NGX-4010 has been granted Orphan Drug and Fast Track Status for HIV-DSP by the FDA.

Safe Harbor Statement

This press release contains forward-looking statements for purposes of the Private Securities Litigation Reform Act of 1995 (the "Act"). NeurogesX disclaims any intent or obligation to update these forward-looking statements, and claims the protection of the Safe Harbor for forward-looking statements contained in the Act. Examples of such statements include, but are not limited to, statements relating to the filing for regulatory approvals and the ti
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