NeurogesX Announces Publication of NGX-4010 Phase 3 HIV-Neuropathy Study Results in...( SAN MATEO Calif. June 10 / Neurog...),Health

SAN MATEO, Calif., June 10 /PRNewswire-FirstCall/ - NeurogesX, Inc. (Nasdaq: NGSX), a biopharmaceutical company focused on developing and commercializing novel pain management therapies, announced today the publication of Phase 3 data of its lead product candidate, NGX-4010, in the journal Neurology. The paper, titled, "Controlled Trial in High-Concentration Capsaicin Patch for Treatment of Painful HIV Neuropathy," will appear in the June 10, 2008 edition. The topline results from the C107 study were presented in February 2006 by study investigator and lead author, Dr. David Simpson, Professor of Neurology and Director of Clinical Neurophysiology Laboratories and Neuro-AIDS Program at The Mount Sinai Medical Center.

The Phase 3 trial was a randomized, double blind, multicenter, controlled study involving 307 patients with painful HIV-associated distal sensory polyneuropathy (HIV-DSP) receiving a single application of NGX-4010, a high-concentration capsaicin patch. In this trial, the primary endpoint was achieved with a statistically significant reduction in pain over a 12-week period. The NGX-4010 application was well tolerated with the most common side effects being transient application site reactions.

About NeurogesX, Inc.

NeurogesX (Nasdaq: NGSX) is a biopharmaceutical company focused on developing and commercializing novel pain management therapies. Its initial focus is on chronic peripheral neuropathic pain, including postherpetic neuralgia (PHN), painful HIV-distal sensory polyneuropathy (H
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