Press Release

 
VGX Pharmaceuticals Announces the Completion of Patient Enrollment
for the Company’s Phase II Trial for VGX-410C

Blue Bell, PA – September 2, 2007 –

VGX Pharmaceuticals announced the completion of patient enrollment for VGX-410C, its lead product candidate for treating HCV infection. VGX-410C is currently in a multi-site, multi-dose, and double-blind Phase II study for assessing the drug’s safety and antiviral effects.

VGX had completed the patient enrollment stage for the lower dosage arms (150 mg & 300 mg) earlier in 2007. The Company has now completed enrollment of the last patient in the highest dosage group (600 mg). The patients are treated with either drug or placebo for 28 days and are also followed for additional 28 days. These studies are currently conducted at the University of Connecticut, Orlando Clinical Research Center and the University of Pennsylvania. VGX Pharmaceuticals expects the final data to be unblinded and the Phase II studies for VGX-410C be completed by the end of 2007.

VGX-410C represents the first drug in a novel class of HCV IRES inhibitors under development. VGX-410C prevents HCV replication by suppressing HCV translation and ultimately blocking the HCV replication process. It is an orally active, small-molecule drug.

In addition, the Company also stated that PICTOVIR™, a novel anti-HIV compound, has completed dosing of patients in 2 lower dose groups (300 mg and 600 mg per day) in a multi-site, multi-dose, and double-blind Phase II study for assessing the drug’s safety and anti-HIV effects. The Company is now preparing a safety report to the FDA summarizing the tolerability of these doses in HIV infected patients and to determine whether to test a higher dose of PICTOVIR™ (1200 mg) or a lower dose PICTOVIR™ used in combination with other front-line treatments. All current HIV drug regimens consist of 3 or 4 drugs used in combination to increase efficacy and reduce the development of resistance of the virus to the drugs.


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About VGX Pharmaceuticals
VGX Pharmaceuticals is a biopharmaceutical company with small molecule and biologic product candidates for the treatment of infectious diseases, cancer and inflammatory diseases. The Company's clinical development programs include PICTOVIR™ for HIV infection and VGX-410C for chronic HCV infection, both of which are currently in Phase II clinical trials. In addition, VGX is planning to initiate Phase I clinical studies for VGX-1027, its lead compound for inflammatory diseases. VGX's research pipeline include a new generation of DNA vaccines and therapeutics as well as CELLECTRA™, a patented DNA delivery device. The product candidates and technology programs are protected by the Company's extensive global intellectual property portfolio. More information about VGX can be found at www.vgxp.com.

Company Contact:
Kevin W. Rassas
Senior Vice President
Tel. 267.440.4208
Fax 267.440.4242
E-mail: Rassas@vgxp.com
www.vgxp.com

© 2007 VGX Pharmaceuticals. All rights reserved.