Press Release

 
VGX Pharmaceuticals Initiates the Phase II Clinical Trials of VGX - 410C for the Treatment of Chronic Hepatitis C Infection

BLUE BELL, P.A. – September 26, 2005 –

VGX Pharmaceuticals announced today that the company has initiated Phase II clinical trials of VGX-410C for the treatment of chronic hepatitis C (HCV) infection. The company received the Investigative New Drug application (IND) approval from the Food and Drug Administration (FDA) in August of 2005. The Phase II clinical trials for VGX-410C are currently in progress at the Hospital of the University of Pennsylvania and expected to be completed by the third quarter of 2006.

VGX-410C is an investigational drug for treatment of chronic hepatitis C infection. There are over 170 million people living with HCV infection globally. It is estimated about 5 million Americans have HCV infection. Currently approved drugs are effective only in about 30% to 50% of patients with chronic hepatitis C infection in the United States. Additionally, those approved drugs are toxic in many patients, resulting in discontinuation of treatment.

"This is an important milestone both for VGX Pharmaceuticals and for the treatment of chronic HCV infection," says J. Joseph Kim, Ph.D., President and CEO of VGX Pharmaceuticals. "VGX-410C represents the first drug in a novel class of HCV IRES inhibitors under development. It is an orally active, small-molecule drug that provides once a day convenience." VGX-410C prevents HCV replication by suppressing early HCV translation, ultimately blocking the HCV replication process. As all the genotypes of HCV use the same pathway, this drug target could be effective for all HCV genotypes. "VGX-410C could make a significant impact for HCV treatment." said Dr. Kim.


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About VGX Pharmaceuticals
VGX Pharmaceuticals is a biopharmaceutical company with product candidates for the treatment of infectious diseases including HIV, hepatitis C as well as cancer and inflammatory diseases. The Company’s clinical development programs include PICTOVIR™ for HIV infection and VGX-410C for chronic hepatitis C virus infection. In addition, VGX Pharmaceuticals’ therapeutic platform is designed to advance a strong and continual pipeline of drug candidates into the clinic with novel product candidates to treat cancer and inflammatory diseases. 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
Vice President
Tel 267.440.4208
Fax 267.440.4242
E-mail: Rassas@vgxp.com
www.vgxp.com