Press Release

 
VGX Pharmaceuticals and ADViSYS Announce Merger Agreement:
Creation of VGX Immune Therapeutics Division
Blue Bell, PA and THE WOODLANDS, TX – February 26, 2007 –

VGX Pharmaceuticals Inc., a privately held biopharmaceutical company, and ADViSYS, Inc., a privately held biotechnology company, today announced the signing of a definitive merger agreement. Concurrently, VGX Pharmaceuticals has created a new division called VGX Immune Therapeutics to maximize the Company’s current assets in the DNA field as well as the considerable expertise held by its founders and senior management in research and development of DNA-based vaccines and therapeutics. All acquired assets of ADViSYS, including its significant pipeline for DNA delivered therapeutics as well as DNA delivery and cGMP manufacturing capabilities will be added to VGX Immune Therapeutics. VGX Immune Therapeutics will focus on developing and commercializing DNA-based vaccines and therapeutics for major indications in the areas of infectious diseases and cancer.

This transaction marks the second major step in VGX Pharmaceuticals’ global strategy for growth. In November 2005, VGX Pharmaceuticals acquired a controlling interest of a publicly traded pharmaceutical company subsequently renamed as VGX International Inc. (Korean Stock Exchange: Stock Ticker No. 011000) to expand the Company’s overseas R&D, manufacturing and marketing capabilities.

“We are very excited to bring into our fold ADViSYS’ technologies and recognized leaders in the field of DNA manufacturing and delivery”, said Dr. J. Joseph Kim, President and CEO of VGX Pharmaceuticals. “The emergence of VGX Immune Therapeutics marks another key milestone in our growth as a global biopharmaceuticals company. The acquisition of ADViSYS’ strategic assets and expertise allows us unprecedented vertical control over the development of DNA-based therapies. As a result of this merger, VGX Pharmaceuticals will more than double the number of employees as well as synergistically enhance the combined product pipeline. The critical mass gained from this acquisition brings us one step closer to achieving our overall goal of becoming a publicly traded global biopharmaceutical company. We remain committed to creating value for our shareholders by being opportunistic in our strategy for growth via M&A activities.”

Ronald O. Bergan, Chairman of the Board of ADViSYS, said, “The therapeutic development programs underway at VGX represented a natural strategic fit for ADViSYS and the experience of VGX’s management team was a key consideration as we evaluated the merger. We are pleased to combine our assets with VGX’s clinical development programs to develop novel DNA delivered therapeutics.”

Kevin W. Rassas, Sr. VP of Business Development of VGX, added, “ADViSYS’ electrokinetic delivery (EKD) devices and proprietary technologies for DNA delivered therapeutics and vaccines complement well our management team’s considerable prior expertise in the field. As a part of this transaction, we will also acquire ADViSYS’ state of the art cGMP DNA plasmid manufacturing facility, which will be used to meet our internal clinical development needs and generate contract manufacturing revenues. VGX Immune Therapeutics Division will be uniquely positioned to provide a one-stop-shop solution to our academic collaborators and industry partners in rapidly advancing lead candidates through Phase I/II clinical studies.”

The addition of ADViSYS’ veterinary product pipeline also provides VGX Pharmaceuticals with late-stage/near-market products to balance the product development pipeline and to mitigate early-stage development risk faced by all drug development companies. The porcine-growth hormone releasing hormone (GHRH) application is presently undergoing pre-market regulatory review in Australia. Additionally, the animal health products have the potential to provide significant near-term revenues for VGX and the Company will be actively seeking commercialization partners to better access the global markets.

“Along with significant progress in conducting Phase II trials for our lead pharmaceutical candidates PICTOVIR® and VGX-410C as well as the advancements in planned IND filings for VGX-150 and VGX-1027 this year, the launch of VGX Immune Therapeutics marks another major event for VGX Pharmaceuticals.” added Dr. Kim.


Details of the Transaction

The merger agreement has been approved by the Boards of Directors of VGX and ADViSYS. Under the terms of the agreement, VGX will purchase all significant assets covering ADViSYS’ intellectual property including plasmid expression vectors, growth hormone releasing hormone and electrokinetic delivery technology. Additionally, VGX will acquire ADViSYS’ R&D and cGMP manufacturing operations at its Woodlands, Texas site.

Following the closing of the purchase agreement, ADViSYS assets will be merged into the newly created VGX Immune Therapeutics, a division of VGX Phamaceuticals, Inc. Kevin W. Rassas, Sr. VP of Business Development will oversee the integration of the two companies and will have operating responsibility over the new division. C. Jo White, Chief Medical officer of VGX will become Chief Medical Officer of the combined company. Gene Kim, Chief Financial Officer of VGX will become Chief Financial Officer of the combined company.


Cautionary Factors That May Affect Future Results - Materials in this Web site contain information that includes or is based upon forward-looking statements within the meaning of the Securities Litigation Reform Act of 1995. Forward-looking statements relate to expectations or forecasts of future events. You can identify these statements by the fact that they do not relate strictly to historical or current facts. They use words such as "anticipate," "estimate," "expect," "project," "intend," "plan," "believe," and other words and terms of similar meaning in connection with a discussion of potential future events, circumstances or future operating or financial performance. In particular, these include statements relating to future actions, prospective products or product approvals, future performance or results of current and anticipated products, sales efforts, expenses, the outcome of contingencies such as legal proceedings, and financial results. Any or all of our forward-looking statements here or in other publications may turn out to be wrong. They can be affected by inaccurate assumptions or by known or unknown risks and uncertainties. Many such factors will be important in determining our actual future results. Consequently, no forward-looking statement can be guaranteed, and forward-looking statements may be adversely affected by factors, including general market conditions, competitive product development, product availability, current and future branded and generic competition, federal and state regulations and legislation, manufacturing issues, timing of the elimination of trade buying, patent positions, litigations and investigations. Our actual results may vary materially, and there are no guarantees about the performance or valuation of VGX stock. It is also important to read the disclosure notice contained in many of the individual VGX documents available on this Web site as many contain important information on such cautionary factors as of the date of the individual document. We undertake no obligation to correct or update any forward-looking statements, whether as a result of new information, future events or otherwise. You are advised, however, to consult any further disclosures we make on related subjects in our reports.




About VGX Pharmaceuticals
VGX Pharmaceuticals is a leading biopharmaceutical company with strong product candidates for the treatment of infectious diseases including HIV and hepatitis C virus (HCV) as well as cancer and inflammatory diseases. The Company’s clinical development programs include PICTOVIR™ for HIV infection and VGX-410C for chronic HCV infection, which are currently in Phase II clinical trials. In addition, a Phase I clinical trial will be initiated in 2007 for the Company’s lead cancer drug compound, VGX-150 for the treatment of Melanoma. Moreover, VGX Pharmaceuticals’ therapeutic platform is designed to advance a strong and continual pipeline of additional drug candidates into the clinic with VGX-100 for cancer therapy and VGX-1027 and VGX-750 for inflammatory diseases currently in development. 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.

About ADViSYS
ADViSYS, Inc. is a biotechnology company founded as a Baylor College of Medicine Technology start-up in 1997 to develop and commercialize animal applications of growth hormone releasing hormone technology. ADViSYS has developed a new biopotential enhancement technology platform that allows the company to leverage applications discovered out of one species across multiple markets. The ADViSYS system is the result of leading-edge technology on multiple fronts:

Proprietary Plasmid Expression Vector:
Some of the plasmid systems contain muscle-specific elements that drive the expression of GHRH, while others encode for different intracellular or secreted proteins and are under the control of ubiquitous or tissue-specific promoters. The library of novel GHRH analogs and promoters is in various stages of clinical development with the lead product “porcine-GHRH” currently under regulatory review in Australia.

Electrokinetic Delivery System:
ADViSYS has developed proprietary technology for delivery of plasmids into skeletal muscle cells. This unique technology optimizes plasmid uptake and subsequent expression. When plasmids with historically low expression levels are delivered with the electrokinetic device, clinically effective results have been achieved.

Plasmid Production Process:
ADViSYS has developed a proprietary plasmid manufacturing scheme with process advantages that make it cost effective and scaleable. The process does not use any animal-derived products, carcinogens, organics or flammables and is therefore safe and acceptable to all regulatory agencies.

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