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Biopharmaceuticals Cardiology

 News Release - March 3, 2008

Vasogen Provides Update on ACCLAIM II Program

MISSISSAUGA, ON, March 3 (HSMN NewsFeed) - Vasogen Inc. (NASDAQ:VSGN ; TSX:VAS ) today provided an update on ACCLAIM II, a clinical trial which is being planned to support an application for U.S. market approval of the Celacade(TM) System for the treatment of patients with New York Heart Association (NYHA) Class II heart failure.

The Company announced in December that the FDA was examining its internal jurisdiction over Vasogen's Celacade System in the context of a newly issued draft guidance document to assess whether this document was relevant to Celacade. Previously, the FDA's Center for Devices and Radiological Health (CDRH) acted as lead reviewer of Celacade, with input from the Center for Biologics Evaluation and Research (CBER). The FDA has confirmed that Celacade will remain regulated as a medical device; however, CBER will be the lead reviewer of the Celacade technology, with CDRH providing input. The transition process from CDRH to CBER is now complete.

As part of the transition, on February 29, CDRH communicated to the Company that they now disagree with the use of a Bayesian approach because of a concern with recruiting a heterogeneous study population between ACCLAIM and ACCLAIM II. This is contrary to the FDA's original communication to Vasogen recommending a Bayesian study design, and, as part of its ongoing informal dialogue, the Company plans to provide the FDA with its position regarding the ACCLAIM II study population.

"The FDA's comments with respect to utilizing a Bayesian approach for the design of ACCLAIM II are surprising," commented Chris Waddick, President and CEO of Vasogen. "Our immediate focus will be to engage in discussions with the FDA to clarify their position on the proposed ACCLAIM II study protocol and statistical analysis plan and to work with members of the ACCLAIM II Steering Committee and our statistical advisors to address the FDA's concerns. We will provide an update to shareholders once we have had further discussions with the FDA."

Vasogen retained Berry Consultants and Dr. Donald A. Berry, Head, Division of Quantitative Sciences and Chairman, Department of Biostatistics, The University of Texas MD Anderson Cancer Center, and a world recognized authority in the area of Bayesian and adaptive trial design. Dr. Berry has been assisting Vasogen throughout the development of ACCLAIM II study design. Vasogen has also established the ACCLAIM II Steering Committee led by James B. Young, MD, Chairman, Division of Medicine at the Cleveland Clinic Foundation and Medical Director, Kaufman Center for Heart Failure, appointed Chairs for the Data and Safety Monitoring Board (DSMB) and Central Endpoint Committee (CEC), and has drafted the key trial documents necessary to initiate the trial. The Company has also selected a CRO and has identified and received commitments from U.S.-based clinical sites to participate in the study. The majority of these sites participated in the first ACCLAIM trial and were selected on the basis of their ability to quickly recruit patients and conduct high quality research.

About Vasogen:

Vasogen is a biotechnology company engaged in the research and commercial development of therapies designed to target the destructive inflammatory process associated with the development and progression of cardiovascular and neurodegenerative disorders. The Company's lead product, the Celacade(TM) System, is designed to activate the immune response to apoptosis - an important physiological process that regulates inflammation. Celacade has received European regulatory approval under the CE Mark for chronic heart failure and is being marketed in the EU by Grupo Ferrer Internacional, S.A. Celacade is also in late-stage clinical development for the treatment of chronic heart failure in the United States. Vasogen is also developing a new class of drugs for the treatment of certain neuro-inflammatory disorders. VP025 is the lead candidate from this new class of drugs.

Certain statements contained in this press release, or elsewhere in our public documents constitute "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and/or "forward-looking information" under the Securities Act (Ontario). These statements may include, without limitation, plans to advance the development of Celacade(TM) or VP025, plans to fund our current activities, statements concerning our partnering activities, health regulatory submissions, strategy, future operations, future financial position, future revenues and projected costs. In some cases, you can identify forward-looking statements by terminology such as "may", "will", "should", "expects", "plans", "anticipates", "believes", "estimated", "predicts", "potential", "continue", "intends", "could", or the negative of such terms or other comparable terminology. We made a number of assumptions in the preparation of these forward-looking statements, including assumptions about the nature, size, and accessibility of the market for Celacade in the treatment of chronic heart failure, particularly in Europe, the regulatory approval process leading to commercialization and the availability of capital on acceptable terms to pursue the development of Celacade, and the feasibility of additional trials. You should not place undue reliance on our forward-looking statements which are subject to a multitude of risks and uncertainties that could cause actual results, future circumstances or events to differ materially from those projected. These risks include, but are not limited to, the outcome of further ongoing analysis of the ACCLAIM trial results, the requirement or election to conduct additional clinical trials and the size and design of any such trials, delays or setbacks in the regulatory approval process, difficulties in the maintenance of existing regulatory approvals, securing and maintaining corporate alliances, the need for additional capital and the effect of capital market conditions and other factors on capital availability, the potential dilutive effects of any financing, risks associated with the outcomes of our preclinical and clinical research and development programs, the adequacy, timing, and results of our clinical trials, competition, market acceptance of our products, the availability of government and insurance reimbursements for our products, the strength of intellectual property, reliance on partners, subcontractors, and key personnel, losses due to fluctuations in the U.S.-Canadian exchange rate, and other risks detailed from time to time in our public disclosure documents or other filings with the Canadian and U.S. securities commissions or other securities regulatory bodies. Additional risks and uncertainties relating to our Company and our business can be found in the "Risk Factors" section of our Annual Information Form and Form 20-F for the year ended November 30, 2007, as well as in our later public filings. The forward-looking statements are made as of the date hereof, and we disclaim any intention and have no obligation or responsibility, except as required by law, to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Source: Vasogen

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