Sinovac Biotech today announced the initiation of volunteer enrollment in its Phase II clinical trial for its split pandemic influenza vaccine

BEIJING, CHINA | June 30, 2008 | Sinovac Biotech Ltd. (News), a leading provider of vaccines in China, today announced the initiation of volunteer enrollment in its Phase II clinical trial for its split pandemic influenza vaccine. The preliminary results from this study are expected to be available in early 2009.

The randomized and double-blind trial is expected to enroll 210 adolescents, between the ages of 12 to 17, who will receive doses of 10ug, 15ug or 30ug, and 140 children, between the ages of 3 to 11, who will receive doses of 10ug or 15ug. Volunteers will be followed for two months with safety and immunogenicity data collected for the assessment of the vaccine.

Mr. Weidong Yin, Chairman, President and CEO, commented, 'Split influenza vaccine is believed to cause less adverse reactions in children compared to whole-viron influenza vaccine. Sinovac's split pandemic influenza vaccine aims at protecting the pediatric and adolescent population. Based on the positive safety results of the Phase I trial, the Phase II study will be conducted to further collect the vaccine's safety data in children and adolescents, as well as assessing the immunogenicity of different doses.'

Sinovac received approval from the China State Food and Drug Administration (SFDA) in April 2007 to conduct clinical trials for two types of the H5N1 vaccine, namely Phase Ib and II trials of the H5N1 whole viron vaccine and Phase I and Phase II trials of the H5N1 split vaccine. In December 2007, Sinovac reported positive top-line results from the completed Phase II clinical trial of Panflu(TM), its pandemic influenza (H5N1) whole viron inactivated vaccine. In April 2008, Panflu(TM) was granted a production license by the China State Food and Drug Administration (SFDA). Panflu(TM) is the first and only approved vaccine available in China against the H5N1 influenza virus.

About Sinovac

Sinovac Biotech Ltd. is a China-based biopharmaceutical company that focuses on the research, development, manufacture and commercialization of vaccines that protect against human infectious diseases. Sinovac's commercialized vaccines include Healive(R) (hepatitis A), Bilive(R) (combined hepatitis A and B), Anflu(R) (influenza) and Panflu(TM) (H5N1). Sinovac is currently developing Universal Pandemic Influenza vaccine and Japanese encephalitis vaccine. Additional information about Sinovac is available on its website, http://www.sinovac.com/ . To be added to our distribution list, please email: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

SOURCE: Sinovac Biotech Ltd.

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