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<SEC-DOCUMENT>0001127855-09-000351.txt : 20090827
<SEC-HEADER>0001127855-09-000351.hdr.sgml : 20090827
<ACCEPTANCE-DATETIME>20090827122549
ACCESSION NUMBER:		0001127855-09-000351
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20090818
FILED AS OF DATE:		20090827
DATE AS OF CHANGE:		20090827

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SINOVAC BIOTECH LTD
		CENTRAL INDEX KEY:			0001084201
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			B9
		FISCAL YEAR END:			0430

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32371
		FILM NUMBER:		091038573

	BUSINESS ADDRESS:	
		STREET 1:		39 SHANGDI XI ROAD
		STREET 2:		HAIDIAN DISTRICT
		CITY:			BEIJING
		STATE:			F4
		ZIP:			100085
		BUSINESS PHONE:		86-10-82890088

	MAIL ADDRESS:	
		STREET 1:		39 SHANGDI XI ROAD
		STREET 2:		HAIDIAN DISTRICT
		CITY:			BEIJING
		STATE:			F4
		ZIP:			100085

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NET FORCE SYSTEMS INC
		DATE OF NAME CHANGE:	19991110
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>sinovac6k081809.htm
<DESCRIPTION>SINOVAC BIOTECH 6K, 08.18.09
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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECURITIES AND EXCHANGE COMMISSION</font></div>
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Washington D.C. 20549</font></div>
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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">REPORT OF FOREIGN ISSUER</font></div>
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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):________________</font></div>
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<div style="DISPLAY: block; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SIGNATURE</font></div>
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<div style="DISPLAY: block; TEXT-INDENT: 18pt; TEXT-ALIGN: left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.</font></div>
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<td align="left" nowrap valign="top" width="35%" style="BORDER-BOTTOM: black 2px solid"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">/s/&#160;Weidong Yin</font></td>
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<td align="left" nowrap valign="bottom" width="35%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Name:&#160;&#160;&#160;Weidong Yin</font></td>
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<td valign="top" width="35%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Title:&#160;&#160;&#160;&#160;&#160; Chief Executive Officer, President</font></td>
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<td valign="top" width="50%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Date:&#160;&#160;August 17, 2009</font></td>
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<FILENAME>sinovacexh99_1.htm
<DESCRIPTION>SINOVAC BIOTECH 6K, PRESS RELEASE, 08.18.09
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<div style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt; TEXT-ALIGN: left" align="right"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman">SINOVAC REPORTS TOP-LINE PRELIMINARY RESULTS OF H1N1 VACCINE CLINICAL TRIALS</font></div>
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<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">BEIJING, Aug. 18 /PRNewswire-Asia/ -- Sinovac Biotech Ltd. (NYSE Amex: SVA), a leading provider of vaccines in China, announced today positive top-line results from the completed clinical trial for its internally-developed H1N1 vaccine. The clinical data unblinding conference was held in Beijing on the afternoon of August 17, 2009. Notably, Sinovac is the first company worldwide to complete clinical trials for the H1N1 vaccine.</font></div>
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<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The analysis of the clinical trial results showed that the H1N1 vaccine developed by Sinovac induces good immunogenicity after one dose. The seropositive rate, seroconvertive rate and GMT increasing multiple have reached the international criteria for vaccines, which indicates that Sinovac's H1N1 vaccine has good immunogenicity and offers protection.</font></div>
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<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">After receiving one shot of the vaccine, none of the volunteers participating in Sinovac's clinical trials exhibited any signs of severe adverse reactions. The adverse events were all mild and transient, with pain at the site of injection as the most common symptom. The total adverse event rate is similar to the seasonal influenza vaccine. These results demonstrated that the H1N1 vaccine has a good safety profile.</font></div>
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<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Mr. Weidong Yin, Chairman, President and CEO of Sinovac, commented, "As demonstrated in the clinical trial of our H1N1 vaccine, we can confirm the immunization schedule and dosage, which can provide the scientific reference to the state government to establish the inoculation strategy of H1N1 vaccine. Sinovac plans to complete the summary report as soon as possible and fully evaluate the safety and immunogenicity of the H1N1 vaccine.
Thereafter, we intend to apply for the Production License for H1N1 vaccine in compliance with SFDA's regulations."</font></div>
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<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The clinical trials were initiated in the Huai Rou district, Beijing City on July 22, 2009, with the design of single center, randomization and double blindness. The inoculation was completed on August 15, 2009. A total of 1,614 participants over 3 years old received the H1N1 vaccine. Blood samples were collected from the participants on the vaccination date, 14 days post vaccination date and 21 days post vaccination date. The National
Institute for the Control of Pharmaceutical and Biological Products (NICBPB), the central laboratory of China State Food and Drug Administration (SFDA), have completed the HI antibody tests on all blood samples.</font></div>
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<div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">This clinical trial was organized by China's Center for Disease Control (CDC), and undertaken by the Beijing CDC. The Ministry of Health (MOH) and the SFDA are continuing to closely monitor this clinical trial. Deputy Director General of MOH Disease Control Department Donglou Xiao, Director of SFDA Registration Section Wei Zhang, and other relevant experts visited the clinical site to inspect the clinical study.</font></div>
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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">About Sinovac</font></div>
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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">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&#174; (hepatitis A), Bilive&#174; (combined hepatitis A and B), Anflu&#174; (influenza),
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