<SEC-DOCUMENT>0000905718-11-000149.txt : 20110831
<SEC-HEADER>0000905718-11-000149.hdr.sgml : 20110831
<ACCEPTANCE-DATETIME>20110831171932
ACCESSION NUMBER:		0000905718-11-000149
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20110831
DATE AS OF CHANGE:		20110831

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ONCOGENEX PHARMACEUTICALS, INC.
		CENTRAL INDEX KEY:			0000949858
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		IRS NUMBER:				954343413
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-45969
		FILM NUMBER:		111069139

	BUSINESS ADDRESS:	
		STREET 1:		1522 217TH PLACE S.E.
		CITY:			BOTHELL
		STATE:			WA
		ZIP:			98021
		BUSINESS PHONE:		4254879500

	MAIL ADDRESS:	
		STREET 1:		1522 217TH PLACE S.E.
		CITY:			BOTHELL
		STATE:			WA
		ZIP:			98021

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SONUS PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19950825

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Abingworth LLP
		CENTRAL INDEX KEY:			0001397144
		IRS NUMBER:				980518585
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		38 JERMYN STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			SW1Y 6DN
		BUSINESS PHONE:		44 (0)20 7534 1500

	MAIL ADDRESS:	
		STREET 1:		38 JERMYN STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			SW1Y 6DN
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>oncog13g0811.htm
<DESCRIPTION>ONCOG13G0811
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Washington, D.C. 20549</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Under the Securities Exchange Act of 1934</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: normal">OncoGenex Pharmaceuticals, Inc.</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(Name of Issuer)</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: normal">Common Stock, $0.001&#160;par value per share</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(Title of Class of Securities)</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: normal">68230A106</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(CUSIP Number)</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: normal">August 12, 2011</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(Date of Event Which Requires Filing of this Statement)</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Check the appropriate box to designate the rule pursuant to which this Schedule 13G is filed:</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 36pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">[&#160;&#160;&#160;]&#160;&#160;Rule 13d-1(b)</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 36pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">[X]&#160;&#160;Rule 13d-1(c)</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 36pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">[&#160;&#160;&#160;]&#160;&#160;Rule 13d-1(d)</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">CUSIP No.<font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-WEIGHT: bold">&#160;</font>68230A106<font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;</font>13G&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Page 2 of 5</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">1</font></div>
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<td align="left" colspan="4" valign="top" width="90%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">NAME OF REPORTING PERSON</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;&#160; Abingworth LLP</div>

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<td align="left" valign="top" width="10%">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">2</font></div>
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<td align="left" colspan="3" valign="top" width="51%">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</font></font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(a) [&#160;&#160;&#160;]</font></div>
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<td valign="top" width="10%" style="BORDER-BOTTOM: black 2px solid"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160; </font></td>
<td colspan="3" valign="top" width="51%" style="BORDER-BOTTOM: black 2px solid"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160; </font></td>
<td align="left" valign="top" width="39%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(b) [&#160;&#160; ]</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block">&#160;</div>
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<td align="left" valign="top" width="10%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">3</font></div>
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<td align="left" colspan="4" valign="top" width="90%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">SEC USE ONLY</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block">&#160;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block">&#160;</div>
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<td align="left" valign="top" width="10%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">4</font></div>
</td>
<td align="left" colspan="4" valign="top" width="90%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">CITIZENSHIP OR PLACE OF ORGANIZATION</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;&#160; England</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block">&#160;</div>
</td>
</tr><tr>
<td align="left" colspan="2" rowspan="4" valign="top" width="32%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">NUMBER OF</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">SHARES</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">BENEFICIALLY</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">OWNED BY</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">EACH</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">REPORTING</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">PERSON WITH:</font></font></div>
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<td align="left" valign="top" width="8%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">5</font></div>
</td>
<td align="left" colspan="2" valign="top" width="60%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">SOLE VOTING POWER</font>:&#160;&#160; 0</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block">&#160;</div>
</td>
</tr><tr>
<td align="left" valign="top" width="8%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">6</font></div>
</td>
<td align="left" colspan="2" valign="top" width="60%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">SHARED VOTING POWER</font>:&#160;&#160; 489,540*</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block">&#160;</div>
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</tr><tr>
<td align="left" valign="top" width="8%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">7</font></div>
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<td align="left" colspan="2" valign="top" width="60%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">SOLE DISPOSITIVE POWER</font>:&#160; &#160;0</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block">&#160;</div>
</td>
</tr><tr>
<td align="left" valign="top" width="8%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">8</font></div>
</td>
<td align="left" colspan="2" valign="top" width="60%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">SHARED DISPOSITIVE POWER</font>:&#160;&#160; 489,540*</font></div>

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</td>
</tr><tr>
<td align="left" valign="top" width="10%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">9</font></div>
</td>
<td align="left" colspan="4" valign="top" width="90%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;&#160; 489,540*</font></div>

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</td>
</tr><tr>
<td align="left" valign="top" width="10%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">10</font></div>
</td>
<td align="left" colspan="4" valign="top" width="90%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;&#160; [&#160;&#160;&#160;]</font></div>

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</td>
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<td align="left" valign="top" width="10%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">11</font></div>
</td>
<td align="left" colspan="4" valign="top" width="90%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;&#160; 5.0%*</font></div>

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</td>
</tr><tr>
<td align="left" valign="top" width="10%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">12</font></div>
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<td align="left" colspan="4" valign="top" width="90%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;&#160; PN</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">&#160;</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">*&#160;&#160;&#160;&#160;Beneficial ownership percentage is based upon 9,725,489 shares of common stock, $0.001 par value per share (&#8220;Common Stock&#8221;), of OncoGenex Pharmaceuticals, Inc., a Delaware corporation (the &#8220;Issuer&#8221;), issued and outstanding as of August 1, 2011, as reported by the Issuer in its Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2011 (File No. 033-80623), filed with the Securities and Exchange Commission on August 5, 2011.&#160;&#160;Abingworth LLP (the &#8220;Reporting Person&#8221;) is the investment manager to a number of investment funds that include Abingworth Bioventures V L.P. (&#8220;ABV V&#8221;) and Abingworth Bioequities Master Fund Limited (&#8220;ABE&#8221; and, together with ABV V, the &#8220;Abingworth Funds&#8221;).&#160;&#160;As of August 12, 2011, ABV V is the owner of record of 335,578 shares of Common Stock and ABE is the owner of record of 153,962 shares of Common Stock.&#160;&#160;The Reporting Person, as the investment manager to the Abingworth Funds, may be deemed to beneficially own the 489,540 shares of Common Stock held by the Abingworth Funds.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">CUSIP No.<font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-WEIGHT: bold">&#160;</font>68230A106<font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;</font>13G&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Page&#160;3 of 5</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block"><a name="ref.ID0ENGBI"><!--EFPlaceholder--></a>&#160;</div>

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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item&#160;1(a).</font></font></div>
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<div align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font style="TEXT-DECORATION: underline">Name of Issuer</font>:&#160;</font></font><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font style="FONT-WEIGHT: normal"><font style="FONT-WEIGHT: normal">&#160;OncoGenex Pharmaceuticals, Inc. (the &#8220;Issuer&#8221;).</font></font></font></font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item&#160;1(b).</font></font></div>
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<div align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; TEXT-DECORATION: underline">Address of Issuer&#8217;s Principal Executive Offices</font><font style="DISPLAY: inline; FONT-WEIGHT: bold">:</font></font></div>

<div align="left">&#160;</div>

<div align="left">1522 217<font style="DISPLAY: inline; FONT-SIZE: 70%; VERTICAL-ALIGN: text-top">th</font> Place SE, Suite 100, Bothell, Washington 98021.</div>
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<table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item&#160;2(a).</font></font></div>
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<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; TEXT-DECORATION: underline">Name of Persons Filing</font><font style="DISPLAY: inline; FONT-WEIGHT: bold">:</font>&#160;&#160;This Schedule 13G is being filed by Abingworth LLP (the &#8220;Reporting Person&#8221;).&#160;&#160;The Reporting Person is the investment manager to a number of investment funds that include Abingworth Bioventures V L.P. (&#8220;ABV V&#8221;) and Abingworth Bioequities Master Fund Limited (&#8220;ABE&#8221; and, together with ABV V, the &#8220;Abingworth Funds&#8221;).&#160;&#160;As of August 12, 2011, ABV V is the owner of record of 335,578 shares of the Issuer&#8217;s common stock, par value $0.001 per share (&#8220;Common Stock&#8221;), and ABE is the owner of record of 153,962 shares of Common Stock.&#160;&#160;The Reporting Person, as the investment manager to the Abingworth Funds, may be deemed to beneficially own the 489,540 shares of Common Stock held by the Abingworth Funds.</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item&#160;2(b).</font></font></div>
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<div align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; TEXT-DECORATION: underline">Address of Principal Business Office or, if None, Residence</font><font style="DISPLAY: inline; FONT-WEIGHT: bold">: </font>The business address for the Reporting Person is Princes House, 38 Jermyn Street, London, England SW1Y 6DN.</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item&#160;2(c).</font></font></div>
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<div align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; TEXT-DECORATION: underline">Citizenship</font><font style="DISPLAY: inline; FONT-WEIGHT: bold">:</font>&#160;&#160;Abingworth LLP is a limited liability partnership organized under the laws of England.</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item&#160;2(d).</font></font></div>
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<div align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; TEXT-DECORATION: underline">Title of Class of Securities</font><font style="DISPLAY: inline; FONT-WEIGHT: bold">:</font>&#160;&#160;Common Stock, $0.001 par value per share.</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item&#160;2(f).</font></font></div>
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<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; TEXT-DECORATION: underline">CUSIP Number</font><font style="DISPLAY: inline; FONT-WEIGHT: bold">:</font>&#160;&#160;68230A106</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item&#160;3.</font></font></div>
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<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; TEXT-DECORATION: underline">If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person filing is a</font><font style="DISPLAY: inline; FONT-WEIGHT: bold">:</font>&#160;&#160;</font></div>

<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">&#160;</font></div>

<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Not applicable.</font></div>
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<div style="TEXT-INDENT: 0pt; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item&#160;4.</font></font></div>
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<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; TEXT-DECORATION: underline">Ownership</font><font style="DISPLAY: inline; FONT-WEIGHT: bold">.</font></font></div>
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<div><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB2" style="LETTER-SPACING: 9pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Amount Beneficially Owned (as of August 12, 2011):&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;489,540*</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB2" style="LETTER-SPACING: 9pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Percent of Class (as of August 12, 2011):&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;5.0%*</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB2" style="LETTER-SPACING: 9pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Number of Shares as to which such person has:</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 36pt">&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;(ii)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shared power to vote or to direct the vote:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;489,540*</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 36pt">&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;(iii)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;sole power to dispose or to direct the disposition:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;0</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB1" style="MARGIN-LEFT: 36pt">&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;(iv)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shared power to dispose or to direct the disposition:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;489,540*</font></div>

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<div align="justify"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Beneficial ownership percentage is based upon 9,725,489 shares of Common Stock issued and outstanding as of August 1, 2011, as reported by the Issuer in its Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2011 (File No. 033-80623), filed with the Securities and Exchange Commission on August 5, 2011.&#160;&#160;The Reporting Person is the investment manager to a number of investment funds that include ABV V and ABE.&#160;&#160;As of August 12, 2011, ABV V is the owner of record of 335,578 shares of Common Stock and ABE is the owner of record of 153,962 shares of Common Stock.&#160;&#160;The Reporting Person, as the investment manager to the Abingworth Funds, may be deemed to beneficially own the 489,540 shares of Common Stock held by the Abingworth Funds.&#160;&#160;</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">CUSIP No.<font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-WEIGHT: bold">&#160;</font>68230A106<font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;</font>13G&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Page&#160;4 of 5</font></div>
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<div style="TEXT-INDENT: 0pt; DISPLAY: block"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="FONT-WEIGHT: bold">Item&#160;5.</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font style="FONT-WEIGHT: bold; TEXT-DECORATION: underline">Ownership of Five Percent or Less of a Class</font>.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160; </font>&#160;If this statement is being filed to report the fact that as of the date hereof the Reporting Person has ceased to be the beneficial owner of more than 5 percent of the class of securities, check the following&#160;&#160;&#160;<font style="DISPLAY: inline;" face="Wingdings">o</font></font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160; &#160;</font>&#160;Not applicable.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="FONT-WEIGHT: bold">Item&#160;6.</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font style="FONT-WEIGHT: bold; TEXT-DECORATION: underline">Ownership of More than Five Percent on Behalf of Another Person</font>.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160; &#160;</font>&#160;Not applicable.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="FONT-WEIGHT: bold">Item&#160;7.</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font style="FONT-WEIGHT: bold; TEXT-DECORATION: underline">Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company</font>.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160; &#160;</font>&#160;Not applicable.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="FONT-WEIGHT: bold">Item&#160;9.</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font style="FONT-WEIGHT: bold; TEXT-DECORATION: underline">Notice of Dissolution of Group</font>.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB2" style="LETTER-SPACING: 9pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;&#160;&#160;&#160; </font>&#160;&#160;&#160;&#160;&#160; Not applicable.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font style="FONT-WEIGHT: bold">Item&#160;10.</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;</font><font style="FONT-WEIGHT: bold; TEXT-DECORATION: underline">Certification</font>.</font></div>
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<div style="TEXT-ALIGN: justify; TEXT-INDENT: 0pt; DISPLAY: block"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160; &#160;&#160;</font>&#160;By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.</font></div>

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<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">CUSIP No.<font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-WEIGHT: bold">&#160;</font>68230A106<font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt; FONT-WEIGHT: bold">&#160;</font>13G&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Page&#160;5 of 5</font></div>
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