<SEC-DOCUMENT>0001062822-11-000068.txt : 20111222
<SEC-HEADER>0001062822-11-000068.hdr.sgml : 20111222
<ACCEPTANCE-DATETIME>20111104131909
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0001062822-11-000068
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20111104

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LEXICON PHARMACEUTICALS, INC./DE
		CENTRAL INDEX KEY:			0001062822
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				760474169
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		8800 TECHNOLOGY FOREST PLACE
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77381
		BUSINESS PHONE:		2818633000

	MAIL ADDRESS:	
		STREET 1:		8800 TECHNOLOGY FOREST PLACE
		CITY:			THE WOODLANDS
		STATE:			TX
		ZIP:			77381

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LEXICON GENETICS INC/TX
		DATE OF NAME CHANGE:	20000126
</SEC-HEADER>
<DOCUMENT>
<TYPE>CORRESP
<SEQUENCE>1
<FILENAME>filename1.htm
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		<title>Acceleration Request of Registration Statement on Form S-3 (333-171953)</title>
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<a name="s1e2762a4-1800-4d2c-9035-18b53d0a7d07"></a><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><br><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">[Letterhead of Lexicon Pharmaceuticals, Inc.]</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">November 4, 2011</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Securities and Exchange Commission</font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Division of Corporate Finance</font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">100 F Street, N.E.</font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Washington, D.C. 20549</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Attention:</font><font style="font-family:inherit;font-size:10pt;">&#160;&#160;&#160;&#160;</font><font style="font-family:inherit;font-size:11pt;">Ms. Karen Ubell</font></div><div style="line-height:120%;text-align:left;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;&#160;&#160;&#160;</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt; width:100%;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:11pt;padding-left:48px;"><font style="font-family:inherit;font-size:11pt;">Re:</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Request for acceleration of effectiveness of registration statement on Form S&#8209;3 (File No. 333-171953) of Lexicon Pharmaceuticals, Inc.</font></div></td></tr></table><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Ladies and Gentlemen:</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:11pt;"><font style="font-family:inherit;font-size:10pt;"></font><font style="font-family:inherit;font-size:11pt;">Pursuant to Rule 461 under the Securities Act of 1933, as amended, we hereby request that the effectiveness of the above-captioned registration statement be accelerated so that such registration statement will become effective on Monday, November 7, 2011 at 12:00 p.m., Eastern time, or as soon thereafter as practicable.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">In connection with such request, we hereby acknowledge that:</font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt; width:100%;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:11pt;padding-left:72px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font><font style="font-family:inherit;font-size:10pt;"></font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">should the Commission or the staff, acting pursuant to delegated authority, declare such registration statement effective, it does not foreclose the Commission from taking any action with respect to such registration statement;</font></div></td></tr></table><div style="line-height:120%;text-align:justify;padding-left:72px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt; width:100%;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:11pt;padding-left:72px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font><font style="font-family:inherit;font-size:10pt;"></font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">the action of the Commission or the staff, acting pursuant to delegated authority, in declaring such registration statement effective, does not relieve us from our full responsibility for the adequacy and accuracy of the disclosure in such registration statement; and</font></div></td></tr></table><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt; width:100%;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:11pt;padding-left:72px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font><font style="font-family:inherit;font-size:10pt;"></font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">we may not assert staff comments and the declaration of effectiveness as a defense in any proceeding initiated by the Commission or any person under the federal securities laws of the United States.</font></div></td></tr></table><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:11pt;"><font style="font-family:inherit;font-size:10pt;"></font><font style="font-family:inherit;font-size:11pt;">Please call the undersigned at (281) 863-3443 with any questions regarding this matter.</font></div><div style="line-height:120%;text-align:justify;text-indent:240px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;text-indent:336px;font-size:11pt;"><font style="font-family:inherit;font-size:10pt;"></font><font style="font-family:inherit;font-size:11pt;">Very truly yours,</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;text-indent:336px;font-size:11pt;"><font style="font-family:inherit;font-size:10pt;"></font><font style="font-family:inherit;font-size:11pt;">LEXICON PHARMACEUTICALS, INC.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;text-indent:336px;font-size:11pt;"><font style="font-family:inherit;font-size:10pt;"></font><font style="font-family:inherit;font-size:11pt;">By:</font><font style="font-family:inherit;font-size:10pt;">&#160;&#160;&#160;&#160;</font><font style="font-family:inherit;font-size:11pt;text-decoration:underline;">  /s/ BRIAN T. CRUM&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</font><font style="font-family:inherit;font-size:10pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</font></div><div style="line-height:120%;text-align:justify;padding-left:336px;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Name: </font><font style="font-family:inherit;font-size:10pt;">&#160;&#160;&#160;&#160;</font><font style="font-family:inherit;font-size:11pt;">Brian T. Crum</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt; width:100%;"><tr><td style="width:384px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:11pt;padding-left:336px;"><font style="font-family:inherit;font-size:11pt;">Title:</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Vice President and General Counsel</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><br><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div>	</body>
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