PROSPECTUS FILED PURSUANT TO RULE 424(B)(3)

                       LIGAND PHARMACEUTICALS INCORPORATED

                                                Filed Pursuant to Rule 424(b)(3)
                                                     Registration No. 333-131029



                          Prospectus Supplement No. 17
    (to Prospectus dated April 12, 2006, as supplemented and amended by that
Prospectus Supplement No. 1 dated May 15, 2006, that Prospectus Supplement No. 2
dated June 12, 2006, that Prospectus Supplement No. 3 dated June 29, 2006, that
Prospectus Supplement No. 4 dated August 4, 2006, that Prospectus Supplement No.
5 dated August 9, 2006, that Prospectus Supplement No. 6 dated August 30, 2006,
   that Prospectus Supplement No. 7 dated September 11, 2006, that Prospectus
  Supplement No. 8 dated September 12, 2006, that Prospectus Supplement No. 9
dated October 2, 2006, that Prospectus Supplement No. 10 dated October 17, 2006,
   that Prospectus Supplement No. 11 dated October 20, 2006, that Prospectus
  Supplement No. 12 dated October 31, 2006, that Prospectus Supplement No. 13
 dated November 14, 2006, that Prospectus Supplement No. 14 dated November 15,
   2006, that Prospectus Supplement No. 15 dated December 14, 2006, and that
              Prospectus Supplement No. 16 dated January 5, 2007.

         This Prospectus Supplement No. 17 supplements and amends the prospectus
dated April 12, 2006 (as supplemented and amended by that Prospectus Supplement
No. 1 dated May 15, 2006, that Prospectus Supplement No. 2 dated June 12, 2006,
that Prospectus Supplement No. 3 dated June 29, 2006, that Prospectus Supplement
No. 4 dated August 4, 2006, that Prospectus Supplement No. 5 dated August 9,
2006, that Prospectus Supplement No. 6 dated August 30, 2006, that Prospectus
Supplement No. 7 dated September 11, 2006, that Prospectus Supplement No. 8
dated September 12, 2006, that Prospectus Supplement No. 9 dated October 2,
2006, that Prospectus Supplement No. 10 dated October 17, 2006, that Prospectus
Supplement No. 11 dated October 20, 2006, that Prospectus Supplement No. 12
dated October 31, 2006, that Prospectus Supplement No. 13 dated November 14,
2006, that Prospectus Supplement No. 14 dated November 15, 2006, that Prospectus
Supplement No. 15 dated December 14, 2006, and that Prospectus Supplement No. 16
dated January 5, 2007), or the Prospectus, relating to the offer and sale of up
to 7,790,974 shares of our common stock to be issued pursuant to awards granted
or to be granted under our 2002 Stock Incentive Plan, or our 2002 Plan, up to
147,510 shares of our common stock to be issued pursuant to our 2002 Employee
Stock Purchase Plan, or our 2002 ESPP, and up to 50,309 shares of our common
stock which may be offered from time to time by the selling stockholders
identified on page 110 of the Prospectus for their own accounts. Each of the
selling stockholders named in the Prospectus acquired the shares of common stock
upon exercise of options previously granted to them as an employee, director or
consultant of Ligand or as restricted stock granted to them as a director of
Ligand, in each case under the terms of our 2002 Plan. We will not receive any
of the proceeds from the sale of the shares of our common stock by the selling
stockholders under the Prospectus. We will receive proceeds in connection with
option exercises under the 2002 Plan and shares issued under the 2002 ESPP which
will be based upon each granted option exercise price or purchase price, as
applicable.

         This Prospectus Supplement No. 17 includes the attached Current Report
on Form 8-K of Ligand Pharmaceuticals Incorporated dated January 16, 2007, as
filed by us with the Securities and Exchange Commission.

         This Prospectus Supplement No. 17 should be read in conjunction with,
and delivered with, the Prospectus and is qualified by reference to the
Prospectus, except to the extent that the information in this Prospectus
Supplement No. 17 updates or supersedes the information contained in the
Prospectus.

         Our common stock is quoted on the Nasdaq Global Market under the symbol
"LGND." On January 12, 2007, the last reported sale price of our common stock on
the Nasdaq Global Market was $11.67 per share.

         Investing in our common stock involves risk. See "Risk Factors"
beginning on page 7 of the Prospectus and beginning on page 62 of Prospectus
Supplement No. 13.

         Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if the
Prospectus or this Prospectus Supplement No. 17 is truthful or complete. Any
representation to the contrary is a criminal offense.

       The date of this Prospectus Supplement No. 17 is January 16, 2007.




                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                                 ---------------



                                    FORM 8-K

                                 CURRENT REPORT




     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

       Date of Report (Date of earliest event reported): January 11, 2007

                       LIGAND PHARMACEUTICALS INCORPORATED
             (Exact name of registrant as specified in its charter)

                                    DELAWARE
                 (State or other jurisdiction of incorporation)

                                    000-20720
                            (Commission File Number)

                           10275 Science Center Drive,
                              San Diego, California
                    (Address of principal executive offices)

                                 (858) 550-7500
              (Registrant's telephone number, including area code)

                                   77-0160744
                      (I.R.S. Employer Identification No.)

                                   92121-1117
                                   (Zip Code)









ITEM 5.02 DEPARTURE OF DIRECTORS OR PRINCIPAL OFFICERS; ELECTION OF DIRECTORS;
APPOINTMENT OF PRINCIPAL OFFICERS.


         On January 15, 2007 Ligand Pharmaceuticals Incorporated announced the
appointment of John L. Higgins, 38, as President, Chief Executive Officer and
director. Mr. Higgins succeeds Henry F. Blissenbach who has served as Chairman
and Interim CEO since August 2006. Mr. Blissenbach will continue as Chairman of
the Company's Board of Directors.

         Mr. Higgins was most recently Chief Financial Officer, Executive Vice
President, Finance, Administration and Corporate Development of Connectics
Corporation, a public specialty pharmaceutical company, until its acquisition by
Stiefel Laboratories, Inc. in December 2006. In those capacities, in which he
had served since January 2002, he was responsible for, e.g., corporate
development, finance, investor relations, strategic planning and general
administration. He served as Executive Vice President, Finance and
Administration, from January 2000 to December 2001, and as Vice President,
Finance and Administration from September 1997 through December 1999. Mr.
Higgins earned an A.B. in Economics from Colgate University and is a Director of
Biocryst Pharmaceuticals, Inc., a public biotech company, where he serves as a
member of the Compensation Committee and Chairman of the Audit Committee.
Mr. Higgins was not selected as an officer or director pursuant to any
arrangement or understanding between him and any other persons.

         The terms of Mr. Higgins' appointment are governed by a letter
agreement between him and the Company, dated as of January 10, 2007 and executed
on January 11, 2007. The principal terms of the letter agreement include:

                o  base salary of $400,000 per year
                o  performance bonus opportunity with a target of 50% of salary,
                   up to a maximum of 75%
                o  restricted stock grant of 150,000 shares, vesting over 2
                   years
                o  eligibility for future discretionary, performance-based stock
                   or option grants
                o  lump-sum relocation benefit of $100,000
                o  ordinary severance (i.e. involuntary termination for cause or
                   voluntary termination with good cause, without a change of
                   control ) of 18 months' salary, continuation of health
                   benefits, and acceleration of stock and option vesting
                o  change of control severance of 2 years salary, plus average
                   annual bonus, continuation of health benefits, and
                   acceleration of stock and option vesting

The letter agreement is attached hereto as Exhibit 10.1 and is incorporated
herein by reference.

         A copy of the press release dated January 15, 2007 announcing
Mr. Higgins' appointment is attached hereto as Exhibit 99.1 and is incorporated
herein by reference.


Item 9.01 Financial Statements And Exhibits

(d)      Exhibits

EXHIBIT NUMBER             DESCRIPTION
---------------            -------------

10.1               Letter Agreement by and between the Company and John L.
                   Higgins dated as of January 10, 2007
99.1               Press Release of the Company dated January 15, 2007




                                   SIGNATURES
         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has caused this report to be signed on its behalf by the
undersigned.


                                          LIGAND PHARMACEUTICALS INCORPORATED




        Date : January 16, 2007           By:   /s/ Warner R. Broaddus
                                          Name:  Warner R. Broaddus
                                          Title: Vice President, General Counsel
                                                 & Secretary




                                                                    EXHIBIT 10.1



                               [LIGAND LETTERHEAD]


10 January 2007


John L. Higgins
820 Stanford Avenue
Menlo Park, California 94025

Dear John:

                  Ligand Pharmaceuticals Incorporated (the "Company") is pleased
to offer you employment on the following terms:

                1.      POSITION. Your title will be President and Chief
Executive Officer and Director, and you will report to the Company's Board of
Directors (the "Board"). This is a full-time position. While you render services
to the Company, you will not engage in any other employment, consulting or other
business activity (whether full-time or part-time) that would create a conflict
of interest with the Company or your duties, in each case as determined by the
Board. By signing this letter agreement, you confirm to the Company that you
have no contractual commitments or other legal obligations that would prohibit
you from performing your duties for the Company. Upon hire and assuming your
compliance with all Company policies applicable to directors, you will be
elected a director of the Company to serve until the next annual meeting and
while you are serving as the Company's President and Chief Executive Officer,
the Company will make all reasonable efforts to cause you to be elected by our
stockholders to our Board of Directors.

                2.      CASH COMPENSATION. The Company will pay you a starting
salary at the rate of $400,000 per year, payable in accordance with the
Company's standard payroll schedule. This salary will be subject to adjustment
pursuant to the Company's employee compensation policies in effect from time to
time. In addition, you will be eligible to be considered for an incentive bonus
for each fiscal year of the Company. The bonus (if any) will be awarded against
your performance of the Company, and you personally. Company performance targets
and other objective or subjective criteria will be established by the Company's
Board of Directors or its Compensation Committee, in consultation with you. Your
target bonus will be 50% of your annual base salary, with a maximum of 75%. Any
bonus for the fiscal year in which your employment begins will be prorated,
based on the number of days you are employed by the Company during that fiscal
year. The bonus for a fiscal year will be paid after the Company's books for
that year have been closed and will be paid only if you are employed by the
Company at the fiscal year end. The determinations of the Company's Compensation
Committee or its Board of Directors with respect to your bonus will be final and
binding.

                3.      RELOCATION BENEFITS. The Company will pay you $100,000
in a lump sum upon hire to defray the costs of relocating your residence to San
Diego. You agree to reimburse this amount to the Company if you voluntarily
terminate your employment without good reason within one year of the start date
of your employment.




                4.      EMPLOYEE BENEFITS AND OFFICER INDEMNIFICATION. As a
regular employee of the Company, you will be eligible to participate in the
standard package of Company-sponsored benefits including health insurance,
401(k), employee stock purchase plans and other benefits offered to all senior
executives. The Company will purchase and pay the premiums on a term life
insurance on your life with you as owner and beneficiary. In addition, you will
be entitled to four weeks of paid vacation in accordance with the Company's
vacation policy, as in effect from time to time. We will also provide a standard
indemnification agreement for you as an executive officer, in accordance with
our bylaws.

                5.      RESTRICTED STOCK GRANT. Subject to the approval of the
Company's Board of Directors or its Compensation Committee, you will be granted
150,000 shares of the Company's common stock under the Company's 2002 Stock
Incentive Plan, subject to a right of repurchase or "vesting" and other
customary restrictions (the "Restricted Stock"). The purchase price per share
will be equal to the fair market value of the Company's Common Stock at the
close of business on the date of grant, and will be paid in future services
rendered by you to the Company over the next two years with no out of pocket
cost to you. You shall have full stockholder rights to these shares, regardless
of whether they are vested, including voting rights and the right to receive any
applicable dividends, splits and the like. You will vest in 50% of the
Restricted Stock after 12 months of continuous service after the date of grant,
and the balance will vest at the end of your second year of continuous service
after the date of grant. You will be eligible for future restricted stock awards
and/or option awards at the discretion of the Compensation Committee during the
term of this Agreement.

                6.       SEVERANCE BENEFITS. The Company will enter into a
Severance Agreement with you that will include the terms of this Section 6. If
the Company terminates your employment for any reason other than Cause or
Permanent Disability or you terminate for Good Reason and there has not been a
Change of Control in the prior 12 months, then you will be entitled to the
following benefits:

                        (a)  The  Company  will  continue  to pay your base
         salary for a period of eighteen  months  following  the  termination of
         your employment. Your base salary will be paid at the rate in effect at
         the time of the termination  of your  employment and in accordance with
         the Company's standard payroll procedures.  However,  your severance
         payments will in no event start before the earliest date permitted by
         Section 409A(a)(2)of the Internal Revenue Code. If the commencement of
         the severance payments must be delayed, as determined by the Company,
         then the deferred installments will be paid to you in a lump sum on the
         earliest  practicable  date  permitted  by  Section 409A(a)(2).  The
         amount of the  salary continuation  payments under this Subsection (a)
         will be reduced by the amount of any severance pay or pay in lieu of
         notice that you receive from the Company under a federal or state
         statute (including,  without  limitation,  the WARN Act).

                        (b)  If you elect to continue your health insurance
         coverage under the Consolidated Omnibus Budget Reconciliation Act
         ("COBRA") following the termination of your employment, then the
         Company will pay the same portion of your monthly premium under COBRA
         as it pays for active



         employees until the earliest of (i) the close of the eighteen-month
         period following the termination of your employment, (ii) the
         expiration of your continuation coverage under COBRA or (iii) the date
         when you become eligible for substantially equivalent health insurance
         coverage in connection with new employment or self-employment.

                        (c)  accelerated vesting of any outstanding, unvested
         stock or options

If the Company terminates your employment for any reason other than Cause or
Permanent Disability or you terminate for Good Reason, and within 12 months
after a Change of Control, then you will be entitled to the following benefits:

                        (d)  The  Company  will pay you a lump sum amount equal
         to two times (i) your  annual  base  salary  plus (ii) the average of
         your annual bonuses for your  period of  service.  Your base salary
         will be paid at the rate in effect at the time of the termination of
         your  employment and in accordance  with the Company's  standard
         payroll  procedures. However,  your severance  payments will in no
         event start before the earliest date permitted by  Section 409A(a)(2)of
         the Internal Revenue Code. If the commencement of the severance
         payments must be delayed, as determined by the Company,  then the
         deferred  installments  will  be paid  to  you  in a  lump sum on the
         earliest  practicable  date permitted  by Section 409A(a)(2). The
         amount of the salary continuation  payments under this Subsection (d)
         will be reduced by the amount of any  severance  pay or pay in lieu of
         notice  that you receive  from the  Company  under a federal or state
         statute (including, without limitation, the WARN Act).

                        (e)  If you elect to continue your health insurance
         coverage under the Consolidated Omnibus Budget Reconciliation Act
         ("COBRA") following the termination of your employment, then the
         Company will pay the same portion of your monthly premium under COBRA
         as it pays for active employees until the earliest of (i) the close of
         the twenty-four month period following the termination of your
         employment, (ii) the expiration of your continuation coverage under
         COBRA or (iii) the date when you become eligible for substantially
         equivalent health insurance coverage in connection with new employment
         or self-employment.

                        (f)  accelerated vesting of any outstanding, unvested
stock or options

If your severance and other benefits provided for in this Section 6 constitute
"parachute payments" within the meaning of Section 280G of the Code and, but for
this subsection, would be subject to the excise tax imposed by Section 4999 of
the Code, then your severance and other benefits under this Section 6 will be
payable, at your election, either in full or in such lesser amount as would
result, after taking into account the applicable federal, state and local income
taxes and the excise tax imposed by Section 4999, in your receipt on an
after-tax basis of the greatest amount of severance and other benefits.




However, this Section 6 will not apply unless you (i) resign as a member of the
Boards of Directors of the Company and all of its subsidiaries, to the extent
applicable, (ii) sign a general release of claims (in a form prescribed by the
Company) of all known and unknown claims that you may then have against the
Company or persons affiliated with the Company (iii) have returned all Company
property and (iv) if requested, agree to be reasonably available as a consultant
to the Company at mutually agreeable times and places, without further
remuneration, during the twelve months following your termination. For purposes
of this letter agreement:

                           "CAUSE" means (a) your unauthorized use or disclosure
         of the Company's confidential information or trade secrets, which use
         or disclosure causes material harm to the Company, (b) your material
         breach of any agreement between you and the Company, which causes
         material harm to the Company (c) your material failure to comply with
         the Company's written policies or rules which causes material harm to
         the Company, (d) your conviction of, or your plea of "guilty" or "no
         contest" to, a felony under the laws of the United States or any State,
         (e) your gross negligence or willful misconduct which adversely affects
         the business or affairs of the Company in a material manner, including
         without limitation any fraud or embezzlement, (f) your continuing
         failure to perform assigned duties after receiving written notification
         of the failure from the Company's Board of Directors or (g) your
         willful failure to cooperate in good faith with a governmental or
         internal investigation of the Company or its directors, officers or
         employees, if the Company has requested your cooperation.

                           "GOOD REASON" means (i) a reduction in your title or
         a material reduction in your duties or responsibilities that is
         inconsistent with your position as Chief Executive Officer or a change
         in your relationship such that you no longer report directly to the
         Board of Directors of the Company; (ii) any reduction in your base
         annual salary or target bonus opportunity (other than in connection
         with a general decrease in the salary or target bonuses for all
         officers of Ligand) without your consent or material breach by Ligand
         of any of its obligations hereunder after providing Ligand with written
         notice within seven days of such breach and an opportunity to cure;
         (iii) failure of any successor to assume this agreement; (iv) a
         requirement by the Company that you relocate your principal office to a
         facility more than 50 miles from Ligand's current headquarters; or in
         the case of a Change in Control, your not being offered a position as a
         section 16 officer of the surviving entity or acquiror that results
         from any Change in Control.

                           "PERMANENT DISABILITY" means that you are unable to
         perform the essential functions of your position, with or without
         reasonable accommodation, for a period of at least 120 consecutive days
         because of a physical or mental impairment.

                           "CHANGE OF CONTROL" means (i) a merger or
         consolidation in which the Company is not the surviving entity, except
         for a transaction the principal purpose of which is to change the state
         in which the Company is incorporated, (ii) the sale, transfer or other
         disposition of all or substantially all of the assets of the Company
         other than in the ordinary course of business, (iii) any reverse merger
         in which the Company ceases to exist as an independent corporation and
         becomes the subsidiary of another corporation, except where there is an
         insubstantial change in the DE FACTO voting control of the Company
         (e.g. the creation of a holding company), (iv) any hostile take-over,
         (v) the



         acquisition by any person (or related group of persons), whether by
         tender or exchange offer made directly to the Company's stockholders,
         private purchases from one or more of the Company's stockholders, open
         market purchases or any other transaction, of beneficial ownership of
         securities possessing more than thirty percent(30%) of the total
         combined voting power of the Company's outstanding securities, (vi) the
         acquisition by any person (or related group of persons), whether by
         tender or exchange offer made directly to the Company's stockholders,
         private purchases from one or more of the Company's stockholders, open
         market purchases or any other transaction, of additional securities of
         the Company which increase the total holdings of such person (or group)
         to a level of securities possessing more than fifty percent (50%) of
         the total combined voting power of the Company's outstanding
         securities, or (vii) the acquisition by any person (or related group of
         persons), whether by tender or exchange offer made directly to the
         Company's stockholders, private purchases from one or more of the
         Company's stockholders, open market purchases or any other transaction,
         of securities of the Company possessing sufficient voting power in the
         aggregate to elect an absolute majority of the members of the Board
         (rounded up to the nearest whole number).

                7.      PROPRIETARY INFORMATION AND INVENTIONS AGREEMENT. Like
all Company employees, you will be required, as a condition of your employment
with the Company, to sign the Company's standard Proprietary Information and
Inventions Agreement, a copy of which is attached hereto as EXHIBIT A.

                8.      EMPLOYMENT RELATIONSHIP. Employment with the Company is
for no specific period of time. Your employment with the Company will be
"at will," meaning that either you or the Company may terminate your employment
at any time and for any reason, with or without cause. Any contrary
representations that may have been made to you are superseded by this letter
agreement. This is the full and complete agreement between you and the Company
regarding your employment. Although your job duties, title, compensation and
benefits, as well as the Company's personnel policies and procedures, may change
from time to time, the "at will" nature of your employment may only be changed
in an express written agreement signed by you and an officer of the Company
(other than you) duly authorized by express resolution of the Board or the
Compensation Committee.

                9.      TAXES. All forms of compensation referred to in this
letter agreement are subject to reduction to reflect applicable withholding and
payroll taxes and other deductions required by law. You agree that the Company
does not have a duty to design its compensation policies in a manner that
minimizes your tax liabilities, and you will not make any claim against the
Company or its Board of Directors related to tax liabilities arising from your
compensation.

                10.     INTERPRETATION, AMENDMENT AND ENFORCEMENT. This letter
agreement and Exhibit A constitute the complete agreement between you and the
Company, contain all of the terms of your employment with the Company and
supersede any prior agreements, representations or understandings (whether
written, oral or implied) between you and the Company. This letter agreement may
not be amended or modified, except by an express written agreement signed by
both you and an officer of the Company (other than you) duly authorized by
express resolution of the Board or the Compensation Committee. The terms of this
letter agreement and the resolution of any disputes as to the meaning, effect,
performance or validity of




this letter agreement or arising out of, related to, or in any way connected
with, this letter agreement, your employment with the Company or any other
relationship between you and the Company (the "Disputes")will be governed by
California law, excluding laws relating to conflicts or choice of law. You and
the Company submit to the exclusive personal jurisdiction of the federal and
state courts located in San Diego County, California in connection with any
Dispute or any claim related to any Dispute.

                11.     GOVERNING LAW. This agreement will be governed by the
laws of the State of California without reference to conflict of laws
provisions.

                                    * * * * *

                We hope that you will accept our offer to join the Company.
You may indicate your agreement with these terms and accept this offer by
signing and dating both the enclosed duplicate original of this letter agreement
and the enclosed Proprietary Information and Inventions Agreement and returning
them to me. As required by law, your employment with the Company is contingent
upon your providing legal proof of your identity and authorization to work in
the United States. We will also need you to complete a director questionnaire
prior to employment, and a routine occupational physical evaluation
post-employment. Your employment is also contingent upon your starting work with
the Company on or before January 21,2007.

                If you have any questions, please call me at 952-746-7802
(Minneapolis) or 858-550-7582 (Ligand).

                                Very truly yours,


                                LIGAND PHARMACEUTICALS INCORPORATED



                                By: /s/ Henry F. Blissenbach
                                   ---------------------------------------------
                                      Henry F. Blissenbach,
                                      Chairman and Interim CEO



I have read and accept this employment offer:


/s/ John L. Higgins
-----------------------------------------------
                Signature of Candidate

Dated: 01-11-07
        ---------------------------------------




ATTACHMENT

Exhibit A: Proprietary Information and Inventions Agreement





                                                                   EXHIBIT 99.1




             Ligand Appoints John L. Higgins Chief Executive Officer

         San Diego, CA January 16, 2007 -- Ligand Pharmaceuticals Incorporated
(NASDAQ: LGND) announced today that John L. Higgins is joining the Company as
Chief Executive Officer, President and a member of the Company's Board of
Directors.  Mr. Higgins succeeds Henry F. Blissenbach who has served as Chairman
and interim CEO since August 2006. Mr. Blissenbach will continue as Chairman of
the Board of Directors.
         "Mr. Higgins is a proven leader with extensive deal-making experience,
outstanding strategic instincts and strong relationships with Wall Street. His
experience and track record in creating value with biopharmaceutical companies
will be a tremendous asset to Ligand as our exciting product pipeline advances,"
said Henry F. Blissenbach, Ligand's Chairman and interim CEO. "We are pleased to
appoint Mr. Higgins to lead our Company and to complete the restructuring of the
business. In the near-term we are focused on closing the sale of AVINZA to King
Pharmaceuticals, and upon doing so we will be able to focus our efforts on
advancing our multiple pipeline projects."
         Mr. Higgins brings to Ligand over 14 years of corporate development,
financing, strategic planning, commercialization and investment banking
experience in the biopharmaceutical industry. Prior to joining Ligand, Mr.
Higgins was Chief Financial Officer, Executive Vice President, Finance,
Administration and Corporate Development of Connetics Corporation, a
public specialty pharmaceutical company, until its acquisition by Stiefel
Laboratories, Inc. in December 2006. During his tenure of nearly a decade
atPersonName Connetics, Mr. Higgins played a key leadership role in numerous
strategic initiatives including major acquisitions, divestitures, multiple
product and technology licensing transactions and financings.
         "Ligand has a rich R&D heritage and numerous valuable product
candidates, corporate partnerships and other assets," said Mr. Higgins. "I am
pleased to join the Company at this critical time in its history. While we work
to execute on key short-term goals, the ongoing transformation of the Company
has laid the foundation for a very



compelling and exciting business going forward. I am eager to work with the
Ligand team to execute on our new vision."
         "John possesses tremendous leadership abilities, integrity, intellect,
and deep industry experience. We are very excited to have him lead our company,"
said Daniel Loeb, a Ligand director. "Ligand has gone through a major
transformation over the last 12 months. On behalf of all of our shareholders, we
are proud of our achievements and how the Company is positioned today. With
accomplished and energetic new executive leadership and a focused business
strategy, as previously outlined to shareholders when the AVINZA and oncology
sales were announced, we remain committed to continuing to build value for
shareholders."
         Prior to joining Connetics, Mr. Higgins was Executive Vice President,
Corporate Development, of BioCryst Pharmaceuticals, Inc. and was a member of the
health care investment banking team at Dillon, Read & Company, Inc. Mr. Higgins
has served on numerous public and private corporate boards and currently is a
Director at BioCryst Pharmaceuticals, Inc. where he serves as Chairman of the
Audit Committee.  Mr. Higgins earned an A.B. in Economics, Magna Cum Laude, from
Colgate University.

About Ligand
Ligand discovers and develops new drugs that address critical unmet medical
needs of patients in the areas of cancer, pain, skin diseases, men's and women's
hormone-related diseases, osteoporosis, metabolic disorders, and cardiovascular
and inflammatory diseases. Ligand's proprietary drug discovery and development
programs are based on its leadership position in gene transcription technology,
primarily related to Intracellular Receptors. For more information, go to
www.ligand.com.

Caution Regarding Forward-Looking Statements
         This news release contains forward-looking statements by Ligand that
involve risks and uncertainties and reflect Ligand's judgment as of the date of
this release. These statements include those related to benefits of the
appointment to Ligand, product pipeline advances, completion of a restructuring,
closing the AVINZA sale, value of product candidates, short term goals,
transformation of the Company, its business and



business strategy going forward, and building value for stockholders. Actual
events or results may differ from Ligand's expectations. For example, we may not
be able to realize any particular goals or expectations, including advancing our
product pipeline or realizing any value from that pipeline, completing the
restructuring of or transforming our business, successfully executing any
business strategy nor increasing shareholder value. Any of these initiatives may
fail to meet expectations and our stock price could decrease. Additional
information concerning these and other risk factors affecting Ligand's business
can be found in prior press releases as well as in Ligand's public periodic
filings with the Securities and Exchange Commission, available via the Company's
internet site at www.ligand.com. Ligand disclaims any intent or obligation to
update these forward-looking statements beyond the date of this release.
         This caution is made under the safe harbor provisions of the Private
Securities Litigation Reform Act of 1995.

Contact:

John L. Higgins                             Paul V. Maier

Chief Executive Officer, President          Senior Vice President

858-550-7582                                and Chief Financial Officer

                                            858-550-7573



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