Exhibit 3.3

VIKING THERAPEUTICS, INC.

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION

(Pursuant to Sections 242 and 245 of the

General Corporation Law of the State of Delaware)

Viking Therapeutics, Inc., a corporation organized and existing under and by virtue of the provisions of the General Corporation Law of the State of Delaware (the “General Corporation Law”), does hereby certify as follows:

1. The name of the corporation is Viking Therapeutics, Inc. (the “Corporation”) and the Corporation was originally incorporated pursuant to the General Corporation Law on September 24, 2012, under the name Viking Therapeutics, Inc.

2. The Board of Directors of the Corporation duly adopted resolutions adopting and approving the amendment and restatement of the Certificate of Incorporation of the Corporation (this “Restated Certificate”), declaring this Restated Certificate to be advisable and in the best interests of the Corporation and its stockholders, and authorizing the appropriate officers of the Corporation to solicit the consent of the stockholders therefor, which resolution setting forth the adoption and approval of this Restated Certificate is as follows:

RESOLVED, that this Restated Certificate is hereby adopted and approved in its entirety to read as set forth on Exhibit A attached hereto and incorporated herein by this reference.

3. Exhibit A referred to above is attached hereto as Exhibit A and is hereby incorporated herein by this reference. This Restated Certificate was approved by the holders of the requisite number of shares of the Corporation in accordance with Section 228 of the General Corporation Law.

4. This Restated Certificate, which restates and integrates and further amends the provisions of the Corporation’s Certificate of Incorporation, has been duly adopted in accordance with Sections 242 and 245 of the General Corporation Law.

IN WITNESS WHEREOF, this Restated Certificate has been executed by a duly authorized officer of the Corporation on this      day of         , 2014.

By:
Name:	Brian Lian, Ph.D.
Its:	Chief Executive Officer

EXHIBIT A

VIKING THERAPEUTICS, INC.

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION

ARTICLE I

The name of the corporation is Viking Therapeutics, Inc. (the “Corporation”).

ARTICLE II

The address of the registered offices of the Corporation in the State of Delaware is 2711 Centerville Road, Suite 400, in the City of Wilmington, County of New Castle, Delaware 19808. The name of its registered agent in charge thereof is Corporation Service Company.

ARTICLE III

The purpose of the Corporation is to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of the State of Delaware, as the same may be amended and supplemented from time to time (the “DGCL”).

ARTICLE IV

A. The total number of shares which the Corporation shall have authority to issue is 310,000,000 shares of capital stock, of which 300,000,000 shares shall be designated Common Stock, $0.00001 par value per share (“Common Stock”), and 10,000,000 shares shall be designated Preferred Stock, $0.00001 par value per share (“Preferred Stock”). Subject to the rights of the holders of any series of Preferred Stock, the number of authorized shares of any of the Common Stock or Preferred Stock may be increased or decreased (but not below the number of shares thereof then outstanding) by the affirmative vote of the holders of a majority of the voting power of all then-outstanding shares of capital stock of the Corporation entitled to vote thereon irrespective of the provisions of Section 242(b)(2) of the DGCL, and no vote of the holders of any of the Common Stock or Preferred Stock voting separately as a class shall be required therefor.

1. Common Stock. All preferences, voting powers, relative, participating, optional or other special rights and privileges, and qualifications, limitations or restrictions of the Common Stock are expressly made subject and subordinate to those that may be fixed with respect to any shares of the Preferred Stock. Except as otherwise required by law or this amended and restated certificate of incorporation (this “Certificate of Incorporation”, which term, as used herein, shall mean the certificate of incorporation of the Corporation, as amended from time to time, including the terms of any certificate of designation of any series of Preferred Stock), each share of Common Stock shall entitle the holder thereof to one (1) vote, in person or by proxy, on each matter submitted to a vote of stockholders of the Corporation; provided, however, that, except as otherwise required by law, holders of Common Stock shall not be entitled to vote on any amendment to this Certificate of Incorporation that relates solely to the terms, number of shares, designations, preferences, voting powers, relative, participating, optional or other special rights and privileges, or to qualifications, limitations or restrictions thereon, of one or more outstanding

series of Preferred Stock if the holders of such affected series are entitled, either separately or together with the holders of one or more other such series, to vote thereon pursuant to this Certificate of Incorporation (including, without limitation, by any certificate of designation relating to any series of Preferred Stock) or pursuant to the DGCL. No stockholder shall be entitled to cumulate votes at any election of directors. Subject to the rights of the Preferred Stock, the holders of shares of Common Stock shall be entitled to receive, when and if declared by the Board of Directors of the Corporation (the “Board of Directors”), out of the assets of the Corporation which are by law available therefor, dividends payable either in cash, in property or in shares of capital stock, in such amounts as determined by the Board of Directors. In the event of any dissolution, liquidation or winding up of the affairs of the Corporation, after distribution in full of the preferential amounts, if any, to be distributed to the holders of shares of Preferred Stock, and after payment or provision for payment of the debts and other liabilities of the Corporation, holders of Common Stock and holders of any participating Preferred Stock outstanding at such time shall be entitled, unless otherwise provided by law or this Certificate of Incorporation, to receive all of the remaining assets of the Corporation of whatever kind available for distribution to stockholders ratably in proportion to the number of shares of capital stock of the Corporation held by them respectively.

2. Preferred Stock. The Preferred Stock may be issued from time to time in one or more series, as determined by the Board of Directors. The Board of Directors is expressly authorized to provide for the issue, in one or more series, of all or any of the remaining shares of Preferred Stock and, in the resolution or resolutions providing for such issue, to establish for each such series the number of its shares, the voting powers, full or limited, of the shares of such series, or that such shares shall have no voting powers, and the designations, powers, preferences, relative, participating, optional or other special rights and privileges of the shares of such series, and the qualifications, limitations or restrictions thereof. The Board of Directors is further expressly authorized to increase or decrease (but not below the number of shares of any such series then outstanding) the number of shares of any series, the number of which was fixed by it, subsequent to the issuance of shares of such series then outstanding, subject to the powers, preferences and rights, and the qualifications, limitations and restrictions thereof stated in this Certificate of Incorporation or the resolution of the Board of Directors originally fixing the number of shares of such series. If the number of shares of any series is so decreased, then the shares constituting such decrease shall resume the status which they had prior to the adoption of the resolution originally fixing the number of shares of such series.

ARTICLE V

A. The business and affairs of the Corporation shall be managed by or under the direction of the Board of Directors. The number of directors which shall constitute the whole Board of Directors shall be fixed by, or in the manner provided in, the Bylaws of the Corporation. Other than any directors elected by a separate vote of the holders of one or more series of Preferred Stock, the directors shall be divided into three (3) classes, designated as Class I, Class II and Class III, respectively. Directors shall initially be assigned to each class in accordance with a resolution or resolutions adopted by the Board of Directors. Each class shall consist, as nearly as may be possible, of one-third (1/3) of the total number of directors constituting the entire Board of Directors. The term of office of the Class I directors shall expire at the Corporation’s first annual meeting of stockholders following the closing of the Corporation’s initial public offering pursuant

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to an effective registration statement under the Securities Act of 1933, as amended, covering the offer and sale of Common Stock to the public (the “Initial Public Offering Closing”), the term of office of the Class II directors shall expire at the Corporation’s second annual meeting of stockholders following the Initial Public Offering Closing and the term of office of the Class III directors shall expire at the Corporation’s third annual meeting of stockholders following the Initial Public Offering Closing, with each director to hold office until his or her successor shall have been duly elected and qualified or until his or her earlier death, disqualification, resignation or removal. At each annual meeting of stockholders, directors elected to succeed those directors whose terms expire shall be elected for a term of office to expire at the third succeeding annual meeting of stockholders after their election, with each director to hold office until his or her successor shall have been duly elected and qualified or until his or her earlier death, disqualification, resignation or removal. Directors need not be stockholders of the Corporation. Each director, including a director elected or appointed to fill a vacancy, shall hold office until the expiration of the term of office of the class to which he or she has been chosen expires or until a successor has been duly elected and qualified, or until his or her earlier death, disqualification, resignation or removal; except that if any such election shall not be so held, such election shall take place at a stockholders’ meeting called in accordance with the DGCL.

B. Notwithstanding the foregoing provisions of this Article V, each director shall serve until his or her successor is duly elected and qualified or until his or her earlier death, disqualification, resignation or removal.

C. One (1) or more members of the Board of Directors (including the entire Board of Directors) may be removed at any time, but only for cause, by the affirmative vote of the holders of at least 66 2/3% of the voting power of all then-outstanding shares of capital stock of the Corporation then entitled to vote generally in the election of directors. Notwithstanding the foregoing, and except as otherwise required by law, whenever the holders of any one or more series of Preferred Stock shall have the right, voting separately as a class, to elect one (1) or more directors of the Corporation, the provisions of this Clause C of Article V shall not apply with respect to the director or directors elected by such holders of Preferred Stock.

D. Subject to the rights of the holders of any series of Preferred Stock then outstanding, vacancies occurring on the Board of Directors for any reason and newly created directorships resulting from an increase in the authorized number of directors may be filled only by the vote of a majority of the remaining members of the Board of Directors, even if less than a quorum, or by a sole remaining director. A person so elected by the Board of Directors to fill a vacancy or newly created directorship shall hold office for the remainder of the full term of the director for which the vacancy was created or occurred and until his or her successor shall have been duly elected and qualified or until his or her earlier death, disqualification, resignation or removal. No decrease in the number of directors constituting the Board of Directors shall shorten the term of any incumbent director. In the event of a vacancy in the Board of Directors, the remaining directors, except as otherwise required by law, or by this Certificate of Incorporation or the Bylaws of the Corporation, may exercise the powers of the full Board of Directors until the vacancy is filled.

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ARTICLE VI

A. In furtherance of and not in limitation of the powers conferred by the laws of the State of Delaware, the Board of Directors is expressly empowered to adopt, amend or repeal the Bylaws of the Corporation. Any adoption, amendment or repeal of the Bylaws of the Corporation by the Board of Directors shall require the approval of a majority of the directors then in office. The stockholders shall also have power to adopt, amend or repeal the Bylaws of the Corporation; provided, however, that, in addition to any vote of the holders of any class or series of stock of the Corporation required by law or by this Certificate of Incorporation, such action by stockholders shall require the affirmative vote of the holders of at least 66 2/3% of the voting power of all of the then-outstanding shares of the capital stock of the Corporation entitled to vote generally in the election of directors, voting together as a single class.

B. The directors of the Corporation need not be elected by written ballot unless the Bylaws of the Corporation so provide.

ARTICLE VII

A. No action shall be taken by the stockholders of the Corporation except at an annual or special meeting of the stockholders called in accordance with the Bylaws of the Corporation, and no action shall be taken by the stockholders by written consent.

B. Advance notice of stockholder nominations for the election of directors and of business to be brought by stockholders before any meeting of the stockholders of the Corporation shall be given in the manner provided in the Bylaws of the Corporation.

ARTICLE VIII

A. To the fullest extent permitted by the DGCL, a director of the Corporation shall not be personally liable to the Corporation or its stockholders for monetary damages for breach of fiduciary duty as a director. If the DGCL is amended to authorize corporate action further eliminating or limiting the personal liability of directors, then the liability of a director of the Corporation shall be eliminated or limited to the fullest extent permitted by the DGCL, as so amended.

B. Neither any amendment nor repeal of this Article VIII, nor the adoption of any provision of this Certificate of Incorporation inconsistent with this Article VIII, shall eliminate or reduce the effect of this Article VIII in respect of any matter occurring, or any cause of action, suit or proceeding accruing or arising or that, but for this Article VIII, would accrue or arise, prior to such amendment, repeal or adoption of an inconsistent provision.

ARTICLE IX

A. Subject to any provisions in the Bylaws of the Corporation related to indemnification of directors or officers of the Corporation, the Corporation is authorized to indemnify, to the fullest extent permitted by applicable law, any director, officer, employee or agent of the Corporation who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal,

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administrative or investigative (a “Proceeding”) by reason of the fact that he or she is or was a director, officer, employee or agent of the Corporation or is or was serving at the request of the Corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, including service with respect to employee benefit plans, against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with any such Proceeding.

B. A right to indemnification or to advancement of expenses arising under a provision of this Certificate of Incorporation or the Bylaws of the Corporation shall not be eliminated or impaired by an amendment to this Certificate of Incorporation or the Bylaws of the Corporation after the occurrence of the act or omission that is the subject of the civil, criminal, administrative or investigative action, suit or proceeding for which indemnification or advancement of expenses is sought, unless the provision in effect at the time of such act or omission explicitly authorizes such elimination or impairment after such act or omission has occurred.

ARTICLE X

The Corporation reserves the right to amend, alter, change or repeal any provision contained in this Certificate of Incorporation, in the manner now or hereafter prescribed by statute, and all rights conferred upon the stockholders herein are granted subject to this reservation. Notwithstanding any other provision of this Certificate of Incorporation, and in addition to any other vote that may be required by law or the terms of any series of Preferred Stock, the affirmative vote of the holders of at least 66 2/3% of the voting power of all then-outstanding shares of capital stock of the Corporation entitled to vote generally in the election of directors, voting together as a single class, shall be required to amend, alter or repeal Article V, Article VI, Article VII, Article VIII, Article IX and Article X.

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