Document:

Reinvestment Agreement

 Exhibit 10.3 
 REINVESTMENT AGREEMENT 
 THIS REINVESTMENT AGREEMENT, dated as of August 4, 2009 (this
“Agreement”), is entered into by and among Anesiva, Inc., a Delaware corporation (the “Company”), Arcion Therapeutics, Inc., a Delaware corporation (“Arcion”), and the undersigned investors (each an
“Investor” and collectively, the “Investors”). Unless defined herein, capitalized terms used herein shall have the meanings provided to such terms in the below referenced Securities Purchase Agreement. 

R E C I T A L S: 
 A. WHEREAS, the Company and the Investors are party to that certain Securities Purchase Agreement, dated as of January 20, 2009, as amended by that certain Amendment No. 1 to Securities Purchase Agreement,
dated as of April 1, 2009, as further amended by that certain Amendment No. 2 to Securities Purchase Agreement, dated as of August 4, 2009 (as so amended and as further as amended, restated or otherwise modified and in effect from
time to time, the “Securities Purchase Agreement”), pursuant to which the Investors purchased securities (the “Securities”) from the Company in the amounts set forth on Schedule I hereto. 
 B. WHEREAS, certain of the Investors are holders of 7% Senior Notes due 2010 (the “Notes”) in the amounts set forth on Schedule I
hereto issued pursuant to that certain Indenture, dated as of April 2, 2009, as supplemented by that certain Supplemental Indenture, dated as of April 2, 2009 (the “First Supplemental Indenture”), as further
supplemented by that certain Second Supplemental Indenture, dated as of April 28, 2009 (as so supplemented and as further supplemented, amended, restated or otherwise modified and in effect from time to time, the “Indenture”),
by and between the Company and the Bank of New York Mellon Trust Company, N.A., as trustee (the “Trustee”). 
 C. WHEREAS,
on the date hereof, the Company, Arca Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of the Company (“Merger Sub”), Arcion and each of the stockholders of Arcion are entering into an Agreement and Plan
of Merger (as amended, restated or otherwise modified and in effect from time to time, the “Merger Agreement”), providing for the merger of Merger Sub with and into Arcion (the “Merger”). 
 D. WHEREAS, pursuant to Section 8.2 (Change of Control) of the Securities Purchase Agreement, concurrently with the consummation of the Merger, the
Company shall redeem all of the outstanding Securities at a redemption price in cash equal to 100% of the aggregate principal amount of the Securities being redeemed, plus all accrued but unpaid returns thereon through the date of redemption.

 E. WHEREAS, pursuant to Section 5.1 (Right to Require Repurchase) of the First Supplemental Indenture, following the consummation of
the Merger, the Company shall offer to repurchase all of the Notes from the holders thereof at a purchase price equal to the Change of Control Repurchase Price (as defined in the First Supplemental Indenture), plus all accrued but unpaid interest
thereon to, but excluding, the date of repurchase. 
 F. WHEREAS, each Investor wishes to reinvest the gross proceeds of the redemption or
repurchase of any and all of its outstanding Securities and Notes, together with any accrued but unpaid returns and interest thereon, in connection with the Merger by purchasing common stock, par value $0.001 per share, of the Company
(“Common Stock”) at a price per share of $0.30. 

 NOW THEREFORE, in consideration of the mutual conditions and agreements set forth herein and other good
and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows: 
 1.
Agreement to Reinvest Securities Proceeds. Immediately following the redemption by the Company of the Securities held by the Investors, each Investor hereby agrees to purchase from the Company, and the Company hereby agrees to issue and sell
to each Investor, Common Stock in an amount set forth opposite such Investor’s name on Schedule I hereto for the purchase price of $0.30 per share. The aggregate purchase price of Common Stock purchased by each Investor pursuant to this
Section 1 shall equal the gross proceeds of the redemption of any and all of the outstanding Securities held by such Investor, together with any accrued but unpaid returns thereon through the redemption date. 
 2. Agreement to Reinvest Note Proceeds. Each Investor that is a holder of Notes agrees to exercise its right pursuant to Section 5.1 of the
First Supplemental Indenture to require the Company to repurchase all of such Investor’s Notes on the terms and conditions set forth in Article 5 of the First Supplemental Indenture following the consummation of the Merger. Concurrently with
the repurchase by the Company of the Notes held by the Investors, each Investor hereby agrees to purchase from the Company, and the Company hereby agrees to sell to each Investor, Common Stock in an amount set forth opposite such Investor’s
name on Schedule I hereto for the purchase price of $0.30 per share. As payment in full of the purchase price of Common Stock purchased by each Investor pursuant to this Section 2, each such Investor hereby directs the Company to remit
any and all amounts due to such Investor pursuant to the Indenture on account of the repurchase of its Notes, including any accrued but unpaid interest thereon to, but excluding, the date of the repurchase, by wire transfer of immediately available
funds to an account designated in writing by the Company. The aggregate purchase price of Common Stock purchased by each Investor pursuant to this Section 2 shall equal the gross proceeds of the repurchase of any and all of the outstanding
Notes held by such Investor, together with any accrued but unpaid interest thereon through the redemption date. 
 3. Representations and
Warranties of Investors. Each Investor, severally and not jointly, represents and warrants to the Company and Arcion as follows as of the date hereof and as of the date(s) of purchase by such Investor of any Common Stock pursuant to
Section 1 or Section 2 hereof (capitalized terms used in this Section 3 and not otherwise defined herein or in the Securities Purchase Agreement shall have the meanings provided to such terms in the Merger Agreement): 
 3.1. Organization. Such Investor is duly organized, validly existing and in good standing under the laws of the jurisdiction in which it is
organized. 
 3.2. Authorization; Enforceability. Such Investor has the requisite power and authority (including all requisite power
and authority as a corporation or other entity) to enter into this Agreement and to perform its obligations hereunder. The execution and delivery of this Agreement by such Investor and the performance of its obligations hereunder have been duly
authorized by all necessary action on the part of such Investor (including authorization by the board of directors or other managing body and by the stockholders or other securityholders of such Investor). This Agreement has been duly authorized and
validly executed and delivered by such Investor and constitutes a legal, valid and binding obligation of such Investor, enforceable against the such Investor in accordance with its terms, subject to bankruptcy, insolvency, fraudulent transfer,
reorganization, moratorium and similar laws of general applicability relating to or affecting creditors’ rights and to general equity principles. 
 3.3. Consents and Approvals; No Violations. 
 (a) The execution and delivery of this Agreement by such
Investor does not, and the performance by such Investor of such Investor’s obligations hereunder will not, (i) conflict with 

  

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or result in any violation or breach of the certificate of incorporation, by-laws or other organization documents of such Investor, (ii) to the
Investor’s knowledge, materially conflict with or result in any material violation or material breach of, or constitute (with or without notice or lapse of time, or both) a material default (or give rise to a right of termination, cancellation
or acceleration of any obligation or loss of any material benefit) under, require a consent or waiver under, require the payment of a material penalty under, any of the terms, conditions or provisions of any material contract to which such Investor
is a party or by which such Investor or such Investor’s Securities or Notes may be bound or (iii) result in the imposition of any lien on any of the Securities or Notes held by such Investor. 
 3.4. Title to Securities or Notes. Such Investor holds of record and owns the aggregate principal amount of Notes and Securities set forth
opposite the name of such Investor on Schedule I hereto, free and clear of any lien. 
 3.5. No Broker’s or Finder’s
Fees. There are no investment bankers, brokers, advisors, finders or other intermediaries that have been retained by or are authorized to act on behalf of such Investor who are entitled to any fee or commission in connection with the
transactions contemplated by this Agreement. 
 3.6. Private Placement. Such Investor understands and acknowledges that the issuance
of the shares of Common Stock pursuant to this Agreement will not be registered under the Securities Act of 1933, as amended (the “Securities Act”) and that any shares of Common Stock will be issued to such Investor in a private
placement transaction effected in reliance on an exemption from the registration requirements of the Securities Act and in reliance on exemptions from the registration or qualification requirements of applicable Blue Sky Laws. Such Investor
acknowledges that any shares of Common Stock so issued to such Investor will be “restricted securities” within the meaning of Rule 144(a)(3) under the Securities Act. Such Investor represents and acknowledges that such Investor is familiar
with Rule 144 under the Securities Act as presently in effect and understands the restrictions and resale limitations imposed thereby and by the Securities Act. 
 3.7. Limitations on Transfer. Such Investor understands and agrees that any such shares of Common Stock cannot be offered, resold or otherwise transferred except pursuant to (a) an effective registration
statement under the Securities Act covering such offer, sale or transfer and such offer, sale or transfer is made in accordance with such registration statement, or (b) an available exemption from registration. Such Investor hereby covenants
and agrees that such Investor will not offer, sell or otherwise transfer any such shares of Common Stock except in compliance with the terms of this Agreement and with applicable federal and Blue Sky Laws. 
 3.8. Restrictive Legends. The certificates representing any shares of Common Stock issued pursuant to the Merger shall bear, in addition to any
other legends required under applicable Blue Sky Laws, a legend in substantially the following form: 
 (a) These securities have not been
registered under the Securities Act of 1933, as amended (the “Securities Act”), or under any applicable state securities or “blue sky” laws. These securities may not be sold, offered, pledged, hypothecated or otherwise
transferred except pursuant to registration under the Securities Act or pursuant to an available exemption from registration. The issuer of these securities may require an opinion of counsel reasonably satisfactory to the issuer, in form and
substance reasonably satisfactory to the issuer, to the effect that any sale or transfer of these securities will be in compliance with the Securities Act and any applicable state securities or “blue sky” laws. 
 (b) In order to prevent any transfer from taking place in violation of applicable law or the terms of this Agreement, the Company may cause a stop
transfer order to be placed with its transfer agent with respect to any shares of Common Stock issued to such Investor pursuant to the 

  

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Reinvestment Agreement. The Company will not be required to transfer on its books any shares of Common Stock that have been sold or transferred in violation
of any provision of applicable law or the terms of this Agreement. 
 3.9. Accredited Investor. Such Investor is an “accredited
investor” within the meaning of Rule 501(a) of Regulation D under the Securities Act, as presently in effect. 
 3.10. Investment
Intent. Such Investor is acquiring the shares of Common Stock issued pursuant to this Agreement for such Investor’s own account for investment and not with a view to, or for resale in connection with, the distribution thereof, without
prejudice, however, to such Investor’s rights to dispose of all or any part of such shares of Common Stock under an exemption from the registration requirements of the Securities Act. Such Investor has no present intention of selling or
otherwise distributing any portion of any such shares of Common Stock (or any interest therein), subject to such rights as aforesaid. If such Investor is not an individual, such Investor has not been formed to acquire any shares of Common Stock
issuable to such Investor pursuant to this Agreement.  
 3.11. Investment Experience and Status. Such Investor has such
knowledge and experience in financial and business matters that such Investor is capable of evaluating the merits and risks of an investment in Common Stock and protecting such Investor’s own interests in connection with such investment.

 3.12. Documents Delivered; Information. Such Investor acknowledges that such Investor has received a copy of this Agreement and
been afforded the opportunity to review the schedule hereto. Such Investor has received or has had access to all the information relating to the Company that such Investor has requested and considers necessary and relevant to making an informed
investment decision with respect to the shares of Common Stock, including the annual reports, quarterly reports, current reports, proxy statements and other information filed by the Company with the SEC. Such Investor has been given the opportunity
to make a thorough investigation of the activities of the Company and has been furnished with access to materials relating to the Company and its activities. Such Investor has been afforded the opportunity to obtain any additional information deemed
necessary by such Investor to verify the accuracy of the information conveyed by the Company to such Investor. Such Investor has had an opportunity to ask questions of and receive answers from the Company, or from a person or persons acting on the
Company’s behalf, concerning the terms and conditions of this investment. 
 3.13. Professional Advice. With respect to the
legal, tax, accounting, financial and other economic considerations involved in acquiring any shares of Common Stock, such Investor is not relying on the Company, Merger Sub, Arcion or any other Investor, or any director, officer, employee, agent or
other representative of any of the foregoing. 
 3.14. Further Representations by Foreign Investors. If such Investor is not a United
States person, such Investor hereby represents that such Investor is satisfied as to the full observance of the laws of such Investor’s jurisdiction in connection with acquiring any shares of Common Stock and the execution and delivery by such
Investor of this Agreement and any other instrument or document executed and delivered by such Investor pursuant hereto, including (a) the legal requirements within such Investor’s jurisdiction for acquiring any shares of Common Stock
issued pursuant to this Agreement, (b) any foreign exchange restrictions applicable to any such acquisition of shares of Common Stock issued in connection with this Agreement, (c) any governmental or other consents that may need to be
obtained, and (d) the income tax and other tax consequences, if any, that may be relevant to the purchase, holding, redemption, sale, or transfer of any shares of Common Stock issued pursuant to this Agreement. 
  

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 4. Delivery of Certificates Representing Common Stock Purchased. 
 4.1. Common Stock to be Issued on account of Securities. Upon receipt of the aggregate purchase price contemplated by Section 1 hereof with
respect to any Investor, the Company shall deliver to such Investor a duly endorsed stock certificate in the name of such Investor representing Common Stock in an amount set forth opposite such Investor’s name in the column titled “Common
Stock to be Issued on Account of Securities” on Schedule I hereto. 
 4.2. Common Stock to be Issued on account of Notes. Upon
receipt of the aggregate purchase price contemplated by Section 2 hereof with respect to any Investor, the Company shall deliver to such Investor a duly endorsed stock certificate in the name of such Investor representing Common Stock in an
amount set forth opposite such Investor’s name in the column titled “Common Stock to be Issued on Account of Notes” on Schedule I hereto. 
 5. Consent to Merger. Each Investor hereby consents to the execution, delivery and performance of the Merger Agreement and the consummation of the Merger and the other transactions contemplated thereby and
waives the observance by the Company of any provisions in the Securities Purchase Agreement to the extent necessary to effect such consent. The consent provided by the Investors in this Section 5 shall terminate automatically and no longer be
effective in the event of a termination of this Agreement in accordance with Section 6 hereof. 
 6. Termination. The
Investors’ obligations pursuant to Section 1 and Section 2 hereof are contingent upon the consummation of the Merger. This Agreement shall terminate automatically upon the earliest to occur of (i) termination of the Merger
Agreement in accordance with the terms thereof, (ii) the date on which the Company’s Board of Directors withdraws or modifies in a manner adverse to Arcion the Parent Recommendation (as defined in the Merger Agreement) in accordance with
Section 6.6(b) of the Merger Agreement, or (iii) upon mutual written agreement of the parties to terminate this Agreement. Upon termination of this Agreement, no party shall have any further obligations or liabilities under this Agreement.

 7. Counterparts. This Agreement may be executed in one or more counterparts, each of which shall constitute an original, but all of
which taken together shall be one and the same agreement. 
 8. Governing Law. This Agreement shall be governed by and construed
according to the laws of the State of California, without regard to conflict of law principles thereof. 
 9. Entire Agreement;
Survival. This Agreement constitutes the entire agreement of the parties hereto in respect of the subject matter hereof, and supersedes any and all prior agreements or understandings between the parties hereto in respect of such subject matter.
The representations and warranties of the parties contained in this Agreement shall survive the execution and delivery of this Agreement and the consummation of the transactions contemplated hereby. The Company and the Investors acknowledge and
agree that the execution and delivery of this agreement by such parties is a material inducement and a condition precedent to Arcion’s agreement to enter into the Merger Agreement. 
 [Signature Pages Follow] 
  

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 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed and delivered by
their respective duly authorized officers on the date first written above. 
  

			
	ANESIVA, INC.
		
	By:	 	 /s/ Michael Kranda

	Name:	 	Michael Kranda
	Title:	 	Chief Executive Officer, President
	
	ARCION THERAPEUTICS, INC.
		
	By:	 	 /s/ James N. Campbell

	Name:	 	James N. Campbell
	Title:	 	Chief Executive Officer

					
	INVESTORS:
	
	SOFINNOVA VENTURE PARTNERS VII, L.P.
			
	By:	 		 	Sofinnova Management VII, L.L.C.
		 		 	Its General Partner
		
	By:	 	 /s/ Michael F. Powell

		 		 	Michael F. Powell, Managing General Partner
	
	ALTA CALIFORNIA PARTNERS III, L.P.
			
	By:	 		 	Alta California Management Partners III, LLC
		
	By:	 	 /s/ Hilary Strain

		 		 	Vice President of Finance & Administration
	
	ALTA EMBARCADERO PARTNERS III, LLC
		
	By:	 	 /s/ Hilary Strain

		 		 	Vice President of Finance & Administration
	
	ALTA PARTNERS VIII, LP
			
	By:	 		 	Alta Partners Management VIII, LLC
		
	By:	 	 /s/ Hilary Strain

		 		 	Chief Financial Officer
	
	CMEA VENTURES VII, L.P.
		
	By:	 	CMEA Ventures VII GP, L.P.,
		 	Its General Partner
		
	By:	 	CMEA Ventures VII GP, LLC,
		 	Its General Partner
		
	By:	 	 /s/ David Collier

		 		 	Name: David Collier
		 		 	Title: Manager

					
	CMEA VENTURES VII (PARALLEL), L.P.
			
	By:	 		 	CMEA Ventures VII GP, L.P.,
		 		 	Its General Partner
			
	By:	 		 	CMEA Ventures VII GP, LLC,
		 		 	Its General Partner
		
	By:	 	 /s/ David Collier

		 		 	Name: David Collier
		 		 	Title: Manager
	
	INTERWEST PARTNERS VIII, LP
	INTERWEST INVESTORS VIII, LP
	INTERWEST INVESTORS Q VIII, LP
			
	By:	 		 	InterWest Management Partners VIII, LLC,
		 		 	General Partner
	
	 /s/ Arnold L. Oronsky

	By: Arnold L. Oronsky, Managing Director

 Schedule I 
 Allocation of Common Stock 
  

															
	 Investor
	  	Principal
Amount of
Securities
Held	  	Accrued
Returns on
Securities1	  	Principal
Amount of
Notes Held	  	Accrued
Interest on
Notes2	  	Common
Stock to be
Issued on
account of
Securities3	  	Common
Stock to be
Issued on
account of
Notes4
	 SOFINNOVA VENTURE PARTNERS VII, L.P.
	  	$	1,890,000.00	  		  	 	N/A	  	N/A	  		  	N/A
	 ALTA CALIFORNIA PARTNERS III, L.P.
	  	 	136,196.67	  		  	 	N/A	  	N/A	  		  	N/A
	 ALTA EMBARCADERO PARTNERS III, LLC
	  	 	4,598.33	  		  	 	N/A	  	N/A	  		  	N/A
	 ALTA PARTNERS VIII, LP
	  	 	1,659,205	  		  	 	N/A	  	N/A	  		  	N/A
	 CMEA VENTURES VII, L.P.
	  	 	682,500.00	  		  	$	279,681.00	  		  		  	
	 CMEA VENTURES VII (PARALLEL), L.P.
	  	 	17,500.00	  		  	 	7,171.00	  		  		  	
	 INTERWEST PARTNERS VIII, LP
	  	 	1,823,283.00	  		  	 	385,880.00	  		  		  	
	 INTERWEST INVESTORS VIII, LP
	  	 	14,553.00	  		  	 	3,080.00	  		  		  	
	 INTERWEST INVESTORS Q VIII, LP
	  	 	52,164.00	  		  	 	11,040.00	  		  		  	

  

	1
	 To come based on Securities redemption date. 

	2
	 To come based on Notes redemption date. 

	3
	 To come based on Securities redemption date. 

	4
	 To come based on Notes redemption date.Amended and Restated Executive Change in Control and Severance Benefit Plan

 Exhibit 10.4 
 ANESIVA, INC. 
 AMENDED AND RESTATED EXECUTIVE CHANGE IN CONTROL AND 
 SEVERANCE BENEFIT PLAN 
 SECTION 1.
INTRODUCTION. 
 This Anesiva, Inc. Amended and Restated Executive Change in Control and Severance Benefit Plan (the
“Plan”) shall become effective automatically upon (but only upon) the Effective Time of the Merger (as such terms are defined in that certain Agreement and Plan of Merger among the Company, Arcion Therapeutics, Inc. and the
other parties thereto, dated as of August 4, 2009 (the “Merger Agreement”)) and at the Effective Time shall amend and restate in its entirety that certain Anesiva, Inc. Change in Control and Severance Benefit Plan dated
as of July 29, 2005, as amended as of March 31, 2008 and January 20, 2009. The purpose of the Plan is to provide for the payment to certain eligible executive employees of Anesiva, Inc. (the “Company”) of
certain severance benefits in the event that such employees are subject to qualifying employment terminations in connection with a Change in Control. This Plan shall supersede any change in control or severance benefit plan, policy, or practice
previously maintained by the Company, other than an individually negotiated contract or agreement with the Company relating to change in control or severance benefits that is in effect on the effective date of a Change in Control or an
employee’s termination date which provides benefits that the Plan Administrator (as such term is defined below), in its sole discretion, determines to be of greater value than the benefits provided for in this Plan, in which case such
employee’s change in control benefit or severance benefit, if any, shall be governed by the terms of such individually negotiated employment contract or agreement and shall be governed by this Plan only to the extent that the reduction pursuant
to Section 5(b) below does not entirely eliminate benefits under this Plan. This Plan shall not supersede any benefit provided pursuant to an equity compensation plan or program maintained by the Company. This document also constitutes the
Summary Plan Description for the Plan. 
 SECTION 2. DEFINITIONS. 
 For purposes of the Plan, the following terms are defined as follows: 
 (a) “Base Salary” means the Eligible Employee’s annual base pay (excluding incentive pay, premium pay, commissions, overtime, bonuses and other forms of variable compensation), at
the rate in effect during the last regularly scheduled payroll period immediately preceding the date of the Eligible Employee’s Covered Termination. 
 (b) “Board” means the Board of Directors of Anesiva, Inc. 
  

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 (c) “Change in Control” means the occurrence of any one or more of the
following events: 
 (i) any transaction or series of related transactions resulting in the sale or issuance of securities or any
rights to securities of the Company representing in the aggregate more than fifty percent (50%) of the Company’s issued and outstanding voting securities, on a fully diluted basis, or any transaction or series of related transactions
resulting in the sale, transfer, assignment or other conveyance or disposition of any securities or any rights to securities of the Company by any holder or holders thereof representing in the aggregate more than fifty percent (50%) of the
issued and outstanding voting securities of the Company; 
 (ii) a merger, consolidation, reorganization, recapitalization or share
exchange (whether or not the Company is the surviving and continuing entity) in which the stockholders or equityholders of the Company immediately prior to such transaction receive, in exchange for securities of the Company owned by them (whether
alone or together with cash, property or other securities), cash, property or securities of the resulting or surviving entity and as a result thereof persons who were holders of voting securities of the Company immediately prior to such transaction
hold less than fifty percent (50%) of the issued and outstanding capital stock of the resulting or surviving entity entitled to vote in the election of directors, managers or similar governing body or otherwise; and 
 (iii) a sale, transfer, exclusive license, exclusive partnering arrangement or other disposition in a single transaction or series of related
transactions of fifty percent (50%) or more of the assets of the Company and its subsidiaries, on a consolidated basis, other than sales of inventory in good faith to customers for fair value in the ordinary course of business and dispositions
of obsolete equipment not used or useful in the business of the Company and its subsidiaries; provided, however, that a sale, transfer, exclusive license, exclusive partnering arrangement or other disposition in a single transaction or series of
related transactions of the Company’s Adlea assets shall not be deemed a Change in Control. 
 The term Change in Control shall not
include a sale of assets, merger or other transaction effected exclusively for the purpose of changing the domicile of the Company. Once a Change in Control has occurred, no future events shall constitute a Change in Control for purposes of the
Plan. For purposes of the Plan, the Closing of the Merger (as such terms are defined in the Merger Agreement) shall constitute a Change in Control. 
 (d) “COBRA” means the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended. 
 (e)
“Code” means the Internal Revenue Code of 1986, as amended. 
 (f) “Company” means
Anesiva, Inc. or, following a Change in Control, the surviving entity resulting from such transaction. 
 (g) “Constructive
Termination” means a voluntary termination of employment by an Eligible Employee after one of the following is undertaken without the Eligible Employee’s express written consent: 
 (i) the assignment to the Eligible Employee of any duties or responsibilities which results in a significant diminution in the Eligible
Employee’s function as in effect immediately prior to the effective date of the Change in Control; provided, however, that a mere change in the Eligible Employee’s title shall not constitute a Constructive Termination;

  

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 (ii) a five percent (5%) or greater reduction by the Company in an Eligible Employee’s
annual base salary, as in effect on the effective date of the Change in Control; 
 (iii) any failure by the Company to continue in
effect any benefit plan or program, including fringe benefits, incentive plans and plans with respect to the receipt of securities of the Company, in which an Eligible Employee is participating immediately prior to the effective date of the Change
in Control (hereinafter referred to as “Benefit Plans”); or the taking of any action by the Company that would adversely affect an Eligible Employee’s participation in or reduce the Eligible Employee’s benefits
under the Benefit Plans; provided, however, that a “Constructive Termination” shall not exist under this paragraph following a Change in Control if the Company offers a range of benefit plans and programs which, taken as a whole,
are comparable to the Benefit Plans; or 
 (iv) a relocation of an Eligible Employee’s business office to a location more than
thirty-five (35) miles from the location at which the Eligible Employee performs duties as of the effective date of the Change in Control, except for required travel by the Eligible Employee on the Company’s business to an extent
substantially consistent with the Eligible Employee’s business travel obligations prior to the Change in Control. 
 (h)
“Covered Termination” means either (A) an Involuntary Termination Without Cause which occurs within three (3) months prior to or twelve (12) months following the effective date of a Change in Control, or
(B) a Constructive Termination which occurs within twelve (12) months following the effective date of a Change in Control. Termination of employment of an Eligible Employee due to death or disability shall not constitute a Covered
Termination unless a voluntary termination of employment by the Eligible Employee immediately prior to the Eligible Employee’s death or disability would have qualified as a Constructive Termination. 
 (i) “Eligible Employee” means an individual (A) who is employed by the Company as an officer; and (B) who is
designated by the Board as an Eligible Employee. 
 (j) “Entity” means a corporation, partnership or other
entity. 
 (k) “ERISA” means the Employee Retirement Income Security Act of 1974, as amended. 
 (l) “Involuntary Termination Without Cause” means an involuntary termination by the Company of an Eligible Employee’s
employment relationship with the Company for any reason other than the following: 
 (i) the Eligible Employee has committed an act
that materially injures the business of the Company; 
 (ii) the Eligible Employee has refused or failed to follow lawful and
reasonable directions of the Board or the appropriate individual to whom the Eligible 

  

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Employee reports, without cure within fifteen (15) days following receipt by the Eligible Employee of written notice from the Company or the Board
specifying the particulars of the Eligible Employee’s conduct; 
 (iii) the Eligible Employee has willfully or habitually
neglected the Eligible Employee’s duties with the Company, without cure within fifteen (15) days following receipt by the Eligible Employee of written notice from the Company or the Board specifying the particulars of the Eligible
Employee’s conduct; 
 (iv) the Eligible Employee has been convicted of a felony; or 
 (v) the Eligible Employee has committed a fraud, misappropriation, embezzlement or other act of gross dishonesty that resulted in loss, damage or
injury to the Company. 
 (m) “Own,” “Owned,” “Owner,”
“Ownership” A person or Entity shall be deemed to “Own,” to have “Owned,” to be the “Owner” of, or to have acquired “Ownership” of securities if such person or Entity, directly or
indirectly, through any contract, arrangement, understanding, relationship or otherwise, has or shares voting power, which includes the power to vote or to direct the voting, with respect to such securities. 
 (n) “Plan Administrator” means the Board or any committee duly authorized by the Board to administer the Plan. The Plan
Administrator may, but is not required to be, the Compensation Committee of the Board. The Board may at any time administer the Plan, in whole or in part, notwithstanding that the Board has previously appointed a committee to act as the Plan
Administrator. 
 (o) “Subsidiary” means, with respect to the Company, (A) any corporation of which more
than fifty percent (50%) of the outstanding capital stock having ordinary voting power to elect a majority of the board of directors of such corporation (irrespective of whether, at the time, stock of any other class or classes of such
corporation shall have or might have voting power by reason of the happening of any contingency) is at the time, directly or indirectly, Owned by the Company, and (B) any partnership in which the Company has a direct or indirect interest
(whether in the form of voting or participation in profits or capital contribution) of more than fifty percent (50%). 
 SECTION 3.
ELIGIBILITY FOR BENEFITS. 
 (a) General Rules. Subject to the limitations set forth
in this Section 3 and Section 5, in the event of a Covered Termination, the Company shall provide the severance benefits described in Section 4 to each effected Eligible Employee. 
 (b) Exceptions to Benefit Entitlement. An employee, including an employee who otherwise is an Eligible Employee, will not receive benefits under
the Plan (or will receive reduced benefits under the Plan) in the following circumstances, as determined by the Plan Administrator in its sole discretion: 
 (i) with respect to the benefits provided pursuant to Section 4(a)(i): 
  

 4 

 (1) The employee has executed an individually negotiated employment contract or agreement with
the Company relating to severance or change in control benefits (except those provided pursuant to an equity compensation plan or program maintained by the Company) that is in effect on his or her termination date and which provides benefits that
the Plan Administrator, in its sole discretion, determines to be of greater value than the benefits provided for in this Plan, in which case such employee’s severance or change in control benefit, if any, shall be governed by the terms of such
individually negotiated employment contract or agreement and shall be governed by this Plan only to the extent that the reduction pursuant to Section 5(b) below does not entirely eliminate benefits under this Plan. 
 (2) The employee is entitled to receive benefits under another severance benefit plan maintained by the Company (e.g., the Anesiva, Inc.
Severance Benefit Plan). 
 (3) The employee’s employment terminates or is terminated for any reason other than a Covered
Termination. 
 (4) The employee voluntarily terminates employment with the Company in order to accept employment with another entity
that is controlled (directly or indirectly) by the Company or is otherwise an affiliate of the Company. 
 (5) The employee does not
confirm in writing that he or she shall be subject to the Company’s proprietary information or confidentiality agreement with the Company. 
 (6) The employee is rehired by the Company prior to the date benefits under the Plan are scheduled to commence. 
 (7)
The employee is offered an identical or substantially equivalent or comparable position with the Company or a successor pursuant to a Change in Control. For purposes of the foregoing, a “substantially equivalent or comparable position”
is one that offers the employee substantially the same level of responsibility and compensation; provided, however, that an employee shall not be considered to be offered a “substantially equivalent or comparable position” if a
voluntary termination by the employee would constitute Constructive Termination. 
 (c) Termination of Benefits. An Eligible
Employee’s right to receive benefits pursuant to Section 4(a)(i) under this Plan shall terminate immediately if, at any time prior to or during the period for which the Eligible Employee is receiving benefits hereunder, the Eligible
Employee, without the prior written approval of the Plan Administrator: 
 (i) willfully breaches a material provision of the Eligible
Employee’s proprietary information or confidentiality agreement with the Company, as referenced in Section 3(b)(v); 
 (ii)
encourages or solicits any of the Company’s then current employees to leave the Company’s employ for any reason or interferes in any other manner with employment relationships at the time existing between the Company and its then
current employees; or 
  

 5 

 (iii) induces any of the Company’s then current clients, customers, suppliers, vendors,
distributors, licensors, licensees or other third party to terminate their existing business relationship with the Company or interferes in any other manner with any existing business relationship between the Company and any then current client,
customer, supplier, vendor, distributor, licensor, licensee or other third party. 
 SECTION 4. AMOUNT OF
BENEFITS. 
 (a) Benefits. The Company shall provide benefits to each Eligible Employee in an amount equal to the
amounts in Section 4(a)(i) set forth below, as applicable. 
 (i) Benefits in Connection with a Covered Termination. In the event
an Eligible Employee’s employment with the Company terminates due to a Covered Termination, the Company shall provide the benefits in this Section 4(a)(i). 
 (1) Cash Severance Benefits. The Company shall make cash severance payments to each Eligible Employee in an amount equal to the following: 
 a. For the CEO (i) two times the Eligible Employee’s Base Salary, as in effect on the date of a Covered Termination, or, if higher, as
in effect immediately prior to the Change in Control, plus (ii) the Eligible Employee’s maximum annual target cash bonus, as in effect on the date of a Covered Termination, or, if higher, as in effect immediately prior to the Change in
Control (the “Target Bonus”). 
 b. For officers other than the CEO (i) one times the Eligible Employee’s Base
Salary, as in effect on the date of a Covered Termination, or, if higher, as in effect immediately prior to the Change in Control, plus (ii) the Eligible Employee’s Target Bonus, as defined above 
 (2) Health Continuation Coverage. 
 a. Provided that the Eligible Employee is eligible for, and has made an election at the time of the Covered Termination pursuant to COBRA under a health, dental, or vision plan sponsored by the Company, each such Eligible Employee
shall be entitled to payment by the Company of all of the applicable premiums (inclusive of premiums for the Eligible Employee’s dependents for such health, dental, or vision plan coverage as in effect immediately prior to the date of the
Covered Termination) for such health, dental, or vision plan coverage for a period of six (6) months following the date of the Covered Termination, with such coverage counted as coverage pursuant to COBRA. 
 b. No such premium payments (or any other payments for health, dental, or vision coverage by the Company) shall be made following the effective
date of the Eligible Employee’s coverage by a health, dental, or vision insurance plan of a subsequent employer. Each Eligible Employee shall be required to notify the Plan Administrator immediately if the Eligible Employee becomes covered by a
health, dental, or vision insurance 

  

 6 

 
plan of a subsequent employer. Upon the conclusion of such period of insurance premium payments made by the Company, the Eligible Employee will be
responsible for the entire payment of premiums required under COBRA for the duration of the COBRA period. 
 c. For purposes of this
Section 4(a)(i)(2), (A) references to COBRA shall be deemed to refer also to analogous provisions of state law, and (B) any applicable insurance premiums that are paid by the Company shall not include any amounts payable by the
Eligible Employee under an Internal Revenue Code Section 125 health care reimbursement plan, which amounts, if any, are the sole responsibility of the Eligible Employee. 
 (3) Outplacement Assistance. Each Eligible Employee shall receive outplacement services for a period of three months to assist the Eligible
Employee in finding new employment. Such services shall commence not later than three months after the Eligible Employee’s termination date. 
 (4) Other Employee Benefits. All other benefits (such as life insurance, disability coverage, and 401(k) plan coverage) shall terminate as of the Eligible Employee’s termination date (except to the extent that a conversion
privilege may be available thereunder). 
 (5) Additional Benefits. Notwithstanding the foregoing, the Plan Administrator may, in its
sole discretion, provide benefits in addition to those pursuant to Sections 4(a)(i)(1), 4(a)(i)(2), and 4(a)(i)(3) to Eligible Employees or employees who are not Eligible Employees (“Non-Eligible Employees”) chosen by the
Plan Administrator, in its sole discretion, and the provision of any such benefits to an Eligible Employee or a Non-Eligible Employee shall in no way obligate the Company to provide such benefits to any other Eligible Employee or to any other
Non-Eligible Employee, even if similarly situated. If benefits under the Plan are provided to a Non-Eligible Employee, references in the Plan to “Eligible Employee” (with the exception of Sections 4(a)(i)(1), 4(a)(i)(2), and 4(a)(i)(3))
shall be deemed to refer to such Non-Eligible Employee. 
 SECTION 5. LIMITATIONS ON BENEFITS.

 (a) Release. In order to be eligible to receive benefits under Section 4 of the Plan, an Eligible Employee must execute a
general waiver and release in substantially the form attached hereto as Exhibit A, Exhibit B, or Exhibit C, as appropriate, and such release must become effective in accordance with its terms. Unless a Change in Control has
occurred, the Plan Administrator, in its discretion, may modify the form of the required release to comply with applicable law and shall determine the form of the required release, which may be incorporated into a termination agreement or other
agreement with the Eligible Employee. 
 (b) Certain Reductions. The Plan Administrator, in its sole discretion, shall have the
authority to reduce an Eligible Employee’s benefits, in whole or in part, by any other benefits, pay in lieu of notice, or other similar benefits payable to the Eligible Employee by the Company that become payable in connection with the
Eligible Employee’s termination of employment pursuant to (i) any applicable legal requirement, including, without limitation, the Worker Adjustment and Retraining Notification Act (the “WARN Act”), (ii) a
written 

  

 7 

 
employment or severance agreement with the Company, or (iii) any Company policy or practice providing for the Eligible Employee to remain on the payroll
for a limited period of time after being given notice of the termination of the Eligible Employee’s employment. The benefits provided in Section 4(a)(i) under this Plan are intended to satisfy, in whole or in part, any and all statutory
obligations that may arise out of an Eligible Employee’s termination of employment, and the Plan Administrator shall so construe and implement the terms of the Plan. The Plan Administrator’s decision to apply such reductions to the
severance benefits of one Eligible Employee and the amount of such reductions shall in no way obligate the Plan Administrator to apply the same reductions in the same amounts to the severance benefits of any other Eligible Employee, even if
similarly situated. In the Plan Administrator’s sole discretion, such reductions may be applied on a retroactive basis, with severance benefits previously paid being re-characterized as payments pursuant to the Company’s statutory
obligation. 
 (c) Parachute Payments. Except as otherwise provided in an agreement between an Eligible Employee and the Company, if
any payment or benefit the Eligible Employee would receive in connection with a Change in Control from the Company or otherwise (“Payment”) would (i) constitute a “parachute payment” within the meaning of
Section 280G of the Code, and (ii) but for this sentence, be subject to the excise tax imposed by Section 4999 of the Code (the “Excise Tax”), then such Payment shall be equal to the Reduced Amount. The
“Reduced Amount” shall be either (x) the largest portion of the Payment that would result in no portion of the Payment being subject to the Excise Tax, or (y) the largest portion, up to and including the total, of the Payment,
whichever amount, after taking into account all applicable federal, state and local employment taxes, income taxes, and the Excise Tax (all computed at the highest applicable marginal rate), results in the Eligible Employee’s receipt of the
greatest economic benefit notwithstanding that all or some portion of the Payment may be subject to the Excise Tax. If a reduction in payments or benefits constituting “parachute payments” is necessary so that the Payment equals the
Reduced Amount, reduction shall occur in a manner necessary to provide the Eligible Employee with the greatest economic benefit. If more than one manner of reduction of payments or benefits necessary to arrive at the Reduced Amount yields the
greatest economic benefit, the payments and benefits shall be reduced pro rata. 
 (d) Mitigation. Except as otherwise specifically
provided herein, an Eligible Employee shall not be required to mitigate damages or the amount of any payment provided under this Plan by seeking other employment or otherwise, nor shall the amount of any payment provided for under this Plan be
reduced by any compensation earned by an Eligible Employee as a result of employment by another employer or any retirement benefits received by such Eligible Employee after the date of the Eligible Employee’s termination of employment with the
Company, except for health continuation coverage provided pursuant to Section 4(a)(i)(2). 
 (e) Non-Duplication of Benefits.
Except as otherwise specifically provided for herein, no Eligible Employee is eligible to receive benefits under this Plan more than one time. This Plan is designed to provide certain severance pay and change in control benefits to Eligible
Employees pursuant to the terms and conditions set forth in this Plan. The payments pursuant to this Plan are in addition to, and not in lieu of, any unpaid salary, bonuses or benefits to which an Eligible Employee may be entitled for the period
ending with the Eligible Employee’s Covered Termination. 
  

 8 

 SECTION 6. TIME OF PAYMENT AND FORM
OF BENEFITS. 
 (a) General Rules. The Plan Administrator reserves the right to determine whether
cash severance benefits under the Plan pursuant to Section 4(a)(i), if any, shall be paid in a single lump sum or in installments, or in any other form, and to choose the timing of such payments. In no event shall payment of any benefit
pursuant to Section 4(a)(i) be made prior to the Eligible Employee’s termination date or prior to the effective date of the release described in Section 5(a). 
 (b) Application of Section 409A. In the event that (i) cash severance benefit provided under Section 4(a)(i)(1), (ii) the
health continuation coverage provided under Section 4(a)(i)(2), or (iii) the outplacement benefit provided under Section 4(a)(i)(3), fails to satisfy the distribution requirement of Section 409A(a)(2)(A) of the Code as a result
of the application of Section 409A(a)(2)(B)(i) of the Code, the payment of such benefit shall be accelerated to the minimum extent necessary so that the benefit is not subject to the provisions of Section 409A(a)(1) of the Code. (The
payment schedule as revised after the application of the preceding sentence shall be referred to as the “Revised Payment Schedule.”) However, in the event the payment of benefits pursuant to the Revised Payment Schedule would
be subject to Section 409A(a)(1) of the Code, the payment of such benefits shall not be paid pursuant to the original payment schedule or Revised Payment Schedule and instead the payment of such benefits shall be delayed to the minimum extent
necessary so that such benefits are not subject to the provisions of Section 409A(a)(1) of the Code. The Plan Administrator may attach conditions to or adjust the amounts paid pursuant to this Section 6(b) to preserve, as closely as
possible, the economic consequences that would have applied in the absence of this Section 6(b); provided, however, that no such condition shall result in the payments being subject to Section 409A(a)(1) of the Code. Payments
pursuant to Section 4(a)(i) shall be paid, if at all, no later than five years after the consummation of the Change in Control. No Eligible Employee shall have the right to receive payments pursuant to Section 4(a)(i) more than five years
after the consummation of the Change in Control. It is the intention that payments hereunder shall be paid pursuant to Treasury Regulation Section 1.409A-3(i)(5)(iv)(A). The Plan Administrator should interpret this Plan in compliance with
Section 409A of the Code. 
 (c) Tax Withholding. All such payments under the Plan will be subject to applicable withholding for
federal, state and local income and employment taxes. 
 (d) Indebtedness of Eligible Employees. If an Eligible Employee is indebted
to the Company on the effective date of his or her Covered Termination, the Plan Administrator reserves the right to offset any severance payments under the Plan by the amount of such indebtedness. 
 SECTION 7. REEMPLOYMENT. 
 In the event
of an Eligible Employee’s reemployment by the Company during the period of time in respect of which severance benefits pursuant to Sections 4(a)(i)(1), 4(a)(i)(2), and 4(a)(i)(3) have been paid, the Plan Administrator, in its sole and absolute
discretion, may require such Eligible Employee to repay to the Company all or a portion of such severance benefits as a condition of reemployment. 
  

 9 

 SECTION 8. RIGHT TO INTERPRET PLAN;
AMENDMENT AND TERMINATION. 
 (a) Exclusive Discretion. The Plan Administrator shall
have the exclusive discretion and authority to establish rules, forms, and procedures for the administration of the Plan, and to construe and interpret the Plan and to decide any and all questions of fact, interpretation, definition, computation or
administration arising in connection with the operation of the Plan, including, but not limited to, the eligibility to participate in the Plan and amount of benefits paid under the Plan. The rules, interpretations, computations and other actions of
the Plan Administrator shall be binding and conclusive on all persons. 
 (b) Amendment or Termination. The Company reserves the right
to amend or terminate this Plan or the benefits provided hereunder at any time; provided, however, that no such amendment or termination shall occur following a Change in Control or a Covered Termination as to any Eligible Employee who would
be adversely affected by such amendment or termination unless such Eligible Employee consents in writing to such amendment or termination. Any action amending or terminating the Plan shall be in writing and executed by the Plan Administrator.

 SECTION 9. NO IMPLIED EMPLOYMENT CONTRACT. 
 The Plan shall not be deemed (i) to give any employee or other person any right to be retained in the employ of the Company, or (ii) to
interfere with the right of the Company to discharge any employee or other person at any time, with or without cause, which right is hereby reserved. 
 SECTION 10. LEGAL CONSTRUCTION. 
 This Plan is intended to be governed by and shall be
construed in accordance with ERISA and, to the extent not preempted by ERISA, the laws of the State of California. 
 SECTION 11. CLAIMS,
INQUIRIES AND APPEALS. 
 (a) Applications for Benefits and Inquiries. Any application
for benefits, inquiries about the Plan or inquiries about present or future rights under the Plan must be submitted to the Plan Administrator in writing by an applicant (or his or her authorized representative). The Plan Administrator is set forth
in Section 13(d). 
 (b) Denial of Claims. In the event that any application for benefits is denied in whole or in part, the Plan
Administrator must provide the applicant with written or electronic notice of the denial of the application, and of the applicant’s right to review the denial. Any electronic notice will comply with the regulations of the U.S. Department of
Labor. The notice of denial will be set forth in a manner designed to be understood by the applicant and will include the following: 
 (i)
the specific reason or reasons for the denial; 
 (ii) references to the specific Plan provisions upon which the denial is based;

  

 10 

 (iii) a description of any additional information or material that the Plan Administrator needs to
complete the review and an explanation of why such information or material is necessary; and 
 (iv) an explanation of the Plan’s
review procedures and the time limits applicable to such procedures, including a statement of the applicant’s right to bring a civil action under Section 502(a) of ERISA following a denial on review of the claim, as described in
Section 11(d) below. 
 This notice of denial will be given to the applicant within ninety (90) days after the Plan Administrator
receives the application, unless special circumstances require an extension of time, in which case, the Plan Administrator has up to an additional ninety (90) days for processing the application. If an extension of time for processing is
required, written notice of the extension will be furnished to the applicant before the end of the initial ninety (90) day period. 
 This notice of extension will describe the special circumstances necessitating the additional time and the date by which the Plan Administrator is to render its decision on the application. 
 (c) Request for a Review. Any person (or that person’s authorized representative) for whom an application for benefits is denied, in
whole or in part, may appeal the denial by submitting a request for a review to the Plan Administrator within sixty (60) days after the application is denied. A request for a review shall be in writing and shall be addressed to: 
 Anesiva, Inc. 
 Attn: Chief Executive Officer

 400 Oyster Point Boulevard, Suite #502 
 South San Francisco, CA 94080 
 A request for review must set forth all of the grounds on which it is based, all facts in support
of the request and any other matters that the applicant feels are pertinent. The applicant (or his or her representative) shall have the opportunity to submit (or the Plan Administrator may require the applicant to submit) written comments,
documents, records, and other information relating to his or her claim. The applicant (or his or her representative) shall be provided, upon request and free of charge, reasonable access to, and copies of, all documents, records and other
information relevant to his or her claim. The review shall take into account all comments, documents, records and other information submitted by the applicant (or his or her representative) relating to the claim, without regard to whether such
information was submitted or considered in the initial benefit determination. 
 (d) Decision on Review. The Plan Administrator
will act on each request for review within sixty (60) days after receipt of the request, unless special circumstances require an extension of time (not to exceed an additional sixty (60) days), for processing the request for a review. If
an extension for review is required, written notice of the extension will be furnished to the applicant within the initial sixty (60) day period. This notice of extension will describe the special circumstances necessitating the additional time
and the date by which the Plan Administrator is to render its decision on the review. The Plan Administrator will give prompt, 

  

 11 

 
written or electronic notice of its decision to the applicant. Any electronic notice will comply with the regulations of the U.S. Department of Labor. In the
event that the Plan Administrator confirms the denial of the application for benefits in whole or in part, the notice will set forth, in a manner calculated to be understood by the applicant, the following: 
 (i) the specific reason or reasons for the denial; 
 (ii) references to the specific Plan provisions upon which the denial is based; 
 (iii) a
statement that the applicant is entitled to receive, upon request and free of charge, reasonable access to, and copies of, all documents, records and other information relevant to his or her claim; and 
 (iv) a statement of the applicant’s right to bring a civil action under Section 502(a) of ERISA. 
 (e) Rules and Procedures. The Plan Administrator will establish rules and procedures, consistent with the Plan and with ERISA, as necessary and
appropriate in carrying out its responsibilities in reviewing benefit claims. The Plan Administrator may require an applicant who wishes to submit additional information in connection with an appeal from the denial of benefits to do so at the
applicant’s own expense. 
 (f) Exhaustion of Remedies. No legal action for benefits under the Plan may be brought until the
applicant (i) has submitted a written application for benefits in accordance with the procedures described by Section 11(a) above, (ii) has been notified by the Plan Administrator that the application is denied, (iii) has filed a
written request for a review of the application in accordance with the appeal procedure described in Section 11(c) above, and (iv) has been notified that the Plan Administrator has denied the appeal. Notwithstanding the foregoing, if the
Plan Administrator does not respond to an applicant’s claim or appeal within the relevant time limits specified in this Section 11, the applicant may bring legal action for benefits under the Plan pursuant to Section 502(a) of ERISA.

 SECTION 12. BASIS OF PAYMENTS TO AND FROM
PLAN. 
 The Plan shall be unfunded, and all benefits hereunder shall be paid only from the general assets of the Company.

 SECTION 13. OTHER PLAN INFORMATION. 
 (a) Employer and Plan Identification Numbers. The Employer Identification Number assigned to the Company (which is the “Plan Sponsor” as
that term is used in ERISA) by the Internal Revenue Service is 77-0503399. The Plan Number assigned to the Plan by the Plan Sponsor pursuant to the instructions of the Internal Revenue Service is 511. 
 (b) Ending Date for Plan’s Fiscal Year. The date of the end of the fiscal year for the purpose of maintaining the Plan’s records is
December 31. 
  

 12 

 (c) Agent for the Service of Legal Process. The agent for the service of legal process with
respect to the Plan is: 
 Anesiva, Inc. 
 Attn: Chief Executive Officer 
 400 Oyster Point Boulevard, Suite #502 
 South San Francisco, CA 94080 
 (d) Plan Sponsor and Administrator. The
“Plan Sponsor” and the “Plan Administrator” of the Plan is: 
 Anesiva, Inc. 
 Attn: Chief Executive Officer 
 400 Oyster Point
Boulevard, Suite #502 
 San Francisco, CA 94080 
 The Plan Sponsor’s and Plan Administrator’s telephone number is (650) 624-9600. The Plan Administrator is the named fiduciary charged with the responsibility for administering the Plan. 
 SECTION 14. STATEMENT OF ERISA RIGHTS. 
 Participants in this Plan (which is a welfare benefit plan sponsored by Anesiva, Inc.) are entitled to certain rights and protections under ERISA. If you are an Eligible Employee, you are considered a participant in
the Plan for the purposes of this Section 14 and, under ERISA, you are entitled to: 
 (a) Receive Information About Your Plan and
Benefits 
 (i) Examine, without charge, at the Plan Administrator’s office and at other specified locations, such as
worksites, all documents governing the Plan and a copy of the latest annual report (Form 5500 Series), if applicable, filed by the Plan with the U.S. Department of Labor and available at the Public Disclosure Room of the Employee Benefits Security
Administration; 
 (ii) Obtain, upon written request to the Plan Administrator, copies of documents governing the operation of the
Plan and copies of the latest annual report (Form 5500 Series), if applicable, and an updated (as necessary) Summary Plan Description. The Administrator may make a reasonable charge for the copies; and 
 (iii) Receive a summary of the Plan’s annual financial report, if applicable. The Plan Administrator is required by law to furnish each
participant with a copy of this summary annual report. 
 (b) Prudent Actions By Plan Fiduciaries. In addition to creating rights for
Plan participants, ERISA imposes duties upon the people who are responsible for the operation of the employee benefit plan. The people who operate the Plan, called “fiduciaries” of the Plan, have a duty to do so prudently and in the
interest of you and other Plan participants and beneficiaries. No one, including your employer, your union or any other person, may fire you or otherwise discriminate against you in any way to prevent you from obtaining a Plan benefit or exercising
your rights under ERISA. 
  

 13 

 (c) Enforce Your Rights. 
 (i) If your claim for a Plan benefit is denied or ignored, in whole or in part, you have a right to know why this was done, to obtain copies of
documents relating to the decision without charge, and to appeal any denial, all within certain time schedules. 
 (ii) Under ERISA,
there are steps you can take to enforce the above rights. For instance, if you request a copy of Plan documents or the latest annual report from the Plan, if applicable, and do not receive them within 30 days, you may file suit in a Federal court.
In such a case, the court may require the Plan Administrator to provide the materials and pay you up to $110 a day until you receive the materials, unless the materials were not sent because of reasons beyond the control of the Plan Administrator.

 (iii) If you have a claim for benefits which is denied or ignored, in whole or in part, you may file suit in a state or Federal
court. 
 (iv) If you are discriminated against for asserting your rights, you may seek assistance from the U.S. Department of Labor,
or you may file suit in a Federal court. The court will decide who should pay court costs and legal fees. If you are successful, the court may order the person you have sued to pay these costs and fees. If you lose, the court may order you to pay
these costs and fees, for example, if it finds your claim is frivolous. 
 (d) Assistance With Your Questions. If you have any
questions about the Plan, you should contact the Plan Administrator. If you have any questions about this statement or about your rights under ERISA, or if you need assistance in obtaining documents from the Plan Administrator, you should contact
the nearest office of the Employee Benefits Security Administration, U.S. Department of Labor, listed in your telephone directory or the Division of Technical Assistance and Inquiries, Employee Benefits Security Administration, U.S. Department of
Labor, 200 Constitution Avenue N.W., Washington, D.C. 20210. You may also obtain certain publications about your rights and responsibilities under ERISA by calling the publications hotline of the Employee Benefits Security Administration.

 SECTION 15. GENERAL PROVISIONS. 
 (a) Notices. Any notice, demand or request required or permitted to be given by either the Company or an Eligible Employee pursuant to the terms of this Plan shall be in writing and shall be deemed given when
delivered personally or deposited in the U.S. mail, First Class with postage prepaid, and addressed to the parties, in the case of the Company, at the address set forth in Section 11(a) and, in the case of an Eligible Employee, at the address
as set forth in the Company’s employment file maintained for the Eligible Employee as previously furnished by the Eligible Employee or such other address as a party may request by notifying the other in writing. 
 (b) Transfer and Assignment. The rights and obligations of an Eligible Employee under this Plan may not be transferred or assigned without the
prior written consent of the 

  

 14 

 
Company. This Plan shall be binding upon any surviving entity resulting from a Change in Control and upon any other person who is a successor by merger,
acquisition, consolidation or otherwise to the business formerly carried on by the Company without regard to whether or not such person or entity actively assumes the obligations hereunder. 
 (c) Waiver. Any Party’s failure to enforce any provision or provisions of this Plan shall not in any way be construed as a waiver of any such
provision or provisions, nor prevent any Party from thereafter enforcing each and every other provision of this Plan. The rights granted the Parties herein are cumulative and shall not constitute a waiver of any Party’s right to assert all
other legal remedies available to it under the circumstances. 
 (d) Severability. Should any provision of this Plan be declared or
determined to be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired. 
 (e) Section Headings. Section headings in this Plan are included for convenience of reference only and shall not be considered part of this Plan for any other purpose. 
 SECTION 16. EXECUTION. 
 To record the
adoption of the Plan as set forth herein, Anesiva, Inc. has caused its duly authorized officer to execute the same as of July 30, 2009. 
  

			
	ANESIVA, INC.
		
	 By:
	 	 /s/ Michael L. Kranda

	 Name:
	 	 Michael L. Kranda

	 Title:
	 	 Chief Executive Officer

  

 15 

 For Employees Age 40 or Older 
 Individual Termination 
 EXHIBIT A 
 RELEASE AGREEMENT 
 I understand and
agree completely to the terms set forth in the Anesiva, Inc. Executive Change in Control and Severance Benefit Plan (the “Plan”). 
 I understand that this Release, together with the Plan, constitutes the complete, final and exclusive embodiment of the entire agreement between the Company and me with regard to the subject matter hereof. I am not
relying on any promise or representation by the Company that is not expressly stated therein. Certain capitalized terms used in this Release are defined in the Plan. 
 I hereby confirm my obligations under the Company’s proprietary information and inventions agreement. 
 Except as otherwise set forth in this Release, I hereby generally and completely release Anesiva, Inc. and its current and former directors, officers, employees, shareholders, partners, agents, attorneys, predecessors, successors, parent
and subsidiary entities, insurers, affiliates, and assigns from any and all claims, liabilities and obligations, both known and unknown, that arise out of or are in any way related to events, acts, conduct, or omissions occurring prior to my signing
this Agreement. This general release includes, but is not limited to: (1) all claims arising out of or in any way related to my employment with the Company, or the termination of that employment; (2) all claims related to my compensation
or benefits from the Company, including salary, bonuses, commissions, vacation pay, expense reimbursements, severance pay, fringe benefits, stock, stock options, or any other ownership interests in the Company; (3) all claims for breach of
contract, wrongful termination, and breach of the implied covenant of good faith and fair dealing; (4) all tort claims, including claims for fraud, defamation, emotional distress, and discharge in violation of public policy; and (5) all
federal, state, and local statutory claims, including claims for discrimination, harassment, retaliation, attorneys’ fees, or other claims arising under the federal Civil Rights Act of 1964 (as amended), the federal Americans with Disabilities
Act of 1990, the federal Age Discrimination in Employment Act of 1967 (as amended) (“ADEA”), and the California Fair Employment and Housing Act (as amended); provided, however, that nothing in this paragraph shall be
construed in any way to release the Company from its obligation to indemnify me pursuant to agreement or applicable law. 
 I acknowledge
that I am knowingly and voluntarily waiving and releasing any rights I may have under the ADEA (“ADEA Waiver”). I also acknowledge that the consideration given for the ADEA Waiver is in addition to anything of value to which
I was already entitled. I further acknowledge that I have been advised by this writing, as required by the ADEA, that: (a)

  

 1 

 For Employees Age 40 or Older 
 Individual Termination 
 my ADEA Waiver does not apply to any rights or claims that arise after the date I sign this
Release; (b) I should consult with an attorney prior to signing this Release; (c) I have twenty-one (21) days to consider this Release (although I may choose to voluntarily sign it sooner); (d) I have seven (7) days
following the date I sign this Release to revoke the ADEA Waiver; and (e) the ADEA Waiver will not be effective until the date upon which the revocation period has expired unexercised, which will be the eighth day after I sign this Release
(“Effective Date”). Nevertheless, my general release of claims, except for the ADEA Waiver, is effective immediately, and not revocable. 
 I acknowledge that I have read and understand Section 1542 of the California Civil Code which reads as follows: “A general release does not extend to claims which the creditor does not know or suspect to
exist in his or her favor at the time of executing the release, which if known by him or her must have materially affected his or her settlement with the debtor.” I hereby expressly waive and relinquish all rights and benefits under that
section and any law of any jurisdiction of similar effect with respect to my release of any claims hereunder. 
 I acknowledge that to become
effective, I must sign and return this Release to the Company so that it is received not later than twenty-one (21) days following the date it is provided to me. 
  

			
	EMPLOYEE
		
	 Name:
	 	  

	 Date:
	 	  

  

 2 

 For Employees Age 40 or Older 
 Group Termination 
 EXHIBIT B 
 RELEASE AGREEMENT 
 I understand and agree completely to the terms set forth
in the Anesiva, Inc. Executive Change in Control and Severance Benefit Plan (the “Plan”). 
 I understand
that this Release, together with the Plan, constitutes the complete, final and exclusive embodiment of the entire agreement between the Company and me with regard to the subject matter hereof. I am not relying on any promise or representation by the
Company that is not expressly stated therein. Certain capitalized terms used in this Release are defined in the Plan. 
 I hereby confirm my
obligations under the Company’s proprietary information and inventions agreement. 
 Except as otherwise set forth in this Release, I
hereby generally and completely release Anesiva, Inc. and its current and former directors, officers, employees, shareholders, partners, agents, attorneys, predecessors, successors, parent and subsidiary entities, insurers, affiliates, and assigns
from any and all claims, liabilities and obligations, both known and unknown, that arise out of or are in any way related to events, acts, conduct, or omissions occurring prior to my signing this Agreement. This general release includes, but is not
limited to: (1) all claims arising out of or in any way related to my employment with the Company, or the termination of that employment; (2) all claims related to my compensation or benefits from the Company, including salary, bonuses,
commissions, vacation pay, expense reimbursements, severance pay, fringe benefits, stock, stock options, or any other ownership interests in the Company; (3) all claims for breach of contract, wrongful termination, and breach of the implied
covenant of good faith and fair dealing; (4) all tort claims, including claims for fraud, defamation, emotional distress, and discharge in violation of public policy; and (5) all federal, state, and local statutory claims, including claims
for discrimination, harassment, retaliation, attorneys’ fees, or other claims arising under the federal Civil Rights Act of 1964 (as amended), the federal Americans with Disabilities Act of 1990, the federal Age Discrimination in Employment Act
of 1967 (as amended) (“ADEA”), and the California Fair Employment and Housing Act (as amended); provided, however, that nothing in this paragraph shall be construed in any way to release the Company from its obligation
to indemnify me pursuant to agreement or applicable law. 
 I acknowledge that I am knowingly and voluntarily waiving and releasing any
rights I may have under the ADEA (“ADEA Waiver”). I also acknowledge that the consideration given for the ADEA Waiver is in addition to anything of value to which I was already entitled. I further acknowledge that I have been
advised by this writing, as required by the ADEA, that: (a) my ADEA Waiver does not apply to any rights or claims that arise after the date I sign this Release; (b) I should consult with an attorney prior to signing this Release;
(c) I have forty-five (45) days to consider this Release (although I may choose to voluntarily sign it sooner); (d) I have seven (7) days following the date I sign this Release to revoke the ADEA Waiver; and (e) the ADEA
Waiver will not be effective until the date upon which the revocation period has expired unexercised, which will be the eighth day after I sign this Release (“Effective Date”). 

  

 1 

 For Employees Age 40 or Older 
 Group Termination 
 Nevertheless, my general release of claims, except for the ADEA Waiver, is effective
immediately, and not revocable.
 I have received with this Release a detailed list of the job titles and ages of all employees who were
terminated in this group termination and the ages of all employees of the Company in the same job classification or organizational unit who were not terminated. 
 I acknowledge that I have read and understand Section 1542 of the California Civil Code which reads as follows: “A general release does not extend to claims which the creditor does not know or suspect to
exist in his or her favor at the time of executing the release, which if known by him or her must have materially affected his or her settlement with the debtor.” I hereby expressly waive and relinquish all rights and benefits under that
section and any law of any jurisdiction of similar effect with respect to my release of any claims hereunder. 
 I acknowledge that to become
effective, I must sign and return this Release to the Company so that it is received not later than forty-five (45) days following the date it is provided to me. 
  

			
	EMPLOYEE
		
	 Name:
	 	  

	 Date:
	 	  

  

 2 

 EXHIBIT C 
 RELEASE AGREEMENT 
 I understand and agree completely to the terms set forth
in the Anesiva, Inc. Executive Change in Control and Severance Benefit Plan (the “Plan”). 
 I understand
that this Release, together with the Plan, constitutes the complete, final and exclusive embodiment of the entire agreement between the Company and me with regard to the subject matter hereof. I am not relying on any promise or representation by the
Company that is not expressly stated therein. Certain capitalized terms used in this Release are defined in the Plan. 
 I hereby confirm my
obligations under the Company’s proprietary information and inventions agreement. 
 Except as otherwise set forth in this Release, I
hereby generally and completely release Anesiva, Inc. and its current and former directors, officers, employees, shareholders, partners, agents, attorneys, predecessors, successors, parent and subsidiary entities, insurers, affiliates, and assigns
from any and all claims, liabilities and obligations, both known and unknown, that arise out of or are in any way related to events, acts, conduct, or omissions occurring prior to my signing this Agreement. This general release includes, but is not
limited to: (1) all claims arising out of or in any way related to my employment with the Company, or the termination of that employment; (2) all claims related to my compensation or benefits from the Company, including salary, bonuses,
commissions, vacation pay, expense reimbursements, severance pay, fringe benefits, stock, stock options, or any other ownership interests in the Company; (3) all claims for breach of contract, wrongful termination, and breach of the implied
covenant of good faith and fair dealing; (4) all tort claims, including claims for fraud, defamation, emotional distress, and discharge in violation of public policy; and (5) all federal, state, and local statutory claims, including claims
for discrimination, harassment, retaliation, attorneys’ fees, or other claims arising under the federal Civil Rights Act of 1964 (as amended), the federal Americans with Disabilities Act of 1990, and the California Fair Employment and Housing
Act (as amended); provided, however, that nothing in this paragraph shall be construed in any way to release the Company from its obligation to indemnify me pursuant to agreement or applicable law. 
 I acknowledge that I have read and understand Section 1542 of the California Civil Code which reads as follows: “A general release does not
extend to claims which the creditor does not know or suspect to exist in his or her favor at the time of executing the release, which if known by him or her must have materially affected his or her settlement with the debtor.” I hereby
expressly waive and relinquish all rights and benefits under that section and any law of any jurisdiction of similar effect with respect to my release of any claims hereunder. 
  

 1 

 I acknowledge that to become effective, I must sign and return this Release to the Company so that it is
received not later than fourteen (14) days following the date it is provided to me. 
  

			
	EMPLOYEE
		
	 Name:
	 	  

	 Date:
	 	  

  

 2

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