UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549



                                    FORM 8-K
                                 CURRENT REPORT

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



                Date of Report (Date of earliest event reported):
                                FEBRUARY 13, 2004


                         AVANT IMMUNOTHERAPEUTICS, INC.
               (Exact name of registrant as specified in charter)


            DELAWARE                  0-15006                    13-3191702
(State or other jurisdiction    (Commission file number)     (IRS employer
        of incorporation)                                    identification no.)


                                119 FOURTH AVENUE
                        NEEDHAM, MASSACHUSETTS 02494-2725
               (Address of principal executive offices) (Zip code)


               Registrant's telephone number, including area code:
                                 (781) 433-0771



ITEM 5. OTHER EVENTS.

On February 13, 2004, AVANT Immunotherapeutics, Inc. announced a public offering
of 8,965,000 shares of its common stock to institutional investors at a price of
$2.75 per share for gross proceeds of approximately $25 million. The shares were
offered directly to selected institutional investors under a shelf registration
statement filed by AVANT in November 2003. The transactions contemplated were
closed and the stock was issued to investors on February 19, 2004 and
February 20, 2004.

AVANT expects to receive net proceeds from the financing of approximately
$23.1 million after deducting placement agents' fees and estimated expenses
associated with the offering. Roth Capital Partners, LLC and William Blair &
Company, L.L.C. served as co-exclusive placement agents for the transaction.

A copy of the Placement Agent Agreement between AVANT, Roth Capital and William
Blair, dated as of February 13, 2004, the related Pricing Agreement and the
press release related to the offering are attached as Exhibits 1.1, 1.2 and 99.1
to this current report on Form 8-K and are incorporated herein by reference.


ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

          (c)  Exhibits:

               1.1  Placement Agency Agreement, dated as of February 13, 2004,
                    by and between AVANT and Roth Capital Partners, LLC and
                    William Blair & Company, L.L.C.

               1.2  Pricing Agreement, dated as of February 13, 2004, by and
                    between AVANT and Roth Capital Partners, LLC and William
                    Blair & Company, L.L.C.

               99.1 Press Release issued February 13, 2004 by AVANT



                                   SIGNATURES

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


                                            AVANT IMMUNOTHERAPEUTICS, INC.



Date: February 23, 2004                     By: /s/ Avery W. Catlin
                                               ---------------------------------
                                               Avery W. Catlin
                                               Senior Vice President and
                                               Chief Financial Officer



                                  EXHIBIT INDEX

EXHIBIT NO. DESCRIPTION - ----------- ----------- 1.1 Placement Agency Agreement, dated as of February 13, 2004, by and between AVANT and Roth Capital Partners, LLC and William Blair & Company, L.L.C. 1.2 Pricing Agreement, dated as of February 13, 2004, by and between AVANT and Roth Capital Partners, LLC and William Blair & Company, L.L.C. 99.1 Press Release issued February 13, 2004 by AVANT


                                                                     EXHIBIT 1.1

                           PLACEMENT AGENCY AGREEMENT

February 13, 2004
Roth Capital Partners, LLC
24 Corporate Plaza
Newport Beach, CA 92660

Ladies and Gentlemen:

        INTRODUCTORY. AVANT Immunotherapeutics, Inc., a Delaware corporation
(the "Company"), proposes, subject to the terms and conditions herein, to issue
and sell an aggregate of up to 8,965,000 shares (the "Shares" or "Securities")
of its common stock, $0.001 par value per share (the "Common Stock"), directly
to various institutional investors (collectively, the "Investors").

        The Company hereby confirms its agreement with the Placement Agents as
follows:

SECTION 1.     AGREEMENT TO ACT AS PLACEMENT AGENTS.

        (a)    On the basis of the representations, warranties and agreements of
the Company herein contained, and subject to all the terms and conditions of
this Agreement between the Company, Roth Capital Partners, LLC ("Roth Capital")
and William Blair & Company, L.L.C., ("William Blair"), Roth Capital and William
Blair shall be the Company's exclusive placement agents (in such capacity, the
"Placement Agents"), on a commercially reasonable best efforts basis, in
connection with the issuance and sale by the Company of the Securities in a
proposed takedown from shelf Registration Statement No. 333-109583, or other
registration statement(s) filed or to be filed to accomplish the takedown
(collectively the "Registration Statement"), with the terms of the offering to
be subject to market conditions and negotiations between the Company, the
Placement Agents and the prospective Investors (such takedown shall be referred
to herein as the "Offering"). As compensation for services rendered, and
provided that any of the Securities are sold to Investors in the Offering, on
the Closing Date (as defined below) of the Offering, the Company shall pay to
the Placement Agents an amount negotiated in connection with the Offering. In
connection with the Offering, the parties will enter into a pricing agreement in
the form attached hereto as EXHIBIT A ("Pricing Agreement"), which shall be
deemed a part of this Agreement and which shall set forth the terms of the
Offering, including the compensation to be paid to the Placement Agents for
services rendered in connection therewith.

        This Agreement shall not give rise to any commitment by the Placement
Agents to purchase any of the Securities, and the Placement Agents shall have no
authority to bind the Company. The Placement Agents shall act on a commercially
reasonable best efforts basis and does not guarantee that it will be able to
raise new capital in the prospective Offering. The Company shall be under no
obligation to agree to any of the proposed terms of the Offering. The Company
acknowledges that any advice given to the Company is solely for benefit and use
of the Board of Directors of the Company and may not be used, reproduced,
disseminated, quoted or referred to, without the Placement Agents' prior written
consent. The Placement Agents may retain other brokers or dealers to act as
sub-agents on their behalf in connection with the Offering.

        The term of the Placement Agents' exclusive engagement will be 15 days;
however, either party may terminate the engagement at any time upon 5 days
written notice to the other party. Upon termination, the Placement Agents will
be entitled to collect all fees earned and expenses incurred through the date of
termination, and the amounts described in the next sentence, if applicable. If
the Placement



Agents' exclusive engagement is terminated prior to the expiration of the 15 day
period beginning on the date hereof (the "Exclusive Term") for reasons other
than termination of this engagement by the Placement Agents, any person to whom
Placement Agents introduced the Company, or with which we have discussions or
negotiations about an investment in the Company during the term of this
Agreement, purchases securities from the Company (other than through an
underwritten public offering) during the six months following termination of
this Agreement, the Company agrees to pay to Placement Agents upon the closing
of such transaction a cash fee in the amount that would otherwise have been
payable to the Placement Agents had such transaction occurred during the term.
Nothing in this Agreement shall be construed to limit the ability of the
Placement Agents or their affiliates to pursue, investigate, analyze, invest in,
or engage in investment banking, financial advisory or any other business
relationship with entities or persons other than the Company.

SECTION 2.     REPRESENTATIONS, WARRANTIES AND AGREEMENTS OF THE COMPANY.

        The Company hereby represents, warrants and covenants to the Placement
Agents as of the date hereof, and as of the Closing Date of the Offering, as
follows:

        (a)    SECURITIES LAW FILINGS. The Company meets the requirements for
use of Form S-3 under the Securities Act of 1933, as amended (the "Act"), and
has filed with the Securities and Exchange Commission (the "Commission") the
Registration Statement on such Form S-3 (Registration File No. 333-109583),
which became effective November 14, 2003, for the registration under the Act of
the Securities. Such registration statement meets the requirements set forth in
Rule 415(a)(1)(x) under the Act and complies in all other material respects with
said Rule. The Company will file with the Commission pursuant to Rule 424(b)
under the Act a supplement to the form of prospectus included in such
registration statement relating to a placement of the Securities and the plan of
distribution thereof and has advised the Placement Agents of all further
information (financial and other) with respect to the Company to be set forth
therein. Such registration statement, including the exhibits thereto, as amended
at the date of this Agreement, is hereinafter called the "Registration
Statement"; such prospectus in the form in which it appears in the Registration
Statement is hereinafter called the "Base Prospectus"; and the supplemented form
of prospectus, in the form in which it will be filed with the Commission
pursuant to Rule 424(b) (including the Base Prospectus as so supplemented) is
hereinafter called a "Prospectus Supplement." Any reference herein to the
Registration Statement, the Base Prospectus or the Prospectus Supplement shall
be deemed to refer to and include the documents incorporated by reference
therein (the "Incorporated Documents") pursuant to Item 12 of Form S-3 which
were filed under the Securities Exchange Act of 1934, as amended (the "Exchange
Act"), on or before the date of this Agreement, or the issue date of the Base
Prospectus or Prospectus Supplement, as the case may be; and any reference
herein to the terms "amend," "amendment" or "supplement" with respect to the
Registration Statement, the Base Prospectus or the Prospectus Supplement shall
be deemed to refer to and include the filing of any document under the Exchange
Act after the date of this Agreement, or the issue date of the Base Prospectus
or the Prospectus Supplement, as the case may be, deemed to be incorporated
therein by reference. All references in this Agreement to financial statements
and schedules and other information which is "contained," "included" or "stated"
in the Registration Statement or the Prospectus Supplement (and all other
references of like import) shall be deemed to mean and include all such
financial statements and schedules and other information which is or is deemed
to be incorporated by reference in the Registration Statement or the Prospectus
Supplement, as the case may be.

        (b)    NO STOP ORDER. No stop order suspending the effectiveness of the
Registration Statement or the use of the Base Prospectus or the Prospectus
Supplement has been issued, and no proceeding for any such purpose is pending or
has been initiated or, to the Company's knowledge, is threatened by the
Commission.

                                        2


        (c)    COMPLIANCE WITH APPLICABLE REGULATIONS. The Registration
Statement (and any further documents to be filed with the Commission) contains
all exhibits and schedules as required by the Act. Each of the Registration
Statement and any post-effective amendment thereto, at the time it became
effective, complied in all material respects with the Act and the Exchange Act
and the applicable rules and regulations of the Commission thereunder and did
not and, as amended or supplemented, if applicable, will not, contain any untrue
statement of a material fact or omit to state a material fact required to be
stated therein or necessary to make the statements therein not misleading. Each
of the Base Prospectus and the Prospectus Supplement, as of its respective date,
complied (or in the case of the Prospectus Supplement will comply) in all
material respects with the Act and the Exchange Act and the applicable rules and
regulations of the Commission thereunder. Each of the Base Prospectus and the
Prospectus Supplement, as amended or supplemented, did not (or in the case of
the Prospectus Supplement will not) contain as of the effective date thereof any
untrue statement of a material fact or omit to state a material fact necessary
in order to make the statements therein, in light of the circumstances under
which they were made, not misleading. The Incorporated Documents, when they were
filed with the Commission, conformed in all material respects to the
requirements of the Exchange Act and the applicable rules and regulations of the
Commission thereunder, and none of such documents, when they were filed with the
Commission, contained any untrue statement of a material fact or omitted to
state a material fact necessary to make the statements therein not misleading;
and any further documents so filed and incorporated by reference in the Base
Prospectus or Prospectus Supplement, when such documents are filed with the
Commission, will conform in all material respects to the requirements of the
Exchange Act and the applicable rules and regulations of the Commission
thereunder, as applicable, and will not contain any untrue statement of a
material fact or omit to state a material fact necessary to make the statements
therein not misleading. Notwithstanding the foregoing, the Company makes no
representations or warranties as to the information contained in or omitted from
the Prospectus Supplement or any amendment thereof or supplement thereto in
reliance upon and in conformity with information furnished in writing to the
Company by or on behalf of the Placement Agents specifically for use in the
Registration Statement or the Prospectus Supplement. No post-effective amendment
to the Registration Statement reflecting any facts or events arising after the
effective date thereof which represent, individually or in the aggregate, a
fundamental change in the information set forth therein is required to be filed
with the Commission.

        (d)    REPORTS AND DOCUMENTS, ETC. There are no documents required to be
filed with the Commission in connection with the transaction contemplated hereby
that (x) have not been filed as required pursuant to the Act or (y) will not be
filed within the requisite time period. There are no contracts or other
documents required to be described in the Prospectus Supplement, or to be filed
as exhibits or schedules to the Registration Statement, which have not been
described or filed as required.

        (e)    OFFERING MATERIALS FURNISHED TO THE PLACEMENT AGENTS. The Company
has delivered, or will as promptly as practicable deliver, to the Placement
Agents complete conformed copies of the Registration Statement and of each
consent and certificate of experts filed as a part thereof, and conformed copies
of the Registration Statement (without exhibits) and the Base Prospectus and the
Prospectus Supplement, as amended or supplemented, in such quantities and at
such places as the Placement Agents reasonably request.

        (f)    DISTRIBUTION OF OFFERING MATERIAL. The Company has not
distributed and will not distribute, prior to the completion of the distribution
of the Securities, any offering material in connection with the offering and
sale of the Securities other than the Base Prospectus and the Prospectus
Supplement or the Registration Statement and copies of the documents
incorporated by reference therein. For the avoidance of doubt, any other
material prepared and distributed solely by the Placement Agents is not deemed
to be distributed by the Company for purposes of this paragraph (f).

                                        3


        (g)    THE PLACEMENT AGENCY AGREEMENT. This Agreement has been duly
authorized, executed and delivered by, and is a valid and binding agreement of,
the Company, enforceable against the Company in accordance with its terms,
except as rights to indemnification and contribution hereunder may be limited by
applicable law and except as the enforcement hereof may be limited by
bankruptcy, insolvency, reorganization, moratorium or other similar laws
relating to or affecting the rights and remedies of creditors or by general
equitable principles.

        (h)    AUTHORIZATION OF THE SECURITIES. The Securities have been duly
authorized for issuance and sale, and when issued and delivered by the Company
against payment therefor pursuant to this Agreement, will be validly issued,
fully paid and nonassessable.

        (i)    NO APPLICABLE REGISTRATION OR OTHER SIMILAR RIGHTS. There are no
persons with registration, preemptive or other similar rights to have any
securities (whether equity, debt or any combination thereof) registered or
qualified for sale under the Registration Statement or the Prospectus Supplement
or included in the Offering contemplated by this Agreement, except for such
rights as have been duly waived or satisfied.

        (j)    NO MATERIAL ADVERSE CHANGE OR MATERIAL ADVERSE EFFECT. Except as
disclosed in the Base Prospectus and in any Prospectus Supplement: (i) there has
been no material adverse change or effect, or any development that could
reasonably be expected to result in a material adverse change or effect, in the
financial condition or in the earnings, business or operations, whether or not
arising from transactions in the ordinary course of business, of the Company and
the significant subsidiaries of the Company, as that term is defined in Rule
1-02(w) of Regulation S-X (the "Significant Subsidiaries") taken as a whole (any
such change or effect, where the context so requires, is called a "Material
Adverse Change" or a "Material Adverse Effect"); (ii) the Company and the
Significant Subsidiaries have not incurred any liability or obligation,
indirect, direct or contingent, not in the ordinary course of business nor
entered into any transaction or agreement not in the ordinary course of business
that would reasonably be expected to have a Material Adverse Effect; and (iii)
there has been no dividend or distribution of any kind declared, paid or made by
the Company on any class of capital stock or repurchase or redemption by the
Company of any class of capital stock.

        (k)    INDEPENDENT ACCOUNTANTS. PricewaterhouseCoopers, LLP ("PWC"), who
have expressed their opinion with respect to the financial statements (which
term as used in this Agreement includes the related notes and schedules thereto)
and supporting schedules filed with the Commission as a part of the Registration
Statement and incorporated by reference in the Base Prospectus or Prospectus
Supplement, are independent public or certified public accountants as required
by the Act and the Exchange Act.

        (l)    PREPARATION OF THE FINANCIAL STATEMENTS. The financial statements
filed with the Commission as a part of the Registration Statement or included or
incorporated by reference in the Base Prospectus or Prospectus Supplement
present fairly, in all material respects, the financial position of the Company
and its consolidated subsidiaries as of and at the dates indicated and the
results of their operations and cash flows for the periods specified therein.
The supporting exhibits and schedules included in the Registration Statement, if
any, present fairly, in all material respects, the information required to be
stated therein subject to the normal year-end adjustments which are not expected
to be material in amount. The assumptions used in preparing any pro forma
financial statements provide a reasonable basis for presenting the significant
effects attributable to the transactions or events described therein, the
related pro forma adjustments comply, in all material respects, with Regulation
G under the Exchange Act and give appropriate effect to the assumptions and the
pro forma columns and reconciliations therein reflect the proper application of
the adjustments to the corresponding historical financial statements. Such
financial statements and supporting schedules, if any, have been prepared in
conformity with generally accepted accounting principles as applied in the
United States ("GAAP"), as

                                        4


applicable, applied on a consistent basis throughout the periods involved,
except as may be expressly stated in the related notes thereto and comply in all
material respects with the Act, the Exchange Act and the applicable rules and
regulations of the Commission thereunder. No other financial statements or
supporting schedules or exhibits are required by the Act or the rules and
regulations of the Commission thereunder to be included in the Registration
Statement, Base Prospectus or the Prospectus Supplement.

        (m)    INCORPORATION AND GOOD STANDING. Each of the Company and its
Significant Subsidiaries has been duly organized and is validly existing as a
corporation in good standing under the laws of its jurisdiction of incorporation
with full corporate power and authority to own its properties and other assets
and conduct its business as described in the Prospectus Supplement, and is duly
qualified or licensed to do business as a foreign corporation and is in good
standing under the laws of each jurisdiction which requires such qualification
or license, except where the failure to be so qualified or in good standing
would not have a Material Adverse Effect.

        (n)    CAPITALIZATION AND OTHER CAPITAL STOCK MATTERS. The authorized,
issued and outstanding capital stock of the Company is as set forth in the
Registration Statement and in the Prospectus Supplement (other than for
issuances after the dates thereof, if any, pursuant to employee benefit plans
described in any Prospectus Supplement or upon exercise of outstanding options
or warrants described in any Prospectus Supplement). The Securities conform in
all material respects to the description thereof contained in the Base
Prospectus and the Prospectus Supplement. The outstanding capital stock of the
Company, and the outstanding options, warrants, or convertible securities of the
Company, are as described in the Base Prospectus and Prospectus Supplement, as
of the date such information is presented therein. Since September 30, 2003, the
Company has not issued any securities other than Common Stock of the Company
pursuant to the exercise of previously outstanding warrants and options, the
latter in connection with the Company's employee stock purchase and option plans
(the "Plans") and options granted pursuant to the Plans in the ordinary course
of business consistent with past practice, in each case as disclosed in the Base
Prospectus and the Prospectus Supplement. All the issued and outstanding shares
of the capital stock of the Company and the Significant Subsidiaries have been
duly authorized and validly issued, are fully paid and nonassessable and have
been issued in compliance, in all material respects, with federal and state
securities laws, as applicable. Except as set forth in the Base Prospectus and
the Prospectus Supplement, all of the outstanding warrants or shares of capital
stock of the Significant Subsidiaries are owned, directly or indirectly, by the
Company. None of the outstanding shares of capital stock of the Company or any
Significant Subsidiary were issued in violation of any preemptive rights, rights
of first refusal or other similar rights to subscribe for or purchase
securities. There are no authorized or outstanding options, warrants, preemptive
rights, rights of first refusal or other rights to purchase, or equity or debt
securities convertible into or exchangeable or exercisable for, any capital
stock of the Company or any Significant Subsidiary other than those described in
the Base Prospectus and the Prospectus Supplement and other than options granted
pursuant to the Plans in the ordinary course of business consistent with past
practice. The description of the Company's stock option, stock bonus and other
stock plans or arrangements, and the options, warrants or other rights granted
thereunder, set forth in the Base Prospectus and the Prospectus Supplement
accurately and fairly presents, in all material respects, the information
required by the Act to be shown with respect to such plans, arrangements,
options and rights.

        (o)    STOCK EXCHANGE LISTING. The Common Stock (including any shares of
Common Stock issued in the Offering) is registered under the Exchange Act and is
or will be as of the Closing Date listed on the Nasdaq National Market, and the
Company has taken no action designed to, or likely to have the effect of
terminating the registration of the Common Stock under the Exchange Act or
delisting or suspending from trading the Common Stock from the Nasdaq National
Market, nor has the Company received any notice from the Commission or Nasdaq
indicating information suggesting that the Commission or the Nasdaq National
Market is contemplating terminating or suspending such registration

                                        5


or listing that has not been withdrawn or superceded, except as disclosed in the
Base Prospectus or in any Prospectus Supplement.

        (p)    NO CONSENTS, APPROVALS OR AUTHORIZATIONS REQUIRED. No consent,
approval, authorization, filing with or order of any court or governmental
agency or regulatory body or vote of the Company's shareholders is required in
connection with the performance by the Company of its obligations under this
Agreement or the offering or sale of its Securities hereunder, except such as
have been obtained or made or are contemplated by Section 2(a) to be obtained or
made.

        (q)    NON-CONTRAVENTION OF EXISTING INSTRUMENTS AND AGREEMENTS. Neither
the issue and sale of the Securities nor the performance by the Company of its
obligations under this Agreement nor the fulfillment of the terms hereof will
conflict with, result in a breach or violation of, or the loss of any benefit
under, or give rise to a right of acceleration or any other right, or the
imposition of any lien, charge or encumbrance upon any property or assets of the
Company or any Significant Subsidiary pursuant to: (i) the charter or by-laws of
the Company or any Significant Subsidiary; (ii) the terms of any indenture,
contract, lease, mortgage, deed of trust, note agreement, loan agreement or
other agreement, obligation, condition, covenant or instrument to which the
Company or any Significant Subsidiary is a party or is bound or to which any of
its property is subject except as would not reasonably be expected to have a
Material Adverse Effect; or (iii) any statute, law, rule, regulation, judgment,
order or decree applicable to the Company or any Significant Subsidiary, as the
case may be, of any court, regulatory body, administrative agency, governmental
body, arbitrator or other authority having jurisdiction over the Company or such
Significant Subsidiary, as the case may be, or any of its property.

        (r)    NO DEFAULTS OR VIOLATIONS. None of the Company or the Significant
Subsidiaries is in violation or default of: (i) any provision of its charter or
by-laws; (ii) the terms of any indenture, contract, lease, mortgage, deed of
trust, note agreement, loan agreement or other agreement, obligation, condition,
covenant or instrument to which it is a party or by which it is bound or to
which any of its property is subject; or (iii) any foreign, federal, state or
local statute, law or rule applicable to the Company or Significant Subsidiary,
as the case may be, or any regulation, judgment, order or decree of any court,
governmental body, or agency having jurisdiction over the Company or Significant
Subsidiary, as the case may be, or any of its property, as applicable, except in
case of clause (ii) and (iii) any such violation or default which would not,
singly or in the aggregate, reasonably be expected to result in a Material
Adverse Change not specifically disclosed in the Base Prospectus or any
Prospectus Supplement.

        (s)    NO ACTIONS, SUITS OR PROCEEDINGS. Except as disclosed in the Base
Prospectus or in any Prospectus Supplement, no action, suit or proceeding by or
before any foreign, federal, state or local court or governmental agency,
authority or body or any arbitrator involving the Company or any Significant
Subsidiary, as the case may be, or any of its property is pending or, to the
knowledge of the Company, threatened that if adversely determined: (i) could
reasonably be expected to have a Material Adverse Effect on the performance of
this Agreement or the consummation of any of the transactions contemplated
hereby; or (ii) could reasonably be expected to result in a Material Adverse
Change.

        (t)    ALL NECESSARY PERMITS, ETC. To its knowledge, each of the Company
and the Significant Subsidiaries possesses such valid and current certificates,
authorizations and permits issued by the appropriate foreign, federal, state or
local regulatory agencies or bodies necessary to conduct its business as
currently conducted, except to the extent that the failure to obtain such
certificates, authorizations or permits would not have a Material Adverse
Effect, and neither the Company nor any Significant Subsidiary has received any
notice of proceedings relating to the revocation or modification of, or
non-compliance with, any such certificate, authorization or permit which, singly
or in the aggregate, if the subject of an unfavorable decision, ruling or
finding, could reasonably be expected to result in a Material Adverse Change.

                                        6


        (u)    TITLE TO PROPERTIES. Except as disclosed in the Base Prospectus
or in any Prospectus Supplement, the Company and the Significant Subsidiaries
own or lease all properties necessary to the conduct of its operations as
presently conducted in all material respects. The Company and the Significant
Subsidiaries own or have valid rights to use the intellectual property assets
used in their business, necessary to conduct the business described in the Base
Prospectus and the Prospectus Supplement, as presently conducted, in all
material respects. Except as disclosed in the Base Prospectus or in any
Prospectus Supplement, there is no pending, or to the knowledge of the Company,
threatened, action, suit, proceeding or claim by others that the Company
infringes any patent, trademark, copyright, trade secret or other proprietary
rights of others which would reasonably be expected to have a Material Adverse
Effect, and the Company is unaware of any facts which would form a reasonable
basis for any such claim.

        (v)    TAX LAW COMPLIANCE. Except as disclosed in the Base Prospectus or
Prospectus Supplement, each of the Company and the Significant Subsidiaries has
filed all necessary foreign, federal, state and local income and franchise Tax
returns, except to the extent that the failure to file such Tax returns would
not have a Material Adverse Effect, and have paid all Taxes required to be paid
by any of them and, if due and payable, any related or similar assessment, fine
or penalty levied against any of them except for any such assessment, fine or
penalty that is currently being contested in good faith or as would not have a
Material Adverse Effect. Adequate charges, accruals and reserves have been made
in the applicable financial statements referred to in Section 2(l) above in
respect of all federal, state and foreign income and franchise taxes for all
periods as to which the tax liability of the Company or any Significant
Subsidiary has not been finally determined. Except as disclosed in the Base
Prospectus or Prospectus Supplement, neither the Company nor any Significant
Subsidiary is aware of any tax deficiency that has been or might reasonably be
asserted or threatened against it that could reasonably be expected to result in
a Material Adverse Change. For purposes of this Agreement, the terms "Tax" and
"Taxes" mean all federal, state, local and foreign taxes, and any other
assessments of a similar nature (whether imposed directly or through
withholding), including, without limitation, any interest, additions to tax, or
penalties applicable thereto. All such Tax returns are true, complete and
correct in all material respects.

        (w)    NO TRANSFER TAXES OR OTHER FEES. There are no transfer Taxes or
other similar fees or charges under United States law or the laws of any state
or any political subdivision thereof, required to be paid in connection with the
execution and delivery of this Agreement or the issuance and sale by the Company
of the Securities.

        (x)    ACCOUNTING CONTROLS. Each of the Company and the Significant
Subsidiaries (i) makes and keeps accurate books and records and (ii) maintains a
system of accounting controls sufficient to provide reasonable assurances that:
(A) transactions are executed in accordance with management's general or
specific authorization; (B) transactions are recorded as necessary to permit
preparation of financial statements in conformity with GAAP, the Act and the
Exchange Act and the rules and regulations of the Commission thereunder, and to
maintain accountability for assets; (C) access to assets is permitted only in
accordance with management's general or specific authorization; and (D) the
recorded accountability for assets is compared with existing assets at
reasonable intervals and appropriate action is taken with respect to any
differences.

        (y)    COMPANY NOT AN "INVESTMENT COMPANY." None of the Company or any
Significant Subsidiary is, or immediately after receipt of payment for the
Securities will be, an "investment company" or an entity "controlled" by an
"investment company" within the meaning of the Investment Company Act of 1940,
as amended (the "Investment Company Act"). Each of the Company and the
Significant Subsidiaries will conduct its business in a manner so that it will
not become subject to the Investment Company Act.

                                        7


        (z)    INSURANCE. Each of the Company and the Significant Subsidiaries
is insured by recognized, financially sound and reputable institutions with
policies in such amounts and with such deductibles and covering such risks as it
has determined are prudent and customary in the business in which it is engaged,
including directors and officers liability.

        (aa)   LABOR MATTERS. No material labor disturbance by the employees of
the Company or any Significant Subsidiary exists or, to the knowledge of the
Company or any Significant Subsidiary, is threatened or imminent, and neither
the Company nor any Significant Subsidiary is aware of any existing, threatened
or imminent labor disturbance by the employees of any of its principal
suppliers, manufacturers, contractors or customers that could reasonably be
expected to result in a Material Adverse Effect.

        (bb)   NO PRICE STABILIZATION OR MANIPULATION. The Company has not taken
and will not take, directly or indirectly, any action designed to or that could
reasonably be expected to cause or result in stabilization or manipulation of
the price of the Common Stock of the Company to facilitate the sale or resale of
the Securities.

        (cc)   PRIOR STOCK ISSUANCES. All offers and sales of capital stock of
the Company prior to the date hereof were at all relevant times duly registered
or exempt from the registration requirements of the Act and were duly registered
or subject to an available exemption from the registration requirements of the
applicable state securities or blue sky laws.

        (dd)   RELATED PARTY TRANSACTIONS. There are no material business
relationships or related-party transactions involving the Company or any
Significant Subsidiary or any other person required by the Act to be described
in the Base Prospectus or any Prospectus Supplement, which have not been
described, or incorporated by reference, therein as required.

        (ee)   EXHIBITS. Each agreement described in or filed as an exhibit to
the Registration Statement, the Base Prospectus and/or the Prospectus
Supplement, including all documents incorporated by reference therein, is in
full force and effect and is valid and enforceable by the Company or Significant
Subsidiary, as the case may be, in accordance with its terms, except as the
enforceability thereof may be limited by applicable bankruptcy, insolvency or
similar laws affecting creditors' rights generally. Except as disclosed in the
Base Prospectus or Prospectus Supplement, neither the Company nor any
Significant Subsidiary, as the case may be, nor, to the knowledge of the Company
or any such Significant Subsidiary, any other party, is in default in the
observance or performance of any term or obligation to be performed by it under
any such agreement, and no event has occurred that with notice or lapse of time
or both would constitute such a default, in any such case where such default or
event would have a Material Adverse Effect.

        (ff)   BLUE SKY LAWS, NASD MATTERS. The Securities have been or will be
qualified for sale under the securities laws of such jurisdictions (United
States and foreign) as the Placement Agents and the Investors determine, or are
or will be exempt from the qualification and broker-dealer requirements of such
jurisdictions. The Company meets the pre-1992 eligibility requirements for the
use of the Registration Statement on Form S-3 contemplated, which requirements
include that the Company (i) has a public float of at least $150 million or a
public common equity float of between $100 million and $150 million and annual
trading volume of at least three million shares and (ii) the Company has been
continuously subject to and fulfilled the reporting requirements under the
Exchange Act for a period of 36 months.

        (gg)   Any certificate signed by an officer of the Company and delivered
to the Placement Agents or to counsel for the Placement Agents in connection
herewith or in connection with any Offering

                                        8


shall be deemed to be a representation and warranty by the Company to the
Placement Agents as to the matters set forth therein.

SECTION 3.     DELIVERY AND PAYMENT.

        On the Closing Date of the Offering, each of the Investors will deposit
into an account designated by the Company an amount equal to the price per
Security as set forth in the Pricing Agreement. At 10:00 a.m., California time
or at such other time on the date of the closing of the takedown (the "Closing")
as may be agreed upon by the Company and the Placement Agents (the "Closing
Date"), the Company shall (a) deliver certificates in definitive form evidencing
the Securities, against payment therefor, to the Investors, which shall be
registered in such names and in such denominations as the Placement Agents or
the Investors shall request by written notice to the Company; or (b) for
Investors who provide the necessary account information to the Company, the
Company shall cause such Securities to be issued and delivered into a balance
account with The Depository Trust Company through its DWAC System. For the
purpose of expedited checking and packaging of the certificates for the
Securities, the Company agrees to make such certificates available for
inspection at the offices of the Placement Agents at least 24 hours prior to the
Closing Date. The Closing shall take place at the Company's principal executive
offices or at the offices of the Company's legal counsel. All actions taken at
the Closing shall be deemed to have occurred simultaneously.

SECTION 4.     COVENANTS OF THE COMPANY.

        The Company further covenants to and agrees with the Placement Agents as
follows:

        (a)    REGISTRATION STATEMENT MATTERS. The Company agrees to advise the
Placement Agents promptly during the period in which a prospectus is required by
law to be delivered by an agent or a dealer in connection with the distribution
of Securities contemplated by the Base Prospectus or any Prospectus Supplement
(the "Prospectus Delivery Period"), of the time when any amendment to the
Registration Statement has been filed or becomes effective or any supplement to
the Prospectus Supplement or any amended Prospectus Supplement has been filed
and to furnish the Placement Agents with copies thereof; to file promptly all
reports and any definitive proxy or information statements required to be filed
by the Company with the Commission pursuant to Section 13(a), 14 or 15(d) of the
Exchange Act subsequent to the date of the Prospectus Supplement and for so long
as the delivery of a prospectus is required in connection with the offering or
sale of the Securities; to advise Placement Agents promptly after it receives
notices thereof (i) of any request by the Commission to amend the Registration
Statement or to amend or supplement the Prospectus Supplement or for additional
information and (ii) of the issuance by the Commission, of any stop order
suspending the effectiveness of the Registration Statement or any post-effective
amendment thereto or any order directed at any Incorporated Document or any
amendment or supplement thereto or any order preventing or suspending the use of
the Base Prospectus or the Prospectus Supplement or any amendment or supplement
thereto or any post-effective amendment to the Registration Statement, of the
suspension of the qualification of the Securities for offering or sale in any
jurisdiction, of the institution or threatening of any proceeding for any such
purpose, or of any request by the Commission for the amending or supplementing
of the Registration Statement or Prospectus Supplement or for additional
information; and, in the event of the issuance of any stop order or of any order
preventing or suspending the use of the Base Prospectus or Prospectus Supplement
or suspending any such qualification, promptly to use its best efforts to obtain
the withdrawal of such order.

        (b)    BLUE SKY COMPLIANCE. The Company will cooperate with the
Placement Agents and the Investors in endeavoring to qualify the Securities for
sale under the securities laws of such jurisdictions (United States and foreign)
as the Placement Agents and the Investors may reasonably request and will

                                        9


make such applications, file such documents, and furnish such information as may
be reasonably required for that purpose, provided the Company shall not be
required to qualify as a foreign corporation or to file a general consent to
service of process in any jurisdiction where it is not now so qualified or
required to file such a consent, and provided further that the Company shall not
be required to produce any new disclosure document other than the Prospectus
Supplement. The Company will, from time to time, prepare and file such
statements, reports and other documents as are or may be required to continue
such qualifications in effect for so long a period as the Placement Agents may
reasonably request for distribution of the Securities.

        (c)    AMENDMENTS AND SUPPLEMENTS TO THE PROSPECTUS SUPPLEMENT AND OTHER
SECURITIES ACT MATTERS. The Company will comply with the Act and the Exchange
Act, and the rules and regulations of the Commission thereunder, so as to permit
the completion of the distribution of the Securities as contemplated in this
Agreement, the Base Prospectus and the Prospectus Supplement. If during the
Prospectus Delivery Period any event shall occur as a result of which, in the
judgment of the Company or in the reasonable opinion of the Placement Agents or
counsel for the Placement Agents, it becomes necessary to amend or supplement
the Base Prospectus or any Prospectus Supplement in order to make the statements
therein, in the light of the circumstances existing at the time the Prospectus
Supplement is delivered to a purchaser, not misleading, or, if it is necessary
at any time to amend or supplement the Base Prospectus or any Prospectus
Supplement to comply with any law, the Company promptly will prepare and file
with the Commission, and furnish at its own expense to the Placement Agents and
to dealers, an appropriate amendment to the Registration Statement or supplement
to the Base Prospectus or any Prospectus Supplement so that the Prospectus
Supplement as so amended or supplemented will not, in the light of the
circumstances when it is so delivered, be misleading, or so that the Base
Prospectus or any Prospectus Supplement will comply with such law. Before
amending the Registration Statement or supplementing the Base Prospectus in
connection with the Offering, the Company will furnish the Placement Agents with
a copy of such proposed amendment or supplement and will not file such amendment
or supplement to which the Placement Agents reasonably and promptly objects.

        (d)    COPIES OF ANY AMENDMENTS AND SUPPLEMENTS TO THE PROSPECTUS
SUPPLEMENT. The Company agrees to furnish the Placement Agents, without charge,
during the period beginning on the date hereof and ending on the later of the
Closing Date of the Offering or such date that is, in the opinion of counsel for
the Placement Agents, the end of the Prospectus Delivery Period, as many copies
of the Base Prospectus and Prospectus Supplement and any amendments and
supplements thereto (including any Incorporated Documents) as the Placement
Agents may reasonably request.

        (e)    USE OF PROCEEDS. The Company shall apply the net proceeds from
the sale of the Securities sold by it in the manner described under the caption
"Use of Proceeds" in the Prospectus Supplement.

        (f)    TRANSFER AGENT. The Company shall engage and maintain, at its
expense, a registrar and transfer agent for its Common Stock.

        (g)    EARNINGS STATEMENT. As soon as practicable and in accordance with
applicable requirements under the Act, but in any event not later than 18 months
after the Closing Date of the Offering, the Company will make generally
available to its security holders and to the Placement Agents an earnings
statement, covering a period of at least 12 consecutive months beginning after
the Closing Date, that satisfies the provisions of Section 11(a) and Rule 158
under the Act.

        (h)    PERIODIC REPORTING OBLIGATIONS. During the Prospectus Delivery
Period, the Company shall duly file, on a timely basis, with the Commission and
the Nasdaq National Market all reports and

                                       10


documents required to be filed under the Exchange Act within the time periods
and in the manner required by the Exchange Act.

        (i)    ADDITIONAL DOCUMENTS. The Company will enter into any
subscription, purchase or other customary agreements as the Placement Agents or
the Investors deem necessary or appropriate to consummate the Offering, all of
which will be in form and substance acceptable to the Placement Agents, the
Investors and the Company. The Company agrees that the Placement Agents may rely
upon, and is a third party beneficiary of, the representation and warranties,
and applicable covenants, set forth in any such purchase, subscription or other
agreement with Investors in the Offering.

SECTION 5.     CONDITIONS OF THE OBLIGATIONS OF THE PLACEMENT AGENTS.

        The obligations of the Placement Agents hereunder shall be subject to
the accuracy in all material respects of the representations and warranties on
the part of the Company set forth in Section 2 as of the date hereof and as of
the Closing Date of the Offering as though then made, to the timely performance
by the Company of its covenants and other obligations hereunder on and as of
such dates, and to each of the following additional conditions:

        (a)    COMPLIANCE WITH REGISTRATION REQUIREMENTS; NO STOP ORDERS. The
Prospectus Supplement shall have been duly filed with the Commission in
accordance with Rule 424(b); no stop order suspending the effectiveness of the
Registration Statement or any part thereof shall have been issued and no
proceeding for that purpose shall have been initiated or threatened by the
Commission; no order preventing or suspending the use of any Prospectus
Supplement shall have been issued and no proceeding for that purpose shall have
been initiated or threatened by the Commission; no order having the effect of
ceasing or suspending the distribution of the Securities or any other securities
of the Company shall have been issued by any securities commission, securities
regulatory authority or stock exchange and no proceedings for that purpose shall
have been instituted or shall be pending or, to the knowledge of the Company,
contemplated by any securities commission, securities regulatory authority or
stock exchange; all requests for additional information on the part of the
Commission shall have been complied with.

        (b)    CORPORATE PROCEEDINGS. All corporate proceedings and other legal
matters in connection with this Agreement, the Registration Statement and the
Prospectus Supplement, and the registration, authorization, issue, sale and
delivery of the Securities, shall have been reasonably satisfactory to the
Placement Agents' counsel, and such counsel shall have been furnished with such
papers and information as they may reasonably have requested to enable them to
pass upon the matters referred to in this Section 5.

        (c)    NO MATERIAL ADVERSE CHANGE OR MATERIAL ADVERSE EFFECT. Subsequent
to the execution and delivery of this Agreement and prior to the Closing Date,
there shall not have occurred any Material Adverse Change or Material Adverse
Effect, which, in the Placement Agents' reasonable judgment, makes it
impracticable or inadvisable to proceed with the public offering of the
Securities on the terms and in the manner contemplated by the applicable
Prospectus Supplement.

        (d)    OPINION OF COUNSEL FOR THE COMPANY. The Placement Agents shall
have received on the Closing Date of the Offering, and the Company shall cause
to be delivered to the Placement Agents, an opinion substantially in the form of
"Exhibit B" attached hereto, of legal counsel to the Company, dated the Closing
Date, addressed to the Placement Agents.

        (e)    ACCOUNTANTS' COMFORT LETTER. The Placement Agents shall have
received on the Closing Date and the Company shall cause to be delivered to the
Placement Agents, a letter from PWC (or the

                                       11


Company's then current independent auditors), addressed to the Placement Agents,
dated as of the Closing Date, in a form acceptable the Placement Agents. The
letter shall not disclose any change in the financial condition, earnings,
operations or business of the Company from that set forth in the Registration
Statement or the Prospectus Supplement, which, in the Placement Agents' sole
judgment, is material and adverse and that makes it, the Placement Agents' sole
judgment, impracticable or inadvisable to proceed with the Offering of the
Securities as contemplated by such Prospectus Supplement.

        (f)    OFFICERS' CERTIFICATE. The Placement Agents shall have received
on the Closing Date a certificate of the Company, dated as of the Closing Date
and signed by the Chief Executive Officer and Chief Financial Officer of the
Company, to the effect that:

               (i)    The representations and warranties of the Company in this
        Agreement are true and correct in all material respects, as if made on
        and as of the Closing Date, and the Company has complied with all the
        agreements and satisfied all the conditions on its part to be performed
        or satisfied at or prior to the Closing Date;

               (ii)   No stop order suspending the effectiveness of the
        Registration Statement or the use of the Base Prospectus or the
        Prospectus Supplement has been issued and no proceedings for that
        purpose have been instituted or are pending or, to the Company's
        knowledge, threatened under the Act; no order having the effect of
        ceasing or suspending the distribution of the Securities or any other
        securities of the Company has been issued by any securities commission,
        securities regulatory authority or stock exchange in the United States
        and no proceedings for that purpose have been instituted or are pending
        or, to the knowledge of the Company, contemplated by any securities
        commission, securities regulatory authority or stock exchange in the
        United States;

               (iii)  As to the Registration Statement, the Base Prospectus and
        the Prospectus Supplement and any amendments or supplements thereto, and
        the Incorporated Documents, when such documents became effective or were
        filed with the Commission and as of the date hereof, each contained or
        contains all material information required to be included therein by the
        Act and the Exchange Act and the applicable rules and regulations of the
        Commission thereunder, as the case may be, and in all material respects
        conformed or conforms to the requirements of the Act and the Exchange
        Act and the applicable rules and regulations of the Commission
        thereunder, as the case may be, and the Registration Statement, the Base
        Prospectus and the Prospectus Supplement, and any amendments or
        supplements thereto, did not and do not include any untrue statement of
        a material fact or omit to state a material fact required to be stated
        therein or necessary to make the statements therein, in the light of the
        circumstances under which they were made, not misleading (provided,
        however, that the preceding representations and warranties contained in
        this paragraph (iii) shall not apply to any statements or omissions made
        in reliance upon and in conformity with information furnished in writing
        to the Company by the Placement Agents expressly for use therein) and,
        since the effective date of the Registration Statement, there has
        occurred no event required by the Act and the rules and regulations of
        the Commission thereunder to be set forth in an amended or supplemented
        Prospectus which has not been so set forth;

               (iv)   Subsequent to the respective dates as of which information
        is given in the Registration Statement, the Base Prospectus and the
        Prospectus Supplement, there has not been: (a) any Material Adverse
        Change; (b) any transaction that is material to the Company and the
        Significant Subsidiaries taken as a whole, except transactions entered
        into in the ordinary course of business; (c) any obligation, direct or
        contingent, that is material to the Company and the

                                       12


        Significant Subsidiaries taken as a whole, incurred by the Company or
        any Significant Subsidiary, except obligations incurred in the ordinary
        course of business; (d) any material change in the capital stock (except
        changes thereto resulting from the exercise of outstanding stock options
        or warrants) or outstanding indebtedness of the Company or any
        Significant Subsidiary; (e) any undisclosed dividend or distribution of
        any kind declared, paid or made on the capital stock of the Company; or
        (f) any loss or damage (whether or not insured) to the property of the
        Company or any Significant Subsidiary which has been sustained or will
        have been sustained which has a Material Adverse Effect.

               (v)    The numbers and percentages contained in the Registration
        Statement, Base Prospectus, the Prospectus Supplement, the Company's
        Form 10-K for the fiscal year ended December 31, 2002, the Company's
        quarterly report on Form 10-Q for the three month and nine month period
        ended September 30, 2003, and the Company's Proxy Statement dated April
        2, 2003, are true and correct in all material respects.

        (g)    STOCK EXCHANGE LISTING. The Common Stock (including any shares of
Common Stock issued in the Offering) is registered under the Exchange Act and is
or will as of the Closing Date be listed on the Nasdaq National Market, and the
Company has taken no action designed to, or likely to have the effect of
terminating the registration of the Common Stock under the Exchange Act or
delisting or suspending from trading the Common Stock from the Nasdaq National
Market, nor has the Company received any notice from the Commission or Nasdaq
indicating that the Commission or the Nasdaq National Market is contemplated
terminating such registration or listing that has not been withdrawn or
superceded, except as disclosed in the Base Prospectus or Prospectus Supplement.

        (h)    COMPLIANCE WITH PROSPECTUS DELIVERY REQUIREMENTS. The Company
shall have complied with the provisions of Sections 2(e) and (f) and 4 (a), (c)
and (d) with respect to the furnishing of Prospectus Supplements.

        (i)    ADDITIONAL DOCUMENTS. On or before the Closing Date, the
Placement Agents and counsel for the Placement Agents shall have received such
information and documents as they may reasonably require for the purposes of
enabling them to pass upon the issuance and sale of the Securities as
contemplated herein, or in order to evidence the accuracy of any of the
representations and warranties, or the satisfaction of any of the conditions or
agreements, herein contained.

SECTION 6.     PAYMENT OF EXPENSES.

        The Company agrees to pay all costs, fees and expenses incurred in
connection with the performance of its obligations hereunder and in connection
with the transactions contemplated hereby, including without limitation: (i) all
expenses incurred by the Company incident to the issuance, delivery and
qualification of the Securities (including all printing and engraving costs);
(ii) all fees and expenses of the registrar and transfer agent of the Common
Stock; (iii) all necessary issue, transfer and other stamp taxes in connection
with the issuance and sale of the Securities; (iv) all fees and expenses of the
Company's counsel, independent public or certified public accountants and other
advisors; (v) all costs and expenses incurred by the Company in connection with
the preparation, printing, filing, shipping and distribution of the Registration
Statement (including financial statements, exhibits, schedules, consents and
certificates of experts), the Base Prospectus and the Prospectus Supplement, and
all amendments and supplements thereto, and this Agreement; (vi) all filing
fees, reasonable attorneys' fees and expenses incurred by the Company in
connection with qualifying or registering (or obtaining exemptions from the
qualification or registration of) all or any part of the Securities for offer
and sale under the state securities or blue sky laws or the securities laws of
any other country; (vii) the filing fees incident to any review and approval by
the NASD of the Placement Agents' participation in the offering and distribution
of the

                                       13


Securities; (viii) the fees and expenses associated with including the
Securities on the Nasdaq National Market; (ix) all costs and expenses incident
to the travel and accommodation of the Company's employees on the "roadshow," if
any; and (x) all other fees, costs and expenses referred to in Part II of the
Registration Statement.

SECTION 7.     REIMBURSEMENT OF PLACEMENT AGENTS' EXPENSES.

        Whether or not this Agreement is terminated, and whether or not the sale
to the Investors of the Securities on the Closing Date is consummated, the
Company agrees to reimburse the Placement Agents, upon demand, for the following
out-of-pocket expenses that shall have been reasonably incurred by the Placement
Agents in connection with the proposed purchase and the offering and sale of the
Securities: reasonable attorney's fees and expenses, printing expenses, travel
and accommodation expenses, postage, facsimile and telephone charges; provided
that the Company will not be required to pay in excess of $20,000 in the
aggregate to reimburse the Placement Agents hereunder.

SECTION 8.     INDEMNIFICATION AND CONTRIBUTION.

        (a)    INDEMNIFICATION OF THE PLACEMENT AGENTS. The Company agrees (x)
to indemnify and hold harmless each of the Placement Agents, their respective
officers and employees, and each person, if any, who controls each such
Placement Agent within the meaning of the Act and the Exchange Act against any
loss, claim, damage, liability or expense, as incurred, to which each such
Placement Agents or such controlling person may become subject, under the Act,
the Exchange Act, or other federal or state statutory law or regulation, or at
common law or otherwise (including in settlement of any litigation, if such
settlement is effected with the written consent of the Company, which consent
shall not be unreasonably withheld), insofar as such loss, claim, damage,
liability or expense (or actions in respect thereof as contemplated below)
arises out of or is based: (i) upon any untrue statement or alleged untrue
statement of a material fact contained in the Registration Statement, or any
amendment thereto, or the omission or alleged omission therefrom of a material
fact required to be stated therein or necessary to make the statements therein,
in the light of the circumstances under which they were made, not misleading; or
(ii) upon any untrue statement or alleged untrue statement of a material fact
contained in the Base Prospectus or the Prospectus Supplement (or any amendment
or supplement thereto), or the omission or alleged omission therefrom of a
material fact necessary in order to make the statements therein, in the light of
the circumstances under which they were made, not misleading; or (iii) in whole
or in part upon any inaccuracy in the representations and warranties of the
Company contained herein; or (iv) in whole or in part upon any failure of the
Company to perform its obligations hereunder or under law; or (v) any act or
failure to act or any alleged act or failure to act by any other placement
agents or underwriters in connection with, or relating in any manner to, any
Offering under the Registration Statement in which no Placement Agent does or
did participate, provided that the Company shall not be liable to the extent
that a court of competent jurisdiction shall have determined by a final judgment
that such loss, claim, damage, liability or action resulted from any such acts
or failures to act undertaken or omitted to be taken by a Placement Agent
through its bad faith, willful misconduct or gross negligence; and (y) to
reimburse any such Placement Agent and each such controlling person for any and
all expenses (including the reasonable fees and disbursements of counsel chosen
by such Placement Agent) as such expenses are reasonably incurred by such
Placement Agent or such controlling person in connection with investigating,
defending, settling, compromising or paying any such loss, claim, damage,
liability, expense or action; provided, however, that the foregoing indemnity
agreement shall not apply to any loss, claim, damage, liability or expense to
the extent, but only to the extent, arising out of or based upon any untrue
statement or alleged untrue statement or omission or alleged omission made in
reliance upon and in conformity with written information furnished to the
Company by such Placement Agent expressly for use in the Registration Statement,
the Base Prospectus or the Prospectus Supplement (or any amendment or supplement
thereto).

                                       14


        (b)    INDEMNIFICATION OF THE COMPANY, ITS DIRECTORS AND OFFICERS. Each
of the Placement Agents agrees to indemnify and hold harmless the Company, each
of its directors, each of its officers who signed the Registration Statement
each person, if any, who controls the Company within the meaning of the Act or
the Exchange Act, against any loss, claim, damage, liability or expense, as
incurred, to which the Company, or any such director, officer, controlling
person may become subject, under the Act, the Exchange Act, or other federal,
state statutory law or regulation, or at common law or otherwise (including in
settlement of any litigation, if such settlement is effected with the written
consent of such Placement Agents), insofar as such loss, claim, damage,
liability or expense (or actions in respect thereof as contemplated below)
arises out of or is based upon any untrue or alleged untrue statement of a
material fact contained in any Prospectus Supplement (or any amendment or
supplement thereto), or arises out of or is based upon the omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, in each case to the
extent, but only to the extent, that such untrue statement or alleged untrue
statement or omission or alleged omission was made in such Prospectus Supplement
(or any amendment or supplement thereto), in reliance upon and in conformity
with written information furnished to the Company by such Placement Agents
expressly for use therein and to reimburse the Company, or any such director,
officer, controlling person for any legal and other expense reasonably incurred
by the Company, or any such director, officer, controlling person in connection
with investigating, defending, settling, compromising or paying any such loss,
claim, damage, liability, expense or action. The indemnity agreement set forth
in this Section 8(b) shall be in addition to any liabilities that a Placement
Agent may otherwise have.

        (c)    INFORMATION PROVIDED BY THE PLACEMENT AGENTS. The Company and
each person, if any, who controls the Company within the meaning of the Act or
the Exchange Act, hereby acknowledges that the only information that a Placement
Agent will furnish to the Company expressly for use in any Prospectus Supplement
(or any amendment or supplement thereto) are the statements regarding such
Placement Agent set forth under the caption "Plan of Distribution" in the
Prospectus Supplement.

        (d)    NOTIFICATIONS AND OTHER INDEMNIFICATION PROCEDURES. Promptly
after receipt by an indemnified party under this Section 8 of notice of the
commencement of any action, such indemnified party will, if a claim in respect
thereof is to be made against an indemnifying party under this Section 8, notify
the indemnifying party in writing of the commencement thereof, but the omission
so to notify the indemnifying party will not relieve it from any liability,
which it may have to any indemnified party for contribution to the extent it is
not prejudiced as a proximate result of such failure. In case any such action is
brought against any indemnified party and such indemnified party seeks or
intends to seek indemnity from an indemnifying party, the indemnifying party
will be entitled to participate in, and, to the extent that it shall elect,
jointly with all other indemnifying parties similarly notified, by written
notice delivered to the indemnified party promptly after receiving the aforesaid
notice from such indemnified party, to assume the defense thereof with counsel
reasonably satisfactory to such indemnified party; provided, however, if the
defendants in any such action include both the indemnified party and the
indemnifying party and the indemnified party shall have reasonably concluded
that a conflict may arise between the positions of the indemnifying party and
the indemnified party in conducting the defense of any such action or that there
may be legal defenses available to it and/or other indemnified parties which are
different from or additional to those available to the indemnifying party, the
indemnified party or parties shall have the right to select separate counsel to
assume such legal defenses and to otherwise participate in the defense of such
action on behalf of such indemnified party or parties. Upon receipt of notice
from the indemnifying party to such indemnified party of such indemnifying
party's election so to assume the defense of such action and approval by the
indemnified party of counsel, the indemnifying party will not be liable to such
indemnified party under this Section 8 for any legal or other expenses
subsequently incurred by such indemnified party in connection with the defense
thereof unless: (i) the indemnified party shall have employed separate counsel
in accordance with the proviso to the next preceding sentence (it being
understood, however, that the indemnifying party shall not be liable for the
expenses of more

                                       15


than one separate counsel (together with local counsel), approved by the
indemnifying party, representing the indemnified parties who are parties to such
action); (ii) the indemnifying party shall not have employed counsel
satisfactory to the indemnified party to represent the indemnified party within
a reasonable time after notice of commencement of the action; or (iii) the
indemnifying party has authorized the employment of counsel for the indemnified
party at the expense of the indemnifying party, in each of which cases the fees
and expenses of counsel shall be at the expense of the indemnifying party.

        (e)    SETTLEMENTS. The indemnifying party under this Section 8 shall
not be liable for any settlement of any proceeding effected without its written
consent, which consent shall not be unreasonably withheld, but if settled with
such consent or if there be a final judgment for the plaintiff, the indemnifying
party agrees to indemnify the indemnified party against any loss, claim, damage,
liability or expense by reason of such settlement or judgment. No indemnifying
party shall, without the prior written consent of the indemnified party, effect
any settlement, compromise or consent to the entry of judgment in any pending or
threatened action, suit or proceeding in respect of which any indemnified party
is or could have been a party and indemnity was or could have been sought
hereunder by such indemnified party, unless such settlement, compromise or
consent includes: (i) an unconditional release of such indemnified party from
all liability on claims that are the subject matter of such action, suit or
proceeding; and (ii) does not include a statement as to or an admission of
fault, culpability or a failure to act by or on behalf of any indemnified party.

        (f)    CONTRIBUTION. If the indemnification provided for in this
Section 8 is for any reason held unenforceable in respect of any losses, claims,
damages or liabilities (or actions or proceedings in respect thereof) then each
indemnifying party shall contribute to the aggregate amount paid or payable by
an indemnified party under Section 8(a) or 8(b) above in such proportion as is
appropriate to reflect the relative benefits received by such party on the one
hand and a Placement Agent on the other from the offering of the Securities. If,
however, the allocation provided by the immediately preceding sentence is not
permitted by applicable law then each indemnifying party shall contribute to
such amount paid or payable by such indemnified party in such proportion as is
appropriate to reflect not only such relative benefits but also the relative
fault of such indemnifying party on the one hand and a Placement Agent on the
other in connection with the statements or omissions which resulted in such
losses, claims, damages or liabilities (or actions or proceedings in respect
thereof), as well as any other relevant equitable considerations. The relative
fault shall be determined by reference to, among other things, whether the
untrue or alleged untrue statement of a material fact or the omission or alleged
omission to state a material fact relates to information supplied by the Company
or the "control" stockholders on the one hand or a Placement Agent on the other
and the parties' relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission.

        The Company and each of the Placement Agents agree that it would not be
just and equitable if contributions pursuant to this Section 8(f) were
determined by pro rata allocation or by any other method of allocation which
does not take account of the equitable considerations referred to above in this
Section 8(f). The amount paid or payable by an indemnified party as a result of
the losses, claims, damages or liabilities (or actions or proceedings in respect
thereof) referred to above in this Section 8(f) shall be deemed to include any
legal or other expenses reasonably incurred by such indemnified party in
connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this subsection (f): (i) no Placement Agent
shall be required to contribute any amount in excess of the amount of the
placement agency fees actually received by such Placement Agent pursuant to the
Offering at issue; and (ii) no person guilty of fraudulent misrepresentation
(within the meaning of Section 11(f) of the Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation.

                                       16


        (g)    TIMING OF ANY PAYMENTS OF INDEMNIFICATION. Any losses, claims,
damages, liabilities or expenses for which an indemnified party is entitled to
indemnification or contribution under this Section 8 shall be paid by the
indemnifying party to the indemnified party as such losses, claims, damages,
liabilities or expenses are incurred, but in all cases, no later than forty-five
(45) days of invoice to the indemnifying party (subject to receipt of an
undertaking to repay such amounts if an indemnified party is ultimately found
not to be eligible for indemnification hereunder).

        (h)    SURVIVAL. Section 6 (Payment of Expenses), Section 7
(Reimbursement of Placement Agents's Expenses), Section 8 (Indemnification and
Contribution) and Section 9 (Representations and Indemnities to Survive
Delivery) shall remain operative and in full force and effect, regardless of:
(i) any investigation made by or on behalf of the Placement Agents or any person
controlling such Placement Agents, the Company, its directors or officers or any
persons controlling the Company; (ii) acceptance of any Securities and payment
therefor hereunder; and (iii) any termination of this Agreement. A successor to
the Placement Agents, or to the Company, its directors or officers or any person
controlling the Company, shall be entitled to the benefits of the indemnity,
contribution and reimbursement agreements contained in this Section 8.

        (i)    ACKNOWLEDGEMENTS OF PARTIES. The parties to this Agreement hereby
acknowledge that they are sophisticated business persons who were represented by
counsel during the negotiations regarding the provisions hereof including,
without limitation, the provisions of this Section 8, and are fully informed
regarding said provisions. They further acknowledge that the provisions of this
Section 8 fairly allocate the risks in light of the ability of the parties to
investigate the Company and its business in order to assure that adequate
disclosure is made in the Registration Statement and the Prospectus Supplement
as required by the Act and the Exchange Act.

SECTION 9.     REPRESENTATIONS AND INDEMNITIES TO SURVIVE DELIVERY.

        The respective indemnities, agreements, representations, warranties and
other statements of the Company or any person controlling the Company, of its
officers, and of the Placement Agents set forth in or made pursuant to this
Agreement will remain in full force and effect, regardless of any investigation
made by or on behalf of the Placement Agents or the Company or any of its or
their partners, officers or directors or any controlling person, as the case may
be, and will survive delivery of and payment for the Securities sold hereunder
and any termination of this Agreement.

SECTION 10.    NOTICES.

        All communications hereunder shall be in writing and shall be mailed,
hand delivered or telecopied and confirmed to the parties hereto as follows:

If to the Placement Agents:

Roth Capital Partners, LLC
24 Corporate Plaza
Newport Beach, California 92660
Facsimile:  (949) 720-7223
Attention:  Managing Director

With a copy to

Snell & Wilmer L.L.P.
One Arizona Center

                                       17


Phoenix, Arizona 85004
Facsimile:  (602) 382-6070
Attention:  Steven D. Pidgeon

William Blair & Company, L.L.C.
222 West Adams
Chicago, IL 60606
Facsimile:  312-368-9418
Attention:  Kelly Martin

AVANT Immunotherapeutics, Inc.
119 Fourth Avenue
Needham, MA 02194-2725
Facsimile:  (781) 433-3191
Attention:  Una S. Ryan, PhD

With a copy to:

Goodwin Procter LLP
53 State Street, 24th Floor
Boston, MA 02109-2881
Facsimile:  (617) 523-1231
Attention:  Ettore Santucci

        Any party hereto may change the address for receipt of communications by
giving written notice to the others.

SECTION 11.    SUCCESSORS.

        This Agreement will inure to the benefit of and be binding upon the
parties hereto, and to the benefit of the employees, officers and directors and
controlling persons referred to in Section 8, and to their respective
successors, and personal representatives, and no other person will have any
right or obligation hereunder.

SECTION 12.    PARTIAL UNENFORCEABILITY.

        The invalidity or unenforceability of any section, paragraph or
provision of this Agreement shall not affect the validity or enforceability of
any other Section, paragraph or provision hereof. If any Section, paragraph or
provision of this Agreement is for any reason determined to be invalid or
unenforceable, there shall be deemed to be made such minor changes (and only
such minor changes) as are necessary to make it valid and enforceable.

SECTION 13.    GOVERNING LAW PROVISIONS.

        (a)    GOVERNING LAW. This agreement shall be governed by and construed
in accordance with the internal laws of the state of California applicable to
agreements made and to be performed in such state.

        (b)    CONSENT TO JURISDICTION. Any legal suit, action or proceeding
arising out of or based upon this Agreement or the transactions contemplated
hereby ("Related Proceedings") may be instituted in the federal courts of the
United States of America located in Orange County, California (collectively, the

                                       18


"Specified Courts"), and each party irrevocably submits to the exclusive
jurisdiction (except for proceedings instituted in regard to the enforcement of
a judgment of any such court (a "Related Judgment"), as to which such
jurisdiction is non-exclusive) of such courts in any such suit, action or
proceeding. Service of any process, summons, notice or document by mail to such
party's address set forth above shall be effective service of process for any
suit, action or other proceeding brought in any such court. The parties
irrevocably and unconditionally waive any objection to the laying of venue of
any suit, action or other proceeding in the Specified Courts and irrevocably and
unconditionally waive and agree not to plead or claim in any such court that any
such suit, action or other proceeding brought in any such court has been brought
in an inconvenient forum.

SECTION 14.    GENERAL PROVISIONS.

        This Agreement constitutes the entire agreement of the parties to this
Agreement and supersedes all prior written or oral and all contemporaneous oral
agreements, understandings and negotiations with respect to the subject matter
hereof. This Agreement may be executed in two or more counterparts, each one of
which shall be an original, with the same effect as if the signatures thereto
and hereto were upon the same instrument. This Agreement may not be amended or
modified unless in writing by all of the parties hereto, and no condition herein
(express or implied) may be waived unless waived in writing by each party whom
the condition is meant to benefit. Section headings herein are for the
convenience of the parties only and shall not affect the construction or
interpretation of this Agreement.

         [The remainder of this page has been intentionally left blank.]
                            [Signature Page Follows]

                                       19


        If the foregoing is in accordance with your understanding of our
agreement, please sign and return to the Company the enclosed copies hereof,
whereupon this instrument, along with all counterparts hereof, shall become a
binding agreement in accordance with its terms.

                                 Very truly yours,

                                 AVANT IMMUNOTHERAPEUTICS, INC.

                                 By:/s/ Una S. Ryan
                                    ------------------------------------------
                                    Name:  Una S. Ryan, PhD
                                    Title: President & Chief Executive Officer


        The foregoing Placement Agency Agreement is hereby confirmed and
accepted by the Placement Agents as of the date first above written.

ROTH CAPITAL PARTNERS LLC

By: /s/ John M. Dalfonsi
    ------------------------
    Name: John M. Dalfonsi
    Title: Managing Partner


WILLIAM BLAIR & COMPANY, LLC

By: /s/ Kelly Martin
    ------------------------
    Name: Kelly Martin
    Title: Principal

                 (SIGNATURE PAGE TO PLACEMENT AGENCY AGREEMENT)



                                    EXHIBIT A

                                PRICING AGREEMENT

                                    (OMITTED)

                                        2


                                    EXHIBIT B

                                 FORM OF OPINION

                                    (OMITTED)



                                                                     EXHIBIT 1.2

                                PRICING AGREEMENT

Roth Capital Partners. LLC
24 Corporate Plaza
Newport Beach, CA 92660

                                                          February 13, 2004

Ladies and Gentlemen:

     AVANT Immunotherapeutics, Inc., a Delaware corporation (the "Company"),
proposes, subject to the terms and conditions stated herein and in the Placement
Agency Agreement dated February 13, 2004 (the "Placement Agreement"), between
the Company, Roth Capital Partners, LLC, and William Blair & Company, LLC,
(collectively, the "Placement Agents") to issue and sell to the investors named
in SCHEDULE I hereto (the "Investors") the Securities as specified in SCHEDULE I
hereto. Each of the provisions of the Placement Agreement, including all defined
terms contained therein, is incorporated herein by reference in their entirety
and shall be deemed to be a part of this Agreement; and each of the
representations and warranties set forth therein shall be deemed to have been
made at and as of the date of this Pricing Agreement, except that each
representation and warranty which refers to the Base Prospectus in SECTION 2 of
the Placement Agreement shall be deemed to be a representation or warranty as of
the date of the Placement Agreement in relation to the Base Prospectus, and also
a representation and warranty as of the date of this Pricing Agreement in
relation to the Base Prospectus as amended or supplemented relating to the
Securities which are the subject of this Pricing Agreement, and except that the
Company has no Significant Subsidiaries.

     Subject to the terms and conditions set forth herein (including the
schedules hereto) and in the Placement Agreement incorporated herein by
reference, the Company agrees to issue and sell to each of the Investors, at the
time and place and at the purchase price as set forth in SCHEDULE II hereto, the
number and type of Securities set forth opposite the name of each such Investor
in SCHEDULE I hereto.

     Provided that the Securities are issued and sold to each of the Investors
pursuant to the terms of the Placement Agreement and this Pricing Agreement on
the Closing Date set forth in SCHEDULE II, the Company shall pay to the
Placement Agent the amount set forth in SCHEDULE II as compensation for services
rendered in connection with the issuance and sale of the Securities.



     If the foregoing is in accordance with your understanding, please sign and
return to us counterparts hereof.


                                   Very truly yours,

                                   AVANT IMMUNOTHERAPEUTICS, INC.

                                   By:/s/ Una S. Ryan
                                      ---------------------------
                                      Name:  Una S. Ryan, PhD
                                      Title: President & Chief Executive Officer


     The foregoing Placement Agency Agreement is hereby confirmed and accepted
by the Placement Agents as of the date first above written.

ROTH CAPITAL PARTNERS LLC

By: /s/ John M. Dalfonsi
    ------------------------
    Name: John M. Dalfonsi
    Title: Managing Partner


WILLIAM BLAIR & COMPANY, LLC

By: /s/ Kelly Martin
    ------------------------
    Name: Kelly Martin
    Title: Principal


                      (SIGNATURE PAGE TO PRICING AGREEMENT)



                                   SCHEDULE I

                                    [OMITTED]



                                   SCHEDULE II

TITLE OF SECURITIES:

 -   shares of Common Stock, $0.001 par value per share.

AGGREGATE DOLLAR AMOUNT:

 -   $24,653,750

PRICE TO INVESTORS:

 -   $2.75 per share

COMMISSION TO PLACEMENT AGENTS:

 -   6% of the gross proceeds received from the sale of the securities in the
     Offering

 -   $20,000 in expense reimbursement

SPECIFIED FUNDS FOR PAYMENT OF PURCHASE PRICE:

  Same day funds

CLOSING DATE:

      February 19, 2004

TIME OF DELIVERY:

     10.00 a.m., California time

CLOSING LOCATION:

      Offices of the Company's counsel or such other place as the parties shall
mutually agree.



                                                                    EXHIBIT 99.1

                      [AVANT IMMUNOTHERAPEUTICS, INC. LOGO]


FOR IMMEDIATE RELEASE/FEBRUARY 13, 2004



                                                             
Una S. Ryan, Ph.D.               Avery W. Catlin                   FOR MEDIA:
President and CEO                Chief Financial Officer           Joan Kureczka/Jesse Fisher
AVANT Immunotherapeutics, Inc.   AVANT Immunotherapeutics, Inc.    J. Kureczka Associates
(781) 433-0771                   (781) 433-0771                    (415) 821-2413
                                 info@avantimmune.com              jkureczka@aol.com
AVANT ANNOUNCES $25 MILLION EQUITY FINANCING NEEDHAM, MA (FEBRUARY 13, 2004): AVANT Immunotherapeutics, Inc. (Nasdaq: AVAN) announced today that it has received commitments from institutional investors for 8,965,000 shares of its common stock at a price of $2.75 per share for gross proceeds of approximately $25 million. No warrants were issued in connection with the offering. The shares were offered directly to selected institutional investors under a shelf registration statement filed by AVANT in November 2003 with the Securities and Exchange Commission. "This financing provides the resources to fund our clinical development programs, including TP10 for cardiac surgery, provides for our general working capital needs and enables us to pursue licensing and acquisition opportunities for complementary technologies and products," said Una S. Ryan, Ph.D., President and Chief Executive Officer of AVANT Immunotherapeutics. "Further, our cash balances now exceed our currently anticipated requirements for the next two years." AVANT Immunotherapeutics, Inc. discovers, develops and sells innovative vaccines and therapeutics that harness the human immune system to prevent and treat disease. The company has developed a broad, well-staged pipeline of vaccines and therapeutics for large, high-value, under-served markets. Six of AVANT's products are in clinical development. These include an oral human rotavirus vaccine, a treatment to reduce complement-mediated tissue damage associated with cardiac by-pass surgery, and a novel vaccine for cholesterol management. AVANT has also assembled a technology platform that enables the creation of rapid-protecting, single-dose, oral vaccines that remain stable without refrigeration. The company is - more - 119 FOURTH AVENUE NEEDHAM, MA 02494-2725 USA 781-433-0771 FAX 781-433-0262 www.avantimmune.com AVANT ANNOUNCES $25 MILLION EQUITY FINANCING FEBRUARY 13, 2004 Page 2 developing applications of this vaccine technology in four areas: biodefense, travelers' vaccines, global health needs, and human food safety. AVANT's goal is to demonstrate proof-of-concept for its products before leveraging further development through both traditional pharmaceutical partnerships and collaborations with governmental and other organizations. Additional information on AVANT Immunotherapeutics, Inc. can be obtained through our site on the World Wide Web: http://www.avantimmune.com. THE OFFERING HAS BEEN MADE BY MEANS OF A PROSPECTUS THAT MAY BE OBTAINED FROM AVERY W. CATLIN, CHIEF FINANCIAL OFFICER OF THE COMPANY. THIS PRESS RELEASE SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE SOLICITATION OF AN OFFER TO BUY, NOR SHALL THERE BE ANY SALE OF THESE SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER SECURITIES LAWS OF ANY SUCH STATE. SAFE HARBOR STATEMENT UNDER THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995: THIS RELEASE INCLUDES FORWARD-LOOKING STATEMENTS WHICH REFLECT AVANT'S CURRENT VIEWS WITH RESPECT TO FUTURE EVENTS AND FINANCIAL PERFORMANCE. THESE FORWARD-LOOKING STATEMENTS ARE BASED ON MANAGEMENT'S BELIEFS AND ASSUMPTIONS AND INFORMATION CURRENTLY AVAILABLE. THE WORDS "BELIEVE", "EXPECT", "ANTICIPATE", "INTEND", "ESTIMATE", "PROJECT" AND SIMILAR EXPRESSIONS WHICH DO NOT RELATE SOLELY TO HISTORICAL MATTERS IDENTIFY FORWARD-LOOKING STATEMENTS. INVESTORS SHOULD BE CAUTIOUS IN RELYING ON FORWARD-LOOKING STATEMENTS BECAUSE THEY ARE SUBJECT TO A VARIETY OF RISKS, UNCERTAINTIES, AND OTHER FACTORS THAT COULD CAUSE ACTUAL RESULTS TO DIFFER MATERIALLY FROM THOSE EXPRESSED IN ANY SUCH FORWARD-LOOKING STATEMENTS. THESE FACTORS INCLUDE, BUT ARE NOT LIMITED TO: (1) THE INTEGRATION OF AVANT'S ACQUIRED UPT TECHNOLOGY AND PROGRAMS WITH ITS ALREADY EXISTING TECHNOLOGY AND PROGRAMS; (2) THE ABILITY TO ADAPT AVANT'S VECTORING SYSTEMS TO DEVELOP NEW, SAFE AND EFFECTIVE ORALLY ADMINISTERED VACCINES AGAINST ANTHRAX AND PLAGUE OR OTHER BIOTERRORISM THREATS OR ANY OTHER MICROBES USED AS BIOWEAPONS; (3) THE ABILITY TO SUCCESSFULLY COMPLETE DEVELOPMENT AND COMMERCIALIZATION OF CHOLERAGARDE(TM) (PERU-15), TP10, TY800, CETI-1 AND OF OTHER PRODUCTS; (4) THE COST, TIMING, SCOPE AND RESULTS OF ONGOING SAFETY AND EFFICACY TRIALS OF CHOLERAGARDE(TM) (PERU-15), TP10, TY800, CETI-1 AND OTHER PRECLINICAL AND CLINICAL TESTING; (5) THE ABILITY TO SUCCESSFULLY COMPLETE PRODUCT RESEARCH AND FURTHER DEVELOPMENT, INCLUDING ANIMAL, PRE-CLINICAL AND CLINICAL STUDIES OF CHOLERAGARDE(TM) (PERU-15), TP10, TY800, CETI-1 AND OTHER PRODUCTS; (6) THE ABILITY TO MANAGE MULTIPLE LATE STAGE CLINICAL TRIALS FOR A VARIETY OF PRODUCT CANDIDATES; (7) THE VOLUME AND PROFITABILITY OF PRODUCT SALES OF MEGAN(R)VAC 1 AND OTHER FUTURE PRODUCTS; (8) CHANGES IN EXISTING AND POTENTIAL RELATIONSHIPS WITH CORPORATE COLLABORATORS; (9) THE COST, DELIVERY AND QUALITY OF CLINICAL AND COMMERCIAL GRADE MATERIALS SUPPLIED BY CONTRACT MANUFACTURERS; (10) THE TIMING, COST AND UNCERTAINTY OF OBTAINING REGULATORY APPROVALS TO USE CHOLERAGARDE(TM) (PERU-15) AND TY800, AMONG OTHER PURPOSES, TO PROTECT TRAVELERS AND PEOPLE IN ENDEMIC REGIONS FROM DIARRHEA CAUSING DISEASES, TO USE CETI-1, AMONG OTHER PURPOSES, TO RAISE SERUM HDL CHOLESTEROL LEVELS, TO USE TP10 TO IMPROVE PATIENT OUTCOMES FOLLOWING CARDIAC BY-PASS SURGERY, AND FOR OTHER PRODUCTS; (11) THE COST AND TIMING OF AVANT'S CONSTRUCTION, BUILD-OUT AND VALIDATION OF A FALL RIVER PILOT MANUFACTURING FACILITY; (12) THE ABILITY TO OBTAIN SUBSTANTIAL ADDITIONAL FUNDING; (13) THE ABILITY TO DEVELOP AND COMMERCIALIZE PRODUCTS BEFORE COMPETITORS; (14) THE ABILITY TO RETAIN CERTAIN MEMBERS OF MANAGEMENT; AND (15) OTHER FACTORS DETAILED FROM TIME TO TIME IN FILINGS WITH THE SECURITIES AND EXCHANGE COMMISSION. WE EXPRESSLY DISCLAIM ANY RESPONSIBILITY TO UPDATE FORWARD-LOOKING STATEMENTS. ###