<SUBMISSION>
<ACCESSION-NUMBER>0001157523-03-006103
<TYPE>8-K
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<PERIOD>20031030
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<ITEMS>5
<ITEMS>7
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<CONFORMED-NAME>CERUS CORP
<CIK>0001020214
<ASSIGNED-SIC>2836
<IRS-NUMBER>680262011
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
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<ACT>34
<FILE-NUMBER>000-21937
<FILM-NUMBER>03966855
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<BUSINESS-ADDRESS>
<STREET1>2411 STANWELL DR
<CITY>CONCORD
<STATE>CA
<ZIP>94520
<PHONE>9252886000
</BUSINESS-ADDRESS>
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<STREET1>2525 STANWELL DRIVE
<STREET2>STE 300
<CITY>CONCORD
<STATE>CA
<ZIP>94520
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<FORMER-CONFORMED-NAME>CERUS TECHNOLOGIES INC
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<TYPE>8-K
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<FILENAME>a4505650.txt
<DESCRIPTION>CERUS CORPORATION 8-K
<TEXT>
                       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): October 30, 2003

                                CERUS CORPORATION
             (Exact name of registrant as specified in its charter)

         Delaware                0-21937                68-0262011
 (State of jurisdiction) (Commission File No.) (IRS Employer Identification No.)

                               2411 Stanwell Drive
                            Concord, California 94520
              (Address of principal executive offices and zip code)

       Registrant's telephone number, including area code: (925) 288-6000


<PAGE>

Item 5.  Other Events.

On October 30, 2003, Cerus Corporation (the "Company") announced its financial
results for its third quarter ended September 30, 2003. A copy of the Company's
press release is attached as Exhibit 99.1 hereto and is incorporated herein by
reference.

Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits.

     (c)  Exhibits

Exhibit
Number        Description of Exhibit
-------       ------------------------------------------------------------------
 99.1         Press Release, dated October 30, 2003, entitled "Cerus Corporation
              Announces Third Quarter Results."

Item 12.  Results of Operations and Financial Condition.

On October 30, 2003, the Company announced its financial results for its third
quarter ended September 30, 2003 and conducted a publicly-available conference
call discussing those results. A copy of the Company's press release is attached
as Exhibit 99.1 hereto and is incorporated herein by reference.


<PAGE>

                                    SIGNATURE

     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.

                                              CERUS CORPORATION


Dated:    October 30, 2003                    By: /s/ Gregory W. Schafer
                                                  -----------------------------
                                                   Gregory W. Schafer
                                                   Vice President, Finance and
                                                   Chief Financial Officer



<PAGE>


                                Index to Exhibits

Exhibit
Number        Description of Exhibit
-------       ------------------------------------------------------------------
 99.1         Press Release, dated October 30, 2003, entitled "Cerus Corporation
              Announces Third Quarter Results."

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>3
<FILENAME>a4505650ex991.txt
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
                                                                    Exhibit 99.1

Cerus Corporation Announces Third Quarter Results

    CONCORD, Calif.--(BUSINESS WIRE)--Oct. 30, 2003--Cerus Corporation
(Nasdaq:CERS) today announced results for the third quarter ended
September 30, 2003.
    The net loss for the third quarter of 2003 was $14.2 million, or
$0.64 per share, compared to a net loss of $16.6 million, or $1.05 per
share, for the third quarter of 2002. The decrease in the net loss for
the quarter was due primarily to increased funding received under
cooperative agreements with the U.S. Armed Forces and reduced
operating expenses.
    Total revenue from government grants, development agreements and
product sales was $2.9 million for the third quarter of 2003, compared
to $0.7 million for the third quarter of 2002. For the nine-month
period, total revenue was $6.1 million for 2003, which included $5.3
million of funding from the U.S. Armed Forces, compared to $6.9
million for 2002, which included a $5.0 million milestone payment from
Baxter.
    At September 30, 2003, the company had cash, cash equivalents and
short-term investments of $123.1 million.
    Loan principal and accrued interest totaling $54.4 million under a
credit facility with Baxter Capital Corporation, a financial
subsidiary of Baxter International Inc., has been reclassified to a
current liability on the balance sheet, due to a dispute concerning
the timing of repayment. Details of the loan dispute were announced by
Cerus on October 15, 2003 in a press release and current report on
Form 8-K.
    In addition to financial results, Cerus also announced that the
company has been informed by Baxter that it has been notified by the
regulatory body in France that the review of the INTERCEPT platelet
marketing application is complete and the agency has granted
authorization for the preparation, distribution and therapeutic use of
the product. Commercial availability of the product is subject to
publication of a decree in the Official Journal to register INTERCEPT
Platelets and define their specifications, according to standard
procedure.
    Cerus and subsidiaries of Baxter International Inc. are
collaborating on development of the INTERCEPT Blood System to enhance
the safety of blood transfusions. The INTERCEPT Blood System for
platelets is being commercialized in Europe. The product is not yet
approved in the United States. In addition to the INTERCEPT Blood
System, Cerus also is developing therapeutic and vaccine applications
of its Helinx technology. The company's Epstein-Barr virus vaccine is
designed to protect organ transplant patients against this virus,
which can potentially cause malignant lymphoma. The company also is
developing an allogeneic cellular immune therapeutic (ACIT) designed
to improve the outcome of stem cell transplantation.

    QUARTERLY CONFERENCE CALL

    The company has scheduled its quarterly conference call for 4:30
p.m. EST today. Interested parties can access a live Internet
broadcast at
http://www.firstcallevents.com/service/ajwz391781680gf12.html. For
those unable to listen to the live broadcast, the call will be
archived at www.cerus.com.

    ABOUT CERUS

    Cerus Corporation is developing medical systems and therapeutics
to provide safer and more effective options to patients. The company
is developing products based on its proprietary Helinx(R) technology
for controlling biological replication. Cerus' most advanced programs
are focused on systems to enhance the safety of the world's blood
supply. The INTERCEPT Blood System, which is being developed in
collaboration with subsidiaries of Baxter International Inc., is based
on the company's Helinx technology. The INTERCEPT Blood System is
designed to inactivate viruses, bacteria, other pathogens and white
blood cells. The Concord, California-based company also is pursuing
therapeutic applications of Helinx technology to treat and prevent
serious diseases.

    Helinx is a trademark of Cerus Corporation.
    INTERCEPT and INTERCEPT Blood are trademarks of Baxter
International Inc.

    Statements in this news release regarding potential efficacy of
products, clinical trials, regulatory filings, product development and
commercial potential, possible outcomes of the loan dispute, and the
company's relationship with Baxter Healthcare are forward-looking
statements that involve risks and uncertainties. Actual results could
differ materially from the above forward-looking statements as a
result of certain factors, including the risks and uncertainty of the
timing and results of clinical trials and other development
activities, actions by regulatory authorities at any stage of the
development process, additional financing activities, manufacturing,
market acceptance of any products, competitive conditions, long term
growth opportunity of Cerus, legal proceedings, actions by Baxter and
other factors discussed in the company's most recent filings with the
Securities and Exchange Commission.



                           CERUS CORPORATION
               SELECTED UNAUDITED FINANCIAL INFORMATION


Condensed Statements of Operations
(in thousands, except per share information)

                                Three Months Ended   Nine Months Ended
                                  September 30,       September  30,
                                 2003       2002     2003       2002
                               --------- --------- --------- ---------

Revenue                          $2,868      $730    $6,140    $6,882

Operating expenses:
  Research and development       13,400    14,881    42,847    41,286
  General and administrative      2,587     2,925     8,105     8,751
                               --------- --------- --------- ---------
    Total operating expenses     15,987    17,806    50,952    50,037
                               --------- --------- --------- ---------
      Loss from operations      (13,119)  (17,076)  (44,812)  (43,155)
Interest income (expense),
 net                             (1,089)      485    (3,327)    1,733
                               --------- --------- --------- ---------
      Net loss                 ($14,208) ($16,591) ($48,139) ($41,422)
                               ========= ========= ========= =========

Net loss per share - basic
 and diluted                     ($0.64)   ($1.05)   ($2.61)   ($2.62)
                               ========= ========= ========= =========
Shares used in computing
 net loss per share - basic
 and diluted                     22,031    15,874    18,459    15,802
                               ========= ========= ========= =========




Condensed Balance Sheets                 September 30,    December 31,
(in thousands)                               2003             2002
                                         -------------    ------------

Cash, cash equivalents and short-term
 investments                               $123,125         $64,318
Accounts receivable from related parties         25              46
Accounts receivable and other current
 assets                                       4,680           2,884
Furniture and equipment, net                  3,388           5,547
Other assets                                    151             152
                                         -------------    ------------

     Total assets                          $131,369         $72,947
                                         =============    ============


Accounts payable to a related party          $6,180          $8,538
Current loan and interest payable
 to a related party                          54,417              --
Other current liabilities                     8,078           8,224
Capital lease obligation, less
 current portion                                 --              16
Stockholders' equity                         62,694          56,169
                                         -------------    ------------

     Total liabilities and
      stockholders' equity                 $131,369         $72,947
                                         =============    ============

    CONTACT: Cerus Corporation
             Sylvia Wheeler, 925-288-6061






</TEXT>
</DOCUMENT>
</SUBMISSION>
