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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549





FORM 10 - Q





(Mark One)



|x | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ---------------------------------------------------------------------------------------

For the quarterly period ended March 31, 2009

or



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------

For the transition period from:  to

Commission File Number 0-21937





CERUS CORPORATION

(Exact name of registrant as specified in its charter)







|                                                              |  |                                     
|------------------------------------------------------------- |  | ------------------------------------
|Delaware                                                      |  | 68-0262011                          
|(State or other jurisdictionof incorporation or organization) |  | (I.R.S. Employer Identification No.)

2411 Stanwell Drive

Concord, California 94520

(Address of principal executive offices, including
Zip Code)

(925) 288-6000

(Registrants telephone number, including area code)





Indicate by check mark whether
the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such
reports), and (2) has been subject to such filing requirements for the past 90 days.    YES  x    NO   ̈

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive
Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such
files).    YES   ̈    NO   ̈

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of large accelerated filer,
accelerated filer, and smaller reporting company in Rule 12b-2 of the Exchange Act. (Check one):



|                           |  |                      |  |                                                  |  |                             
|-------------------------- |  | -------------------- |  | ------------------------------------------------ |  | ----------------------------
|Large accelerated filer   ̈ |  | Accelerated filer  x |  | Non-accelerated filer   ̈                         |  | Smaller reporting company   ̈
|                           |  |                      |  | (Do not check if a smaller    reporting company) |  |                             

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the
Exchange Act).    YES   ̈    NO  x

As of April 22, 2009, there were 32.6 million shares of the registrants common stock outstanding.









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CERUS CORPORATION

QUARTERLY REPORT ON FORM 10-Q

THREE MONTHS ENDED MARCH 31, 2009

TABLE OF CONTENTS



|                             |  |                                                                                               |  |   
|---------------------------- |  | --------------------------------------------------------------------------------------------- |  | --
|PART I FINANCIAL INFORMATION |  |                                                                                              
|                             |  |                                                                                              
|Item 1.                      |  | Financial Statements                                                                          |  | 3 
|                             |  | Condensed Consolidated Balance Sheets - March 31, 2009, and December 31, 2008                 |  | 3 
|                             |  | Condensed Consolidated Statements of Operations - Three months ended March 31, 2009, and 2008 |  | 4 
|                             |  | Condensed Consolidated Statements of Cash Flows - Three months ended March 31, 2009, and 2008 |  | 5 
|                             |  | Notes to Condensed Consolidated Financial Statements                                          |  | 6 
|Item 2.                      |  | Managements Discussion and Analysis of Financial Condition and Results of Operations         |  | 17
|Item 3.                      |  | Quantitative and Qualitative Disclosures About Market Risk                                    |  | 27
|Item 4.                      |  | Controls and Procedures                                                                       |  | 27
|                             | 
|PART II OTHER INFORMATION    |  |                                                                                              
|                             |  |                                                                                              
|Item 1.                      |  | Legal Proceedings                                                                             |  | 27
|Item 1A.                     |  | Risk Factors                                                                                  |  | 27
|Item 2.                      |  | Unregistered Sales of Equity Securities and Use of Proceeds                                   |  | 39
|Item 3.                      |  | Defaults upon Senior Securities                                                               |  | 39
|Item 4.                      |  | Submission of Matters to a Vote of Security Holders                                           |  | 39
|Item 5.                      |  | Other Information                                                                             |  | 40
|Item 6.                      |  | Exhibits                                                                                      |  | 40
|                             | 
|SIGNATURES                   |  | 41                                                                                           



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PART I: FINANCIAL INFORMATION



|ITEM 1. | FINANCIAL STATEMENTS
|------- | --------------------

CERUS CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands)



|                                                                                                            |  |                          |          |   |                              |   |          |  
|----------------------------------------------------------------------------------------------------------- |  | ------------------------ | -------- | - | ---------------------------- | - | -------- | -
|                                                                                                            |  | March 31,2009(Unaudited) |          |   | December 31,2008(see Note 1) |  
|Assets                                                                                                      |  |                          |          |   |                              |   |          |  
|Current assets:                                                                                             |  |                          |          |   |                              |   |          |  
|Cash and cash equivalents                                                                                   |  | $                        | 6,983    |   |                              | $ | 10,303   |  
|Short-term investments                                                                                      |  |                          | 8,436    |   |                              |   | 12,275   |  
|Accounts receivable, net of allowance of $42 and $180 at March 31, 2009 and December 31, 2008, respectively |  |                          | 6,346    |   |                              |   | 7,152    |  
|Inventories                                                                                                 |  |                          | 11,105   |   |                              |   | 11,109   |  
|Prepaid and other current assets                                                                            |  |                          | 1,350    |   |                              |   | 1,204    |  
|                                                                                                            |  |                          |          |   |                              |   |          |  
|Total current assets                                                                                        |  |                          | 34,220   |   |                              |   | 42,043   |  
|Non-current assets:                                                                                         |  |                          |          |   |                              |   |          |  
|Property and equipment, net                                                                                 |  |                          | 1,712    |   |                              |   | 1,844    |  
|Long-term investment in related party                                                                       |  |                          | 2,164    |   |                              |   | 2,329    |  
|Restricted cash                                                                                             |  |                          | 307      |   |                              |   | 315      |  
|Other assets                                                                                                |  |                          | 761      |   |                              |   | 808      |  
|                                                                                                            |  |                          |          |   |                              |   |          |  
|Total assets                                                                                                |  | $                        | 39,164   |   |                              |   | 47,339   |  
|                                                                                                            |  |                          |          |   |                              |   |          |  
|Liabilities and stockholders equity                                                                        |  |                          |          |   |                              |   |          |  
|Current liabilities:                                                                                        |  |                          |          |   |                              |   |          |  
|Accounts payable                                                                                            |  | $                        | 6,531    |   |                              | $ | 7,963    |  
|Accrued liabilities                                                                                         |  |                          | 4,067    |   |                              |   | 4,490    |  
|Accrued restructuring                                                                                       |  |                          | 652      |   |                              |   |         |  
|Deferred revenue                                                                                            |  |                          | 410      |   |                              |   | 445      |  
|                                                                                                            |  |                          |          |   |                              |   |          |  
|Total current liabilities                                                                                   |  |                          | 11,660   |   |                              |   | 12,898   |  
|Non-current Liabilities                                                                                     |  |                          |          |   |                              |   |          |  
|Other non-current liabilities                                                                               |  |                          | 142      |   |                              |   | 163      |  
|                                                                                                            |  |                          |          |   |                              |   |          |  
|Total liabilities                                                                                           |  |                          | 11,802   |   |                              |   | 13,061   |  
|Stockholders equity                                                                                        |  |                          |          |   |                              |   |          |  
|Preferred stock                                                                                             |  |                          | 9,496    |   |                              |   | 9,496    |  
|Common stock                                                                                                |  |                          | 33       |   |                              |   | 33       |  
|Additional paid-in capital                                                                                  |  |                          | 411,062  |   |                              |   | 410,444  |  
|Accumulated other comprehensive income                                                                      |  |                          | 75       |   |                              |   | 212      |  
|Accumulated deficit                                                                                         |  |                          | (393,304 | ) |                              |   | (385,907 | )
|                                                                                                            |  |                          |          |   |                              |   |          |  
|Total stockholders equity                                                                                  |  | $                        | 27,362   |   |                              | $ | 34,278   |  
|                                                                                                            |  |                          |          |   |                              |   |          |  
|Total liabilities and stockholders equity                                                                  |  | $                        | 39,164   |   |                              | $ | 47,339   |  
|                                                                                                            |  |                          |          |   |                              |   |          |  

See notes to condensed consolidated financial statements.



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CERUS CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

UNAUDITED

(in thousands, except per share data)



|                                                                                          |  |                             |        |   |      |   |        |  
|----------------------------------------------------------------------------------------- |  | --------------------------- | ------ | - | ---- | - | ------ | -
|                                                                                          |  | Three Months EndedMarch 31, |       
|                                                                                          |  | 2009                        |        |   | 2008 |  
|Revenue:                                                                                  |  |                             |        |   |      |   |        |  
|Product revenue                                                                           |  | $                           | 3,085  |   |      | $ | 4,852  |  
|Government grants and cooperative agreement                                               |  |                             | 403    |   |      |   | 117    |  
|                                                                                          |  |                             |        |   |      |   |        |  
|Total revenue                                                                             |  |                             | 3,488  |   |      |   | 4,969  |  
|Cost of product revenue                                                                   |  |                             | 2,094  |   |      |   | 1,714  |  
|                                                                                          |  |                             |        |   |      |   |        |  
|Gross profit                                                                              |  |                             | 1,394  |   |      |   | 3,255  |  
|Operating expenses:                                                                       |  |                             |        |   |      |   |        |  
|Research and development                                                                  |  |                             | 2,012  |   |      |   | 2,784  |  
|Selling, general and administrative                                                       |  |                             | 6,101  |   |      |   | 7,101  |  
|Restructuring                                                                             |  |                             | 712    |   |      |   |       |  
|                                                                                          |  |                             |        |   |      |   |        |  
|Total operating expenses                                                                  |  |                             | 8,825  |   |      |   | 9,885  |  
|                                                                                          |  |                             |        |   |      |   |        |  
|Loss from operations                                                                      |  |                             | (7,431 | ) |      |   | (6,630 | )
|Interest income and other, net                                                            |  |                             | 34     |   |      |   | 690    |  
|                                                                                          |  |                             |        |   |      |   |        |  
|Net loss                                                                                  |  | $                           | (7,397 | ) |      | $ | (5,940 | )
|                                                                                          |  |                             |        |   |      |   |        |  
|Net loss per common share:                                                                |  |                             |        |   |      |   |        |  
|Net loss per share basic                                                                 |  | $                           | (0.23  | ) |      | $ | (0.18  | )
|Net loss per share diluted                                                               |  | $                           | (0.23  | ) |      | $ | (0.18  | )
|Weighted average common shares outstanding used for basic and diluted net loss per share: |  |                             |        |   |      |   |        |  
|Basic                                                                                     |  |                             | 32,590 |   |      |   | 32,210 |  
|Diluted                                                                                   |  |                             | 32,590 |   |      |   | 32,210 |  

See notes to condensed consolidated financial statements.



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CERUS CORPORATION

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

UNAUDITED

(in thousands)



|                                                                                           |  |                             |        |   |      |   |         |  
|------------------------------------------------------------------------------------------ |  | --------------------------- | ------ | - | ---- | - | ------- | -
|                                                                                           |  | Three Months EndedMarch 31, |       
|                                                                                           |  | 2009                        |        |   | 2008 |  
|Operating activities:                                                                      |  |                             |        |   |      |   |         |  
|Net loss                                                                                   |  | $                           | (7,397 | ) |      | $ | (5,940  | )
|Adjustments to reconcile net loss to net cash used in operating activities:                |  |                             |        |   |      |   |         |  
|Depreciation and amortization                                                              |  |                             | 189    |   |      |   | 110     |  
|Stock-based compensation to employees                                                      |  |                             | 575    |   |      |   | 623     |  
|Changes in operating assets and liabilities:                                               |  |                             |        |   |      |   |         |  
|Accounts receivable                                                                        |  |                             | 806    |   |      |   | 139     |  
|Inventories                                                                                |  |                             | 4      |   |      |   | (1,813  | )
|Other assets                                                                               |  |                             | 74     |   |      |   | 752     |  
|Accounts payable and accrued expenses                                                      |  |                             | (1,876 | ) |      |   | (3,355  | )
|Accrued restructuring                                                                      |  |                             | 652    |   |      |   |        |  
|Deferred revenue                                                                           |  |                             | (35    | ) |      |   | (1,215  | )
|                                                                                           |  |                             |        |   |      |   |         |  
|Net cash used in operating activities                                                      |  |                             | (7,008 | ) |      |   | (10,699 | )
|Investing activities:                                                                      |  |                             |        |   |      |   |         |  
|Purchases of furniture, equipment and leasehold improvements                               |  |                             | (57    | ) |      |   | (220    | )
|Purchases of short-term investments                                                        |  |                             |       |   |      |   | (1,297  | )
|Sales of short-term investments                                                            |  |                             |       |   |      |   | 800     |  
|Maturities of short-term investments                                                       |  |                             | 3,702  |   |      |   | 12,824  |  
|                                                                                           |  |                             |        |   |      |   |         |  
|Net cash provided by investing activities                                                  |  |                             | 3,645  |   |      |   | 12,107  |  
|Financing activities:                                                                      |  |                             |        |   |      |   |         |  
|Net proceeds from issuance of common stock, ESPP, stock options and restricted stock units |  |                             | 43     |   |      |   | 717     |  
|Payments on capital lease obligations                                                      |  |                             |       |   |      |   | (7      | )
|                                                                                           |  |                             |        |   |      |   |         |  
|Net cash provided by financing activities                                                  |  |                             | 43     |   |      |   | 710     |  
|                                                                                           |  |                             |        |   |      |   |         |  
|Net decrease in cash and cash equivalents                                                  |  |                             | (3,320 | ) |      |   | 2,118   |  
|Cash and cash equivalents, beginning of period                                             |  |                             | 10,303 |   |      |   | 19,625  |  
|                                                                                           |  |                             |        |   |      |   |         |  
|Cash and cash equivalents, end of period                                                   |  | $                           | 6,983  |   |      | $ | 21,743  |  
|                                                                                           |  |                             |        |   |      |   |         |  

See notes to condensed consolidated financial statements.



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CERUS CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

UNAUDITED

1. Summary of Significant Accounting Policies

Principles of Consolidation

The accompanying unaudited condensed consolidated financial statements include those of Cerus
Corporation and its subsidiary, Cerus Europe B.V. (collectively referred to hereinafter as Cerus or the Company) after elimination of all intercompany accounts and transactions. These condensed consolidated financial statements have been prepared in
accordance with accounting principles generally accepted in the United States for interim financial information and pursuant to the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the
information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments, considered necessary for a fair presentation have been included, including normal
recurring accrual adjustments and reclassifications. The Company has adjusted amounts previously reported for inventory and other income (expense), and net loss per share  basic and diluted for the three months ended March 31, 2008. The
adjustment resulted from the translation of inventory into US Dollars. Operating results for the three-month period ended March 31, 2009, are not necessarily indicative of the results that may be expected for the year ending December 31,
2009, or for any future period.

These condensed consolidated financial statements and notes should be read in conjunction with our audited
financial statements and notes thereto for the year ended December 31, 2008, included in our 2008 Annual Report on Form 10-K. The accompanying balance sheet as of December 31, 2008, has been derived from our audited financial statements as
of that date.

Use of Estimates

The
preparation of financial statements requires management to make estimates, assumptions and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, and related disclosures of contingent assets and liabilities. On an
ongoing basis, management evaluates its estimates, which are based on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. Actual results may differ from those estimates under different
assumptions or conditions.

Revenue

The Company recognizes revenue in accordance with the SECs published Staff Accounting Bulletin, or SAB, No. 104, Revenue Recognition, published by the Securities and Exchange Commission, or SEC, and Emerging Issues
Task Force, or EITF 00-21, Accounting for Revenue Arrangements with Multiple Deliverables, as applicable. Revenue is recognized when (i) persuasive evidence of an agreement with the funding party exists; (ii) services have been
rendered or product has been delivered; (iii) pricing is fixed or determinable; and (iv) collection is probable.

The
Companys main sources of revenues through March 31, 2009 were product revenue from sales of the INTERCEPT Blood System, research and development activities and agreements, United States government grants and awards, and commercialization
agreements.

Revenue related to product sales is generally recognized when the Company fulfills its obligations for each element of an
agreement. For all INTERCEPT Blood System sales, the Company uses a binding purchase order and signed sales contract as evidence of written agreement. The Company sells INTERCEPT Blood System directly to blood banks, hospitals, universities,
government agencies, as well as to distributors in certain regions. Generally, the Companys contracts with its customers do not provide for open return rights, except within a reasonable time after receipt of goods in the case of
non-conforming product. Deliverables and the units of accounting vary according to the provisions of the purchase order or sales contract. For revenue arrangements with multiple elements, the Company evaluates whether the delivered elements have
standalone value to the customer, whether the fair value of the undelivered elements is reliably determinable, and whether the delivery of the remaining elements is probable and within the Companys control. When all of these conditions are
met, the Company recognizes the revenue on the delivered elements. If these conditions are not met, the Company defers revenue until such time as all of the conditions have been met or all of the elements have been delivered. Consideration received
is allocated to elements that are identified as discrete units of accounting based on the relative fair value method. At March 31, 2009 and December 31, 2008, the Company had $0.4 million of short-term deferred revenue on its condensed
consolidated balance sheets. Freight costs charged to customers are recorded as a component of revenue under EITF 00-10, Accounting for Shipping and Handling Fees and Costs. Value-added-taxes, or VAT, that the Company invoices to its
customers and remits to governments, are recorded on a net basis, and are excluded from product revenue.



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Research and Development Expenses

The Company receives certain United States government grants that support the Companys efforts in defined research projects. These grants generally provide for reimbursement of approved costs incurred as defined
in the various grants. Revenue associated with these grants is recognized as costs under each grant are incurred. In accordance with Financial Accounting Standards Board, or FASB, Statement of Financial Accounting Standards, or FAS, No. 2,
Accounting for Research and Development Expenses, research and development expenses are charged to expense when incurred. Research and development expenses include salaries and related expenses for scientific personnel, payments to
consultants, supplies and chemicals used in in-house laboratories, costs of research and development facilities, depreciation of equipment and external contract research expenses, including clinical trials, preclinical safety studies, other
laboratory studies, process development and product manufacturing for research use.

The Companys use of estimates in recording
accrued liabilities for research and development activities (described previously in this Note under the heading Use of Estimates) affects the amounts of research and development expenses recorded and revenue recorded from development
funding and government grants and collaborative agreements. Actual results may differ from those estimates under different assumptions or conditions.

Cash, Cash Equivalents and Short-Term Investments

The Company considers all highly liquid investments with an original
maturity of 90 days or less from the date of purchase to be cash equivalents. Cash equivalents consist principally of short-term money market instruments.

In accordance with Statement of Financial Accounting Standards, or FAS, No. 115, Accounting for Certain Investments in Debt and Equity Securities, the Company has classified all debt securities as
available-for-sale at the time of purchase and reevaluates such designation as of each balance sheet date. Available-for-sale securities are carried at estimated fair value based on quoted market prices. The Company reports the amortization of any
premium and accretion of any discount resulting from the purchase of debt securities as a component of interest income and other, net. The Companys available-for-sale securities consist primarily of United States government agency securities
and corporate debt securities.

Unrealized gains at March 31, 2009, and December 31, 2008, are reported in accumulated other
comprehensive income on the Companys condensed consolidated balance sheets. The Company reviews all of its marketable securities on a regular basis to evaluate whether any security has experienced an other-than-temporary decline in fair value.
During the three months ended March 31, 2009 the Company did not recognize any other-than-temporary impairments on investments held in its portfolio. However, during the three months ended March 31, 2008, the Company recognized losses
totaling $0.1 million, associated with investments that had experienced an other-than-temporary decline in fair value. These investments primarily relate to fixed income securities. At March 31, 2009, the Company recorded the fair value of
these investments on its condensed consolidated balance sheet which have become the Companys basis for recording prospective unrealized gains and losses. The cost of securities sold is based on the specific identification method.

As of March 31, 2009, the Company also maintained a certificate of deposit for approximately $0.2 million with a domestic bank. The Company holds
this certificate of deposit for any potential decommissioning resulting from the Companys possession of radioactive material. The certificate of deposit is held to satisfy the financial surety requirements of the California Department of
Health Services and is recorded within other long-term assets on its condensed consolidated balance sheets at March 31, 2009, and December 31, 2008. In addition, the Company has certain other bank guarantees for its international
operations, totaling $0.1 million at both March 31, 2009 and December 31, 2008.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash equivalents, short-term investments
and accounts receivable.

Substantially all of the Companys cash, cash equivalents and short-term investments are maintained pursuant
to the Companys investment policy at a major financial institution of high credit standing. The Company monitors the financial credit worthiness of the issuers of its investments and limits the concentration in individual securities and type
of investments that exist within its investment portfolio. All of the Companys investments carry high credit quality ratings, in accordance with its investment policy. At March 31, 2009, the Company does not believe there is significant
financial risk from non-performance by the issuers of the Companys cash equivalents and short-term investments.

Concentrations of
credit risk with respect to trade receivables exist to the full extent of amounts presented in the condensed consolidated financial statements. On a regular basis, including the point of sale, the Company performs credit evaluations of its
customers. Generally, the Company does not require collateral from its customers to secure accounts receivable. To the extent that the Company determines specific invoices or customer accounts may be uncollectible, the Company reserves against the
accounts receivable on its balance sheet and records a charge on its statement of operations. At March 31, 2009, and December 31, 2008, the Company recorded allowances for potentially uncollectible accounts receivable of approximately
$42,000 and $180,000, respectively. Actual collection losses may differ from managements estimate, and such differences could be material to the Companys financial position and results of operations.



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The Company had two customers each accounting for more than 10% of the Companys outstanding trade
receivables and aggregating approximately 40% of outstanding trade receivables at March 31, 2009. To date, the Company has not experienced collection difficulties from these customers.

Inventories

At March 31, 2009, and
December 31, 2008, inventory consists of finished goods of INTERCEPT disposable kits, components thereof, UVA illumination devices, and certain replacement parts for the illumination devices. The Companys supply chain for certain of these
components, held as work-in-process on its condensed consolidated balance sheet, can take in excess of one year for production to be complete before the work-in-process is utilized in finished disposable kits. Inventory is recorded at the lower of
cost, determined on a first in, first-out basis, or market value. Platelet and plasma system disposable kits generally have two-year lives from date of manufacture. The Company frequently reviews the composition of inventory in order to identify
obsolete, slow-moving or otherwise unsalable items. To the extent unsalable items are observed and there is no alternative use, the Company will record a write-down to net realizable value in the period that the impairment is first recognized. At
March 31, 2009, and December 31, 2008, the Company had written down approximately $0.3 million and $0.1 million, respectively, associated with potentially obsolete or expiring product.

Property and Equipment, net

Property and equipment
is comprised of furniture, equipment, information technology hardware and software and is recorded at cost. At the time the property and equipment is ready for its intended use, it is depreciated on a straight-line basis over the estimated useful
lives of the assets (generally three to five years). Leasehold improvements are amortized on a straight-line basis over the shorter of the lease term or the estimated useful lives of the improvements.

The Company evaluates its long-lived assets for impairment in accordance with SFAS No. 144, Accounting for the Impairment or Disposal of
Long-Lived Assets. The Company continually monitors events and changes in circumstances that could indicate carrying amounts of its long-lived assets may not be recoverable. When such events or changes in circumstances occur, the Company
assesses recoverability by determining whether the carrying value of such assets will be recovered through the undiscounted expected future cash flows. If the future undiscounted cash flows are less than the carrying amount of these assets, the
Company recognizes an impairment loss based on the excess of the carrying amount over the fair value of the assets. The Company did not recognize impairment charges related to its long-lived assets during the three months ended March 31, 2009,
or 2008.

Long-Term Investment in Related Party

At March 31, 2009, and December 31, 2008, the Company held an approximate 13% interest in the voting securities of BioOne Corporation, or BioOne, and accounted for its investment in BioOne under the cost method. The Company
regularly evaluates several criteria in determining whether or not it has the ability to exercise significant influence over the operating and financial policies of BioOne. These criteria include but are not limited to: the availability and
frequency of access to financial information of BioOne, majority shareholder mix in BioOne, and representation on BioOnes board of directors. As a result of its evaluations, at March 31, 2009, and December 31, 2008, the Company
accounted for its investment under the cost method, as it has concluded that predominant evidence exists to support this conclusion.

The
Companys investment in BioOne is included in long-term investments in related party on its condensed consolidated balance sheets. The Company periodically re-evaluates the carrying value of its investment in BioOnes equity, and to the
extent that the criteria used to support the carrying change, the Company will need to reassess the recorded basis of its investment in BioOne.

Foreign
Currency Remeasurement

The functional currency of the Companys foreign subsidiary is the United States Dollar. Monetary assets
and liabilities denominated in foreign currencies are remeasured in United States Dollars using the exchange rates in effect at the balance sheet date. Non-monetary assets and liabilities denominated in foreign currencies are remeasured in United
States Dollars using historical exchange rates. Revenues and expenses are remeasured using average exchange rates prevailing during the period. Remeasurements are recorded in the Companys condensed consolidated statements of operations as a
component of interest income and other, net.

Stock-Based Compensation

The Company maintains an equity incentive plan to provide long-term incentives for employees, contractors, members of the Board of Directors, and Scientific Advisory Board. The plan allows for the issuance of
non-statutory and incentive stock options, restricted stock, restricted stock units, stock appreciation rights, other stock-related awards, and performance awards that may be settled in cash, stock, or other property. The Company also maintains an
employee stock purchase plan within the meaning of Section 423(b) of the Internal Revenue Code.



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The Company accounts for stock-based compensation in accordance with Statement of Financial Accounting
Standards No. 123R, Share Based Payment, or FAS123R. Under the fair value recognition provisions of FAS 123R, stock-based compensation cost is measured at the grant date based on the fair value of the award and is recognized as an
expense on a straight-line basis over the requisite service period, which is the vesting period. To the extent that stock options contain performance criteria for vesting, stock-based compensation is recognized once the performance criteria are
probable of being met.

The Company continues to apply the provisions of EITF 96-18, Accounting for Equity Instruments that are
Issued to Other than Employees for Acquiring, or in Conjunction with Selling, Goods or Services,, or EITF 96-18 for its non-employee stock-based awards. Under EITF 96-18, the measurement date at which the fair value of the stock-based award is
measured is equal to the earlier of 1) the date at which a commitment for performance by the counter party to earn the equity instrument is reached or 2) the date at which the counter partys performance is complete. The Company recognizes
stock-based compensation expense for the fair value of the vested portion of the non-employee awards in its condensed consolidated statements of operations.

Total stock-based compensation recognized on the Companys condensed consolidated statement of operations for the three months ended March 31, 2009, and 2008 impacted loss per share by $0.2 per share, for
both periods.

See Note 9 for further information regarding our stock-based compensation assumptions and expenses.

Other Comprehensive Income (Loss)

Statement of
Financial Accounting Standards No. 130, Reporting Comprehensive Income, or FAS 130, establishes the standards of reporting and displaying comprehensive income (loss) and its components in the condensed consolidated financial
statements. The components of comprehensive income (loss) include net income (loss) and other comprehensive income (loss). The Companys only component of other comprehensive income (loss) for the three months ended March 31, 2009, and
2008 was unrealized gains or losses from the Companys available-for-sales short-term investments. Other comprehensive income (loss) is reported as a separate component of stockholders equity.

Income Taxes

The Company accounts for income taxes
based upon Statement of Financial Accounting Standards No. 109, Accounting for Income Taxes, or FAS 109. Under FAS 109, deferred tax assets and liabilities are determined based on differences between the financial reporting and tax
bases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse and FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes, or
FIN 48. The Company did not have any recorded liabilities for unrecognized tax benefits at March 31, 2009, or December 31, 2008. The Company recognizes interest accrued and penalties related to unrecognized tax benefits in its income tax
expense. To date, the Company has not recognized any interest and penalties in its condensed consolidated statements of operations, nor has it accrued for or made payments for interest and penalties. The adoption of FIN 48 has not resulted in any
significant impact to the Company. The Company continues to carry a full valuation allowance on all of its deferred tax assets. The tax years 2004 through 2008 remain subject to examination by the taxing jurisdictions to which the Company is subject

Net Income (Loss) Per ShareBasic and Diluted

Basic earnings (loss) per share is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Diluted earnings (loss) per share reflects the assumed conversion
of all dilutive securities, such as options, restricted stock units and convertible preferred stock.

The following table sets forth the
reconciliation of the denominator used in the computation of basic and diluted net income (loss) per common share (in thousands):



|                                                                                                                                                      |  |                              |  |       
|----------------------------------------------------------------------------------------------------------------------------------------------------- |  | ---------------------------- |  | ------
|                                                                                                                                                      |  | Three Months Ended March 31,
|                                                                                                                                                      |  | 2009                         |  | 2008  
|Denominator:                                                                                                                                          |  |                              |  |       
|Basic weighted average number of common shares outstanding                                                                                            |  | 32,590                       |  | 32,210
|Effect of dilutive potential common shares resulting from convertible preferred stock, stock options, unvested restricted stock units and ESPP
shares |  |                             |  |      
|                                                                                                                                                      |  |                              |  |       
|Diluted weighted average number of common shares outstanding                                                                                          |  | 32,590                       |  | 32,210
|                                                                                                                                                      |  |                              |  |       



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The table below presents stock options, convertible preferred stock and restricted stock units that are
excluded from the diluted net income (loss) per common share due to their anti-dilutive effect (shares in thousands):



|                                                |  |       |  |      
|----------------------------------------------- |  | ----- |  | -----
|                                                |  | 2009  |  | 2008 
|Antidilutive securitiesweighted average shares |  | 6,833 |  | 5,421

Guarantee and Indemnification Arrangements

The Company recognizes the fair value for guarantee and indemnification arrangements issued or modified by the Company after December 31, 2002, if
these arrangements are within the scope of Financial Accounting Standards Board Interpretation No. 45, Guarantors Accounting and Disclosure Requirements for Guarantees, Including Indirect Guarantees of Indebtedness of Others,
or FIN 45. In addition, the Company monitors the conditions that are subject to the guarantees and indemnifications, as required under previously existing generally accepted accounting principles, in order to identify if a loss has occurred. If the
Company determines it is probable that a loss has occurred, then any such estimable loss would be recognized under those guarantees and indemnifications. Some of the agreements of the Company contain provisions that provide for the indemnification
of the counter-party to those agreements from damages and costs resulting from claims that the Companys technology infringes the intellectual property rights of a third party or claims that the sale or use of the Companys products have
caused personal injury or other damage or loss. The Company has not received any such requests for indemnification under these provisions and has not been required to make material payments pursuant to these provisions.

The Company generally provides for a one-year warranty on certain of its INTERCEPT blood-safety products covering defects in materials and workmanship.
The Company accrues costs associated with warranty obligations when claims become probable and estimable. There have been no warranty costs incurred through March 31, 2009. Accordingly, at March 31, 2009, the Company has not accrued for
any potential future warranty costs.

Fair Value of Financial Instruments

The Company adopted the provisions of Financial Accounting Standards No. 157, Fair Value Measurements, or FAS 157, on
January 1, 2008, relating to its financial assets and liabilities. The carrying amounts of accounts receivables, accounts payable, and other accrued liabilities approximate their fair value due to the relative short-term maturities. The
carrying amounts and fair value of the Companys short term investments and long term investments in related parties are described in Note 2. Financial Instruments to these condensed consolidated financial statements.

New Accounting Pronouncements

In December 2007, the
FASB issued SFAS No. 141 (revised 2007), Business Combinations, or FAS 141(R). FAS 141(R) retains the fundamental requirements of Statement No. 141 to account for all business combinations using the acquisition method
(formerly the purchase method) and for an acquiring entity to be identified in all business combinations. However, the new standard requires the acquiring entity in a business combination to recognize all (and only) the assets acquired and
liabilities assumed in the transaction; establishes the acquisition-date fair value as the measurement objective for all assets acquired and liabilities assumed; and requires the acquirer to disclose to investors and other users all of the
information they need to evaluate and understand the nature and financial effect of the business combination. The adoption of FAS 141(R) on January 1, 2009 did not have an effect on the Companys condensed consolidated financial
statements but may have an impact on the Companys condensed consolidated financial statements if and when the Company enters into a business combination.

In April 2008, the FASB issued FASB Staff Position, or FSP, No. 142-3, Determination of the Useful Life of Intangible Assets, or FSP 142-3. FSP 142-3 amends the factors an entity should consider in
developing renewal or extension assumptions used in determining the useful life of recognized intangible assets under FAS No. 142, Goodwill and Other Intangible Assets. This new guidance applies prospectively to intangible
assets that are acquired individually or with a group of other assets in business combinations and asset acquisitions. The Company adopted FSP 142-3 on January 1, 2009, however, adoption did not have an effect on its condensed consolidated
financial statements.

In November 2007, the EITF ratified a consensus on EITF Issue No. 07-1, Accounting for Collaborative
Arrangements, or EITF 07-1, which requires participants in a collaboration to make separate disclosures regarding the nature and purpose of an arrangement, their rights and obligations under the arrangement, the accounting policy for the
arrangement and the income statement classification and amounts arising from the arrangement between participants for each period an income statement is presented. EITF 07-1 became effective for the Company beginning January 1, 2009. Adoption
of EITF 07-1 did not have a material impact on the Companys condensed consolidated financial statements.



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Note 2. Financial Instruments

The Company measures and records certain financial assets at fair value on a recurring basis, including its available-for-sale short-term investments. The Companys available-for-sale short-term investments
consist of fixed income corporate bonds and United States government agency securities. The Company classifies investments with original maturities of three months or less at the date of purchase, as cash equivalents. Cash equivalents consist of
corporate commercial paper and money market funds, for which the carrying amount is a reasonable estimate of fair value.

At March 31,
2009, the fair values of certain of the Companys financial assets were determined using the following inputs (in thousands):



|                                              |  |       |        |                                                 |   |                                  |  |                               |       |  |   |  
|--------------------------------------------- |  | ----- | ------ | ----------------------------------------------- | - | -------------------------------- |  | ----------------------------- | ----- |  | - | -
|                                              |  |       |        | QuotedPrices inActiveMarkets forIdenticalAssets |   | SignificantOtherObservableInputs |  | SignificantUnobservableInputs
|Assets                                        |  | Total |        | (Level 1)                                       |   | (Level 2)                        |  | (Level 3)                    
|Money market funds(1)                         |  | $     | 5,118  |                                                 | $ | 5,118                            |  | $                             |      |  | $ | 
|Corporate bonds(2)                            |  |       | 5,397  |                                                 |   |                                 |  |                               | 5,397 |  |   | 
|United States government agency securities(2) |  |       | 3,039  |                                                 |   |                                 |  |                               | 3,039 |  |   | 
|                                              |  |       |        |                                                 |   |                                  |  |                               |       |  |   |  
|                                              |  | $     | 13,554 |                                                 | $ | 5,118                            |  | $                             | 8,436 |  | $ | 
|                                              |  |       |        |                                                 |   |                                  |  |                               |       |  |   |  



|(1) | Included in cash and cash equivalents on our condensed consolidated balance sheet.
|--- | ----------------------------------------------------------------------------------



|(2) | Included in short-term investments on our condensed consolidated balance sheet.
|--- | -------------------------------------------------------------------------------

The Company classifies investments within Level 1 if quote prices are available in active markets The Company classifies items in Level 2 if the investments are valued using observable inputs to quoted market prices,
benchmark yields, reported trades, broker/dealer quotes or alternative pricing sources with reasonable levels of price transparency. These investments include: United States government agencies and corporate bonds. Investments are held by a
custodian who obtains investment prices from a third party pricing provider that uses standard inputs to models which vary by asset class. The Company did not hold financial assets and liabilities which were recorded at fair value in the Level 3
category, which defines that one or more significant inputs or significant value drivers are unobservable, as of March 31, 2009.

Note 3.
Inventories

Inventories consisted of the following (in thousands):



|                 |  |               |        |                  |   |       
|---------------- |  | ------------- | ------ | ---------------- | - | ------
|                 |  | March 31,2009 |        | December 31,2008
|Work in progress |  | $             | 2,719  |                  | $ | 3,750 
|Finished goods   |  |               | 8,386  |                  |   | 7,359 
|                 |  |               |        |                  |   |       
|                 |  | $             | 11,105 |                  | $ | 11,109
|                 |  |               |        |                  |   |       

The Companys inventory at March 31, 2009, and December 31, 2008, consisted of
finished goods of INTERCEPT disposable kits, components thereof, UVA illumination devices, and certain replacement parts for the illumination devices. The Company is responsible for supplying Fenwal, Inc. with certain components for assembly into
finished INTERCEPT disposable kits. The Company accounts for these components as work-in-process until such time as the components are used in the production of finished INTERCEPT disposable sets. The Companys work-in-process components are
manufactured over a protracted length of time before being incorporated into the finished disposable kits. As a result, work-in-process costs accumulate for a period of time which can exceed one year.



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Note 4. Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):



|                                            |  |               |       |                  |   |      
|------------------------------------------- |  | ------------- | ----- | ---------------- | - | -----
|                                            |  | March 31,2009 |       | December 31,2008
|Accrued compensation and related            |  | $             | 802   |                  | $ | 636  
|Accrued inventory                           |  |               | 1,744 |                  |   | 2,121
|Accrued contract and other accrued expenses |  |               | 1,521 |                  |   | 1,733
|                                            |  |               |       |                  |   |      
|                                            |  | $             | 4,067 |                  | $ | 4,490
|                                            |  |               |       |                  |   |      

Note 5. Restructuring

During the three months ended March 31, 2009, pursuant to the Board of Directors approval, the Company began implementing a plan to focus resources on commercializing the INTERCEPT Blood System in Europe,
to consolidate facilities, and to reduce its cost structure. During the three months ended March 31, 2009, the Company incurred costs for one-time termination benefits for employee positions that were eliminated under the restructuring plan.
Effected employees receive severance consideration and continuation of benefits, as well as transition assistance. The Company also plans to consolidate facilities and incur certain other costs associated with the restructuring plan. The Company
anticipates continuing to implement its restructuring plan and incurring associated costs through the year ended December 31, 2009.

A
summary of the Companys restructuring costs is as follows (in thousands):



|                              |  |                              |   |                     |   |               |  |                          |    |  |   |    
|----------------------------- |  | ---------------------------- | - | ------------------- | - | ------------- |  | ------------------------ | -- |  | - | ---
|                              |  | Balance at December 31, 2008 |   | RestructuringCharge |   | Cash Payments |  | Balance atMarch 31, 2009
|One-time termination benefits |  | $                            |  |                     | $ | 712           |  | $                        | 60 |  | $ | 652
|                              |  |                              |   |                     |   |               |  |                          |    |  |   |    

Note 6. Commitments and Contingencies

Operating Leases

The Company leases its office facilities and certain equipment under non-cancelable
operating leases with initial terms in excess of one year that require the Company to pay operating costs, property taxes, insurance and maintenance. These facility leases generally contain renewal options and provisions adjusting the lease payments
if those renewal options are exercised. The Companys facility leases qualify as operating leases under Statement of Financial Accounting Standards No. 13, Accounting for Leases and as such, are not included on its condensed
consolidated balance sheets.

Royalties

The Company is obligated to pay royalties on certain INTERCEPT product sales based on a percentage of net sales generated. The royalty rates vary by product, with a rate of 10% of net sales for the platelet system, 3% for the plasma system,
5% for the red blood cells, or the red blood cell system, and 6.5% for illuminators.

Purchase Commitments

The Company is party to agreements with certain providers of INTERCEPT blood safety system components which the Company purchases and provides to Fenwal
at no cost. Certain of these agreements require minimum purchase commitments from the Company.

Note 7. Credit Agreement

In June 2008, the Company entered into a senior secured revolving credit facility with Wells Fargo Bank, N.A., or the Facility, which allows the Company
to borrow up to $10.0 million to be used for working capital and general operating needs. In December 2008 the Company amended the terms of the Facility. The initial term of the Facility is one year, if not extended. Interest on borrowings under the
Facility accrues at a fixed rate LIBOR plus three and one half percent (3.5%). The Facility is secured by all of the Companys assets, excluding intellectual property. The Facility also contains certain customary financial and non-financial
conditions, as well as certain specific financial covenants, including covenants which require the Company to maintain certain minimum cash balances and incur maximum net losses and net operating losses in any given quarter for which the Facility is
effective. Currently, the Company is unable to borrow under the Facility until such time as the Company has cured conditions that gave rise to a default under these financial covenants. At March 31, 2009, no amount was outstanding under the
Facility.



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Note 8. Stockholders Equity

Series B Preferred Stock

Fenwal holds 3,327 shares of the Companys Series B preferred stock.
The Series B preferred stock has no voting rights, except with respect to the authorization of any class or series of stock having preference or priority over the Series B preferred stock as to voting, liquidation or conversion or with respect to
the determination of fair market value of non-publicly traded shares received by the holder of Series B stock in the event of a liquidation, or except as required by Delaware law. Fenwal may convert each share of Series B preferred stock into 100
shares of the Companys common stock at any time. If all shares of Series B preferred stock were converted to common stock, 332,700 shares of common stock would be issued, which represents approximately 1% of the outstanding common stock of the
Company at March 31, 2009. The Company has the right to redeem the Series B preferred stock prior to conversion for a payment of $9.5 million.

Note 9. Stock-Based Compensation

2008 Equity Incentive Plan

The Company maintains an equity compensation plan to provide long-term incentives for employees, contractors, and members of its Board of Directors and
Scientific Advisory Boards. The Company currently grants awards from its 2008 Equity Incentive Plan, or the 2008 Plan. The 2008 Plan allows for the granting of stock options, restricted stock, restricted stock units, stock appreciation rights, other
stock-related awards, and performance awards which may be settled in cash, stock, or other property. The 2008 Plan has 3.6 million shares available for grant. Awards under the 2008 Plan generally have a maximum term of 10 years from the date
the award is granted. Employee options granted under the 2008 Plan generally vest over four years. The 2008 Plan generally requires options to be granted at 100% of the fair market value of the Companys common stock subject to the option on
the date of grant. Performance-based stock options granted under the 2008 Plan are limited to either 500,000 shares or $1.0 million, in the case of performance-based cash awards, per calendar year. As of March 31, 2009, the Company had granted
performance based stock options totaling 50,000 shares.

Employee Stock Purchase Plan

The Company also maintains an Employee Stock Purchase Plan, or the Purchase Plan. The Purchase Plan is intended to qualify as an employee stock purchase
plan within the meaning of Section 423(b) of the Internal Revenue Code. Under the Purchase Plan, the Companys Board of Directors may authorize participation by eligible employees, including officers, in periodic offerings. The offering
period for any offering can be no more than 27 months.

Restricted Stock Units

The Company has granted restricted stock units to the Chief Executive Officer, Senior Vice Presidents, and Vice Presidents in accordance with the Bonus
Plan for Senior Management of Cerus Corporation. Subject to each grantees continued employment shares underlying the grants vest in three annual installments and are issuable at the end of the three-year vesting term.

Restricted stock unit grants made in connection with the Bonus Plan for Senior Management of Cerus Corporation are presented in the following table:



|                        |  |               |  |                               |       |                               |       
|----------------------- |  | ------------- |  | ----------------------------- | ----- | ----------------------------- | ------
|Year Ended December 31, |  | Units granted |  | Grant date fairValue per unit |       | Units vested atMarch 31, 2009
|2009                    |  |              |  |                               |      |                               |      
|2008                    |  | 43,086        |  | $                             | 6.99  |                               |      
|2007                    |  | 60,620        |  |                               | 5.54  |                               | 20,207
|2006                    |  | 37,098        |  |                               | 10.32 |                               | 24,732
|                        |  |               |  |                               |       |                               |       
|Total                   |  | 140,804       |  |                               |       |                               | 44,939
|                        |  |               |  |                               |       |                               |       

Stock-based Compensation

The Company currently uses the Black-Scholes option pricing model to determine the fair value of stock options and employee stock purchase plan shares. The determination of the fair value of stock-based payment awards
on the date of grant using an option-pricing model is affected by the Companys stock price, as well as assumptions regarding a number of complex and subjective variables. The variables used to calculate the fair value of stock-based payment
awards using the Black-Scholes option pricing model include the expected term of the grants, the Companys expected stock price volatility, actual and projected employee stock option exercise behaviors, including forfeitures, the risk-free
interest rate and expected dividends.

The Company does not recognize stock-based compensation on stock options that contain performance
conditions, until such time as the performance criteria are probable of being achieved. As such, the Company had not recorded any such stock based compensation for the 50,000 performance-based stock options granted.



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Expected Term

The Company estimates the expected term of options granted using a variety of factors. Where possible, the Company estimates the expected term of options granted by analyzing employee exercise and post-vesting
termination behavior. To make this estimation, the Company analyzes the population of options granted by discreet, homogeneous groups. If the Company is unable to obtain sufficient information to estimate the expected term for a particular group, it
estimates the expected term of the options granted by taking the average of the vesting term and the contractual term of the option, as illustrated in SAB 107 and SAB 110. The expected term of employee stock purchase plan shares is the term of each
purchase period.

Estimated Volatility

The Company estimates the volatility of its common stock by using historical volatility of its common stock. The Company has used significant judgment in making these estimates and will continue to monitor the
availability of actively traded options on its common stock. If the Company determines that sufficient actively traded options on its common stock exist, it may consider a combination of historical and implied volatility, or solely implied
volatility.

Estimated Forfeiture Rate

The Company estimates the forfeiture rate of options at the time of grant and revises those estimates in subsequent periods if actual forfeiture rates differ from those estimates. The Company uses historical data to
estimate pre-vesting option forfeitures and records stock-based compensation expense only for those awards that are expected to vest. The Company estimates the historic pre-vesting forfeiture rates by groups that possess a degree of homogeneity
regarding average time to vest and expected term. All stock-based payment awards are amortized on a straight-line basis over the requisite service periods of the awards, which are generally the vesting periods.

Risk-Free Interest Rate

The Company
bases the risk-free interest rate that it uses in the option valuation model on United States Treasury zero-coupon issues with remaining terms similar to the expected term on the options.

Expected Dividend

The Company does
not anticipate paying any cash dividends in the foreseeable future and therefore uses an expected dividend yield of zero in the option valuation model.

The assumptions used to value option grants for three months ended March 31:



|                         |  |            |   |  |           |  
|------------------------ |  | ---------- | - |  | --------- | -
|                         |  | 2009       |   |  | 2008      |  
|Expected term (in years) |  | 5.25-6.50  |   |  | 4.16-6.73 |  
|Volatility               |  | 59.1%-84.1 | % |  | 59.1      | %
|Risk free interest rate  |  | 2.80%-4.03 | % |  | 4.03      | %

The assumptions used to value employee stock purchase rights for the three months ended
March 31:



|                         |  |            |   |  |      |  
|------------------------ |  | ---------- | - |  | ---- | -
|                         |  | 2009       |   |  | 2008 |  
|Expected term (in years) |  | 0.50       |   |  | 0.50 |  
|Volatility               |  | 54.6%-78.8 | % |  | 54.6 | %
|Risk free interest rate  |  | 2.0%-4.4   | % |  | 4.4  | %

Total stock-based compensation recognized on the Companys condensed consolidated statements
of operations for the three months ended March 31, 2009, and 2008, was as follows (in thousands):



|                                    |  |      |     |      |   |    
|----------------------------------- |  | ---- | --- | ---- | - | ---
|                                    |  | 2009 |     | 2008
|Research and development            |  | $    | 169 |      | $ | 200
|Selling, general and administrative |  |      | 406 |      |   | 423
|                                    |  |      |     |      |   |    
|                                    |  | $    | 575 |      | $ | 623
|                                    |  |      |     |      |   |    



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Activity under the Companys equity incentive plans is set forth below (in thousands except per share amounts):



|                              |  |                             |   |  |                                           |      
|----------------------------- |  | --------------------------- | - |  | ----------------------------------------- | -----
|                              |  | Number ofOptionsOutstanding |   |  | WeightedAverageExercisePrice perShare ($)
|Balances at December 31, 2008 |  | 5,063                       |   |  | $                                         | 10.27
|Granted                       |  | 1,647                       |   |  |                                           | 0.79 
|Cancelled                     |  | (138                        | ) |  |                                           | 7.17 
|Exercised                     |  |                            |   |  |                                           |      
|                              |  |                             |   |  |                                           |      
|Balances at March 31, 2009    |  | 6,572                       |   |  | $                                         | 7.96 
|                              |  |                             |   |  |                                           |      

Note 10  Comprehensive Loss

Comprehensive loss comprises net loss and other comprehensive loss. Other comprehensive loss for all periods presented comprises unrealized holding gains
on our available-for-sale securities, which are excluded from net loss and included as a component of stockholders equity. Comprehensive loss and its components are as follows (in thousands):



|                                                     |  |                             |        |   |      |   |        |  
|---------------------------------------------------- |  | --------------------------- | ------ | - | ---- | - | ------ | -
|                                                     |  | Three MonthsEnded March 31, |       
|                                                     |  | 2009                        |        |   | 2008 |  
|Net loss:                                            |  |                             |        |   |      |   |        |  
|As reported                                          |  | $                           | (7,397 | ) |      | $ | (5,940 | )
|Other comprehensive loss:                            |  |                             |        |   |      |   |        |  
|Net unrealized gain on available-for-sale securities |  |                             | 75     |   |      |   | 148    |  
|                                                     |  |                             |        |   |      |   |        |  
|Comprehensive loss                                   |  | $                           | (7,322 | ) |      | $ | (5,792 | )
|                                                     |  |                             |        |   |      |   |        |  

Note 11. Development and License Agreements

Agreements with BioOne

In April 2004, the Company made an investment in the common stock of BioOne,
a privately held Japanese corporation. BioOne was formed in 2004 to develop technologies to improve the safety of blood products in Asia, and is funded by equity investments from Japanese venture capital firms, other corporations and individual
investors.

Platelet Agreement

In June
2004, Baxter and the Company entered into an agreement with BioOne for commercialization of the INTERCEPT Blood System for platelets in parts of Asia. Under the terms of the agreement, BioOne is responsible, at its expense, for seeking regulatory
approvals and will have exclusive rights to market and distribute the INTERCEPT Blood System for platelets in Japan, China, Taiwan, South Korea, Thailand, Vietnam and Singapore, following their receipt of regulatory approval in each of those
countries. In July 2004 and October 2004, Baxter and the Company each received up-front payments of $10.0 million from BioOne. The Companys portion of the up-front payments was being deferred and recognized ratably as development funding over
the development period. The agreement also provides for contingent milestone payments and royalties on future product sales, which would be shared equally by Baxter and the Company. The Company did not recognize any revenue under this agreement
during the three months ended March 31, 2009, or 2008.

Plasma Agreement

In December 2004, Baxter and the Company signed a letter of intent with BioOne to enter into a definitive agreement for commercialization of the INTERCEPT
Blood System for plasma in parts of Asia. Under the letter of intent, the Company received a payment of $3.0 million from BioOne, which was recorded as deferred revenue as of December 31, 2004. A definitive agreement with BioOne for the plasma
system was signed by Baxter and the Company in June 2005, and in December 2005 the Company received additional up-front payments of $2.0 million in cash and $5.0 million in BioOnes equity, both of which were recorded upon receipt as deferred
revenue and recognized over the remaining development period. In December 2006, the Company received a milestone payment from BioOne of $4.5 million in cash and $5.0 million in BioOnes equity, both of which were in recognition of the Company
receipt of a CE mark for the plasma system. The Company evaluates several criteria to determine the fair value of the equity received and to conclude whether or not the facts and circumstances support a fair value for revenue recognition and
investment balance. These criteria include, but



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##### Table of Contents

are not limited to: third-party investor interest and participation in recent equity offerings at current pricing, business outlook of BioOne, and available
financial information. Based on this evaluation, the Company recognized the entire $5.0 million of equity received as revenue in December 2006. Since BioOne is a privately-held Japanese company, it is only obligated to provide the Company with
annual financial information at the end of its fiscal year which ends in May. Therefore, although the Company used the best available information at the time, there was and can be no absolute assurance that facts and circumstances will not change in
the future. The Company did not recognize any revenue under this agreement during the three months ended March 31, 2009, or 2008.

Cooperative
Agreements with the United States Armed Forces

Since February 2001, the Company has received awards under cooperative agreements with
the Army Medical Research Acquisition Activity division of the Department of Defense. The Company received these awards in order to develop its pathogen inactivation technologies for the improved safety and availability of blood that may be used by
the United States Armed Forces for medical transfusions. Under the conditions of the agreements, the Company is conducting research on the inactivation of infectious pathogens in blood, including unusual viruses, bacteria and parasites that are of
concern to the United States Armed Forces. This funding also supports advanced development of the Companys blood safety technologies. The Company recognized $0.4 million and $0.1 million of revenue under these agreements during the three
months ended March 31, 2009 and 2008, respectively. As of March 31, 2009, the Company has received $31.2 million of cash payments from these awards.

Note 12. Segment Information and Geographic Information

At March 31, 2009, and 2008, the Company operated only one
segment, blood safety. The Companys chief executive officer is the chief operating decision maker who evaluates performance based on the net revenues and operating income (loss) of the blood safety segment.

During the three months ended March 31, 2009, and 2008, we had the following significant customers, listed as a percentage of product revenue:



|         |  |      |   |  |      |  
|-------- |  | ---- | - |  | ---- | -
|Customer |  | 2009 |   |  | 2008 |  
|A        |  | 29   | % |  | 15   | %
|B        |  | 26   | % |  | 6    | %
|C        |  | 5    | % |  | 10   | %
|D        |  | 2    | % |  | 24   | %
|E        |  | 0    | % |  | 28   | %

Each of the above customers with at least 10% of product revenue operates in a separate country
outside of the United States. During the three months ended March 31, 2009 and 2008, we also recognized government grants and cooperative agreement revenue which represents 12% and 2% of total revenue, respectively.



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|ITEM 2. | MANAGEMENTS DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
|------- | -------------------------------------------------------------------------------------

This discussion and analysis should be read in conjunction with our condensed consolidated financial statements and the accompanying notes included in
this report and the audited consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended December 31, 2008. Operating results for the three months ended March 31, 2009 are not
necessarily indicative of results that may occur in future periods.

This report contains forward-looking statements that involve
risks and uncertainties. The forward-looking statements are contained principally in the sections entitled Managements Discussion and Analysis of Financial Condition and Results of Operations and Risk Factors. These
statements involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to be materially different from any future results, performances or achievements expressed or implied by the
forward-looking statements. Forward-looking statements include statements about our ability to commercialize and achieve market acceptance of the INTERCEPT Blood Systems, the successful completion of our research, development and clinical programs
our ability to manage cost increases associated with pre-clinical and clinical development for the INTERCEPT Blood Systems, our ability to obtain and maintain regulatory approvals of the INTERCEPT Blood Systems, our ability to protect our
intellectual property and operate our business without infringing upon the intellectual property rights of others and our estimates regarding the sufficiency of our cash resources. In some cases, you can identify forward-looking statements by terms
such as anticipate, will, believe, estimate, expect, plan, and similar expressions intended to identify such forward-looking statements. Forward-looking statements reflect our
current views with respect to future events, are based on assumptions, and are subject to risks and uncertainties. There can be no assurance that these statements will prove to be correct. We discuss many of these risks in this Quarterly Report on
Form 10-Q in greater detail in the section entitled Risk Factors under Part II, Item 1A below. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Also, forward-looking statements
represent our estimates and assumptions only as of the date of this Quarterly Report on Form 10-Q. You should read this Quarterly Report on Form 10-Q and the documents that we incorporate by reference in and have filed as exhibits to this Quarterly
Report on Form 10-Q, completely and with the understanding that our actual future results may be materially different from what we expect. Except as required by law, we assume no obligation to update any forward-looking statements publicly, or to
update the reasons actual results could differ materially from those anticipated in any forward-looking statements, even if new information becomes available in the future.

Overview

Since our inception in 1991, we have devoted substantially all of our efforts and resources
to the research, development, clinical testing and commercialization of blood safety systems and, from 2001 until late 2007, immunotherapies for cancer and infectious disease. With the exception of the financial reporting effects of a non-recurring
gain recognized in 2005, we have been generally unprofitable since inception and, as of March 31, 2009, had an accumulated deficit of approximately $393.3 million. Our INTERCEPT platelet system, or the platelet system, and our
INTERCEPT plasma system, or the plasma system, have received CE marks and are being marketed in Europe, Russia, the Middle East and selected countries in other regions around the world. We have not yet received regulatory approvals for
the platelet and plasma systems in the United States and other countries. The INTERCEPT red blood cell system, or the red blood cell system, is in early stage clinical development.

Our near-term capital requirements are dependent on various factors, including operating costs and working capital investments associated with
commercializing the INTERCEPT Blood System, costs associated with planning and conducting studies and clinical trials of our platelet and red blood cell systems, timing and magnitude of payments under grants from the United States government, and
costs related to creating, maintaining and defending our intellectual property. Our long-term capital requirements will also be dependent on competitive developments and regulatory factors. Until we can generate a sufficient amount of product
revenue and generate positive net cash flows from operations, meeting our long-term capital requirements is in large part subject to access to public and private equity and debt capital markets, as well as to additional collaborative arrangements
with partners or government grants, augmented by cash generated from operations and interest income earned on the investment of our cash balances and short-term investments. We believe that our available cash balances will be sufficient to fund
operations into the first half of 2010, by which time we may need to raise additional capital. We expect to prioritize continued commercialization of the platelet and plasma systems in Europe, Russia, the Middle East and in selected countries in
other regions around the world over pursuit of regulatory approval of the platelet system in the United States and development and commercialization of the red blood cell system. We have begun implementing a restructuring plan to focus our
resources, consolidate facilities and reduce our cost structure. We anticipate activities under the restructuring plan will continue throughout 2009.

We may borrow additional capital from institutional and commercial banking sources to fund future growth on terms that may include restrictive covenants, including covenants that restrict the operation of our
business, liens on assets, high effective interest rates and repayment provisions that reduce cash resources and limit future access to capital markets. To the extent we raise additional capital by issuing equity securities, our stockholders may
experience substantial dilution. To the extent that we raise additional funds through collaboration or partnering arrangements, we may be required to relinquish some of our rights to our technologies or rights to market and sell our products in
certain geographies, or grant licenses on terms that are not favorable to us. Recently, the credit markets and the financial services industry have been experiencing a period of unprecedented turmoil and upheaval characterized by the bankruptcy,



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failure, collapse or sale of various financial institutions and an unprecedented level of intervention from the United States federal government. These
events have generally made equity and debt financing more difficult to obtain. In addition, our independent registered public accountants have indicated that our recurring operating losses raise substantial doubt as to our ability to continue as a
going concern. This opinion may make it more difficult for us to raise funds when needed. As a result of these and other factors, we do not know whether additional capital will be available when needed, or that, if available, we will be able to
obtain additional capital on reasonable terms. If we are unable to raise additional capital due to the recent disruptions to the credit and financial markets in the United States and worldwide or other factors, we will need to curtail planned
development and commercialization activities.

Since February 2006, we have begun to recognize modest product revenue from the sale of our
platelet and plasma systems in Europe, Russia, the Middle East, and certain other countries around the world. Prior to initiating such commercial operations, our primary sources of revenue were milestone payments, development contracts and
collaborative agreements and grants from United States government agencies, including the United States Armed Forces and the National Institutes of Health, or NIH. We must conduct significant research, development, preclinical and clinical
evaluation, commercialization and regulatory compliance activities for our products that, together with anticipated general and administrative expenses, are expected to result in substantial losses at least until after our platelet and plasma
systems gain widespread commercial acceptance in Europe, Russia, the Middle East, and selected countries in other regions around the world. Our ability to achieve a profitable level of operations in the future will depend on our ability to
successfully commercialize and achieve market acceptance of our blood safety products. We may never achieve a profitable level of operations.

Under the agreements with BioOne, we have received milestone payments in the past and may receive additional contingent milestone payments and royalties on future product sales.

We pay royalties to Fenwal on product sales, at rates of 10% of net sales for the platelet system, 3% for the plasma system, 5% for the red blood cell
system, and 6.5% on sales of UVA illuminators. In December 2008, we amended and extended our manufacturing and supply agreement with Fenwal to include Fenwals manufacture of finished disposable kits for the platelet and plasma systems through
December 31, 2013. Under the amended manufacturing and supply agreement, we pay Fenwal a set price per kit, which is established annually plus a fixed surcharge per kit. In addition, at the end of each year, volume driven manufacturing overhead
will be paid or refunded if actual manufacturing volumes are lower or higher, respectively, than the annually estimated production volumes.

We are responsible for the commercialization and ongoing development of the platelet and plasma systems, except in parts of Asia, where BioOne is responsible for such commercialization. Subject to the availability of adequate funding from
partners, government grants, and/or capital markets, we also anticipate continuing our expenditures in support of preclinical and clinical trials and device development of our red blood cell system over the next several years if we can attract
financing from partners, government grants, and/or the capital markets.

In November 2007, we spun-off our immunotherapy business to Anza.
In exchange for contributed tangible and intangible assets, we received Preferred Stock representing an equity interest of approximately 20% of Anzas preferred equity. The terms of sale provided Anza a right to redeem up to 1,000,000 of such
shares for a nominal amount upon the failure to occur of certain circumstances relating to possible research grant funding from the DoD. We were advised informally in February 2009 that, based upon such provision, Anza may seek to redeem 1,000,000
shares held by us. If such shares are redeemed by Anza, we would own fewer shares of Anzas Preferred Stock, reducing our preferred equity interest to approximately 16.0% of Anzas outstanding preferred equity. We are evaluating whether
such clause is applicable in the present circumstances. There is no assurance that the equity will have monetary value at such time we are allowed to sell it or that we will receive any proceeds upon liquidation or sale of Anza. Anza ceased its
operations during the three months ended March 31, 2009.

Because of the risks and uncertainties underlying Anzas business we
have not assigned a value to our ownership interest in Anza on our condensed consolidated balance sheets. We have provided certain transition services to Anza under terms of a transition services agreement under which Anza reimburses us for our
direct costs associated with providing such services. The transition services we are providing to Anza are generally ancillary in nature and do not involve Anzas core business or any scientific research or development. We also sublet 14,800
square feet to Anza under a month-to-month sublease that expired on March 31, 2009.

Through March 31, 2009, in addition to the
product revenues from sales of our platelet and plasma systems, we have recognized revenue from grants and cooperative agreements with the Armed Forces. As a result of selling our immunotherapy business to Anza, previously reported revenue
associated with grants and cooperative agreements with the NIH are reported as a component of loss from discontinued operations for all periods presented.

Critical Accounting Policies and Management Estimates

The preparation of financial statements requires us to make
estimates, assumptions and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates, including those
related to revenue recognition, inventory valuation, accrued liabilities, non-cash stock compensation assumptions, and income taxes. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable
under the circumstances, the results of which form our basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from those estimates under different
assumptions or conditions.



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We believe the following critical accounting policies require us to make significant judgments and
estimates used in the preparation of our financial statements:



| |  |  | Revenue  Revenue is recognized when (i) persuasive evidence of an agreement with the funding party exists; (ii) products and/or services have
been delivered or rendered, respectively; (iii) pricing is fixed or determinable; and (iv) collection is probable.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Revenue related to product sales is generally recognized when we fulfill our obligations for each element of an agreement. For all sales of our INTERCEPT Blood System products, we use a binding purchase order and signed sales contract as
evidence of a written agreement. We sell INTERCEPT Blood System for platelets and plasma directly to blood banks, hospitals, universities, government agencies, as well as to distributors in certain regions. Generally, our contracts with customers do
not provide for open return rights, except within a reasonable time after receipt of goods in the case of defective product. Deliverables and the units of accounting vary according to the provisions of each customer agreement. For revenue
arrangements with multiple elements we evaluate whether the delivered elements have standalone value to the customer, whether the fair value of the undelivered elements is reliably determinable, and whether the delivery of the remaining elements is
probable and within our control. When all of these conditions are met, we recognize the revenue on the delivered elements. If these conditions are not met, we defer revenue until such time as all of the conditions have been met or all of the
elements have been delivered. Consideration received is allocated to elements that are identified as discrete units of accounting based on the relative fair market value method. Freight costs charged to customers are recorded as a component of
revenue and value-added-taxes, or VAT, that we invoice to our customers and remit to governments are recorded on a net basis, which excludes such VAT from product revenue.

Revenue related to the cost reimbursement provisions under development contracts is recognized as the costs on the projects are incurred. We receive
certain United States government grants and contracts that support research in defined research projects. These grants generally provide for reimbursement of approved costs incurred as defined in the various grants. Revenue associated with these
grants is recognized as costs under each grant are incurred.

Revenue related to substantive at-risk milestones specified under development
contracts is recognized as the milestones are achieved. To date, we have not received license fees or milestone payments that are refundable. To the extent that license fees or milestone payments that we have received are subject to future
performance criteria, we recognize revenue ratably over the estimated term of the license or the development period. We have received up-front payments from collaboration agreements which are deferred and recognized over the period during which we
estimate we are likely to have involvement. We have also received equity in two privately held companies in addition to cash as consideration for licensed rights or technologies. We evaluate several criteria to determine the fair value of the equity
received and to conclude whether the facts and circumstances support a fair value for revenue recognition and the investment balance. These criteria include, but are not limited to, third-party investor interest and participation in recent equity
offerings at current pricing, business outlook of the privately held company, and available financial information of the privately held company. The financial information we receive is generally only available on an infrequent basis. Although
management uses the best available information at the time, there can be no absolute assurance that facts and circumstances will not change in the future. Should these facts and circumstances change, they may negatively impact our condensed
consolidated financial statements.



| |  |  | Inventory We own work-in-process inventory for certain components of INTERCEPT disposable kits, finished INTERCEPT disposable kits,
illuminators, and certain replacement parts for our illuminators. Our supply chain for certain of these components, held as work-in-process on our balance sheet, can take over one year to complete production before being utilized in finished
disposable kits. Inventory is recorded at the lower of cost or market value, determined on a first in, first out basis. Our platelet and plasma system kits generally have a two-year shelf life from the date of manufacture. Illuminators and
replacement parts do not have regulated expiration dates. We use significant judgment to analyze and determine if the composition of our inventory is obsolete, slow-moving, or unsalable. Our limited history selling the INTERCEPT Blood System limits
the amount of historical data we have to perform this analysis. Generally, we write-down specifically identified obsolete, slow-moving, or known unsalable inventory using a number of factors including product expiration dates, open and unfulfilled
orders, and sales forecasts.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Accrued expenses  We record accrued liabilities for expenses related to certain contract research activities and development services, including
those related to clinical trials, preclinical safety studies and external laboratory studies, as well as transition services and development activities being performed by third parties. Some of those accrued liabilities are based on estimates
because billings for these activities may not occur on a timely basis consistent with the performance of the services. Specifically, accruals for clinical trials require us to make estimates surrounding costs associated with patients at various
stages of the clinical trial, pass through costs to clinical sites, contract research organization costs including fees, database development, and reporting costs, among others.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Stock-based compensation  We issue stock-based awards to our employees, members of our Board of Directors, members of our Scientific Advisory
Board and certain contractors as strategic, long-term incentives. We recorded stock-based compensation expense for employee awards under Statement of Financial Accounting Standards, or FAS, No. 123R, Accounting for Stock-Based
Compensation (FAS 123R). We determine the grant-date fair value of a stock award using the Black-Scholes option pricing model. We continue to apply the provisions of Emerging Issues Task Force, or EITF, 96-18, Accounting for Equity
Instruments that are Issued to Other than
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| | Employees for Acquiring, or in Conjunctions with Selling, Goods or Services, for our non-employee stock-based awards. Under EITF 96-18, the measurement
date at which the fair value of the stock-based award is measured is equal to the earlier of (i) the date at which a commitment for performance by the grantee to earn the equity instrument is reached or (ii) the date at which the
grantees performance is complete. We recognize stock-based compensation expense for the fair value of the vested portion of the non-employee awards in our condensed consolidated statements of operations.
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The Black-Scholes option pricing model calculates the grant-date fair value using certain variables. These variables are impacted by our stock price,
award exercise behaviors, the risk free interest rate and our expected dividends and many of these variables require us to use significant judgment.

Expected Term.We estimate the expected term of options granted using a variety of factors. Where possible, we estimate the expected term of options granted by analyzing employee exercise and post-vesting
termination behavior. To make this estimation, we analyze the population of options granted by discreet homogeneous groups. For those homogeneous groups where we are unable to obtain sufficient information to estimate the expected term in this
manner, we estimate the expected term of the options granted by taking the average of the vesting term and the contractual term of the option, as illustrated in the Securities and Exchange Commission Staff Accounting Bulletin No. 107 and 110,
Share-Based Payment, or SAB 107 and SAB 110. The expected term of employee stock purchase plan shares is the term of each offering period.

Estimated Forfeiture Rate. We estimate the forfeiture rate of options at the time of grant and revise those estimates in subsequent periods if actual forfeitures differ from those estimates. We use historical
data to estimate pre-vesting option forfeitures and record stock-based compensation expense only for those awards that are expected to vest. We estimate the historic pre-vesting forfeiture rates by groups that possess a degree of homogeneity
regarding average time to vest and expected term. All stock-based payment awards are amortized on a straight-line basis over the requisite service periods of the awards, which are generally the vesting periods.

Estimated Volatility. We estimate the volatility of our common stock by using historical volatility of our common stock. We have used significant
judgment in making these estimates and we will continue to monitor the availability of actively traded options on our common stock. If we determine that sufficient actively traded options on our common stock exist, we may consider a combination of
historical and implied volatility, or solely implied volatility.

Risk-Free Interest Rate. We base the risk-free interest rate that
we use in the option valuation model on United States Treasury zero-coupon issues with remaining terms similar to the expected term on the options.

Expected Dividend. We do not anticipate paying any cash dividends in the foreseeable future and therefore use an expected dividend yield of zero in the option valuation model.

If factors change and we utilize different assumptions in determining the grant-date fair value of stock compensation expense in the future, or if we
utilize a different option pricing model in the future, then those results may differ significantly from what we have recorded in the current period and could materially affect our operating results. There is significant risk that the Black-Scholes
option pricing model and the judgment we have used in ascertaining the variables will yield results that differ materially from the actual values realized upon the exercise, expiration, termination or forfeitures of the awards in the future.
Historical results were utilized in deriving our variables, which may not be indicative of the future.



| |  |  | Income Taxes  Since our inception we have accumulated significant net operating losses and research and development credits that may be used in
future periods to offset future taxable income. We currently estimate that we may not be able to utilize all of our deferred tax assets. In addition, we may not generate future taxable income prior to the expiration of our net operating loss carry
forwards and research and development credits. Timing and significance of any estimated future taxable income is highly subjective and is beyond the control of management due to uncertainties in market conditions, economic environments in which we
operate, and timing of regulatory approval of our products. Financial Accounting Standards Board Interpretation No. 48, Accounting for Uncertainty in Income Taxes, or FIN 48, became effective for us on January 1, 2007. FIN 48
requires derecognition of tax positions that do not have a greater than 50% likelihood of being recognized upon review by a taxing authority having full knowledge of all relevant information. Use of a valuation allowance as described in Financial
Accounting Standard 109, Accounting for Income Taxes, or FAS 109, is not an appropriate substitute for the derecognition of a tax position. We did not have any recorded liabilities for unrecognized tax benefits at March 31, 2009 or
December 31, 2008. We recognize interest accrued and penalties related to unrecognized tax benefits in our income tax expense. To date, we have not recognized any interest and penalties in our statements of operations, nor have we accrued for
or made payments for interest and penalties. The adoption of FIN 48 has not have a significant impact on us. We continue to carry a full valuation allowance on all of our deferred tax assets. Although we believe it more likely than not that a taxing
authority would agree with our current tax positions, there can be no assurance that the tax positions we have taken will be substantiated by a taxing authority if reviewed.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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Results of Operations

Three-Month Periods Ended March 31, 2009, and 2008

Revenue



|                                            |  |                             |       |        |   |       |  |   |        |   |  |     |   
|------------------------------------------- |  | --------------------------- | ----- | ------ | - | ----- |  | - | ------ | - |  | --- | --
|                                            |  | Three monthsended March 31, |       | Change |  
|(in thousands, except percentage)           |  | 2009                        |       | 2008   |  
|Product revenue                             |  | $                           | 3,085 |        | $ | 4,852 |  | $ | (1,767 | ) |  | (36 | )%
|Government grant and cooperative agreements |  |                             | 403   |        |   | 117   |  |   | 286    |   |  | 244 | % 
|                                            |  |                             |       |        |   |       |  |   |        |   |  |     |   
|Total revenue                               |  | $                           | 3,488 |        | $ | 4,969 |  | $ | (1,481 | ) |  | (30 | )%
|                                            |  |                             |       |        |   |       |  |   |        |   |  |     |   

Product revenue decreased $1.8 million to $3.1 million during the three months ended
March 31, 2009, compared to $4.9 million during the comparable period in the prior year, when $1.2 million of previously deferred product revenue was recognized. The decrease in product revenue was largely due to the lack of illuminator sales
during the first quarter of 2009 compared to the first quarter of 2008. However, sales of disposable platelet and plasma system kits directly to existing customers continued growing due to increased market penetration and customer adoption of the
INTERCEPT Blood System in Europe and the Middle East. We expect product revenues for both the platelet and plasma systems will continue to increase in future periods as the INTERCEPT Blood System gains market acceptance in geographies where
commercialization efforts are underway. These quarterly results may not be indicative of INTERCEPT Blood System revenue in the future.

Revenue from government grants and cooperative agreements increased $0.3 million to $0.4 million for the three months ended March 31, 2009, from $0.1 million for the comparable period in 2008. The increase was due primarily to the
increased awards from the Armed Forces for research activities for our INTERCEPT Blood System programs.

Cost of Product Revenue

Our cost of product sales consists of the cost of the INTERCEPT Blood System inventory sold, royalties payable to Fenwal for product sales, certain order fulfillment
costs and reserves for obsolete, slow-moving and scrapped inventory. Inventory is accounted for on a first-in, first-out basis.



|                                  |  |                             |       |        |       |  |     |  |    |  
|--------------------------------- |  | --------------------------- | ----- | ------ | ----- |  | --- |  | -- | -
|                                  |  | Three monthsended March 31, |       | Change |      
|(in thousands, except percentage) |  | 2009                        |       | 2008   |      
|Cost of product revenue           |  | $                           | 2,094 |        | 1,714 |  | 380 |  | 22 | %
|                                  |  |                             |       |        |       |  |     |  |    |  

Cost of product revenue increased $0.4 million, to $2.1 million during the three months ended
March 31, 2009, from $1.7 million during the comparable period in the prior year. The increase in cost of revenue was due to a higher number of platelet kits sold, increased provisions for obsolete slow-moving and scrapped inventory, offset by
lower illuminator sales during the three months ended March 31, 2009 compared to March 31, 2008. We anticipate our cost of product revenue to increase in the future as a result of increased product sale volume.

Our realized gross margins on product sales were 32% during the three months ended March 31, 2009, down from 64% during the three months ended
March 31, 2008. The changes in our gross margins are affected by various factors, including manufacturing and supply chain costs, the mix of product sold, and the mix of customers to which product is sold. Generally, we offer our distributors
tiered volume discounts of varying magnitudes, depending on their purchase commitments, which depending on sales volumes to those distributors receiving tiered volume discounts, may impact our gross margins.

Research and Development Expenses

Our
research and development expenses include salaries and related expenses for our scientific personnel, non-cash stock based compensation, payments to consultants, costs to prepare and conduct preclinical and clinical trials, third-party costs for
development activities, certain regulatory costs, costs for licensed technologies, costs associated with our infrastructure, and laboratory chemicals and supplies.



|                                  |  |                             |       |        |   |       |  |   |      |   |  |     |   
|--------------------------------- |  | --------------------------- | ----- | ------ | - | ----- |  | - | ---- | - |  | --- | --
|                                  |  | Three monthsended March 31, |       | Change |  
|(in thousands, except percentage) |  | 2009                        |       | 2008   |  
|Research and development expenses |  | $                           | 2,012 |        | $ | 2,784 |  | $ | (772 | ) |  | (28 | )%

Research and development expenses decreased $0.8 million to $2.0 million for the three months
ended March 31, 2009, from $2.8 million for the comparable period in 2008. Of the total research and development costs incurred, non-cash stock-based compensation represented $0.2 million for the three months ended March 31, 2009 and 2008.
The decrease in our research and development expenses during the three months ended March 31, 2009, compared to 2008 is a result of less development activities regarding our plasma system and lower clinical trial costs associated with our red
blood cell system.



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We anticipate our research and development spending will gradually decline as we implement our
restructuring plan and focus available resources on commercialization of the INTERCEPT Blood System in Europe over pursuit of regulatory approval of the platelet system in the United States and development and commercialization of the red blood cell
system. However, research and development spending may at times increase to the extent that we are able to find sources of funding to further those efforts. Due to the inherent uncertainties and risks associated with developing biomedical products,
including, but not limited to, intense and changing government regulation, uncertainty of future pre-clinical and clinical trial results and uncertainty associated with manufacturing, it is not possible to reasonably estimate the costs to complete
these research and development projects. We face numerous risks and uncertainties associated with the successful completion of our research and development projects; see Risk Factors in Part II, Item 1A below.



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Selling, General, and Administrative Expenses

Selling, general, and administrative expenses include salaries and related expenses for administrative personnel, non-cash stock based compensations,
expenses for our commercialization efforts in Europe, expenses for accounting, tax, and internal control, legal and facility related expenses, and insurance premiums.



|                                     |  |                             |       |        |   |       |  |   |        |   |  |     |   
|------------------------------------ |  | --------------------------- | ----- | ------ | - | ----- |  | - | ------ | - |  | --- | --
|                                     |  | Three monthsended March 31, |       | Change |  
|(in thousands, except percentage)    |  | 2009                        |       | 2008   |  
|Selling, general, and administrative |  | $                           | 6,101 |        | $ | 7,101 |  | $ | (1,000 | ) |  | (14 | )%

Selling, general, and administrative expenses decreased $1.0 million to $6.1 million for the three
months ended March 31, 2009, from $7.1 million for the comparable period in 2008. Of the $6.1 million and $7.1 million of selling, general and administrative expenses recognized during the three months ended March 31, 2009 and 2008, $0.4
million was due to non-cash stock-based compensation recognized during the periods. Overall, the decrease in selling, general and administrative from the three months ended March 31, 2008, was primarily due to decreased personnel costs and
marginally lower marketing and public affairs costs. We anticipate that selling, general, and administrative expenses will continue to decline in the near term, as we implement our restructuring plan and focus available resources on
commercialization of the INTERCEPT Blood System in Europe.

Restructuring

Restructuring costs during the three months ended March 31, 2009 include one-time termination benefits which include severance, benefits and
outplacement assistance for workforce reduction.



|                                  |  |                             |     |        |   |   |  |   |     |  |    
|--------------------------------- |  | --------------------------- | --- | ------ | - | - |  | - | --- |  | ---
|                                  |  | Three monthsended March 31, |     | Change
|(in thousands, except percentage) |  | 2009                        |     | 2008   |  
|Restructuring                     |  | $                           | 712 |        | $ |  |  | $ | 712 |  | N/A

During the three months ended March 31, 2009, pursuant to the Board of Directors
approval, we began implementing a plan to focus resources on commercializing the INTERCEPT Blood System in Europe, to consolidate facilities, and to reduce our cost structure. During the three months ended March 31, 2009, we incurred costs for
one-time termination benefits for employee positions that were eliminated under the restructuring plan. We also plan to consolidate facilities and incur certain other costs associated with the restructuring plan. We anticipate continuing to
implement our restructuring plan and incurring associated costs through the year ended December 31, 2009. Most costs accrued as one-time termination benefits as of March 31, 2009 will be paid during the three months ended June 30,
2009, however certain of these costs will be paid over an extended period of time, into 2010.

Interest Income and Other, Net

Interest income and other, net consists of interest earned from our short-term investment portfolio, foreign exchange gain (loss), and other non-operating
gains and losses.



|                                  |  |                             |    |        |   |     |  |   |      |   |  |     |   
|--------------------------------- |  | --------------------------- | -- | ------ | - | --- |  | - | ---- | - |  | --- | --
|                                  |  | Three monthsended March 31, |    | Change |  
|(in thousands, except percentage) |  | 2009                        |    | 2008   |  
|Interest income and other, net    |  | $                           | 34 |        | $ | 690 |  | $ | (656 | ) |  | (95 | )%

Net interest income and other, net decreased $0.7 million from $34,000 for the three months ended
March 31, 2009, compared to $0.7 million during the comparable period in 2008. The decrease was primarily due to the decline in interest income resulting from lower cash and short-term investment balances and lower yields on those balances, as
well as unfavorable foreign currency variations between the Euro and U.S. dollar, our functional currency. These decreases were partially offset by realized gains which we recognized upon maturity of certain investments in our portfolio. Interest
income was $0.1 million and $0.6 million for the three months ending March 31, 2009 and 2008, respectively. The decrease in interest income was primarily due to lower cash and investment balances maintained during the three months ended
March 31, 2009, compared to the comparable period in 2008.

We expect to earn interest income at market rates in proportion to the
marketable securities balances we maintain. We generally hold such investments until such time as we liquidate them to meet an operating cash need.



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Liquidity and Capital Resources

Our sources of capital to date have primarily consisted of public offerings and private placements of equity securities, the loan from Baxter Capital, payments received under our agreements with Baxter, BioOne and
others, United States government grants and cooperative agreements, and, to a lesser degree and more recently, contribution from product sales net of expenses and interest income.

At March 31, 2009, we had cash, cash equivalents and short-term investments of $15.4 million. Net cash used in operating activities was $7.0 million
for the three months ended March 31, 2009, compared to $10.7 million during the comparable period in 2008. The decrease in net cash used in operating activities was primarily due to changes in our operating assets and liabilities, notably
decreases in our accrued expenses, inventory balances, and in our accounts receivable balances. Net cash provided by investing activities during the three months ended March 31, 2009, was $3.6 million compared to $12.1 million during the
comparable period in 2008. The decrease was primarily due to fewer purchases of short-term investments and maturities of short-term investments. Currently, as our investments mature, we have not reinvested the proceeds into similar investments, but
have generally invested the proceeds in money market funds with original maturities less than 90 days. Net cash provided by financing activities during the three months ended March 31, 2009, was $43,000, compared to cash provided by financing
activities of $0.7 million for the same period in 2008. The decrease in cash provided from financing activities in the three months ended March 31, 2009 was primarily due to less cash received from the exercise of stock options. Working capital
decreased to $22.6 million at March 31, 2009, from $29.1 million at December 31, 2008, primarily due to lower cash, cash equivalents and short-term investments, partially offset by decreased liability balances.

Our near-term capital requirements are dependent on various factors, including operating costs and capital investments associated with commercializing
the INTERCEPT Blood System, costs associated with planning and conducting clinical trials of our red blood cell system, timing and magnitude of payments under grants from the United States government, and costs related to creating, maintaining and
defending our intellectual property. Our long-term capital requirements will also be dependent on competitive developments and regulatory factors. Until we are able to generate a sufficient amount of product revenue and generate positive cash flows
from operations, meeting our long-term capital requirements is in large part subject to access to public and private equity and debt capital markets, as well as to additional collaborative arrangements with partners or government grants, augmented
by cash generated from operations and interest income earned on the investment of our cash balances and short-term investments. Although our independent registered public accountants have indicated a substantial doubt as to our ability to continue
as a going concern, we believe that our available cash balances will be sufficient to meet our capital requirements into the first half of 2010, by which time we may need to raise additional capital. We have based this estimate on assumptions that
may prove to be wrong, and we could utilize our available capital resources sooner than we currently expect. We expect to prioritize continued commercialization of the platelet and plasma systems in Europe, Russia, the Middle East and in selected
countries in other regions around the world, over the pursuit of regulatory approval of the platelet system in the United States and development and commercialization of the red blood cell system. We expect to continue efforts to establish an
acceptable pathway for U.S. regulatory approval of the platelet system. We also expect to complete a Phase I clinical trial of the INTERCEPT red blood cell system by mid-2009. Further efforts to gain U.S. regulatory approval of the platelet system
and significant development of the red blood cell system are dependent upon securing adequate additional funding to support such activities. Because of the numerous risks and uncertainties associated with the commercialization of the platelet and
plasma systems, the time and cost involved in obtaining regulatory approval and subsequent launch of our platelet and plasma systems in the United States, and the development of the red blood cell system and other development activities, including
risks and uncertainties that could impact the rate of progress of our development activities, we are unable to estimate with certainty the amounts of increased capital outlays and operating expenditures that may ultimately be associated with our
current and anticipated clinical trials and other research and development activities.

We may borrow additional capital from institutional
and commercial banking sources to fund future growth on terms that may include restrictive covenants, including covenants that restrict the operation of our business, liens on assets, high effective interest rates and repayment provisions that
reduce cash resources and limit future access to capital markets. To the extent we raise additional capital by issuing equity securities, our stockholders may experience substantial dilution. To the extent that we raise additional funds through
collaboration or partnering arrangements, we may be required to relinquish some of our rights to our technologies or product, or grant licenses on terms that are not favorable to us. Recently, the credit markets and the financial services industry
have been experiencing a period of unprecedented turmoil and upheaval characterized by the bankruptcy, failure, collapse or sale of various financial institutions and an unprecedented level of intervention from the United States federal government.
As a result of these and other factors, we do not know whether additional capital will be available when needed, or that, if available, we will be able to obtain additional capital on terms reasonable to us or our stockholders. If we are unable to
raise additional capital due to the recent disruptions to the credit and financial markets in the United States and worldwide or other factors, we will need to curtail planned development activities and commercialization activities.

Historically, we had received significant awards in funding under cooperative agreements with the Department of Defense, or DoD, for the INTERCEPT Blood
system. We also received funding under grants from the NIH, largely in support of the immunotherapy business that we spun off in late 2007. Further funding awarded under Federal grants and cooperative agreements for the INTERCEPT Blood Systems may
decline when compared to historic levels. Any such funding is subject to the authorization of funds and approval of our research plans by various organizations within the federal government, including the United States Congress. The general economic
environment, coupled with tight Federal budgets, has led to a general decline in the amount of government funding. Additionally, we no longer are deemed to be a small business for purposes of being eligible for certain grants administered by the NIH
and regulated by Small Business Administration. Historically, a significant portion of our grant revenue came from awards surrounding our former immunotherapy business. If we are unable to obtain Federal grant and cooperative agreement funding for
future blood safety activities at levels similar to past funding, we may need to reduce our operating expenses, which would delay progress in some of our development programs.



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In late October 2008 we filed a shelf registration statement on Form S-3 to offer and sell up to $200.0
million of common stock, preferred stock, warrants, and/or debt securities. This shelf registration statement was declared effective by the SEC in December 2008. However, our ability to sell shares under this shelf registration statement may be
limited due to applicable rules of the Securities Act. Consequently, any offering of common stock, preferred stock, warrants, and/or debt securities will need to be accompanied by a registration statement specific to the securities offered therein.



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Commitments and Off-Balance Sheet Arrangements

Commitments

Our commitments are as follows (in thousands):



|                              |  |       |       |                 |   |           |  |           |       |              |   |       |  |   |  
|----------------------------- |  | ----- | ----- | --------------- | - | --------- |  | --------- | ----- | ------------ | - | ----- |  | - | -
|                              |  | Total |       | Less than1 year |   | 1-3 years |  | 4-5 years |       | After 5years
|Minimum purchase requirements |  | $     | 2,325 |                 | $ | 1,053     |  | $         | 807   |              | $ | 465   |  | $ | 
|Operating leases              |  |       | 3,827 |                 |   | 1,338     |  |           | 1,578 |              |   | 911   |  |   | 
|Other commitment              |  |       | 80    |                 |   | 21        |  |           | 42    |              |   | 17    |  |   | 
|                              |  |       |       |                 |   |           |  |           |       |              |   |       |  |   |  
|Total contractual obligations |  | $     | 6,232 |                 | $ | 2,412     |  |           | 2,427 |              |   | 1,393 |  |   | 
|                              |  |       |       |                 |   |           |  |           |       |              |   |       |  |   |  

Our minimum purchase commitments include certain components of our INTERCEPT blood safety system
that we purchase from third party manufacturers and supplied to Fenwal for use in manufacturing finished disposable kits.

Operating Leases

We lease our office facilities and certain equipment under non-cancelable operating leases with initial terms in excess of one year
that require us to pay operating costs, property taxes, insurance and maintenance. These facility leases generally contain renewal options and provisions adjusting the lease payments if those renewal options are exercised. Our facility leases
qualify as operating leases under FAS No. 13, Accounting for Leases and as such, are not included on our balance sheet.

Royalties

We are obligated to pay royalties on certain INTERCEPT product sales based on a percentage of net sales generated. The royalty rates vary
by product, with rates of 10% of net sales for the platelet system, 3% for the plasma system, 5% for the red blood cell system, and 6.5% for UVA illuminators. As future product sales cannot be estimated, this royalty obligation is not included in
the table above.

Credit Facility

In
June 2008, we entered into a senior secured revolving credit facility with Wells Fargo Bank, N.A., or the Facility, which allows us to borrow up to $10.0 million to be used for working capital and general operating needs. The initial term of the
Facility is one year, if not extended. In December 2008 we amended the terms of the Facility. Interest on borrowings under the Facility accrues on a fixed rate equal to LIBOR plus three and one half percent (3.5%) for borrowings in excess of
$0.5 million for one, two, three, or six months. The Facility is secured by all of our assets, excluding intellectual property. The Facility also contains certain customary financial and non-financial conditions, as well as certain specific
financial covenants, including covenants that require us to maintain certain minimum cash balances and incur maximum net operating losses in any given quarter during which the Facility is in place. Currently, we are unable to borrow under the
Facility until such time as we have cured conditions that gave rise to a default under these financial covenants. At March 31, 2009, no amount was outstanding under the Facility.

Financial Instruments

We maintain an investment portfolio of various issuers, types and maturities.
These securities are generally classified as available-for-sale and, consequently, are recorded on the balance sheet at fair value with unrealized gains or losses reported as a separate component of stockholders equity. Our investment policy
is to manage our marketable securities portfolio to preserve principal and liquidity while maximizing the return on the investment portfolio to assist us in funding our operations. Unrealized gains at March 31, 2009, and December 31, 2008,
totaled $0.1 million and $0.2 million respectively.

We invest our cash, cash equivalents and short-term investments in a variety of
financial instruments, consisting primarily of high credit, high liquidity United States government agency securities, asset-backed securities, corporate debt securities, money market funds and interest-bearing accounts with financial institutions.
We maintain portfolio liquidity by ensuring that the securities have active secondary or resale markets. Certain of the investments in our portfolio are subject to general market risk and more specifically, the United States mortgage industry and
financial institutions. As a result, we recognized other than temporary impairments for certain investments in our portfolio totaling $0.1 million during the three months ended March 31, 2008. There were no other-than-temporary impairments
recognized for the three months ended March 31, 2009. The current global economic crisis has had, and may continue to have, a negative impact on the market values of the investments in our investment portfolio. There can be no assurance that
the markets for these securities will not deteriorate further or that the institutions that these investments are with will be able to meet their debt obligations at the time we may need to liquidate such investments or until such time as the
investments mature.



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Off-Balance Sheet Arrangements

As of March 31, 2009, we had no contractual arrangements that create potential material risk for us and are not recognized in our condensed consolidated balance sheets.



|ITEM 3. | QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
|------- | ----------------------------------------------------------

During the three months ended March 31, 2009, there were no material changes to our market risk disclosures as set forth in Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk, of our Annual
Report on Form 10-K for the year ended December 31, 2008.



|ITEM 4. | CONTROLS AND PROCEDURES
|------- | -----------------------

Evaluation of
Disclosure Controls and Procedures. Our chief executive officer and chief financial officer are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the
Securities Exchange Act of 1934, as amended) for our company. Based on their evaluation of our disclosure controls and procedures as of the end of the period covered by this report, our chief executive officer and our chief financial officer have
concluded that our disclosure controls and procedures were effective as of March 31, 2009.

Changes in Internal Control Over
Financial Reporting.There were no changes in our internal control over financial reporting that occurred during our fiscal quarter ended March 31, 2009 that have materially affected, or are reasonably likely to materially affect, our
internal control over financial reporting.

Limitations on the Effectiveness of Controls. A control system, no matter how well
conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the controls are met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all
control issues, if any, within a company have been detected. Accordingly, our disclosure controls and procedures are designed to provide reasonable assurance, not absolute assurance, that the objectives of our disclosure control system are met and,
as set forth above, our chief executive officer and chief financial officer have concluded, that based on their evaluation as of the end of the period covered by this report, that our disclosure controls and procedures were sufficiently effective to
provide reasonable assurance that the objective of our disclosure control system were met.

PART II: OTHER INFORMATION



|ITEM 1. | LEGAL PROCEEDINGS
|------- | -----------------

None.



|ITEM 1A. | RISK FACTORS
|-------- | ------------

Risk Factors

In evaluating our business, you should carefully consider the following risks, as well as the other information contained in this Quarterly Report on
Form 10-Q. These risk factors could cause our actual results to differ materially from those contained in forward-looking statements we have made in this Quarterly Report on Form 10-Q and those we may make from time to time. If any of the following
risks actually occurs, our business, financial condition and operating results could be harmed. The risks and uncertainties described below are not the only ones facing us. Additional risks and uncertainties not presently known to us, or that we
currently see as immaterial, may also harm our business.

If we fail to obtain the capital necessary to fund our future
operations, we will need to curtail planned development or sales and commercialization activities.

Our near-term capital
requirements are dependent on various factors, including operating costs and working capital investments associated with commercializing the INTERCEPT Blood System, costs associated with planning and conducting studies and clinical trials of our
platelet and red blood cell systems, timing and magnitude of payments under grants from the United States government, and costs related to creating, maintaining and defending our intellectual property. Our long-term capital requirements will also be
dependent on competitive developments and regulatory factors. Until we are able to generate a sufficient amount of product revenue and generate positive net cash flows from operations, meeting our long-term capital requirements is in large part
subject to access to public and private equity and debt capital markets, as well as to additional collaborative arrangements with partners or government grants, augmented by cash generated from operations and interest income earned on the investment
of our cash balances and short-term investments. We believe that we will be able to make reductions in our operating expense and working capital, which, together with our expected revenues, will result in sufficient capital to fund operations into
the first half of 2010. If our assumptions prove to be incorrect, we could consume our available capital resources sooner than we currently expect.



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We may borrow additional capital from institutional and commercial banking sources to fund future growth
on terms that may include restrictive covenants, including covenants that restrict the operation of our business, liens on assets, high effective interest rates and repayment provisions that reduce cash resources and limit future access to capital
markets. To the extent we raise additional capital by issuing equity securities, our stockholders may experience substantial dilution. To the extent that we raise additional funds through collaboration or partnering arrangements, we may be required
to relinquish some of our rights to our technologies or rights to market and sell our products in certain geographies, or grant licenses on terms that are not favorable to us. Our ability to raise additional capital may be adversely impacted by
current economic conditions, including the effects of the recent disruptions to the credit and financial markets in the United States and worldwide. In addition, our independent registered public accountants have indicated that our recurring
operating losses raise substantial doubt as to our ability to continue as a going concern. This opinion may make it more difficult for us to raise funds when needed. As a result of these and other factors, we do not know whether additional capital
will be available when needed, or that, if available, we will be able to obtain additional capital on terms favorable to us or our stockholders. If we are unable to raise additional capital due to the recent disruptions to the credit and financial
markets in the United States and worldwide or other factors, we will need to curtail planned development and commercialization activities. We expect to prioritize continued commercialization of the platelet and plasma systems in Europe, Russia, the
Middle East and in selected countries in other regions around the world over pursuit of regulatory approval of the platelet system in the United States and development and commercialization of the red blood cell system.

Historically, we had received significant awards in funding under cooperative agreements with the DoD. We also received funding under grants from the
National Institutes of Health, or NIH, largely in support of the immunotherapy business that we spun-off in late 2007. Further funding awarded under Federal grants and cooperative agreements for the INTERCEPT Blood Systems may decline when compared
to historic levels. It is subject to the authorization of funds and approval of our research plans by various organizations within the federal government, including the United States Congress. The general economic environment, coupled with tight
Federal budgets, has led to a general decline in the amount of government funding. Additionally, we no longer are deemed to be a small business for purposes of being eligible for certain grants administered by the NIH and regulated by Small Business
Administration. Historically, a significant portion of our grant revenue came from awards surrounding our former immunotherapy business. If we are unable to obtain Federal grant and cooperative agreement funding for future research and development
activities at levels similar to past funding, we may need to reduce our operating expenses, which would delay progress in some of our development programs.

Our independent registered public accountants have indicated that our recurring operating losses raise substantial doubt as to our ability to continue as a going concern.

Our audited financial statements for the fiscal year ended December 31, 2008, were prepared on a going concern basis in accordance with United States
generally accepted accounting principles, or GAAP. The going concern basis of presentation assumes that we will continue in operation for the foreseeable future and will be able to realize our assets and discharge our liabilities and commitments in
the normal course of business. However, our independent registered public accountants have indicated that our recurring operating losses raise substantial doubt as to our ability to continue as a going concern. We may be forced to reduce our
operating expenses and raise additional funds to meet our working capital needs, principally through the additional sales of our securities or debt financings. However, we cannot guarantee that will be able to obtain sufficient additional funds when
needed or that such funds, if available, will be obtainable on terms satisfactory to us. In the event that these plans cannot be effectively realized, there can be no assurance that we will be able to continue as a going concern.

Prospective and existing customers may not adopt or may cease using the INTERCEPT Blood System due to our independent registered public accountants
opinion which expressed doubt about our ability to continue as a going concern. Should this occur, it may in turn affect market acceptance and retention of customers.

Our declining creditworthiness may make us unable to obtain additional funds through debt financings, which will impair our ability to continue as a going concern

Our lack of sufficient revenues to meet our working capital needs has caused our creditworthiness to decline. As a result, we may be unable to raise
additional funds through debt financings or, if we are able to raise such funds, we may not be able to do so on terms satisfactory to us. If we fail to generate operating income or raise additional funds through sales of our securities or debt
financings, we may not be able to continue as a going concern.

The restructuring of our operations could result in management
distractions, operational disruptions and other difficulties.

In March 2009, our Board of Directors committed to a restructuring
plan that included the dismissal of 31 employees, or approximately 30% of our workforce. Employees whose positions were eliminated in connection with this reduction may seek future employment with our competitors. Although all employees are required
to sign a confidentiality agreement with us at the time of hire, we cannot assure you that the confidential nature of our proprietary information will be maintained in the course of such future employment. In addition, our ongoing restructuring
efforts could divert the attention of our management away from our operations and harm our reputation. We cannot assure you that we will not undertake additional workforce reductions, that any of our restructuring efforts will be successful, or that
we will be able to realize the cost savings and other anticipated benefits from our previous or future restructuring plans. In addition, if we continue to reduce our workforce, it may adversely impact our ability to continue our commercialization
efforts with respect to the INTERCEPT Blood System in Europe or retain key employees.



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We have only a limited operating history, and we expect to continue to generate losses.

We may never achieve a profitable level of operations. Our development and selling, general, and administrative expenses have resulted in
substantial losses each year since our inception with the exception of the year ended December 31, 2005. At March 31, 2009, we had an accumulated deficit of approximately $393.3 million. Except for sales of the platelet and plasma systems,
we have not received significant revenue from product revenue. The platelet and plasma systems are not yet approved in the United States or in many other countries around the world. The red blood cell system is in early stage clinical development
and may never emerge from the clinical development stage as a marketed product. We may be required to reduce the sales price for our products in order to make our products economically attractive to our customers and to governmental and private
payors, which would reduce and may eliminate our gross profit on sales. Pricing levels may differ widely from country to country, depending on economic, social and industry practices specific to each country. At our present low unit sales levels of
the platelet and plasma systems, our costs to manufacture, distribute, market, sell, support and administer the systems are in excess of revenue. We may be unable to increase sales to a level sufficient to generate profit contribution. Because the
contracts with large, public-sector customers, such as the EFS in France, for the INTERCEPT Blood System may not be confidential due to the public tender process, their terms may set contractual precedents that would not be acceptable to us if
applied to contracts with our other customers. Historically, we received substantially all of our revenue from our agreements with our development partners and from federal research grants and cooperative agreements and were required to conduct
significant research, development, clinical testing and regulatory compliance activities for each of these products. Contribution from product sales is unlikely to exceed the costs we incur in research, development, and commercialization of the
INTERCEPT Blood System for the foreseeable future. We expect our losses to continue at least until the INTERCEPT Blood System is commercialized more broadly and achieves more significant market acceptance. To the extent that we are able to secure
funding from partners or government agencies for the red blood cell system, costs of developing and testing the red blood cell system in later stage human clinical trials would extend the period during which we expect to operate at a loss.

Our investment portfolio may become impaired by further deterioration of the capital markets.

Our cash equivalent and short-term investment portfolio as of March 31, 2009, consisted primarily of high credit, high liquidity United States
government agency securities, asset backed securities, corporate debt securities, money market funds and interest-bearing accounts with financial institutions. We follow an established investment policy and set of guidelines to monitor, manage and
limit our exposure to interest rate and credit risk.

As a result of current adverse financial market conditions, investments in some
financial instruments, such as structured investment vehicles, sub-prime mortgage-backed securities, auction rate securities and collateralized debt obligations, may pose risks arising from liquidity and credit concerns. We have limited holdings of
these investments in our portfolio; however, the current disruptions in the credit and financial markets have negatively affected investments in many industries, including those in which we invest. During the three months ended
March 31, 2008, we recognized other-than-temporary impairments for certain investments in our portfolio totaling $0.1 million. We did not recognize any other-than-temporary impairments on our investment portfolio during the three months
ended March 31, 2009. The current global economic crisis has had, and may continue to have, a negative impact on the market values of the investments in our investment portfolio. We cannot predict future market conditions or market liquidity
and there can be no assurance that the markets for these securities will not deteriorate further or that the institutions that these investments are with will be able to meet their debt obligations at the time we may need to liquidate such
investments or until such time as the investments mature.

The INTERCEPT Blood System may not achieve broad market acceptance.

We may encounter governmental and blood banking community resistance to commercial adoption for any or all of our products. Some potential customers may
await further safety information or additional studies before choosing whether to adopt our products. In addition to blood banks, our direct customers, we must also address issues and concerns from broad constituencies involved in the healthcare
system, from patients who may ultimately benefit from INTERCEPT-treated blood components, to transfusing physicians, hospitals, private and public sector payors, regulatory bodies and public health authorities. Any one of these constituencies may be
able to delay or block adoption of the INTERCEPT Blood System. We may be unable to adequately demonstrate to these constituencies that the INTERCEPT Blood System is safe, efficacious and cost effective.

For logistical and financial reasons, the transfusion industry has not always integrated new technologies into its processes, even those with the
potential to improve the safety of the blood supply, such as the INTERCEPT Blood System. Our products may require significant changes to our potential customers blood component collection methods, space and staffing requirements and potential
customers may not believe that the benefits of using the INTERCEPT Blood System justify their additional cost. There is some loss of platelets as a result of our pathogen inactivation process. If the loss of platelets leads to increased costs, or
our process requires changes in blood center or clinical regimens, customers may not adopt our platelet system. Certain studies have indicated that transfusion of conventionally prepared platelets may yield higher post-transfusion platelet counts
(according to a measurement called corrected count increment) than transfusion of INTERCEPT-treated platelets. While studies also demonstrate that INTERCEPT-treated platelets retain therapeutic function comparable to conventional
platelets, customers may choose not to adopt our platelet system due to considerations relating to corrected count increment. Our products do not inactivate all known pathogens, and the inability of our systems to inactivate certain pathogens,
including prions, may limit their acceptance. In addition, our products may not demonstrate economic value sufficient to offset their price, imposing a financial burden on the healthcare system that may limit market acceptance. We may need to
develop new product configurations to address market needs, which may be technically challenging, expensive and negatively affect potential contribution from product sales. If customers experience operational or technical problems with the use of
INTERCEPT Blood System products, market acceptance may be reduced. For example, if adverse events arise from incomplete inactivation of pathogens, improper processing or user error, or if testing of INTERCEPT-treated blood samples fails to reliably
confirm pathogen inactivation, whether or not directly attributable to a shortcoming of the INTERCEPT Blood System, customers may refrain from purchasing the products.



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Market acceptance of our products may also be affected by blood center budgets and the availability of
reimbursement from governments, managed care payors, such as insurance companies, or other third parties. In many cases, due to the structure of the blood products industry, we will have little control over budget and reimbursement discussions,
which generally occur between blood centers and national or regional ministries of health and private payors. Even if a particular blood center is prepared to adopt the INTERCEPT Blood System, its hospital customers may not accept, or may not have
the budget to purchase, INTERCEPT-treated blood products. It is difficult to predict the reimbursement status of newly approved, novel medical device products. In certain foreign markets, governments have issued regulations relating to the pricing
and profitability of medical products and medical products companies. There also have been proposals in the United States, at both the Federal and state government level, to implement similar controls. The widespread adoption of managed care in the
United States has also placed downward pressure on the pricing of medical products. These pressures can be expected to continue and may limit the prices we can obtain for our products.

Product revenue in Europe and other regions may be negatively affected because we do not have FDA approval for any of our products. In addition, failure
to gain approval or achieve widespread product adoption in key European countries for reasons within and outside our control may limit adoption in other countries. If the INTERCEPT Blood System products fail to achieve market acceptance, we may
never become profitable.

The market for the INTERCEPT Blood System is highly concentrated with few customers, including often-dominant
regional or national blood collection entities. Even if our products receive regulatory approval and reimbursement is available, failure to properly market, promote, distribute, price or sell our products to any of these large customers could
significantly diminish potential product revenue in those geographies. The market for our pathogen inactivation systems in the United States is highly concentrated, dominated by a small number of blood collection organizations. In many countries in
Western Europe and in Japan, various national blood transfusion services or Red Cross organizations collect, store and distribute virtually all of their respective nations blood and blood components supply. In Europe, the largest markets for
our products are in England, Germany and France. Decisions on product adoption in England are centralized with the National Blood Service. In Germany, decisions on product adoption and subsequent reimbursement are expected to be on a regional or
even blood center-by-blood center basis, but depend on both local and centralized regulatory approval from the Paul Ehrlich Institute, or PEI. Product characteristics relating to platelet dose of INTERCEPT-treated platelets that have received
marketing authorization from the PEI may be incompatible with market requirements. While INTERCEPT-treated platelets and plasma have received in-country regulatory approval and reimbursement rates have been established in France, adoption throughout
France has been delayed. Blood center economics in certain European countries, including Germany and the United Kingdom, have required that we develop and gain CE mark approval for disposable kit configurations of the platelet system that treat
larger volumes of platelets, which would serve to reduce the number of kits we might sell to address market demand in those countries, even though our selling price and margin might be higher on such disposable kit configurations. The Japanese Red
Cross controls a significant majority of blood transfusions in Japan and exerts a high degree of influence on the adoption and use of blood safety measures in Japan. The Japanese Red Cross has been reviewing preclinical and clinical data on pathogen
inactivation of blood over a number of years and has yet to make a formal determination to adopt the INTERCEPT Blood System or any other competitive approach. If approvals are not obtained to market our products in these countries, or if the
products are not adopted in these countries, our potential product revenue will be significantly decreased.

Our products, blood products treated
with the INTERCEPT Blood System and we are subject to extensive regulation by domestic and foreign authorities. If our preclinical and clinical data are not considered sufficient by regulatory authorities to grant marketing approval, we will be
unable to commercialize our products and generate revenue. Our red blood cell system requires extensive additional testing and development.

Our products, both those sold commercially and those under development, are subject to extensive and rigorous regulation by local, state and federal regulatory authorities in the United States and by foreign regulatory bodies. These
regulations are wide-ranging and govern, among other things:



| |  |  | development;
| | - |  | ------------



| |  |  | testing;
| | - |  | --------



| |  |  | manufacturing;
| | - |  | --------------



| |  |  | labeling;
| | - |  | ---------



| |  |  | storage;
| | - |  | --------



| |  |  | pre-market clearance or approval;
| | - |  | ---------------------------------



| |  |  | sales and distribution;
| | - |  | -----------------------



| |  |  | use standards and documentation;
| | - |  | --------------------------------



| |  |  | post-launch surveillance;
| | - |  | -------------------------



| |  |  | quality;
| | - |  | --------



| |  |  | advertising and promotion; and
| | - |  | ------------------------------



| |  |  | reimbursement.
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Clinical trials in
particular are expensive and have a high risk of failure. Any of our product candidates may fail in the testing phase or may not achieve results sufficient to attain market acceptance, which could prevent us from achieving profitability. We do not
know whether we will begin and conduct planned clinical trials on schedule, if at all. Significant delays in clinical testing could materially impact our clinical trials. We also do not know whether planned clinical trials will need to be revamped
or will be completed on schedule, if at all. Criteria for regulatory approval in blood safety indications are evolving with competitive advances in the standard of care against which new product candidates are judged, as well as with changing market
needs and reimbursement levels. Clinical trial design, including enrollment criteria, endpoints, and anticipated label claims are thus subject to change, even if original objectives are being met. In addition



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to the reasons stated above, clinical trials can be delayed for a variety of reasons, including delays in obtaining regulatory approval to commence a study,
delays in reaching agreement on acceptable clinical study agreement terms with prospective clinical sites, delays in obtaining institutional review board approval to conduct a study at a prospective clinical site and delays in recruiting subjects to
participate in a study. We do not know whether any clinical trials will result in marketable products. Typically, there is a high rate of failure for product candidates in preclinical and clinical trials and product emerging from any successful
trials would not reach the market for several years.

It may take us several years to complete our clinical testing, and failure can occur
at any stage of testing. Enrollment criteria for certain of our clinical trials may be quite narrow. Consequently, we may be unable to recruit suitable patients into the trial on a timely basis, if at all. We cannot rely on interim results of trials
to predict their final results, and acceptable results in early trials might not be repeated in later trials. Any trial may fail to produce results satisfactory to the FDA or foreign regulatory authorities. In addition, preclinical and clinical data
can be interpreted in different ways, which could delay, limit or prevent regulatory approval. Negative or inconclusive results from a preclinical study or clinical trial or adverse medical events during a clinical trial could cause a preclinical
study or clinical trial to be repeated, require other studies to be performed or cause a program to be terminated, even if other studies or trials relating to a program are successful.

The FDA and other agencies in the United States and in foreign countries impose substantial requirements upon the manufacturing and marketing of products
such as those we are developing. The process of obtaining FDA and other required regulatory approvals is long, expensive and uncertain, and typically takes a number of years, depending on the type, complexity and novelty of the product. In addition,
we may be required to obtain approval from the Food and Drug Branch of the California State Department of Health for any product manufactured by us in California, including for clinical trial use. We may encounter significant delays or excessive
costs in our efforts to secure necessary approvals or licenses, or we may not be successful at all.

We have received CE mark approval and
in-country regulatory approvals for the INTERCEPT platelet and plasma systems, which allow us to sell our platelet and plasma systems only in certain countries, mainly in Europe, Russia, the Middle East, and Asia. We have not received regulatory
approval for commercial sale of the INTERCEPT Blood System in the United States and many other countries around the world. Our products are in various stages of development and regulatory approval, and we face the risks of failure inherent in
developing medical devices and biotechnology products based on new technologies. Our products must satisfy rigorous standards of safety and efficacy and we must adhere to quality standards regarding manufacturing and customer-facing business
processes before the FDA and international regulatory authorities can approve them for commercial use. We must provide the FDA and international regulatory authorities with preclinical, clinical and manufacturing data demonstrating that our products
are safe, effective and in compliance with government regulations before the products can be approved for commercial sale. We will need to complete validation studies and obtain in-country regulatory approvals and gain national reimbursement in
certain European countries before we can market and sell our products in those countries.

Before the FDA determines whether to approve the
INTERCEPT Blood System products, we expect our approval applications to be reviewed by the Blood Products Advisory Committee, or BPAC. BPAC would then make a recommendation to the FDA for, or against, approval. Even if BPAC were to recommend
approval of one or more of our products, the FDA would not necessarily approve those products. If BPAC were to recommend against approval of one or more of our products, it is likely that the FDA would not approve those products. If our product
candidates receive approval for commercial sale, their marketing and manufacturing will be subject to continuing FDA and other regulatory requirements, such as requirements to comply with Good Manufacturing Practice and ISO 13485, a quality
management system standard applicable to the products we sell in Europe. The failure to comply with these requirements on an ongoing basis could result in delaying or precluding commercialization efforts in certain geographies, including the United
States, and could result in enforcement action, which could harm our business. The current manufacturing sites we rely upon for producing the platelet and plasma system products for international distribution and sale are not FDA-qualified
facilities. Regulatory authorities may also require post-marketing testing, which can involve significant expense. Governments or regulatory authorities may impose new regulations or other changes or we may discover that we are subject to additional
regulations that could further delay or preclude regulatory approval and subsequent adoption of our potential products. We cannot predict the impact of adverse governmental regulation that might arise from future legislative or administrative
action.

Distribution of our products in markets outside the United States also is subject to extensive government regulation. These
regulations vary by country, including the requirements for approvals or clearance to market, the time required for regulatory review and the sanctions imposed for violations. In some countries, we may be required to register as a medical device
manufacturer, even though we outsource manufacturing to third parties. In addition to CE mark documentation, countries outside the European Union may require clinical data submissions, registration packages, import licenses or other documentation
with which we have little or no familiarity.

In May 2007, we obtained a CE mark extension in our name from European Union regulators for
our platelet system, originally obtained by Baxter in 2002, and will need to obtain an extension every five years. In April 2009 we received a CE mark on a new product configuration of our platelet system to treat larger volumes of platelets. In
addition to European Union-level approval, we must obtain regulatory and reimbursement approvals in some individual European countries to market our products. We may also be required to conduct additional testing in order to obtain regulatory
approval in countries that do not recognize the CE mark as being adequate for commercializing the INTERCEPT Blood System in those countries. The level of additional product testing varies by country, but could be expensive or take a long time to
complete. Failure to obtain necessary regulatory approvals or any other failure to comply with regulatory requirements could result in lost product revenue and profitability. In addition, regulatory agencies are able to withdraw or suspend
previously issued approvals. For example, we recently received notice from Health Canada that the license for the platelet system that was issued to Baxter had been suspended.



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We completed our Phase III clinical trial of the platelet system in the United States in March 2001 and
submitted data from this trial, along with several other modules of our pre-market approval application, to the FDA. Based on discussions with the FDA, we performed an additional blinded analysis of the clinical trial data, under the direction of an
independent expert physician panel, to determine if apparent differences between treatment groups in the category of pulmonary adverse events reported in the study were attributable to inconsistent event reporting. The reassessment of primary
patient records by the expert physician panel showed no statistically significant differences between groups. This reassessment differed from the earlier analysis of adverse events that was based on clinical trial case report forms, which showed
statistically significant differences in specific pulmonary events. We submitted a report of the analysis to the FDA for review. We have had several interactions with the FDA subsequent to the final report submission. We understand that our
reassessment of our previously completed Phase III clinical trial data will not be sufficient to address the apparent differences observed in that trial between the treatment groups in the category of pulmonary adverse events. Contrary to prior
interactions with the FDA, in which we understood that the FDA might consider non-randomized, un-blinded, and non-controlled data gathered from monitoring patients transfused with INTERCEPT-treated platelets in the context of standard medical
practice in Europe in conjunction with data from the previously completed Phase III trials, we now understand that a Europe-based study is not likely to answer all the questions the FDA has posed, while adhering to study logistics and protocols that
the agency is recommending. The FDA has clarified in recent teleconferences with us the nature of the data needed to address the FDAs open clinical questions. From these recent interactions with FDA, we have determined that the most feasible
pathway to gain regulatory approval of the platelet system in the U.S. would be to conduct a second randomized Phase III clinical trial using U.S. sites, perhaps in conjunction with a Phase IV clinical trial in Europe. There is no assurance that we
will be able to reach agreement with the FDA on the data to be collected and endpoints to be monitored, that transfusing physicians with patients in the study will adhere to post diagnostic medical procedures that may be mandated in the agreed upon
study protocol, that we will be able to collect such data, or that the FDA will find such data adequate to answer questions that the FDA has concerning the safety and efficacy of the platelet system. We may conclude that the cost of gathering such
data or the time required to do so is too great or that gathering such data is not logistically achievable. We understand that the FDA will likely require a larger, randomized, blinded clinical trial than we and Baxter completed in 2001 before a
product license application can be finalized and the platelet system considered for approval in the United States. The dimensions of such a Phase III trial may be prohibitively large due either to prospective cost, logistics or both. We have no
plans to initiate such a trial unless adequate funding from partners or government agencies is secured. The additional Phase III clinical trial will need to be completed and data submitted to the FDA before we can complete our regulatory submission.
In addition, the FDA will require that certain manufacturing and distribution facilities operated by the third parties with whom we contract to produce the platelet system be compliant with Good Manufacturing Practice, or GMP, regulations and
Quality System Regulations, or QSR, before the FDA would consider the applications for approval.

We have completed Phase IIIa, Phase IIIb
and Phase IIIc clinical trials of the plasma system, in the United States, reports for which were filed with the FDA during 2005. We obtained a CE mark approval in Europe of the plasma system in November 2006 and final French approval in May 2007
based on data from those trials of the plasma system. We have not submitted any applications for regulatory approval of the plasma system in the United States or any other regions other than Europe. In some countries, including several in Europe, we
or our customers may be required to perform additional clinical studies or submit manufacturing and marketing applications in order to obtain regulatory approval.

We have conducted many toxicology studies to demonstrate the INTERCEPT platelet and plasma systems safety, and we have conducted and plan to conduct toxicology studies for the INTERCEPT red blood cell system
throughout the product development process. At any time, the FDA and other regulatory authorities may require further toxicology or other studies to further demonstrate our products safety, which could delay commercialization. In addition, the
FDA or foreign regulatory authorities may alter guidance at any time as to what constitutes acceptable clinical trial endpoints or trial design, which may necessitate our having to redesign our product or proposed clinical trials and cause us to
incur substantial additional expense or time in attempting to gain regulatory approval. We believe the FDA and other regulatory authorities are likely to weigh the potential risks of using our pathogen inactivation products against the incremental
benefits, which may be less compelling in light of improved safety in the blood supply. We expect the FDA to require us to demonstrate a very low level of potential side effects in non-randomized data from standard medical practice in Europe or in
additional randomized Phase III trials of the platelet system we may conduct in the United States or elsewhere. Trials of this type may be too large and expensive to be practical.

As a result of the termination of Phase III clinical trials of our red blood cell system due to the detection of antibody reactivity to red blood cells
treated with the INTERCEPT red blood cell system in one patient in the chronic arm of the trials, we have been conducting additional research activities on our red blood cell system to determine if the system can be reconfigured to reduce the
potential for antibody reactivity to treated red blood cells. Based upon an internal evaluation of the results from these additional research activities and after consulting with regulatory authorities, we initiated a new Phase I trial in 2006 in
the United States using a modified red blood cell system before potentially progressing to later-stage clinical trials. We utilized a manual processing system in the Phase I trial conducted in 2006, which system is not in a commercially feasible
form. Results of the Phase I trial suggested that the modified process in combination with a conventional additive solution results in conditions not suitable for long-term storage of red blood cells treated with the INTERCEPT system, adversely
impacting their lifespan. Consequently, we conductedin vitro andin vivo studies and initiated a new Phase I clinical trial in the fourth quarter of 2008 to test further modifications to the red blood cell system. A number of trial
design, process and product design issues that could impact efficacy, regulatory approval and market acceptance will need to be resolved prior to the initiation of further clinical trials. While those clinical trials are being conducted and further
clinical work is planned, including determining the appropriate design of additional Phase I, subsequent Phase II clinical trials, if deemed necessary, and Phase III clinical trials, we will need to develop a commercially feasible red blood cell
system, including disposables, hardware and software for implementing the process in blood collection centers. In the aggregate, these activities will require significant funding beyond our current resources. We will not commence the next phase of
activities until we have secured adequate funds. We expect that we can continue some level of program advancement on a cash neutral basis with grant funding from the Department of Defense and existing and potential



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partners. A delay in completing such activities could result in a delay in the timely progression to later stage trials. If we are unsuccessful in advancing
a modified red blood cell system through clinical trials, resolving process and product design issues or in obtaining subsequent regulatory approvals and acceptable reimbursement rates, we may never realize a return on our development expenses
incurred to date in the red blood cell system program.

Regulatory delays can also materially impact our product development costs. If we
experience delays in testing, conducting trials or approvals, our product development costs will increase. For example, we may need to repeat clinical trials to address regulatory or clinical questions. We may also need to retain third-party
investigators and organizations in an attempt to facilitate regulatory review and approval. If the delays are significant, our financial results and the commercial prospects for our products will be harmed, and our ability to become profitable will
be delayed.

Regulatory agencies may limit the uses, or indications, for which any of our products are approved. For example, we believe
that the INTERCEPT Blood System products will be able to claim the inactivation of particular pathogens only to the extent we have laboratory data to support such claims. After regulatory approval for the initial indications, further studies may be
necessary to gain approval for the use of the product for additional indications.

In addition to the regulatory requirements applicable to
us and to our products, there are regulatory requirements in several countries around the world, including the United States, Germany, Canada, and Australia, and other countries, applicable to our prospective customers of INTERCEPT Blood System
products, the blood centers that process and distribute blood and blood products. In those countries, blood centers and other customers will be required to obtain approved license supplements from the appropriate regulatory authorities in each
country before making available blood products processed with our pathogen inactivation systems to hospitals and transfusing physicians. For example, our customers in Germany must obtain separate regulatory approvals to manufacture and sell blood
components treated with the INTERCEPT Blood System. Our customers may lack the resources or capability to obtain such regulatory approvals. These requirements or regulators delays in approving license applications or supplements may deter some
blood centers from using our products. Blood centers that do submit applications or supplements for manufacturing and sale may face disapproval or delays in approval that could provide further delay or deter them from using our products. The
regulatory impact on potential customers could slow or limit the potential sales of our products.

We have limited experience
operating a commercial organization. We rely on third parties to market, sell, and distribute our products and to maintain customer relationships in a number of foreign countries.

Since February 2006, we have been fully responsible for sales, marketing, distribution and regulatory support of the INTERCEPT Blood System worldwide,
except in those Asian territories covered by our agreements with BioOne for the platelet and plasma systems. We no longer rely upon Baxter or Fenwal for these activities. If we fail in our efforts to develop or maintain such internal competencies or
establish acceptable relationships with third parties on a timely basis, our attempts to commercialize the INTERCEPT Blood System may be irreparably harmed.

We operate a small organization, headquartered in the Netherlands, dedicated primarily to selling and marketing the platelet and plasma systems in geographies where the INTERCEPT platelet and plasma systems are
approved. We will need to maintain and continue to increase our competence in a number of functions, including sales, marketing, regulatory, inventory and logistics, customer service, credit and collections, risk management, and quality assurance
systems. Many of these competencies require compliance with EU and local standards and practices, with which we have limited experience.

We have entered into contracts, generally on a geographically exclusive basis, with distributors in countries where we have limited abilities to commercialize our pathogen inactivation products directly. We have entered into national
distribution agreements in Spain, Portugal and Chile, Russia, Poland, Greece, and Kuwait, as well as regional distribution agreements in Italy. We rely on these distributors to market and sell the INTERCEPT Blood System, obtain any necessary
in-country regulatory approvals beyond the CE marks, provide customer support, maintain inventories, and adhere to our quality system in all material respects, among other activities. While our contracts generally require distributors to exercise
diligence, these distributors may fail to commercialize the INTERCEPT Blood System in their respective territories or may do so on terms which are not economic to us. They may fail to sell product inventory they have purchased from us to end
customers. Initial purchases of UVA illuminators or disposable kits by these third parties may not lead to follow-on purchases of disposable platelet and plasma system kits. We have limited visibility into the identity and requirements of blood
banking customers these distributors may have. These third parties may irreparably harm relationships with local existing and prospective customers and our standing with the blood banking community in general. We may have little recourse, short of
termination, in the event that a distributor fails to execute according to our expectations

We must develop regulatory capabilities
for clinical-stage and post-approval trials involving the INTERCEPT Blood System globally.

Failure to develop regulatory
capabilities in support of international commercialization of the INTERCEPT Blood System may slow the rate of adoption of the platelet and plasma systems. We may not have adequate internal resources and capabilities to manage clinical-stage and
post-approval trials and to respond appropriately to possible customer complaints or required regulatory reporting of adverse events arising from the use of the platelet and plasma systems. We will need to increase our regulatory and trial
management resources or contract with independent regulatory consultants, which we may be unable to do on a timely basis. Adding regulatory and trial management resources will result in increased costs and may potentially delay regulatory filings.
Delays or inabilities to complete regulatory filings and obtain approvals will also delay or prevent us from being able to recognize sales of our products and attaining profitability.



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We rely on third parties for manufacturing and supplying components of our platelet and plasma
systems. We are dependent on Fenwal to manufacture disposable kits for the platelet and plasma systems through the end of 2013. Over a longer period, we may need to identify, select and qualify alternate third party sources of supply for the
INTERCEPT Blood System, including the INTERCEPT red blood cell system if our agreement with Fenwal cannot be extended or broadened.

In March 2007 Baxter sold its Transfusion Therapies business, the unit of Baxter that has performed many of the manufacturing and supply chain activities related to our relationship with Baxter, to a new company, Fenwal, Inc. Fenwal has
agreed, through an agreement signed with us in December 2008, to manufacture disposable kits for the platelet and plasma systems for us through the end of 2013. However, Fenwal may fail to manufacture an adequate supply of disposable kits and
Intersol additive solution or to do so on a cost effective basis, which would subject us to loss of revenue and reduced contribution margin. In addition, because the components of the INTERCEPT Blood System are manufactured and assembled at multiple
facilities owned by both Fenwal and Baxter leading up to final assembly, Fenwal and Baxter will remain interdependent with respect to the INTERCEPT Blood System supply chain. Fenwal and Baxter may fail to coordinate or meet interdependent supply
chain obligations, leading to a failure to manufacture an adequate supply of components or devices of the INTERCEPT Blood System, which would also subject us to the risks described below. We contract with independent suppliers, including NOVA, for
the manufacture of UVA illuminators and certain components of the INTERCEPT Blood System which are manufactured or assembled at facilities not owned by Fenwal or Baxter. Facilities at which the INTERCEPT Blood System or its components are
manufactured may cease operations for planned or unplanned reasons, causing at least temporary interruptions in supply. Even a temporary failure to supply adequate numbers of INTERCEPT Blood System components may cause an irreparable loss of
customer goodwill. If we conclude that supply of the INTERCEPT Blood System or components from Fenwal and others is uncertain, we may choose to build and maintain inventories of raw materials, work-in-process components, or finished goods, which
would consume capital resources and may cause our supply chain to be less efficient. Future supply of illuminators is limited to availability of components, some of which are in short supply or are no longer manufactured. We will be required to
redesign the illuminator used in the platelet and plasma systems to manage the risk of obsolete components. Such redesign may be expensive and lead to regulatory delays in obtaining approvals to market the redesigned device.

Fenwal manufactures our platelet and plasma systems in facilities that are not FDA-approved. In order to be sold in the United States, our systems would
be required to be manufactured in FDA-approved facilities. FDA validation of manufacturing facilities, whether owned by Fenwal or by other parties, will be costly and time-consuming.

We will also be dependent on Baxter and Fenwal to transfer know-how relevant to the INTERCEPT Blood System; however, certain of Fenwals materials,
manufacturing processes and methods are proprietary to Fenwal or Baxter. We may be unable to establish alternate sources of supply to Fenwal without having to redesign certain elements of the platelet and plasma systems. Such redesign may be costly,
time consuming and require further regulatory review, which would delay our ability to commercialize the platelet and plasma systems. Fenwal is not obligated to provide support for development and testing of improvements or changes we may make to
the INTERCEPT Blood System. We may be unable to identify, select, and qualify such manufacturers or those third parties able to provide support for development and testing activities on a timely basis or enter into contracts with them on reasonable
terms, if at all. We have recently contracted directly with third-party suppliers of certain components of the platelet and plasma systems which Fenwal had used historically in an effort to make the supply of components more reliable, though doing
so will increase our investment in raw material and work-in-process inventories and subject us to minimum purchase requirements. We understand that a raw material supplier to Baxter, which in turn supplies Fenwal, for a proprietary plastic used in
the platelet and plasma systems disposable kits has ceased production, and that Baxter may be unable to identify an alternate supplier on a timely basis, if at all. Raw material and component suppliers may not meet quality specifications we
have set, which would cause a disruption in supply and may lead to lost sales and irreparable damage to our customer relationships. Moreover, the inclusion of components manufactured by new suppliers could require us to seek new or updated approvals
from regulatory authorities, which could result in delays in product delivery. We may not receive any such required regulatory approvals.

Our potential remedies against Fenwal or other manufacturers may be inadequate in assuring that these manufacturing partners meet their contractual obligations.

In the event of a failure by Fenwal or other manufacturers to perform their obligations to supply components of the INTERCEPT Blood System to us, damages
recoverable by us may be insufficient to compensate us for the full loss of business opportunity. Our supply agreements with Fenwal and NOVA, and supply agreements with others contain limitations on incidental and consequential damages that we may
recover. A suppliers potential liability in the event of non-performance may not be sufficient to compel the supplier to continue to act in conformity with our agreements.

The platelet system is not compatible with some commercial platelet collection methods and platforms and platelet storage solutions.

The equipment and materials used to collect platelets vary by manufacturer and by geographic region. Platelets may be collected
from a single donor by apheresis using an automated collection machine. Apheresis devices currently used in the United States and European markets differ, among other characteristics, in their ability to collect platelets in reduced volumes of
plasma. Platelet concentrates may also be prepared from whole blood by pooling together platelets from multiple donors. There are two commonly used methods for preparing whole blood platelets: the buffy coat method, which is used extensively in
Europe, and the pooled random donor method, which is used in the United States.

Our system for platelets is designed to work with
platelets collected using a proprietary platelet storage solution, called Intersol, manufactured by Fenwal. For platelets collected by apheresis, the INTERCEPT platelet system is most compatible with Fenwals apheresis platelet collection
system, because it facilitates the use of Intersol. For platelets prepared from whole blood, our platelet system



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is most compatible with the buffy coat collection method, again because this method facilitates the use of Intersol as an additive solution to the platelet
concentrate. As a result, we have conducted most of our clinical studies using either Fenwals equipment or buffy coat platelets. More recently, we have begun conducting studies in Europe supporting the use of the platelet system in combination
with other collection and preparation platforms and with other additive solutions and with platelets suspended in plasma. We may not be successful in developing data supportive of commercialization using other collection and preparation platforms
and with other additive solutions, which would limit customer adoption of the INTERCEPT Blood System. Fenwal may be required to obtain separate regulatory approval for Intersol in the United States and in countries which do not recognize CE mark
approval before customers would be permitted to use Intersol with the INTERCEPT Blood System in those countries.

In order to address the
entire market in the United States, we would need to develop and test additional configurations of the platelet system. Our efforts to develop the platelet system were initially focused on apheresis platelets collected on Fenwals automated
collection platform or using the buffy coat collection method. We estimate that the majority of platelets used in the United States are collected by apheresis, though a significant minority is prepared from pooled random donor platelets derived from
whole blood collections. In order to gain regulatory approvals for a pathogen inactivation system compatible with random donor platelets, we will need to perform additional product development and testing, including additional clinical trials.
Similarly, to achieve market acceptance in certain geographies, we may be required to design, develop and test new product configurations for the platelet and plasma systems. These development activities would increase our costs significantly, and
may not be successful.

Fenwal has committed to us to make Intersol collection and pooling products and conversion kits available to
customers. However, Fenwal may not make such products or its apheresis collection system available for sale in certain countries and has elected to discontinue sales efforts for its apheresis collection system in Japan.

Other manufacturers supplying blood component collection platforms to the market may resist our efforts to make the INTERCEPT Blood System compatible
with their platforms. Attaining compatibility with collection platforms manufactured by others may require adaptations to either the INTERCEPT Blood System or to the collection platforms, which may be difficult to engineer, expensive to implement
and test, require additional clinical trials, cause delays in regulatory approval and/or be commercially unattractive to pursue. These development activities will increase our costs significantly, and may not be successful. Market acceptance of the
INTERCEPT Blood System may be delayed until the system receives regulatory approval for use on such other equipment, if required.

Because the INTERCEPT Blood System products have not been manufactured on more than a limited commercial scale, we face manufacturing uncertainties that could limit their commercialization. If our third-party manufacturers fail to
produce our products or compounds satisfactorily, at acceptable cost and in sufficient quantities, we may incur delays, shortfalls and additional expenses, which may in turn result in permanent harm to our customer relations.

The INTERCEPT Blood System products, including many of the components, have been manufactured on a commercial scale on only a limited basis. Fenwal relies
on third parties, including Baxter, to manufacture and assemble some of the platelet and plasma system components, many of which are customized and have not been manufactured on a commercial scale. Fenwal has produced some pathogen inactivation
systems in modest commercial quantities, but may not be able to manufacture and assemble other systems or in larger quantities, or do so economically. Because of low sales volumes and other reasons, Fenwals costs to manufacture commercial
components for the platelet and plasma systems have been greater than we previously anticipated and may continue to rise. It is uncertain what effect Fenwals independence from Baxter will have on its cost structure or on transfer prices from
Baxter to Fenwal and costs ultimately passed on to us. These issues may result in reducing our potential gross profit margin from platelet and plasma system sales.

We are in the initial stages of commercializing the INTERCEPT Blood System and may not accurately forecast demand for the INTERCEPT Blood System. We have contracted with third parties to supply platelet and plasma
systems and components to meet forecasted demand. However, such forecasts may prove to be either higher or lower than actual commercial demand. As a result, we may carry excess work-in-process or finished goods inventory, which would consume capital
resources and may become obsolete, or be inadequate to meet customer demand. If Fenwal or third-party manufacturers fail to produce our products or Intersol products satisfactorily, at acceptable costs and in sufficient quantities, we may incur
delays, shortfalls and additional expenses, which may in turn result in permanent harm to our customer relations.

Fenwal and we purchase
certain key components of the INTERCEPT Blood System from a limited number of suppliers. It would be expensive and time-consuming to establish additional or replacement suppliers for these components. Some components of the INTERCEPT Blood System,
including components of the UVA illuminator device, are no longer manufactured, which will require us to identify and qualify replacement components and may require that we conduct additional studies, which could include clinical trials, to
demonstrate equivalency or validate any required design or component changes. We understand that a raw material supplier to Baxter, which in turn supplies Fenwal, for a proprietary plastic used in the platelet and plasma systems disposable
kits has ceased production, and that Baxter may be unable to identify an alternate supplier on a timely basis, if at all. If Fenwal or we are unable to identify and supply replacement components, we may be unable to supply products to our customers.
If we were required to redesign the products, our development costs would increase, and our programs and commercialization efforts could be delayed significantly.

We use third-party manufacturers to produce commercial quantities of the chemical compounds used in our products. We currently do not have any third-party manufacturing agreements in place for commercial production of
compounds used in our red blood cell system, which is in early stages of clinical development. Any new or additional commercial manufacturer will need to develop new methods and processes to manufacture these compounds on a commercial scale and
demonstrate to us, the FDA and foreign regulatory authorities that its commercial scale manufacturing processes comply with government regulations and that its compounds are equivalent to originally licensed compounds in order for us to maintain
commercial licensure of our products. It may be difficult or impossible to economically manufacture our products on a commercial scale.



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Our platelet and plasma system disposables have received regulatory approval for two-year shelf lives. We
and our distributors may be unable to ship product to customers prior to the expiration of product shelf life, which would require that we destroy or consume the outdated inventory in product demonstration activities at our expense.

We have used prototype components in our preclinical studies and clinical trials of the INTERCEPT red blood cell system and have not completed the
components commercial design. We will be required to identify and enter into agreements with third parties to manufacture the red blood cell system and related blood component storage solutions.

The system disposables and instruments of our red blood cell system that we used in our preclinical studies and clinical trials in the United States
historically and those we are now using in the current Phase I red blood cell trial are prototypes of systems to be used in the final products. As a result, we expect regulatory authorities will require us to perform additional preclinical and
clinical studies using the commercial versions of the systems to demonstrate the acceptability of the commercial configuration and the equivalence of the prototypes and the commercial products, which may increase our expenses and delay the
commercialization of our products. We have tested additional modifications of the red blood cell system to improve the lifespan of treated red blood cells.In vitro andin vivo studies of such modifications to the red blood cell system
may not be indicative of red blood cell lifespan in humans. Additional early-stage trials will be necessary to determine whether our modifications, including these new approaches, may lead to a product with acceptable commercial characteristics. We
also are assessing whether such modifications would be acceptable clinically, economically and/or operationally to potential customers. We may determine that although the modified red blood cell system may overcome technical issues encountered in
the past, it may not be commercially feasible from potential customers perspectives. If we fail to develop commercial versions of the INTERCEPT red blood cell system on schedule, our potential revenue would be delayed or diminished and our
potential competitors may be able to bring products to market before we do.

In addition, the design and engineering effort required to
complete the final commercial product will likely be substantial and time-consuming. As with any complex development effort, we expect to encounter design, engineering and manufacturing issues. Such issues have previously arisen, sometimes
unexpectedly, and solutions to these issues have not always been readily forthcoming. Additional unforeseen design, engineering and manufacturing issues may arise in the future, which could increase the development cost and delay commercialization
of our products.

Fenwal is not obligated to provide manufacturing services related to the red blood cell system. We will need to identify
parties to provide those manufacturing services related to our red blood cell system. It may be difficult to enter into these types of agreements on reasonable terms. In particular, it will be time-consuming for other manufacturers to develop the
capability to manufacture the INTERCEPT Blood System products and blood component storage solutions economically and to gain regulatory approval to do so for commercial use. We may be unable to identify and contract with manufacturers that can make
our products cost-effectively, which would delay our efforts to commercialize the red blood cell system, even if we successfully complete clinical development.

BioOne may fail to take advantage of commercialization rights for our platelet and plasma systems in many Asian countries.

Baxter and we have licensed to BioOne rights to commercialize the platelet and plasma systems in Japan, China, Taiwan, South Korea, Vietnam, Thailand, and Singapore. BioOne is subject to similar risks in its
territories regarding commercialization of the INTERCEPT Blood System as we are. BioOne is solely responsible for obtaining regulatory approvals, marketing and selling the platelet and plasma systems in countries where it holds licenses to
commercialize the INTERCEPT platelet and plasma systems. We understand Fenwal has assumed the rights and obligations of Baxter with regard to Baxters agreements with BioOne. BioOne is dependent on Fenwal for the manufacture and supply of the
platelet and plasma systems. BioOne may be unable to qualify the platelet and plasma systems for sale in certain countries in its territory.

BioOne has made little progress to date in commercializing the platelet and plasma systems in Asian territories. Because we only have a minority investment interest in BioOne, we lack the ability to significantly influence BioOne, and are
dependent on BioOnes performance to realize milestone and royalty revenue from commercialization of our platelet and plasma systems in those countries. In Japan, regulatory authorities may require our platelet and plasma systems to be widely
adopted commercially in Europe or approved by the FDA before the platelet and plasma systems are considered for approval in Japan, which would delay or prevent BioOne from achieving significant product revenue. In July 2007, BioOne raised limited
additional capital in order to fund curtailed operations. At these reduced operating levels, we expect that BioOnes abilities to commercialize the platelet and plasma systems in its Asian territories will be compromised. There is no assurance
that BioOne will be able to attract additional required capital in the future to successfully commercialize those products licensed from Fenwal and us. Even if BioOne fails to commercialize the INTERCEPT Blood System in its territories, we may be
unable to assert contractual rights to regain commercialization rights on satisfactory terms, if at all.

If our competitors develop
and market products that are more effective than our products and product candidates, our commercial opportunity will be reduced or eliminated. If competitors encounter difficulties or failures in human clinical trials or in commercial settings, we
may face additional clinical, regulatory and commercial challenges.

We expect our products to encounter significant competition.
The INTERCEPT Blood System products compete with other approaches to blood safety currently in use, and may compete with future products that may be developed by others. Our success will depend in part on our ability to respond quickly to medical
and technological changes brought about by the development and introduction of new products. Product development is risky and uncertain, and we cannot assure you that we will develop our products successfully.



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Competitors products or technologies may make our products obsolete or non-competitive before we are able to generate any significant revenue. In
addition, competitors or potential competitors may have substantially greater financial and other resources than we have. They may also have greater experience in preclinical testing, human clinical trials and other regulatory approval procedures.

Several companies are developing technologies that are, or in the future may be, the basis for products that will directly compete with or
reduce the market for our pathogen inactivation systems. A number of companies are specifically focusing on alternative strategies for pathogen inactivation in platelets and plasma. Competitors in platelet pathogen inactivation may be able to offer
customers systems using additive solutions other than Intersol, which we use in the INTERCEPT platelet system. In Europe, several companies, including Grifols S.A., Octapharma AG and MacoPharma International, are developing or selling commercial
pathogen inactivation systems or services to treat fresh frozen plasma. CaridianBCT is developing a pathogen inactivation system for blood products and has been issued CE marks for a pathogen reduction system for both platelets and plasma.
CaridianBCT also commenced trials on a pathogen inactivation system for whole blood, which may offer competitive advantages over our INTERCEPT Blood System, with its three distinct components for platelets, plasma and red blood cells.

New methods of testing whole blood for specific pathogens have been approved by the FDA and in Europe, as have tests for bacteria in platelets. Continued
delays in commercialization of our platelet and plasma systems in France and Germany may impact our ability to compete with bacterial testing for platelets. Other competitors are developing rapid, point-of-care bacterial tests, synthetic blood
product substitutes and products to stimulate the growth of platelets. Development and commercialization of any of these or other related technologies could limit the potential market for our products.

We may be liable and we may need to withdraw our products from the market if our products harm people. We may be liable if an accident occurs in
our controlled use of hazardous materials. Our insurance coverages may be inadequate to offset losses we may incur.

We are exposed
to potential liability risks inherent in the testing and marketing of medical devices and pharmaceutical products. We may be liable if any of our products cause injury, illness or death. Although we will have completed rigorous preclinical and
clinical safety testing prior to marketing our products, there may be harmful effects caused by our products that we are unable to identify in preclinical or clinical testing. In particular, unforeseen, rare reactions or adverse side effects related
to long-term use of our products may not be observed until the products are in widespread commercial use. Because of the limited duration and number of patients receiving blood components treated with the INTERCEPT Blood System products in clinical
trials, it is possible that harmful effects of our products not observed in clinical and preclinical testing could be discovered after a marketing approval has been received. Later discovery of problems with a product, manufacturer or facility may
result in additional restrictions on the product or manufacturer, including withdrawal of the product from the market. We are subject to risks and costs of product recall, which include not only potential out-of-pocket costs, but also potential
interruption to our supply chain. In such an event, our customer relations would be harmed and we would incur unforeseen losses.

We
maintain product liability insurance, but do not know whether the insurance will provide adequate coverage against potential liabilities. If we cannot successfully defend ourselves against product liability claims, we may incur substantial
liabilities or be required to limit commercialization of our products.

Our research and development activities involve the controlled use
of hazardous materials, including certain hazardous chemicals, radioactive materials and infectious pathogens, such as HIV and hepatitis viruses. Although we believe that our safety procedures for handling and disposing of hazardous materials are
adequate and comply with regulatory requirements, we cannot eliminate the risk of accidental contamination or injury. If an accident occurs, we could be held liable for any damages that result.

Virtually all of our research and development activities and the significant majority of our general and administrative activities are performed in
or managed from a single site that may be subject to lengthy business interruption in the event of a severe earthquake. We also may suffer loss of computerized information and may be unable to make timely filings with regulatory agencies in the
event of catastrophic failure of our data storage and backup systems.

Virtually all of our research and development activities and
the significant majority of our general and administrative activities are performed in or managed from our facilities in Concord, California, which are within an active earthquake fault zone. Should a severe earthquake occur, we might be unable to
occupy our facilities or conduct research and development and general and administrative activities in support of our business and products until such time as our facilities could be repaired and made operational. Our property and casualty and
business interruption insurance in general does not cover losses caused by earthquakes. While we have taken certain measures to protect our scientific, technological and commercial assets, a lengthy or costly disruption due to an earthquake would
have a material adverse effect on us. We have also taken measures to limit damage that may occur from the loss of computerized data due to power outage, system or component failure, or corruption of data files. However, we may lose critical
computerized data, which may be difficult or impossible to recreate, which may harm our business. We may be unable to make timely filings with regulatory agencies in the event of catastrophic failure of our data storage and backup systems, which may
subject us to fines or adverse consequences, up to and including loss of our abilities to conduct business.

We do not anticipate
receiving significant economic benefit from the spin-off of our immunotherapy business.

In November 2007, we spun-off our
immunotherapy business to Anza. In exchange for contributed tangible and intangible assets, we received preferred stock representing an equity interest of approximately 20% of Anzas preferred equity. The terms of sale provided Anza a right to
redeem up to 1,000,000 of such shares for a nominal amount upon the failure to occur of certain circumstances relating to



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possible research grant funding from the DoD. We were advised informally in February 2009 that, based upon such provision, Anza may seek to redeem 1,000,000
shares held by us. If such shares are redeemed by Anza, we would own fewer shares of Anzas preferred stock, reducing our preferred equity interest to approximately 16.0% of Anzas outstanding preferred equity. We are evaluating whether
such clause is applicable in the present circumstances. There is no assurance that the equity will have monetary value at such time we are allowed to sell it or that we will receive any proceeds upon liquidation or sale of Anza. We were informed in
February 2009 that Anza had ceased operations.

We may not be able to protect our intellectual property or operate our business
without infringing intellectual property rights of others.

Our commercial success will depend, in part, on obtaining and
maintaining patent protection on our products and successfully defending our products against third-party challenges. Our technology will be protected from unauthorized use only to the extent that it is covered by valid and enforceable patents or
effectively maintained as trade secrets. As a result, our success depends in part on our ability to:



| |  |  | obtain patents;
| | - |  | ---------------



| |  |  | protect trade secrets;
| | - |  | ----------------------



| |  |  | operate without infringing upon the proprietary rights of others; and
| | - |  | ---------------------------------------------------------------------



| |  |  | prevent others from infringing on our proprietary rights.
| | - |  | ---------------------------------------------------------

We cannot be certain that our patents or patents that we license from others will be enforceable and afford protection against competitors. Our patents or patent applications, if issued, may be challenged, invalidated
or circumvented. Our patent rights may not provide us with proprietary protection or competitive advantages against competitors with similar technologies. Others may independently develop technologies similar to ours or independently duplicate our
technologies. For example, a United States patent issued to a third-party covers methods to remove psoralen compounds from blood products. We have reviewed the patent and believe there exist substantial questions concerning its validity. We cannot
be certain, however, that a court would hold the patent to be invalid or not infringed by our platelet or plasma systems, if and when those products are sold in the United States. Our key blood safety patents generally expire at various dates
between 2012 and 2018. Recent patent applications will, if granted, result in patents with later expiration dates. In addition, we have a license from Fenwal to United States and foreign patents relating to the INTERCEPT Blood System, which expire
from 2010 to 2022. Due to the extensive time required for development, testing and regulatory review of our potential products, our patents may expire or remain in existence for only a short period following commercialization. This would reduce or
eliminate any advantage of the patents.

We cannot be certain that we were the first to make the inventions covered by each of our issued
patents or pending patent applications or that we were the first to file patent applications for such inventions. We may need to license the right to use third-party patents and intellectual property to continue development and commercialization of
our products. We may not be able to acquire such required licenses on acceptable terms, if at all. If we do not obtain such licenses, we may need to design around other parties patents, or we may not be able to proceed with the development,
manufacture or sale of our products.

We may face litigation to defend against claims of infringement, assert claims of infringement,
enforce our patents, protect our trade secrets or know-how or determine the scope and validity of others proprietary rights. Patent litigation is costly. In addition, we may require interference proceedings before the United States Patent and
Trademark Office to determine the priority of inventions relating to our patent applications. Litigation or interference proceedings could be expensive and time consuming, and we could be unsuccessful in our efforts to enforce our intellectual
property rights.

We may rely, in certain circumstances, on trade secrets to protect our technology. However, trade secrets are difficult
to protect. We protect our proprietary technology and processes, in part, by confidentiality agreements with employees and certain contractors. These agreements may be breached and we may not have adequate remedies for any breach or our trade
secrets may otherwise become known or be independently discovered by competitors. To the extent that our employees, consultants or contractors use intellectual property owned by others, disputes also may arise as to the rights in related or
resulting know-how and inventions.

As our international operations grow, we may be subject to adverse fluctuations in exchange rates
between the United States dollar and foreign currencies. Consequently, we may suffer losses.

Our international operations are
subject to risks typical of an international business, including, among other factors: differing political, economic, and regulatory climates, different tax structures, and foreign exchange volatility. We do not currently enter into any hedging
contracts to normalize the impact of foreign exchange fluctuations. As a result, our future results could be materially affected by changes in these or other factors.

Product sales of our blood safety products are typically made in Europe and generally are invoiced to customers in Euros. In addition, we purchase finished disposable kits for our platelet and plasma systems and incur
operating expenses in Euros and other foreign currencies. Our exposure to foreign exchange rate volatility is a direct result of our product sales, cash collection and expenses to support our international operations. Foreign exchange rate
fluctuations are recorded as a component of interest (expense) and other, net on our condensed consolidated statements of operations. Significant fluctuations in the volatility of foreign currencies relative to the United States dollar may
materially affect our results of operations. Currently we do not have any near-term plans to enter into a formal hedging program to mitigate the effects of foreign currency volatility.



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The market price of our stock may be highly volatile.

The market prices for our securities and those of other emerging medical device and biotechnology companies have been, and may continue to be, volatile.
For example, during the period from January 1, 2006, to March 31, 2009, the sale price of our common stock as quoted on the Nasdaq Global Market fluctuated within a range from a low of $0.55 to a high of $14.76. Announcements may have a
significant impact on the market price of our common stock. Such announcements may include:



| |  |  | decisions regarding reimbursement and commercial adoption by customers, national blood services or governmental bodies;
| | - |  | -----------------------------------------------------------------------------------------------------------------------



| |  |  | biological or medical discoveries;
| | - |  | ----------------------------------



| |  |  | technological innovations discovered or new commercial services offered by us or our competitors;
| | - |  | -------------------------------------------------------------------------------------------------



| |  |  | developments concerning proprietary rights, including patents and litigation matters;
| | - |  | -------------------------------------------------------------------------------------



| |  |  | regulatory developments in both the United States and foreign countries;
| | - |  | ------------------------------------------------------------------------



| |  |  | status of development partnerships;
| | - |  | -----------------------------------



| |  |  | dilution from future issuances of common stock, including through the exercise of vested stock options;
| | - |  | -------------------------------------------------------------------------------------------------------



| |  |  | debt financings, with terms that may not be viewed favorably by shareholders;
| | - |  | -----------------------------------------------------------------------------



| |  |  | public concern as to the safety of new technologies;
| | - |  | ----------------------------------------------------



| |  |  | general market conditions;
| | - |  | --------------------------



| |  |  | comments made by analysts, including changes in analysts estimates of our financial performance; and
| | - |  | -----------------------------------------------------------------------------------------------------



| |  |  | quarterly fluctuations in our revenue and financial results.
| | - |  | ------------------------------------------------------------

Recently, the stock market has experienced extreme price and volume fluctuations due to the unprecedented turmoil and upheaval of the credit markets and the financial services industry, which have particularly
affected the market prices for emerging biotechnology and medical device companies, and has adversely affected the market price of our common stock.

Our stock price may not meet the minimum bid price for continued listing on the Nasdaq Global Market. Our ability to publicly or privately sell equity securities and the liquidity of our common stock could be adversely affected if we
are delisted from The Nasdaq Global Market or if we are unable to transfer our listing to another stock market.

On October 17,
2008, Nasdaq temporarily suspended one of the listing requirements for continued listing on the Nasdaq Global Market that requires a companys minimum bid price to be above $1.00 per share. This suspension has been further extended by Nasdaq
several times and is currently set to expire on July 19, 2009. Our stock price is currently trading around $1.00 per share. If our stock price does not establish and maintain a minimum bid price above $1.00 per share before July 19, 2009,
we may be subject to delisting by Nasdaq for failure to meet the continued listing requirements. Delisting from Nasdaq could adversely affect our ability to raise additional financing through the public or private sale of equity securities, would
significantly affect the ability of investors to trade our securities and would negatively affect the value and liquidity of our common stock. Delisting could also have other negative results, including the potential loss of confidence by employees,
the loss of institutional investor interest and fewer business development opportunities.

We may fail to comply fully with elements of the
Sarbanes-Oxley Act of 2002. Our failure to maintain effective internal controls in accordance with Section 404 of this Act could have a material adverse effect on our stock price.

Section 404 of the Sarbanes-Oxley Act of 2002 requires annual management assessments of the effectiveness of our internal controls over financial
reporting and a report by our independent registered public accountants attesting to the effectiveness of our internal controls. These requirements extend to the operations of our subsidiary in Europe. If we fail to maintain the adequacy of our
internal controls over financial reporting, as such standards are modified, supplemented or amended from time to time, we may not be able to ensure that we can conclude in future periods that we have effective internal controls over financial
reporting in accordance with Section 404 of the Sarbanes-Oxley Act of 2002. If we cannot favorably assess, or our independent registered public accountants are unable to provide an unqualified attestation report on the effectiveness of our
internal controls over financial reporting, investor confidence in the reliability of our financial reports may be adversely affected, which could have a material adverse effect on our stock price.



|ITEM 2. | UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
|------- | -----------------------------------------------------------

None.



|ITEM 3. | DEFAULTS UPON SENIOR SECURITIES
|------- | -------------------------------

None.



|ITEM 4. | SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
|------- | ---------------------------------------------------

None.



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|ITEM 5. | OTHER INFORMATION
|------- | -----------------

None.



|ITEM 6. | EXHIBITS
|------- | --------



|            |  |                                                                                                                                    
|----------- |  | -----------------------------------------------------------------------------------------------------------------------------------
|3.1.1(1)    |  | Restated Certificate of Incorporation of Cerus Corporation, as amended to date.                                                    
|            | 
|3.2(2)      |  | Amended and Restated Bylaws of Cerus.                                                                                              
|            | 
|4.2(3)      |  | Specimen Stock Certificate.                                                                                                        
|            | 
|10.31(5)   |  | Cerus Corporation Change of Control Severance Benefit Plan, as amended.                                                            
|            | 
|10.40(5)   |  | Form of Restricted Stock Unit Agreement under the 1999 Equity Incentive Plan, as amended.                                          
|            | 
|10.41(4)(5) |  | Form of Indemnity Agreement, adopted April 24, 2009.                                                                               
|            | 
|31.1        |  | Certification of the Chief Executive Officer of Cerus pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                   
|            | 
|31.2        |  | Certification of the Chief Financial Officer of Cerus pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                   
|            | 
|32.1(*)     |  | Certification of the Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.



|(1) | Incorporated by reference to Cerus Current Report on Form 8-K (No. 000-21937), dated November 3, 1999.
|--- | -------------------------------------------------------------------------------------------------------



|(2) | Incorporated by reference to Cerus Current Report on Form 8-K (No. 000-21937), dated April 26, 2007
|--- | ----------------------------------------------------------------------------------------------------



|(3) | Incorporated by reference to Cerus Registration Statement on Form S-1 (File No. 333-11341) and amendments thereto.
|--- | -------------------------------------------------------------------------------------------------------------------



|(4) | Incorporated by reference to Cerus Current Report on Form 8-K (No. 000-21937), dated April 24, 2009.
|--- | -----------------------------------------------------------------------------------------------------



|(5) | Management contract or compensatory arrangement.
|--- | ------------------------------------------------



|(*) | This certification accompanies the Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission, and is not incorporated by reference into any
filing of Cerus Corporation under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form 10-Q), irrespective of any general incorporation language contained in
such filing.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | Filed herewith.
|- | ---------------



40



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##### Table of Contents

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, thereunto duly authorized.



|                     |  |  |  |                                                                                     
|-------------------- |  |  |  | ------------------------------------------------------------------------------------
|                     |  |  |  | CERUS CORPORATION                                                                   
|                     |  | 
|Date: April 30, 2009 |  |  |  | /s/ William J. Dawson                                                               
|                     |  |  |  | William J. Dawson                                                                   
|                     |  |  |  | Chief Financial Officer (on behalf of registrant and
as Principal Financial Officer)



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##### Table of Contents

Exhibit Index



|            |  |                                                                                                                                    
|----------- |  | -----------------------------------------------------------------------------------------------------------------------------------
|3.1.1(1)    |  | Restated Certificate of Incorporation of Cerus Corporation, as amended to date.                                                    
|            | 
|3.2(2)      |  | Amended and Restated Bylaws of Cerus.                                                                                              
|            | 
|4.2(3)      |  | Specimen Stock Certificate.                                                                                                        
|            | 
|10.31(5)   |  | Cerus Corporation Change of Control Severance Benefit Plan, as amended.                                                            
|            | 
|10.40(5)   |  | Form of Restricted Stock Unit Agreement under the 1999 Equity Incentive Plan, as amended.                                          
|            | 
|10.41(4)(5) |  | Form of Indemnity Agreement, adopted April 24, 2009.                                                                               
|            | 
|31.1        |  | Certification of the Chief Executive Officer of Cerus pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                   
|            | 
|31.2        |  | Certification of the Chief Financial Officer of Cerus pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                   
|            | 
|32.1(*)     |  | Certification of the Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.



|(1) | Incorporated by reference to Cerus Current Report on Form 8-K (No. 000-21937), dated November 3, 1999.
|--- | -------------------------------------------------------------------------------------------------------



|(2) | Incorporated by reference to Cerus Current Report on Form 8-K (No. 000-21937), dated April 26, 2007.
|--- | -----------------------------------------------------------------------------------------------------



|(3) | Incorporated by reference to Cerus Registration Statement on Form S-1 (File No. 333-11341) and amendments thereto.
|--- | -------------------------------------------------------------------------------------------------------------------



|(4) | Incorporated by reference to Cerus Current Report on Form 8-K (No. 000-21937), dated April 24, 2009.
|--- | -----------------------------------------------------------------------------------------------------



|(5) | Management contract or compensatory arrangement.
|--- | ------------------------------------------------



|(*) | This certification accompanies the Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission, and is not incorporated by reference into any
filing of Cerus Corporation under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form 10-Q), irrespective of any general incorporation language contained in
such filing.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | Filed herewith.
|- | ---------------



42