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

FORM 10-Q

Commission File No. 0-16614

PONIARD PHARMACEUTICALS, INC.
(Exact name of Registrant as specified in its charter)

        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 ý    No o

        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 definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.

        Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o    No ý

        As of August 1, 2008, 34,687,724 shares of the Registrant's common stock, $.02 par value per share, were outstanding.

TABLE OF CONTENTS

QUARTERLY REPORT ON FORM 10-Q
FOR THE QUARTER ENDED JUNE 30, 2008

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PART I. FINANCIAL INFORMATION

Item 1.    Financial Statements

PONIARD PHARMACEUTICALS, INC. AND SUBSIDIARY
CONDENSED CONSOLIDATED BALANCE SHEETS
(dollars in thousands, except par value)
(unaudited)

See notes to the condensed consolidated financial statements.

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PONIARD PHARMACEUTICALS, INC. AND SUBSIDIARY
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(dollars in thousands, except per share data)
(unaudited)

See notes to the condensed consolidated financial statements.

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PONIARD PHARMACEUTICALS, INC. AND SUBSIDIARY
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(dollars in thousands)
(unaudited)

See notes to the condensed consolidated financial statements.

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PONIARD PHARMACEUTICALS, INC. AND SUBSIDIARY

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 1.    Basis of presentation

        The accompanying unaudited condensed consolidated financial statements include the accounts of Poniard Pharmaceuticals, Inc. and subsidiary (the Company). All intercompany balances and transactions have been eliminated in consolidation. The Company has historically experienced recurring operating losses and negative cash flows from operations. As of June 30, 2008, the Company had net working capital of $64,381,000 and had an accumulated deficit of $335,573,000 with total shareholders' equity of $70,444,000.

        The accompanying condensed consolidated financial statements contained herein have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Certain information and note disclosures normally included in annual financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to those rules and regulations, although the Company believes that the disclosures made are adequate to make the information presented not misleading. These financial statements should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2007 filed with the SEC on March 13, 2008, and available on the SEC's website, www.sec.gov.

        The accompanying condensed consolidated financial statements are unaudited. In the opinion of the Company's management, the condensed consolidated financial statements reflect all adjustments, consisting only of normal recurring accruals necessary to present fairly the Company's financial position and cash flows as of June 30, 2008 and the results of operations for the three and six months ended June 30, 2008 and 2007.

        The results of operations for the periods ended June 30, 2008 and 2007 are not necessarily indicative of the expected operating results for the full year.

         Estimates and Uncertainties:    The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Note 2.    Fair value measurements

        The Company holds available-for-sale securities that are measured at fair value which is determined on a recurring basis. These securities are classified within Level 1 of the fair value hierarchy prescribed by Statement of Financial Accounting Standard (SFAS) No. 157, "Fair Value Measurements," because the value of the securities is based on quoted market prices or broker/dealer quotations.

        The SFAS No. 157 framework requires fair value to be determined based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. SFAS No. 157 establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring

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PONIARD PHARMACEUTICALS, INC. AND SUBSIDIARY

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) (Continued)

Note 2.    Fair value measurements (Continued)

fair value. The standard describes the following three levels of inputs that may be used to measure fair value:

•

Level 1—Quoted prices in active markets for identical assets or liabilities.



•

Level 2—Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.



•

Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

        The determination of a financial instrument's level within the fair value hierarchy is based on an assessment of the lowest level of any input that is significant to the fair value measurement. The Company utilizes the market approach to measure fair value for its financial assets and liabilities. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. The Company's investment securities, consisting of debt securities, are classified as available-for-sale. Unrealized holding gains or losses on these securities are included in other comprehensive income. Realized gains and losses and declines in value judged to be other-than-temporary (of which there have been none to date) on available-for-sale securities are included in interest income.

        The following table presents a summary of the Company's assets and liabilities at fair value on a recurring basis:

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PONIARD PHARMACEUTICALS, INC. AND SUBSIDIARY

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) (Continued)

Note 3.    Investment securities

        Investment securities consisted of the following at June 30, 2008 (in thousands):

        The Company's management has concluded that the unrealized losses are temporary, as the duration of the decline in the value of the investments has been relatively short; the extent of the decline, both in dollars and percentage of cost is not severe; and the Company has the ability and intent to hold the investments until at least substantially all of the cost of the investments is recovered.

Note 4.    Picoplatin license and amendment

        The Company has entered into an exclusive worldwide license, as amended, with Genzyme Corporation (successor to AnorMED, Inc.) for the development and commercial sale of picoplatin. Under that license, the Company is solely responsible for the development and commercialization of picoplatin. Genzyme retains the right, at the Company's cost, to prosecute its patent applications and maintain all licensed patents. The parties executed the license agreement in April 2004, at which time the Company paid a one-time up-front payment of $1,000,000 in common stock and $1,000,000 in cash. The original agreement excluded Japan from the licensed territory and provided for $13,000,000 in development and commercialization milestones, payable in cash or a combination of cash and common stock, and a royalty rate of up to 15% on product net sales after regulatory approval. The parties amended the license agreement on September 18, 2006, modifying several key financial terms and expanding the licensed territory to include Japan, thereby providing the Company worldwide rights. In consideration of the amendment, the Company paid Genzyme $5,000,000 in cash on October 12, 2006 and an additional $5,000,000 in cash on March 30, 2007. The amendment eliminated all development milestone payments to Genzyme. Genzyme remains entitled to receive up to $5,000,000 in commercialization milestones upon the attainment of certain levels of annual net sales of picoplatin after regulatory approval. The amendment also reduced the royalty payable to Genzyme to a maximum of 9% of annual net product sales. In addition, the amendment reduced the sharing of sublicense revenues with Genzyme on and after September 18, 2007.

        The Company accounted for all payments made in consideration of the picoplatin license, as amended, by capitalizing them as an intangible asset. The Company's capitalization of the total $12,000,000 of picoplatin license payments is based on the Company's reasonable expectation at the time of acquisition and through the date of the amendment that the intravenous formulation of picoplatin, as it existed at the time of the acquisition of the picoplatin license and the license amendment, would be used in research and development (R&D) projects and therefore had alternative

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PONIARD PHARMACEUTICALS, INC. AND SUBSIDIARY

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) (Continued)

Note 4.    Picoplatin license and amendment (Continued)

future uses in the treatment of different cancer indications. At the time of acquisition, the Company planned to use intravenous picoplatin in a Phase II clinical trial in patients with small cell lung cancer and reasonably expected that the intravenous formulation could be used in additional, currently identifiable R&D projects in the form of clinical trials for other solid tumor cancer indications, such as prostate and colorectal cancers.

        The Company determined the original useful life of the picoplatin intangible asset in accordance with the requirements of FASB SFAS No. 142, "Goodwill and Other Assets." The Company, at the time of acquisition of the picoplatin license, reasonably anticipated using intravenous picoplatin in clinical trials that could be conducted during the remaining term of the primary patent, which is active through 2016. The Company concluded that the twelve years remaining for the primary patent term was the appropriate useful life for the picoplatin intangible asset, in satisfaction of the expected use and legal life provisions of SFAS No. 142, and is amortizing the initial $2,000,000 license payment over this twelve year useful life beginning in April 2004. The Company concluded that no change in the twelve-year useful life of the picoplatin intangible asset occurred as a result of the 2006 license amendment and is, therefore, continuing to amortize the initial $2,000,000 license payment over the twelve year useful life and is amortizing the license amendment payment of $10,000,000 over the remainder of the twelve year useful life of the picoplatin intangible asset.

        Licensed Products consists of the picoplatin amortizable intangible asset with a gross amount of $12,000,000 and net of accumulated amortization of $2,586,000 and $1,979,000 at June 30, 2008 and December 31, 2007, respectively.

Note 5.    Net loss per common share

        Basic and diluted loss per share are based on net loss applicable to common shares, which is comprised of net loss and preferred stock dividends in all periods presented. Shares used to calculate basic loss per share are based on the weighted average number of common shares outstanding during the period. Shares used to calculate diluted loss per share are based on the potential dilution that would occur upon the exercise or conversion of securities into common stock using the treasury stock method. The calculation of diluted loss per share excludes the effect of the following stock options and warrants to purchase additional shares of common stock because the share increments would not be dilutive.

        In addition, 39,015 shares of common stock that would be issuable upon conversion of the Company's Series 1 preferred stock are not included in the calculation of diluted loss per share for the periods ended June 30, 2008 and 2007, respectively, because the effect of including such shares would not be dilutive.

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PONIARD PHARMACEUTICALS, INC. AND SUBSIDIARY

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) (Continued)

Note 6.    Stock-based compensation

        A summary of the fully vested stock options currently exercisable as of June 30, 2008 is presented below (shares and aggregate intrinsic value in thousands):

        The Company recorded the following amounts of stock-based compensation expense, not including expense for options granted to non-employee consultants, for the periods presented (in thousands):

        The amounts for the three and six months ended June 30, 2008 reflect the grant of stock options during the first quarter of 2008 to Company officers to purchase an aggregate of 460,000 shares of common stock. Certain options that were granted to officers of the Company during 2006 and 2007 vest 50% in equal monthly installments over four years from the date of grant and vest 50% on the seven-year anniversary of the date of grant, subject to accelerated vesting of up to 25% of such portion of the option, to the extent of the Company's achievement of annual performance goals established under its annual incentive plan, at the discretion of the equity awards subcommittee of the Company's board of directors. Based on the overall achievement of corporate goals in 2006 and 2007, the equity awards subcommittee accelerated vesting with respect to 20% of the shares subject to the seven-year vesting in both the second quarter of 2007 and the first quarter of 2008, resulting in cumulative accelerated vesting of 40% of the shares subject to the seven-year vesting as of June 30, 2008.

        No income tax benefit has been recorded for stock option exercises as the Company has a full valuation allowance and management has concluded it is more likely than not that the net deferred tax asset will not be realized. As of June 30, 2008, total unrecognized compensation costs related to stock options was $15,738,000, which is expected to be recognized over a weighted average period of approximately three years.

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PONIARD PHARMACEUTICALS, INC. AND SUBSIDIARY

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) (Continued)

Note 6.    Stock-based compensation (Continued)

        Estimated fair values of stock options granted have been determined using the Black-Scholes option pricing model with the following assumptions for the periods presented:

Note 7.    Comprehensive loss

        The Company's comprehensive loss for the three months ended June 30, 2008 is summarized as follows (dollars in thousands):

Note 8.    Recent accounting pronouncements

        In September 2006, the Financial Accounting Standards Board (FASB) issued SFAS No. 157, "Fair Value Measurements," for all financial instruments and non-financial instruments accounted for at fair value on a recurring basis. SFAS No. 157 introduces a framework for measuring fair value and expands disclosure requirements about fair value measurements. SFAS No. 157 applies to other accounting pronouncements that require or permit fair value measurements, but does not in itself require any new fair value measurements. SFAS No. 157 for financial assets and liabilities is effective for fiscal years beginning after November 15, 2007. The Company adopted the standard for those assets and liabilities as of January 1, 2008 with no material impact on its consolidated financial statements.

        In March 2008, the FASB issued SFAS No. 161, "Disclosures about Derivative Instruments and Hedging Activities." SFAS No. 161 requires companies with derivative instruments to disclose information that should enable financial statement users to understand how and why a company uses derivative instruments, how derivative instruments and related hedged items are accounted for under SFAS No. 133, "Accounting for Derivative Instruments and Hedging Activities," and how derivative instruments and related hedged items affect a company's financial position, financial performance and cash flows. SFAS No. 161 is effective for financial statements issued for fiscal years beginning after December 15, 2008, and interim periods within those fiscal years. The Company is currently evaluating this statement and its impact, if any, on the Company's consolidated financial statements.

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PONIARD PHARMACEUTICALS, INC. AND SUBSIDIARY

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) (Continued)

Note 8.    Recent accounting pronouncements (Continued)

        In April 2008, the FASB issued FASB Staff Position (FSP) FAS 142-3, "Determination of the Useful Life of Intangible Assets." This FSP amends the factors that should be considered in developing renewal or extension assumptions used to determine the useful life of a recognized intangible asset under SFAS No. 142, "Goodwill and Other Intangible Assets." The intent of this FSP is to improve the consistency between the useful life of a recognized intangible asset under SFAS No. 142 and the period of expected cash flows used to measure the fair value of the asset under SFAS No. 141R, and other GAAP. FSP FAS 142-3 is effective for financial statements issued for fiscal years beginning after December 15, 2008, and interim periods within those fiscal years. Early adoption is prohibited. The Company is currently evaluating this statement and its impact, if any, on the Company's consolidated financial statements.

        In December 2007, the FASB issued SFAS No. 141R (revised 2007), "Business Combinations," which replaces SFAS No. 141. The statement retains the purchase method of accounting for acquisitions, but requires a number of changes, including changes in the way assets and liabilities are recognized in the accounting for a purchase. It also changes the recognition of assets acquired and liabilities assumed arising from contingencies, requires the capitalization of in-process research and development at fair value, and requires the expensing of acquisition-related costs as incurred. SFAS No. 141R is effective for acquisitions occurring in fiscal years beginning after December 15, 2008. While the Company is currently evaluating this statement and its impact, if any, on the Company's consolidated financial statements, it believes that the adoption of SFAS No. 141R would have an impact on the accounting for any future acquisition, if one were to occur.

        In June 2007, the FASB ratified the EITF consensus on EITF Issue No. 07-3, "Accounting for Nonrefundable Advance Payments for Goods or Services Received for Use in Future Research and Development Activities." EITF Issue No. 07-3 requires that nonrefundable advance payments for goods or services that will be used or rendered for future research and development activities should be deferred and capitalized. Such amounts should be recognized as an expense as the related goods are delivered or the related services are performed. Entities should continue to evaluate whether they expect the goods to be delivered or services to be rendered. If an entity does not expect the goods to be delivered or services to be rendered, the capitalized advance payment should be charged to expense. The Company adopted EITF Issue No. 07-3 on January 1, 2008, resulting in the temporary deferral of amounts incurred for research and development activities from the time payouts are made until the time goods or services are provided.

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Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations

Important Information Regarding Forward-Looking Statements

        This Form 10-Q contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements relate to future events or future financial performance and are subject to change based on various important factors, many of which are beyond our control. In some cases, you can identify forward-looking statements by terminology such as "currently," "may," "will," "should," "expect," "plan," "intend," "anticipate," "believe," "target," "estimate," "predict," "potential," "propose" or "continue," the negative of these terms or other terminology. These statements are only predictions. Actual events or results may differ materially. In evaluating these statements, you should specifically consider various factors described below in the section entitled "Risk Factors." These factors may cause our actual results to differ materially from any forward-looking statements contained in this report or otherwise made by us.

        Although we believe the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, levels of activity, performance or achievements. You should not place undue reliance on our forward-looking statements, which speak only as of the date of this report. We undertake no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date of this report, or to reflect the occurrence of unanticipated events.

Critical Accounting Policies and Estimates

        Our critical accounting policies and estimates have not materially changed from those reported in our Annual Report on Form 10-K for the year ended December 31, 2007 filed with the SEC on March 13, 2008. For a more complete description, please refer to our Annual Report on Form 10-K.

Results of Operations

Three and Six Months Ended June 30, 2008 Compared to the Three and Six Months Ended June 30, 2007

        We had no revenue for the three and six months ended June 30, 2008 and 2007, respectively.

        Total operating expenses for the second quarter of 2008 increased 40% to $12.9 million, from $9.2 million for the second quarter of 2007, and increased 37% to $23.4 million for the six months ended June 30, 2008, from $17.1 million for the same period in 2007.

        Research and development (R&D) expenses increased 57% to $9.2 million for the second quarter of 2008, from $5.8 million for the second quarter of 2007. R&D expenses increased 37% to $15.5 million for the six months ended June 30, 2008, from $11.3 million for the same period in 2007. The increase in R&D expenses for the three and six months ended June 30, 2008 resulted primarily from increased costs associated with our picoplatin clinical trials and pre-clinical programs.

        General and administrative (G&A) expenses increased 10% to $3.7 million for the second quarter of 2008, from $3.4 million for the second quarter of 2007. G&A expenses increased 37% to $7.9 million for the six months ended June 30, 2008, from $5.8 million for the same period in 2007. The increases in G&A expenses for the three months ended June 30, 2008 are due primarily to higher personnel costs and increased costs for consultants. The increases in G&A expenses for the six months ended June 30, 2008 are due primarily to higher stock-based compensation expense and increased personnel costs.

        Cash, cash equivalents and investment securities as of June 30, 2008 were $75.1 million, compared with $92.6 million at December 31, 2007. On April 30, 2007, we received approximately $70 million in net proceeds from a public offering of 11.8 million shares of our common stock. We are using these proceeds for the continued clinical development of picoplatin, including funding our ongoing clinical

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trials in small cell lung cancer, advanced colorectal cancer and hormone-refractory prostate cancer, for discovery and research for new product candidates, and for general corporate purposes, including working capital. We believe that our current cash and cash equivalent balances will provide adequate resources to fund operations at least through the second quarter of 2009.

        As discussed below, we currently are conducting multiple ongoing clinical studies of picoplatin and, in April 2007, treated our first patient in our Phase III pivotal clinical study in small cell lung cancer. These clinical studies, as well as increases in personnel, initiation of internal research programs and plans for continued future growth, are expected to result in significant increases in our operating costs, including research and development and administrative expenses. We will require substantial additional funding to support our picoplatin and other proposed clinical development programs and to fund our operations. In the event that we do not obtain sufficient additional funds, we may be required to delay, reduce or curtail the scope of our picoplatin and other product development activities.

Major Research and Development Programs

        Our major research and development program is picoplatin, a new generation platinum-based chemotherapeutic designed to overcome platinum resistance in the treatment of solid tumors. We completed patient enrollment in our Phase II clinical study of picoplatin in small cell lung cancer in August 2006 and, based on positive interim median overall survival data from that ongoing study, we initiated a Phase III pivotal clinical trial of picoplatin in small cell lung cancer in April 2007. In May 2006, we treated our first patients in separate Phase I/II clinical studies evaluating picoplatin as a first-line treatment of advanced colorectal cancer and hormone-refractory prostate cancer. We initiated the Phase II component of our prostate cancer study in July 2007 and completed enrollment in December 2007. We initiated enrollment in the Phase II component of our colorectal cancer study in November 2007 and completed enrollment in May 2008. In April 2007, we initiated a Phase I study of an oral formulation of picoplatin in advanced solid tumors.

        As of June 30, 2008, we have incurred external costs of approximately $40.3 million in connection with our entire picoplatin clinical program. Total estimated future costs of our picoplatin Phase II and Phase III clinical trials in small cell lung cancer are in the ranges of $0.3 million to $0.5 million and $41.0 million to $47.0 million, respectively, through 2009, including the cost of drug supply. Total estimated future costs of our picoplatin Phase II clinical trial in colorectal cancer and our Phase II clinical trial in hormone-refractory prostate cancer are in the ranges of $7.0 million to $10.0 million and $3.0 million to $5.0 million, respectively, through 2009, including the cost of drug supply. Total estimated future costs of our Phase I clinical trial in oral picoplatin are in the range of $0.6 million to $0.8 million through 2009, including the cost of drug supply. These costs could be substantially higher if we repeat, revise or expand the scope of any of our clinical trials. Material cash inflows relating to our picoplatin development will not commence unless and until we complete required clinical trials and obtain U.S. Food and Drug Administration, or FDA, and foreign regulatory agency marketing approvals, and then only if picoplatin finds acceptance in the marketplace. To date, we have not received any revenues from product sales of picoplatin.

        The risks and uncertainties associated with completing the development of picoplatin on schedule, or at all, include the following, as well as the other risks and uncertainties described in this report and in our Annual Report on Form 10-K for the year ended December 31, 2007:

•

we may not have adequate funds to complete the development of picoplatin;



•

we may be unable to secure adequate supplies of picoplatin active pharmaceutical ingredient, or API, and finished drug product in order to complete our clinical trials;



•

picoplatin may not be shown to be safe and efficacious in clinical trials; and

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•

we may be unable to obtain regulatory approvals of the drug or may be unable to obtain such approvals on a timely basis.

        If we fail to obtain marketing approvals for picoplatin, are unable to secure adequate clinical and commercial supplies of picoplatin API and finished drug product, or do not complete development and obtain United States and foreign regulatory agency approvals on a timely basis, our operations, financial position and liquidity could be severely impaired, including as follows:

•

we would not earn any sales revenue from picoplatin, which would increase the likelihood that we would need to obtain additional financing for our other research and development efforts; and



•

our reputation among investors might be harmed, which could make it more difficult for us to obtain equity capital on attractive terms, or at all.

        Because of the many risks and uncertainties relating to completion of clinical trials, receipt of marketing approvals and acceptance in the marketplace, we cannot predict the period in which material cash inflows from our picoplatin program will commence, if ever.

         Summary of Research and Development Costs.    Our development administration overhead costs, consisting of rent, utilities, consulting fees, patent costs and other various overhead costs, are included in total research and development expense for each period, but are not allocated among our various projects. Our total research and development costs include the costs of various research efforts directed toward the identification and evaluation of future product candidates. These other research projects are preclinical and not considered major projects. Our total research and development costs are summarized below:

Summary of Research and Development Costs

Liquidity and Capital Resources

        We have historically experienced recurring operating losses and negative cash flows from operations. As of June 30, 2008, we had net working capital of $64.4 million, an accumulated deficit of $335.6 million and total shareholders' equity of $70.4 million.

        We have financed our operations primarily through the sale of equity securities, technology licensing, collaborative agreements and debt instruments. We invest excess cash in investment securities that will be used to fund future operating costs. Cash used for operating activities for the six months ended June 30, 2008 totaled $15.2 million. There were no revenues or other income sources for the quarter ended June 30, 2008. Cash, cash equivalents and investment securities, net of restricted cash of $0.3 million, totaled $75.1 million at June 30, 2008 compared to $92.6 million at December 31, 2007. We believe that our current cash, cash equivalents and investment securities will provide adequate resources to fund operations at least through the second quarter of 2009.

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        On April 30, 2007, we completed a public offering of 11.8 million shares of our common stock at a price of $6.33 per share. Net proceeds of the public offering were $70.0 million. On April 26, 2006, we completed an equity financing, pursuant to which we issued to a group of institutional and other accredited investors an aggregate of 15.5 million shares of common stock at a cash purchase price of $4.20 per share. Investors in the 2006 equity financing also received five-year warrants to purchase an aggregate of 4.6 million shares of common stock at an exercise price of $4.62 per share. We received $62.0 million in net proceeds from the 2006 equity financing, which, along with the net proceeds received from our April 2007 public offering, we intend to use to fund the continued clinical and preclinical development of picoplatin, including funding our ongoing clinical trials in small cell lung cancer, advanced colorectal cancer and hormone-refractory prostate cancer, for discovery and research for new product candidates, and for general corporate purposes, including working capital.

        On October 1, 2007, we sold our radiopharmaceutical manufacturing plant and other associated assets located in Denton, Texas. The sale resulted in net sales proceeds of $2.7 million, with a net gain of $0.1 million.

        On October 25, 2006, we entered into a loan and security agreement with Silicon Valley Bank and General Electric Capital (successor to Merrill Lynch Capital), pursuant to which we obtained a $15.0 million capital loan that matures on April 1, 2010. We are required to pay a 7.67% fixed interest rate on the outstanding principal balance plus a $1.35 million additional payment upon the maturity date of the loan. The loan is secured by a first lien on substantially all of our non-intellectual property assets. The loan agreement contains restrictions on our ability to, among other things, dispose of certain assets, engage in certain mergers and acquisition transactions, incur indebtedness, create liens on assets, make investments, pay dividends and repurchase stock. The loan agreement also contains covenants requiring us to maintain unrestricted cash of $7.5 million during the loan term. The loan contains events of default that include, among other things, nonpayment of principal and interest or fees, breaches of covenants, material adverse changes, bankruptcy and insolvency events, cross defaults to other indebtedness, material judgments, inaccuracy of representations and warranties and events constituting a change of control. The occurrence of an event of default would increase the applicable rate of interest by 5% and could result in acceleration of our payment obligations under the loan agreement. During the first six months of 2008, we paid an aggregate of $2.4 million in principal and interest on the loan. At June 30, 2008, the outstanding principal amount of the loan was $9.0 million.

        During the first six months of 2008, we paid total rent (base rent and additional rent based on our share of facility common operating expenses) of $757,000 under the operating leases for our South San Francisco headquarters facility and our Seattle facility. Of this amount, $584,000 represents total aggregate minimum lease payments under these leases.

        On March 28, 2008, we entered into a commercial picoplatin API manufacturing agreement with W.C. Heraeus GmbH, which is also the manufacturer of picoplatin API for our clinical trials. The costs to Heraeus for the purchase and set-up of dedicated equipment, estimated to be approximately $1.5 million, will be repaid by us in the form of a surcharge on an agreed upon amount of the picoplatin API ordered and delivered on or before December 31, 2013. If we order and take delivery of less than the agreed upon amount of picoplatin API through December 31, 2013, we will be obligated to pay the balance of the dedicated equipment cost as of that date.

        If we are successful in our efforts to commercialize picoplatin, we would, under our amended license agreement with Genzyme Corporation, be required to pay Genzyme up to $5.0 million in commercialization milestones upon the attainment of certain levels of annual net sales of picoplatin. Genzyme also would be entitled to royalty payments of up to 9% of annual net product sales.

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        We will require substantial additional funding to develop and commercialize picoplatin and any other proposed products and to fund our operations. Management is continuously exploring financing alternatives, including:

•

raising additional capital through the public or private sale of equity or debt securities or through the establishment of credit or other funding facilities; and



•

entering into strategic collaborations, which may include joint ventures or partnerships for product development and commercialization, merger, sale of assets or other similar transactions.

        Our actual capital requirements will depend upon numerous factors, including:

•

the scope and timing of our picoplatin clinical program and other research and development efforts, including the progress and costs of our ongoing Phase II and Phase III clinical trials of picoplatin in small cell lung cancer, our ongoing Phase II clinical trials in advanced colorectal and prostate cancers, as well as our Phase I clinical trial of picoplatin (oral formulation) in solid tumors;



•

our ability to obtain clinical supplies of picoplatin API and finished drug product in a timely and cost-effective manner;



•

actions taken by the FDA and other regulatory authorities;



•

the timing and amount of any milestone or other payments we might receive from or be required to pay to potential strategic partners;



•

our degree of success in commercializing picoplatin or any other product candidates;



•

the emergence of competing technologies and products and other adverse market developments;



•

the acquisition or in-licensing of other products or intellectual property;



•

the costs incurred in connection with the planned expansion of our workforce;



•

the costs of any research collaborations or strategic partnerships established;



•

the costs of preparing, filing, prosecuting, maintaining and enforcing patent claims and other intellectual property rights; and



•

the costs of performing our obligations under the loan with Silicon Valley Bank and General Electric Capital, including the cost of interest and other payment obligations and potential penalties and the cost of complying with unrestricted cash requirements and other covenants under the loan agreement.

        There can be no assurance that we will be able to raise additional capital or enter into relationships with corporate partners on a timely basis, on favorable terms, or at all. Conditions in the capital markets in general, and in the life science capital market specifically, may affect our potential financing sources and opportunities for strategic partnering. Our financial statements are prepared on a going concern basis; however, our inability to obtain additional cash as needed could have a material adverse effect on our financial position, results of operations and our ability to continue in existence. Our consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

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Item 3.    Quantitative and Qualitative Disclosures about Market Risk

        Our market rate risks at June 30, 2008 have not changed materially from those discussed in Item 7A of our Form 10-K for the year ended December 31, 2007.

Item 4.    Controls and Procedures

        Under the supervision and with the participation of the Company's management, including the Company's Chief Executive Officer and Chief Financial Officer, the Company has evaluated the effectiveness and design of its disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e)) as of June 30, 2008, to ensure that the information disclosed by the Company in the reports that the Company files or submits under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the rules and forms. Based on this evaluation, the Chief Executive Officer and the Chief Financial Officer have concluded that, as of June 30, 2008, these disclosure controls and procedures were effective.

        There were no changes in the Company's internal control over financial reporting that occurred during the quarter that have materially affected, or are reasonably likely to materially affect, the Company's control over financial reporting.

Limitations on the Effectiveness of Controls

        The Company's management, including its Chief Executive Officer and its Chief Financial Officer, does not expect that the Company's disclosure controls or internal controls will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of that control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of control must be considered relative to their costs. Because of the inherent limitation in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected. These inherent limitations include the reality that judgments in decision-making can be faulty, and breakdowns can occur because of simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more persons, or by management override of the control. The design of any system of controls is also based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Over time, controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with the policies and procedures. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

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PART II. OTHER INFORMATION

Item 1A.    Risk Factors

        Our Annual Report on Form 10-K for the year ended December 31, 2007 filed with the SEC on March 13, 2008, contains a detailed discussion of certain risk factors that could materially adversely affect our business, operating results and/or financial condition. In addition to other information contained in this report, you should carefully consider the potential risks or uncertainties that we have identified in Part I, "Item 1A, Risk Factors," in our Form 10-K. Other than the updated risk factor set forth below, there have not been any material changes in the risk factors disclosed in our Form 10-K. These risk factors are not the only ones affecting our company. Additional risks and uncertainties not currently deemed to be material also may materially or adversely affect our business, financial condition or results of operations.

We are dependent on third-party suppliers for the timely delivery of materials and services and may experience future interruptions in supply.

        For our picoplatin product candidate to be successful, we need sufficient, reliable and affordable supplies of the picoplatin API and finished drug product. Sources of these supplies may be limited, and third-party suppliers may be unable to manufacture picoplatin API and finished drug product in amounts and at prices necessary to successfully commercialize our picoplatin product. Moreover, third-party manufacturers must continuously adhere to current Good Manufacturing Practice, or cGMP, regulations enforced by the FDA through its facilities inspection program. If the facilities of these manufacturers cannot pass a pre-approval plant inspection, the FDA will not grant an NDA for our proposed products. In complying with cGMP and foreign regulatory requirements, any of our third-party manufacturers will be obligated to expend time, money and effort in production, record-keeping and quality control to assure that our products meet applicable specifications and other requirements. If any of our third-party manufacturers or suppliers fails to comply with these requirements, we may be subject to regulatory action.

        We have limited experience in drug formulation or manufacturing, and we lack the resources and capability to manufacture picoplatin or any other product candidate on a clinical or commercial scale. As a result, we rely on third parties to manufacture picoplatin API and finished drug product for our clinical trials. The drug product has been demonstrated to be stable for up to 30 months from the date of manufacture. We currently have separate agreements with one supplier each of picoplatin API and finished drug product for our clinical trials. Manufacturing services under these agreements are provided on a purchase order, fixed-fee basis. Unless earlier terminated, each agreement continues for an initial term ending December 31, 2009 and may be extended beyond the initial term upon agreement of the parties. The agreements generally provide that they may be terminated by either party if there is a material breach by the other party that remains uncured or in the event of solvency or bankruptcy of the other party. We may terminate the finished drug supply agreement at any time with one year's advance notice. We may terminate the API clinical manufacturing agreement if there is a change in control of the manufacturer.

        On March 28, 2008, we entered into a commercial picoplatin API manufacturing agreement with W.C. Heraeus GmbH. Under this agreement, Heraeus, which is the manufacturer of picoplatin API for our clinical trials, will produce picoplatin API for final dosage pharmaceutical products which we intend to use for commercial purposes and may use for additional clinical trials and development activities. Manufacturing services under the agreement are provided on a purchase order, fixed-fee basis. The agreement continues for an initial term ending December 31, 2013, subject to extension, and generally may be terminated on thirty days' prior written notice upon mutual agreement of the parties or by either party if there is a breach by the other party that remains uncured, if the other party files for bankruptcy or becomes insolvent, or if the other party or its personnel performing services under the

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agreement is debarred. In addition, we may terminate the agreement if there is a change of control of Heraeus.

        We have no assurance that our current suppliers will be able to manufacture sufficient picoplatin API and/or finished drug product on a timely or cost-effective basis at all times in the future. If we are required to seek alternative manufacturers, we may incur significant additional costs and suffer delays in, or be prevented from, completing or initiating our ongoing or planned clinical trials and commercialization strategy.

        We also rely on third-party contractors to perform for us, or assist us with, the set-up, conduct, support and management of our clinical studies. Because these contractors provide specialized services, their activities and quality of performance may be outside our direct control. If these contractors do not perform their contractual duties or obligations, do not meet expected deadlines, or need to be replaced, or if the quality or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our clinical trial protocols or for any other reasons, we may need to enter into new arrangements with alternative third parties. If any of these circumstances were to occur, our clinical trials may be extended, delayed or terminated or may need to be repeated, we may not be able to obtain regulatory approval for or commercialize the product candidate being tested in such trials, and we may be subject to regulatory action.

Item 4.    Submission of Matters to a Vote of Security Holders

        The Company's annual meeting of shareholders was held on June 24, 2008. The following nine nominees were reelected as directors, each to hold office until his successor is elected and qualified, by the vote set forth below:

        The proposal to ratify the appointment of KPMG LLP as the Company's independent registered public accounting firm for 2008 was approved by the vote set forth below:

Item 6.    Exhibits

(a)

Exhibits—See Exhibit Index below.

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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.

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EXHIBIT INDEX

(A)

Filed herewith.

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QuickLinks

Item 1. Financial Statements

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

Item 3. Quantitative and Qualitative Disclosures about Market Risk
Item 4. Controls and Procedures

Item 1A. Risk Factors
Item 4. Submission of Matters to a Vote of Security Holders
Item 6. Exhibits