Dendreon Corporation to Hold Conference Call on Second Quarter 2007 Financial Results

SEATTLE, July 17 /PRNewswire-FirstCall/ -- Dendreon Corporation today announced the Company will release its second quarter financial results on Tuesday, August 7, 2007. Company management will host a conference call at 1:30 PM Pacific Time to provide a review of its second quarter financial results and the following recent events.

* The Company received confirmation that the U.S. Food and Drug Administration will accept either a positive interim or final analysis of survival from its ongoing IMPACT study to amend the Biologics License Application for Provenge(R) (sipuleucel-T), its investigational active cellular immunotherapy for metastatic, androgen-independent prostate cancer.

* The Company continues to have strong patient enrollment in its Phase 3 IMPACT study, which is on track for completion of enrollment this year.

* The Company completed a financing that resulted in gross proceeds of approximately $85 million from a convertible senior subordinated notes offering.

* Presented data from an analysis of Phase 3 Studies (D9901 and D9902A) that showed a prolonged survival benefit for patients who were initially treated with PROVENGE who then went on to receive docetaxel chemotherapy after disease progression.

Time: 4:30 PM ET /1:30 PM PT Date: Tuesday, August 7, 2007 Dial-in: 1-800-665-0430 (domestic) or +1-913-312-1300 (international) Webcast: http://www.dendreon.com (homepage and investor relations section)

A recorded rebroadcast will be available for interested parties unable to participate in the live conference call by dialing 1-888-203-1112 or +1-719-457-0820 for international callers; the conference ID number is 5340267. The replay will be available from 7:30 pm ET on Tuesday, August 7 until 11:59 pm ET on Thursday, August 9. In addition the webcast will be archived for on-demand listening for 30 days at http://www.dendreon.com.

About Dendreon

Dendreon Corporation is a biotechnology company whose mission is to target cancer and transform lives through the discovery, development and commercialization of novel therapeutics that harness the immune system to fight cancer. The Company applies its expertise in antigen identification, engineering and cell processing to produce active cellular immunotherapy product candidates designed to stimulate an immune response. Active cellular immunotherapy holds promise because it may provide patients with a meaningful clinical benefit, such as survival, combined with low toxicity. The Company has its headquarters in Seattle and is traded on the Nasdaq Global Market under the symbol DNDN. For more information about the Company and its programs, visit http://www.dendreon.com.

Except for historical information contained herein, this news release contains forward-looking statements that are subject to risks and uncertainties. Factors that could affect these forward-looking statements include, but are not limited to, market demand for the Company’s securities, pricing and other terms related to the sale of the notes, the efficacy of PROVENGE to treat men suffering from prostate cancer, risks and uncertainties surrounding the presentation of data to the FDA and approval of product applications by the FDA and risks and uncertainties inherent in the process of discovering, developing and commercializing drugs that are safe and effective for use as human therapeutics. Factors that may cause such differences include risks associated with completing our clinical trials, the risk that the safety and/or efficacy results of existing clinical trials or from additional clinical trials for PROVENGE will not support approval for a biologics license, the risk that the FDA may interpret data differently than we do or require more data or a more rigorous analysis of data than expected, the risk that the results of a clinical trial for PROVENGE or other product may not be indicative of results obtained in a later clinical trial, risks that we may lack the financial resources and access to capital to fund required clinical trials or commercialization of PROVENGE, our dependence on the efforts of third parties, and our dependence on intellectual property. Further information on the factors and risks that could affect Dendreon’s business, financial condition and results of operations are contained in Dendreon’s public disclosure filings with the U.S. Securities and Exchange Commission, which are available at www.sec.gov.

Dendreon Corporation

CONTACT: Monique Greer, Sr. Director, Corporate Communications of DendreonCorporation, +1-206-829-1500

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