Press Release:

Dendreon Corporation (Nasdaq: DNDN) announced the following data presentations taking place at the American Urological Association’s (AUA) Annual Meeting in Chicago, as well as a Dendreon-sponsored IMPACT data webcast conference call: (for those of us who will be unable to attend the session at AUA in Chicago)

April 28, 2009, 2:20 p.m. CDT-“A randomized, double-blind, placebo-controlled, multi-center, phase III trial of sipuleucel T in men with metastatic, androgen independent prostatic adenocarcinoma (AIPC).” AUA Late-Breaking Science Forum to be held from 1:00 p.m. to 2:30 p.m. CDT. Room W375 at McCormick Place
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April 28, 2009, 10:30 a.m. to 12:30 p.m. CDT-Abstract #1408: “Preclinical Evaluation of the TRPM8 Ion Channel Agonist D-3263 for Benign Prostatic Hyperplasia.” Poster presentation to occur in the Benign Prostatic Hyperplasia: Basic Research session. Room W375B at McCormick Place
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April 28, 2009, 4:30 p.m. CDT- IMPACT data webcast conference call

The IMPACT (Immunotherapy for Prostate AdenoCarcinoma Treatment) study evaluated PROVENGE® (sipuleucel-T), Dendreon’s investigational product candidate for men with advanced prostate cancer representing the first in a new class of active cellular immunotherapies specifically designed to engage the patient’s own immune system against cancer. Dendreon announced last week that the IMPACT trial met its primary endpoint of improving overall survival compared to a placebo control.

To access the live conference call, dial 1-877-675-4753 (domestic) or 719-325-4864 (international). The call also will be audio webcast and will be available from the Company’s website at www.dendreon.com under the “Investor/Webcasts and Presentations” section. There will be a slide presentation to accompany the call, which will also be available on this section of the Dendreon website. A recorded rebroadcast will be available for interested parties unable to participate in the live conference call by dialing 1-888-203-1112 (domestic) or 719-457-0820 (international); the conference ID number is 6483399. The replay will be available from 8:00 p.m. ET, April 28, 2009 until midnight April 29, 2009. In addition, the webcast will be archived for on-demand listening for 30 days at www.dendreon.com.