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Hitt og þetta 25. september 2006

GPC Biotech Schedules Conference Call for Today, Monday, September 25 to Discuss Positive

Martinsried/Munich (Germany), Waltham, Mass. and Princeton, N.J., September 25, 2006 - GPC Biotech AG (Frankfurt Stock Exchange: GPC; TecDAX 30; NASDAQ: GPCB) today announced that it will hold a conference call today, Monday, September 25, 2006 to discuss positive results from the satraplatin pivotal phase 3 trial in second-line hormone refractory prostate cancer announced yesterday.

The call will be held today at 14:00 CEST/8:00 AM EDT. Participants may listen via live webcast, accessible through the GPC Biotech Web site at www.gpc-biotech.com or via telephone. A replay will be available via the Web site following the live event.

The dial-in numbers for the call are as follows:

European participants: 0049-(0)69-5007-1846 U.S. participants: 1-800-573-4752 (toll-free)

GPC Biotech AG is a biopharmaceutical company discovering and developing new anticancer drugs. GPC Biotech's lead product candidate - satraplatin - has achieved target enrollment in a Phase 3 registrational trial as a second-line chemotherapy treatment in hormone-refractory prostate cancer. The U.S. FDA has granted fast track designation to satraplatin for this indication, and GPC Biotech has begun the rolling NDA submission process for this compound. GPC Biotech is also developing a monoclonal antibody with a novel mechanism-of-action against a variety of lymphoid tumors, currently in Phase 1 clinical development, and has ongoing drug development and discovery programs that leverage its expertise in kinase inhibitors. GPC Biotech AG is headquartered in Martinsried/Munich (Germany), and its wholly owned U.S. subsidiary has sites in Waltham, Massachusetts and Princeton, New Jersey. For additional information, please visit GPC Biotech's Web site at www.gpc-biotech.com.

For further information, please contact:

GPC Biotech AG Fraunhoferstr. 20 82152 Martinsried/Munich, Germany

Martin Braendle Director, Investor Relations & Corporate Communications Phone: +49 (0)89 8565-2693 ir@gpc-biotech.com

In the U.S.: Laurie Doyle Director, Investor Relations & Corporate Communications Phone: +1 781 890 9007 X267 or +1 609 524 1000 usinvestors@gpc-biotech.com

Additional Media Contacts:

In Europe: Maitland Noonan Russo Brian Hudspith Phone: +44 (0)20 7379 5151 bhudspith@maitland.co.uk

In the U.S.: Noonan Russo David Schull Phone: +1 858 546-4810 david.schull@eurorscg.com

--- End of Message --- WKN: 585150; ISIN: DE0005851505; Index: CDAX, MIDCAP, Prime All Share, TecDAX, HDAX, TECH All Share; Listed: Prime Standard in Frankfurter Wertpapierbörse, Freiverkehr in Börse Berlin Bremen, Freiverkehr in Bayerische Börse München, Freiverkehr in Börse Düsseldorf, Freiverkehr in Börse Stuttgart, Freiverkehr in Hanseatische Wertpapierbörse zu Hamburg, Freiverkehr in Niedersächsische Börse zu Hannover, Geregelter Markt in Frankfurter Wertpapierbörse;

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