GPC Biotech to Present at UBS Global Life Sciences Conference in New York

20 september 2007 Martinsried/Munich (Germany) and Princeton, N.J., September 20, 2007 - GPC Biotech AG (Frankfurt Stock Exchange: GPC; TecDAX index; NASDAQ: GPCB) today announced that the Company will give a corporate presentation at the upcoming UBS Global Life Sciences Conference in New York, NY. The presentation at the UBS conference will be on Wednesday, September 26 at 9:00 AM ET/ 15:00 CET at the Grand Hyatt Hotel in New York, NY. The presentation will be webcast live and will be accessible through the GPC Biotech Web site at www.gpc-biotech.com. A replay will also be available via the Web site. About GPC Biotech GPC Biotech AG is a publicly traded biopharmaceutical company focused on discovering, developing and commercializing new anticancer drugs. GPC Biotech's lead product candidate satraplatin is currently in a Phase 3 registrational trial in second-line hormone-refractory prostate cancer. Satraplatin was in-licensed from Spectrum Pharmaceuticals, Inc. GPC Biotech has ongoing various drug development and discovery programs and also has an active program to identify and pursue promising drug development in-licensing opportunities. GPC Biotech AG is headquartered in Martinsried/Munich (Germany) and has a wholly owned U.S. subsidiary headquartered in Princeton, New Jersey. For additional information, please visit GPC Biotech's Web site at www.gpc-biotech.com. This press release contains forward-looking statements, which express the current beliefs and expectations of the management of GPC Biotech AG. Such statements are based on current expectations and are subject to risks and uncertainties, many of which are beyond our control, that could cause future results, performance or achievements to differ significantly from the results, performance or achievements expressed or implied by such forward-looking statements. Actual results could differ materially depending on a number of factors, and we caution investors not to place undue reliance on the forward-looking statements contained in this press release. In particular, there can be no guarantee that the results from the final analysis of overall survival data from the SPARC trial will be available when anticipated or sufficient to support regulatory approval in the United States or elsewhere. In addition, there can be no guarantee that additional information relating to the safety, efficacy or tolerability of satraplatin will not be obtained upon further analysis of data from the SPARC trial or analysis of additional data from other ongoing clinical trials for satraplatin. Furthermore, we cannot guarantee that satraplatin will be approved for marketing in a timely manner, if at all, by regulatory authorities nor that, if marketed, satraplatin will be a successful commercial product. Additionally, we cannot guarantee that our efforts to in-license drug development candidates will be successful nor that, if we do in-license candidates, these programs will be successfully developed and approved for marketing. We direct you to GPC Biotech's Annual Report on Form 20-F for the fiscal year ended December 31, 2006 and other reports filed with the U.S. Securities and Exchange Commission for additional details on the important factors that may affect the future results, performance and achievements of GPC Biotech. Forward-looking statements speak only as of the date on which they are made and GPC Biotech undertakes no obligation to update these forward-looking statements, even if new information becomes available in the future. Satraplatin has not yet been approved by the FDA in the U.S., the EMEA in Europe or any other regulatory authority and no conclusions can or should be drawn regarding its safety or effectiveness. Only the relevant regulatory authorities can determine whether satraplatin is safe and effective for the use(s) being investigated. Contacts: GPC Biotech AG 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: +1 609 524 5884 usinvestors@gpc-biotech.com --- End of Message --- GPC Biotech AG Fraunhoferstr. 20 Martinsried 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, Freiverkehr in Bayerische Börse München, Freiverkehr in Börse Düsseldorf, Freiverkehr in Börse Stuttgart, Freiverkehr in Hanseatische Wertpapierbörse zu Hamburg, Geregelter Markt in Frankfurter Wertpapierbörse;