MARTINSRIED/MUNICH, Germany & PRINCETON, N.J.--(BUSINESS WIRE)--GPC Biotech AG (Frankfurt Stock Exchange: GPC; TecDAX index; NASDAQ: GPCB) today announced that a three-arbitrator panel of the American Arbitration Association, which was appointed to resolve a dispute over claims raised by Spectrum Pharmaceuticals, Inc. against GPC Biotech regarding their co-development and license agreement for satraplatin, has issued its decision in favor of GPC Biotech. The panel unanimously rejected all of Spectrum’s claims and found no violations of the agreement by GPC Biotech. The decision of the panel included the following key rulings: