Sittard/Leiden, The Netherlands, December 18, 2007 - DSM Biologics, a business unit of DSM Pharmaceutical Products, and Dutch biotechnology company Crucell N.V. (Euronext, NASDAQ: CRXL; Swiss Exchange: CRX) today announced a PER.C6® license agreement with biopharmaceutical company Medarex, Inc. This license agreement allows Medarex to use the PER.C6® production platform in its antibody research. Financial details of the agreement were not disclosed.