LEIDEN, NETHERLANDS--(Marketwire - December 17, 2007) - Dutch biotechnology company Crucell N.V. (Euronext, NASDAQ: CRXL, Swiss Exchange: CRX) today announced a non-exclusive STAR® research license agreement with ProFibrix BV. The license with The Netherlands based ProFibrix covers the production of specific forms of human fibrinogen, a protein involved in haemostasis (blood clotting) and tissue repair. Financial details of the agreement were not disclosed.