LEIDEN, NETHERLANDS--(Marketwire - September 29, 2008) - Groningen/Leiden, The Netherlands; Parsippany, USA, 29 September 2008 - DSM Biologics and Crucell N.V. (Euronext, NASDAQ: CRXL; Swiss Exchange: CRX) announced today that the high-titer fed-batch process developed at the PERCIVIA PER.C6® Development Center, their joint venture in Cambridge, USA was recently scaled up to 250 liters by DSM Biologics scientists at their GMP facility in Groningen, The Netherlands. They successfully achieved 8 grams per liter for an IgG expressed by PER.C6® cells using chemically defined cell culture medium in a SUB (single-use bioreactor).