LEIDEN, NETHERLANDS--(Marketwire - December 21, 2007) - Biotech company Pharming Group NV ("Pharming") (NYSE Euronext: PHARM) announced today that, in accordance with European regulations No 726/2004, it has given written notice to the European Medicines Agency (EMEA) for re-examination of the opinion of the CHMP (Committee for Medicinal Products for Human Use) issued last week.