RESEARCH TRIANGLE PARK, NORTH CAROLINA--(CCNMatthews - May 8, 2006) - Adherex Technologies Inc. (TSX:AHX)(AMEX:ADH), a biopharmaceutical company with a portfolio of oncology products under development, today announced that it has completed its previously announced private placement offering of units for gross proceeds of US$6.5 million. The offering includes several new investors in the United States, including Quintiles PharmaBio Development, the strategic partnering group of Quintiles Transnational Corp., the world’s leading pharmaceutical services organization.