Cancer drug developer Antisoma plc (LSE: ASM, US OTC: ATSMY) today announces that its aptamer drug AS1411 has been granted Orphan Drug Status in the European Union for the treatment of renal and pancreatic cancers. This will provide a ten-year period of market exclusivity if AS1411 is approved as a treatment for either disease. The drug already has US Orphan Drug Status for both renal and pancreatic cancers.