Patent 7919472 was granted and assigned to Ionis Pharmaceuticals on April, 2011 by the United States Patent and Trademark Office.
Described herein are gap-widened antisense oligonucleotides having improved therapeutic index as compared to 5-10-5 MOE gapmer antisense oligonucleotides of the same sequence. Also described are methods of reducing a target RNA in an animal using the gap-widened antisense oligonucleotides of the present invention. Further, are methods for selecting a gap-widened antisense oligonucleotides.