A novel class of pharmaceuticals which comprises a Locked Nucleic Acid
(LNA) which can be used in antisense therapy. These novel
oligonucleotides have improved antisense properties. The novel
oligonucleotides are composed of at least one LNA selected from
beta-D-thio/amino-LNA or alpha-L-oxy/thio/amino-LNA. The oligonucleotides
comprising LNA may also include DNA and/or RNA nucleotides.