Duchenne muscular dystrophy (DMD) is a progressive, lethal muscle degenerative condition arising from the absence of dystrophin in skeletal and cardiac muscles. 65% of DMD boys have out-of-frame deletions. Modulation of pre-mRNA splicing by exon skipping is the most promising molecular intervention in DMD. 2 Phase Ib and 2 Phase IIa clinical trials (MDEX Consortium in collaboration with Sarepta Th ...