The transplantation of myoblasts obtained from a healthy donor is a potential treatment of DMD. Following intramuscular injection, donor myoblasts fuse with the myofibers of the patient, introducing the normal dystrophin gene in them. In a previous Phase 1A clinical trial, the investigators proved that transplantation of myoblasts grown from the muscle biopsy of a healthy donor introduced the normal dystrophin gene in the DMD myofibers, with the consequent expression of the normal dystrophin mRNA and restoration of the dystrophin protein in several myofibers.