INDIANAPOLIS (WISH) — About one in every 3,500-5,000 boys worldwide is born with Duchenne Muscular Dystrophy, or DMD, a rare genetic condition that causes muscles to weaken over time. For decades, families have been told there was no cure and few treatment options. However today, new treatments and gene-based therapies are beginning to change what life with Duchenne can look like. Fourteen-year-old Creed Kolasa is funny, competitive, and, like most teens, just wants to have fun.