RecruitingDrug trialSafety and Efficacy of Tideglusib in Congenital or Childhood Onset Myotonic DystrophyThis is an open-label phase 2/3 study for individuals with Congenital Myotonic Dystrophy (Congenital DM1) who participated in the preceding AMO-02-MD-2-003 study or individuals with either Congenital or Childhood Onset DM1 who are treatment naïve.