NCT04023669 2025-02-07Evaluation of LY2606368 Therapy in Combination With Cyclophosphamide or Gemcitabine for Children and Adolescents With Refractory or Recurrent Group 3/Group 4 or SHH Medulloblastoma Brain TumorsSt. Jude Children's Research HospitalPhase 1 Completed21 enrolled