NCT00001509 A Phase II Trial of All-Trans-Retinoic Acid in Combination With Interferon-Alpha 2a in Children With Recurrent Neuroblastoma or Wilms' Tumor Status COMPLETED Phase PHASE2
NCT00001335 New Therapeutic Strategies for Patients With Ewing's Sarcoma Family of Tumors, High Risk Rhabdomyosarcoma, and Neuroblastoma Status COMPLETED Phase PHASE2