RecruitingPhase 3Drug trialA Multi-institutional Study for Treatment of Children With Newly Diagnosed Hepatoblastoma Using a Modified PHITT StrategyA Phase 3 multi-institutional study for treatment of children with newly diagnosed hepatoblastoma using a modified Paediatric Hepatic International Tumour Trial (PHITT) strategy incorporating a randomized assessment of sodium thiosulfate as auditory protection for children with localized disease, and response adapted therapy for patients with metastatic disease