Overview Study on Sintilimab in Stage IV High Risk Neuroblastoma Status: Not yet recruiting Trial end date: 2023-06-30 Target enrollment: Participant gender: Summary A phase I observational study on the safety and efficacy of treatment of recurrent stage IV high risk neuroblastoma with Nivolumab Phase: Early Phase 1 Details Lead Sponsor: Shanghai Children's Medical CenterTreatments: Nivolumab