Medulloblastoma, Childhood Clinical Trial
Official title:
A Phase I/II Dose-escalation and Expansion Cohort Trial of Intracerebroventricular Radioimmunotherapy Using 177Lu-DTPA-Omburtamab in Pediatric and Adolescent Patients With Recurrent or Refractory Medulloblastoma
Children and adolescents diagnosed with medullablastoma and with recurrent or refractory to frontline therapy will be treated with 177Lu-DTPA-omburtamab, which is a radioactive labelling of a murine monoclonal antibody targeting B7-H3.
Part 1 is a dose-escalation phase with a 3+3 sequential-group design in which patients will receive a dosimetry dose followed by maximum of two 5-week cycles of treatment doses of intracerebroventricular 177Lu-DTPA-omburtamab. Part 2 is a cohort-expansion phase in which patients will receive a maximum of five 5-week cycles of intracerebroventricular 177Lu-DTPA-omburtamab at the recommended dose determined in Part 1. End of treatment will take place within 5 weeks after the last cycle and thereafter the patients will be enter the follow-up period. The patients will be followed for up to 2 years after last dose. ;
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