Progression-free survival 1 year after treatment initiation of the last patient [clinicaltrials_resource:1dea676cedd46484732f5994f337f38a]

Defined as the time interval from date on treatment until the date of first progression, medulloblastoma-related death or date of last contact for patients who have not experienced an event. All eligible patients who receive any methotrexate will be included in the analysis.

Progression-free survival 1 year after treatment initiation of the last patient [clinicaltrials_resource:1dea676cedd46484732f5994f337f38a]

Defined as the time interval from date on treatment until the date of first progression, medulloblastoma-related death or date of last contact for patients who have not experienced an event. All eligible patients who receive any methotrexate will be included in the analysis.