Analyzing expression data from the Individualized Therapy For Relapsed Malignancies in Childhood (INFORM) register study using the R2 bioinformatic data analysis platform, we could confirm that neuroblastoma patient samples sensitive to APR-246/PRIMA-1 are characterized by very low SLC7A11 levels, as compared to most other pediatric entities. Here, SLC7A11 is linked to neuroblastoma.