Below we show the results for TP53, PIK3CA, ERBB2, and PTEN with OS of SCAN‐B patients in clinical biomarker and treatment groups (Figs 5 and EV2), as well as selected pathways (Figs 6 and EV3). This evidence concerns the gene PTEN and spinocerebellar ataxia, autosomal recessive, with axonal neuropathy.