We identified a locus consisting of low-frequency variants in intron 13 of GRID2 associated with time-to-onset of first peripheral neuropathy (PN) indexed by rs17020773 (p = 2.03 × 10−8, all patients, p = 6.36 × 10−9, taxane treated). The gene discussed is GRID2; the disease is poikiloderma with neutropenia.