Yakut individuals with the Glutathione S‐transferase theta‐1 (GSTT1)‐null genotype were more likely to have nephrotoxicity in cisplatin‐based chemotherapy in ovarian cancer. Similarly, individuals with heterozygous excision repair cross complementation group 1 (ERCC1) genotypes in the Russian group had frequent nephrotoxicity.72 The gene discussed is ERCC1; the disease is ovarian carcinoma.