The GSTP1 105IleIle genotype was previously associated with higher PFS in epithelial ovarian cancer patients treated with CDDP (100 mg/m2) and cyclophosphamide27 and oesophageal cancer patients treated with CDDP and 5-FU/paclitaxel33. The gene discussed is GSTP1; the disease is carcinoma of esophagus.