UGT1A1-Based Irinotecan Therapy for Locally Advanced Rectal Cancer

"Patients with locally advanced rectal cancer treated with irinotecan-based chemoradiotherapy were enrolled in this study. The dose of irinotecan is determined by the genotype of UGT1A1.Concurrent Chemoradiotherapy:~Radiation: 50Gy/25Fx; Capecitabine: 625mg/m2 bid Monday-Friday per week; Irinotecan: 80mg/m2 (UGT1A1\*28 and \*6: 6/6+GG) or 65mg/m2 (UGT1A1\*28 and \*6 ：6/7+GG or 6/6+GA) or 50mg/m2 （UGT1A1\*28 and \*6 ：7/7+GG or 6/6+AA or 6/7+GA）."