A Study on the Timing of FOLFOX for Patients With Operable, Node Positive Rectal Cancer

"* Oxaliplatin\* 85 mg/m2 IV in 500 mL of D5W over 120 minutes~* Folinic Acid (Leucovorin)\* 400 mg/m2 IV in 250 ml D5W over 120 minutes~* 5-Fluorouracil (5-FU) 400 mg/m2 IV bolus, after Folinic Acid~* 5-Fluorouracil\*\* 2400 mg/m2 IV over 46 h in D5W to a total volume of 92 mL by continuous infusion at 2 mL/hour.~* Repeat every 14 days for 6 cycles in the arm A and to be completed with 6 cycles after surgery and 12 cycles in arm B.~If necessary the schedule may be modified +/- 3 days."

High dose rate endorectal brachytherapy, consisting in a total dose of 26 Gy in 4 daily fractions of 6.5 Gy.