• Per Pfeiffer.
• Department of Oncology, Odense University Hospital, DK-5000, Odense C, Denmark. Per.Pfeiffer@ouh.fyns-amt.dk
• Acta Oncol. 2005 Jan 1; 44 (3): 224-9.

AbstractA phase I trial of preoperative high dose pelvic radiotherapy and oral UFT/l-leucovorin in patients with locally advanced and unresectable rectal cancer patients to evaluate toxicity and efficacy was performed. Eighteen patients (14 with primary unresectable tumours and four with locally recurrent tumours) were treated. All patients were evaluable for acute toxicity and efficacy. Patients received increasing doses of UFT (150 to 300 mg/m2/day UFT and a fixed dose of 22.5 mg/day l-leucovorin) with each fraction, five days a week for 30 days, concomitantly with pelvic radiotherapy (60 Gy in 30 fractions using concomitant boost technique). All patients received the planned dose of radiotherapy. No hematological toxicity was observed. Only one patient developed grade 3 toxicity (diarrhea). Fourteen patients (78%) had surgery (11 R0 and 3 R1) after median 40 days. Two patients (11%) had a complete pathological response. Ten patients are alive after median follow-up of 49 months. Toxicity, resection rate and survival are very encouraging and the study continues as a phase II trial.

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