P-0127 - Clinical Experience with Uridine Triacetate for 5-Fluorouracil Overexposure: an Update

Abstract

Background: 5-fluorouracil (5-FU) is broadly used to treat solid tumors. It is typically administered by IV infusion, at or near its maximum tolerated dose, over several days. The use of infusion pumps increases the possibility of life-threatening or lethal toxicity due to errors in pump programming, infusion reservoir errors and dosage miscalculations. Partial or total dihydropyrimidine dehydrogenase (DPD) deficiency, which predisposes patients (up to 3% of the population) to impaired 5-FU elimination, can also result in serious or lethal toxicity, Uridine triacetate is an orally bioavailable direct biochemical antagonist of 5-FU toxicity that has been used successfully to treat patients in emergency overdose situations as well as patients with known or suspected overexposure to 5-FU due to DPD deficiency or other causes.