Uracil and tegafur (in a molar ratio of 4:1 [UFT]) has proven activity agai
nst breast cancer and is deliver-ed in an easy-to-administer oral formulati
on Orzel, which combines UFT with the oral biomodulator, calcium folinate,
may provide evert greater antitumor efficacy against breast cancer. Here, w
e describe the preliminary results of this phase II trial investigating the
feasibility of 250 mg/m(2)/day of UFT phs 45 mg/day of oral calcium folina
te administered to highly pretreated patients with advanced breast cancer.
The results indicate a highly tolerable regimen and art overall response ra
te of 27.8% in a group of poor-prognosis patients. These findings warrant c
ontinued investigation.