Description/
Intervention: | The goal of this clinical research study is to find out if giving higher than
standard doses of radiotherapy with the drug 5-fluorouracil (5-FU), with or
without the drug CPT-11, will shrink rectal tumors before they are removed in
patients with distal rectal cancer. Researchers will compare the two
treatments to learn which is more effective. The safety of the treatment will
also be studied. |