Fluorouracil, Leucovorin, Gemcitabine, and Cisplatin in Treating Patients With Metastatic or Unresectable Adenocarcinoma of the Urothelium or Urachal Remnant

Inclusion criteria

• ✓. Histologic proof of cancer originating from the urinary tract with adenocarcinoma as the predominant (\>/= 50%) histology. Dr. Czerniak and/or Dr. Tamboli will be consulted in equivocal cases of mixed histology. The Study Chairman is the final arbiter in questions of mixed histology.
• ✓. Bi-dimensionally measurable disease. All patients must have measurable or evaluable disease. In general, liver and lung lesions should be at least 1 cm, and patients with node-only disease should have lesions of \>/= 1.5 cm in greatest dimension. Patients with disease confined to bone may be eligible if a measurable lytic defect, or soft-tissue component in present. Those without measurable disease may be eligible if a serum marker is elevated (\>/= 4 x ULN) (ie: CEA, CA-125, CA19-9, bhCG, etc).
• ✓. (# 2 cont'd) The Study Chairman is the final arbiter in questions related to measurability. Patients with a three-dimensional mass or pelvic sidewall fixation on bladder examination under anesthesia are considered to have measurable disease.
• ✓. Patients are eligible if they have evidence of metastatic disease, or if their tumor is surgically unresectable. In the absence of grossly metastatic disease, all patients should be seen and evaluated by a member of the Urology staff to assess their potential for resection.
• ✓. Patients must have adequate physiologic reserves as evidenced by: • Life expectancy of at least 9 months (based on co-morbidity) \& at least 9 weeks based on the natural history of their cancer. • Zubrod Performance Status (PS) of \</= 2; or 3 if of recent onset and due entirely to the cancer and not to comorbidity, and especially if the compromised performance status is due to uncontrolled pain which is expected to be rapidly reversible when therapy starts.