Sorafenib in Treating Patients With Regional or Metastatic Cancer of the Urothelium

Inclusion Criteria:

Histologically confirmed transitional cell carcinoma or mixed histologies containing a component of transitional cell carcinoma of the urothelium (renal pelvis, ureter, bladder, urethra) with manifestations of progressing regional or metastatic cancer; or (2) Nontransitional cell histologies include patients with adenocarcinoma or squamous cell carcinomas representing greater than 90% of specimen; patients with small cell carcinoma, soft tissue sarcomas, or carcinosarcomas are excluded
Measurable disease, as defined in the RECIST criteria; all sites of disease must be evaluated within 4 weeks prior to registration
Patients must have progressed on one and only one prior systemic chemotherapy for metastatic disease; prior chemotherapy administered in the adjuvant or neoadjuvant setting is permitted (i.e. does not count as 1 prior regimen) provided that it was completed greater than 12 months prior to the start of the first chemotherapy regimen administered in the metastatic setting
Patients must not have had prior systemic biologic response modifier therapy; patients must not have had chemotherapy, hormonal or biologic therapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or have recovered from adverse events due to agents administered more than 4 weeks earlier
Prior radiotherapy is allowed; patients must be >= 2 weeks post-radiotherapy at time of registration; a previously irradiated lesion can only be used as a marker lesion if there is unequivocal evidence of progression demonstrated on serial imaging studies; patients must have recovered from all toxicities associated with prior radiotherapy
Patients must be >= 4 weeks post-major surgery at time of registration; patients must have recovered from all toxicities associated with prior surgery
ECOG performance status of 0 or 1
No history of severe cardiovascular disease (AHA Class III or IV), uncontrolled CHF, uncontrolled hypertension, or ventricular dysrhythmias
Patients with previously resected and irradiated CNS metastases with evidence of stable disease are eligible
Patients with a history of prior malignancy are eligible provided they were treated with curative intent and have been disease free for >= 5 years; curatively treated basal cell or squamous cell carcinoma of the skin or carcinoma-in-situ of the cervix must have been treated with curative intent; patients with clinically unsuspected organ confined prostate cancer found at the time of cystoprostatectomy are eligible
Creatinine < 1.5 mg/dL
Granulocytes >= 1500/mm^3
Platelets >= 100,000/mm^3
AST =< 2.5 x institutional upper limit of normal
Bilirubin < 1.5 mg/dl
No active unresolved infection requiring parenteral antibiotics < 7 days prior to study entry
Patients must not have a swallowing dysfunction which would prevent the ingesting of pills
Patients must not have any evidence of bleeding diathesis
Patients must not be on therapeutic anticoagulation; prophylactic anticoagulation (i.e. low dose warfarin) of venous or arterial access devices is allowed provided that the requirements for PT, INR or PTT are met
Patients must not be taking the cytochrome P450 enzyme-inducing antiepileptic drugs (phenytoin, carbamazepine, and phenobarbital), rifampin, or St. John's Wort
Women of childbearing potential must not be pregnant (as proven by a negative pregnancy test within 14 days prior to registration) or breast feeding because the effects of this treatment on the fetus and breast-fed infants is unknown
Women of childbearing potential and sexually active males must be strongly advised to use an accepted and effective method of contraception