Trial of Combination ABI-007, Carboplatin, and Gemcitabine for First Line Treatment of Advanced Urothelial Cancer

Inclusion Criteria: * Male and female patients at least 18 years of age. * Histologic or cytologic diagnosis of urothelial carcinoma (transitional cell carcinoma either pure or mixed histology) that is metastatic or locally recurrent or locally advanced and not eligible for higher priority trials. * must have measurable disease. * Patients must have recovered from any radiation therapy and must not have had more than 25% of the bone marrow irradiated. * Eastern Cooperative Oncology Group (ECOG) performance status of 0-2 (Appendix 1.) * Life expectancy of at least 12 weeks. * Adequate organ and marrow function as defined below obtained within 14 days from registration: * absolute neutrophil count \>1,500/µL * platelets \>100,000/µL * total bilirubin =1.5 mg/dL * creatinine \<2.0 mg/dL * AST and ALT \<2.5 X upper limits of normal * Timing guideline for pre-study labs and measurements: * All pre-study labs required for determination of eligibility are to be completed within 14 days prior to registration. * X-rays and/or scans to assess all disease sites are to be completed within 1 month prior to registration (or the next business day if falls on a weekend or holiday). * All patients must be informed of the investigational nature of this study and must sign an informed consent in accordance with institutional and federal guidelines. Exclusion Criteria: * Previous systemic chemotherapy for the current stage of disease. * Prior treatment with ABI-007 or other taxane (prior treatment with taxane in neoadjuvant or adjuvant setting more than one year prior to registration is allowed). * Pre-existing neuropathy that is \> grade 2 (i.e. interfering with patient function). * History of or known spinal cord compression, or carcinomatous meningitis, or evidence of symptomatic brain or leptomeningeal disease on screening CT or MRI scan. * Known HIV positive patients may not participate. This is to avoid additional complications that immune suppression and HIV infection may cause due to the intense nature of the chemotherapy in this trial. * Concurrent treatment on another therapeutic clinical trial. Supportive care trials or non-treatment trials, e.g. QOL, are allowed. * Pregnancy or breastfeeding. Female subjects must be surgically sterile or be postmenopausal, or must agree to use effective contraception during the period of therapy. All female subjects with reproductive potential must have a negative pregnancy test (serum) prior to enrollment. Male subjects must be surgically sterile or must agree to use effective contraception during the period of therapy. The definition of effective contraception will be based on the judgment of the principal investigator or a designated associate. * Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or study drug administration, or may interfere with the interpretation of study results, and in the judgment of the investigator would make the subject inappropriate for entry into this study.