Patient description: The patient is a 34-year-old African American man with the known history of Sickle cell disease comes to the clinic with severe bone pain. The patient had severe pain in his lower back that radiated to both thighs scored 9 out of 10. The patient has had positive history of sickle cell crises since childhood. He also had the same symptoms in past two weeks treated with oxycodone which was not beneficial to his pain. His PCP sent him to the emergency department to receive intra venous pain modulators. The patient is afebrile within the normal blood pressure. No splenomegaly was detected in the physical exam. He has no positive history of drug allergy. He won't smoke or uses any illicit drugs. The lab study is as bellow: Hgb: 8 g/dl WBC: 10000 /mm3 Plt: 300000 /ml MCV: 106 fL Hemoglobine electrophoresis: 91% HbS 6%HbF 3%HbA2 AST: 22 U/L ALT: 43 U/L Alk P: 53 U/L Ferritin: 1200 ng/ml

Clinical trial eligibility criteria: eligible ages (years): 18.0-999.0,  Bladder Cancer Previously untreated or relapsed locally advanced or metastatic transitional cell carcinoma of the bladder. (Patients with pathology showing ANY component of non-transitional cell histology are not eligible) Relapsed patients may have received prior chemotherapy ≥ one year prior to study registration as part of a neoadjuvant or adjuvant regimen and must not have had intervening therapy from the end of that treatment until study entry Measurable disease as per Prior radiation therapy, immunotherapy, cytokine, biologic or vaccine therapy must be greater than 28 days prior to being registered for protocol therapy  No known central nervous system metastasis. (imaging of brain only required if clinically indicated) No prior organ allograft No history of other disease, metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug or that might affect the interpretation of the results of the study or render the subject at high risk from treatment complications No evidence of bleeding diathesis or coagulopathy No history of serious, non-healing wound, ulcer or bone fracture No history of abdominal fistula, gastrointestinal perforation, or intra-abdominal abscess within 6 months prior to being registered for protocol therapy No prior history of malignancy in the past 5 years with the exception of basal cell and squamous cell carcinoma of the skin. Other cancers with low potential for metastasis, such as in situ cancers (e.g., Grade 1, TA TCC (low grade superficial bladder cancer), colonic polyp with focus of adenocarcinoma) can also be enrolled after approval from the study chair No major surgical procedure, open biopsy, or significant traumatic injury less than 28 days prior to being registered for protocol therapy Patients are not eligible if the need for any major surgical procedure is anticipated during the course of the study Any minor surgical procedures, fine needle aspirations or core biopsies must be greater than 7 days prior to being registered for protocol therapy except procedures to secure a vascular access device which must be greater than 7 days prior to the start of protocol therapy