 At month 3, the patient will be evaluated to assure that the disease is not progressing. Cytology, cystoscopy and biopsies will be performed to obtain adequate staging if residual tumor persists. If the patient is disease-free, maintenance therapy will be initiated. Patients with non-muscle invasive tumors at month 3 will, at the discretion of the investigator, receive either a second 6-week induction course or a 3-week maintenance course. Patients who show progression to muscle invasive disease will be referred to other treatments. 