The OLYMPUS Study - Optimized DeLivery of Mitomycin for Primary UTUC Study

Trial TC-UT-03 is a prospective, open label, single-arm trial, designed to assess the efficacy, safety, and tolerability of treatment with UGN-101 instilled in the upper urinary system of patients with non-invasive low-grade (LG), Upper Tract Urothelial Carcinoma (UTUC). Upon signing of informed consent, the patients will undergo a screening visit for eligibility evaluation. Eligible patients will be treated with UGN-101 once weekly for a total of 6 times; in a retrograde fashion. Patients who will demonstrate complete response (CR) will be treated with UGN-101 once monthly as a maintenance therapy for a total of 11 instillations or up to the first recurrence whichever comes first. Five (5) weeks (± 1 w) following the last instillation, the Primary Disease Evaluation (PDE) Visit, during which safety and efficacy will be assessed, will take place. During this visit, the ablative effect of the UGN-101 will be assessed visually, by upper tract washed urine cytology, and if there are remaining tumors, by biopsy or brush biopsy if technically feasible. Patient demonstrating CR at PDE will undergo monthly maintenance instillations of UGN-101 up to 11 months post PDE. Safety follow-up for these patients will be done until one month post last instillation or at the end of the follow-up period in FU visit 12, which is the earlier. For patients who did not demonstrate Complete Response, to the extent that it is possible, all remaining tumors lesions will be biopsied. The patients shall undergo any additional surgical or other treatment the Principal Investigator (PI) decides deem necessary to remove remaining tumor. An independent Data Monitoring Committee (DMC) was assigned to this trial. Accumulating safety, tolerability and efficacy data will be monitored periodically by the DMC according to a pre-specified process and frequency detailed in the DMC charter.