A Phase 3 Single-Arm Study of UGN-102 for Treatment of Low-Grade Intermediate-Risk Non-Muscle Invasive Bladder Cancer

Eligible patients received 6 once-weekly intravesical instillations of UGN-102. All patients returned to the clinic approximately 3 months after the first instillation for determination of response to treatment. Assessment of response was based on visual observation (white light cystoscopy), histopathology of any remaining or new lesions by central pathology lab (if applicable), and interpretation of urine cytology by central pathology lab. Patients who had a complete response (CR) at the 3-month Visit, defined as having no detectable disease in the bladder, entered the Follow-up Period of the study. Patients who had a non-complete response (NCR) due to residual LG disease underwent investigator-designated standard of care (SOC) treatment of remaining lesions and then entered the Follow-up Period of the study. During the Follow-up Period, patients return to the clinic every 3 months for up to 24 months (ie, 27 months after the first instillation) for evaluation of response. Patients who remain disease free at the 27-month Visit will continue to be followed every 6 months for up to 36 months (ie, 63 months after the first instillation) or until disease recurrence, disease progression, death, or the study is closed by the sponsor, whichever occurs first. Patients who had a disease recurrence during the Follow-up Period or a disease progression at any time underwent investigator-designated SOC treatment and had a separate End of Study (EOS) Visit performed. The timing of the EOS Visit was approximately 3 months after SOC treatment of disease recurrence or progression. Study conduct is ongoing and data are summarized through a cutoff date of 04 Apr 2024. As of the data cutoff date, ongoing patients were followed through at least Study Month 15, with the earliest enrolled patients followed through Study Month 21.