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

Eligible patients were randomized in a 1:1 ratio to UGN-102 ± TURBT or TURBT alone. Randomization was stratified by the presence of a previous LG-NMIBC episode within 1 year of the current diagnosis (yes or no). Starting on Day 1, patients randomized to the UGN-102 ± TURBT arm will receive 6 weekly intravesical instillations of UGN-102 and patients randomized to the TURBT alone arm underwent TURBT.

All patients returned to the clinic approximately 3 months after the start of treatment for a disease assessment visit. Response to treatment was determined based on visual observation (white light cystoscopy), histopathology of any remaining or new lesions, and voiding urine cytology. Patients confirmed to have a complete response (CR), defined as having no detectable disease (NDD) in the bladder, received no further treatment and entered the Follow-up Period of the study. Patients confirmed to have a non-complete response (NCR) due to residual LG disease in either treatment arm underwent TURBT of any remaining lesions and then entered the Follow-up Period of the study.

During the Follow-up Period, patients returned to the clinic every 3 months to determine if they remained disease free. Patients remained on study until completion of all follow-up visits or until disease recurrence, disease progression, or death was documented, whichever occurred first. Patients determined to have a protocol-defined recurrence or progression at any follow-up or unscheduled visit were considered to have completed the study and released to the care of their treating physician.

Study enrollment was stopped early by the sponsor to pursue an alternative development strategy for UGN-102 in the treatment of bladder cancer. Patients who had consented at the time the trial terminated were permitted to continue, but follow-up was terminated once the last patient had been followed for 15 months after the start of treatment.