Phase 3 Study of UGN-104 Treatment for Adults With Low-grade Upper Tract Urothelial Cancer

What this Trial Is About

Researchers are studying UGN-104, a new formulation of UGN-101 also known as JELMYTO, to evaluate its effectiveness and safety in treating patients with low-grade upper tract urothelial cancer LG-UTUC. This phase 3, single-arm study focuses on patients with this specific type of cancer affecting the upper urinary tract, aiming to assess how well the treatment works and its safety profile. Participants will receive UGN-104 once a week for six weeks, with each dose administered directly into the upper urinary tract via a ureteral catheter or nephrostomy tube. The dose consists of 4 mg mitomycin per 1 mL sterile hydrogel. After the initial treatment period, patients who have no detectable disease at the primary disease evaluation visit about three months after the first dose may enter a follow-up phase where they could receive monthly maintenance doses for up to 11 months, depending on the investigators decision. During the study, participants will have evaluations every three months to check for disease response or recurrence. These assessments include urine cytology, visual inspection via ureteroscopy, and biopsies if needed. Researchers will monitor the complete response rate at three months as the primary outcome and track the duration of response, durable complete response rate, and any treatment-related side effects for up to 15 months. The total participation time varies depending on response and disease status.

A Phase 3 Single-arm Study of UGN-104 for the Treatment of Low-grade Upper Tract Urothelial Cancer