UroGen Pharma Ltd. (NASDAQ:URGN), a biotech company dedicated to developing and commercializing innovative solutions that treat urothelial and specialty cancers, today announced the submission of a New Drug Application (NDA) to the U.S. Food and Drug Administration (FDA) for its investigational drug UGN-103 (mitomycin) for intravesical solution. UGN-103 is a next-generation mitomycin formulation being developed for the treatment of adults with recurrent low-grade intermediate-risk non-muscle invasive bladder cancer (LG-IR-NMIBC). It is built on the clinical and commercial foundation of ZUSDURI (mitomycin) for intravesical solution.

The NDA for UGN-103 is supported by the clinical data from the ongoing Phase 3 UTOPIA trial, a single-arm, multicenter study evaluating the efficacy and safety of UGN-103 in adult patients with recurrent LG-IR-NMIBC. UGN-103 demonstrated a 77.8% three-month complete response (CR) rate (95% CI: 68.3%, 85.5%) and a 94.5% six-month duration of response (DOR) by Kaplan-Meier estimate (95% CI: 86.1%, 97.9%). Both the three-month CR rate and the DOR observed at six months with UGN-103 in the UTOPIA trial are consistent with those observed in the pivotal ENVISION trial of ZUSDURI. Because these findings are derived from separate clinical studies, no formal cross-trial comparison was performed.