UroGen Announces Five-Year Long-Term Extension Study of the OPTIMA II Trial Demonstrates Long-Term Durability of Response to ZUSDURI™ in Patients with Low-Grade Intermediate-Risk Non-Muscle Invasive Bladder Cancer

Core Insights - UroGen Pharma Ltd. announced the publication of a five-year long-term extension study of the Phase 2b OPTIMA II trial, demonstrating durable long-term complete responses in patients with low-grade intermediate-risk non-muscle invasive bladder cancer (LG-IR-NMIBC) treated with ZUSDURI (mitomycin) [1][2] Company Overview - UroGen Pharma is a biotech company focused on developing innovative solutions for urothelial and specialty cancers, utilizing proprietary RTGel technology for sustained drug release [10] - ZUSDURI is specifically indicated for the treatment of adults with recurrent LG-IR-NMIBC, providing a non-surgical treatment option [5][11] Clinical Study Findings - The OPTIMA II trial included both newly diagnosed and recurrent adult patients with LG-IR-NMIBC, with 41 patients achieving complete response (CR) at three months post-treatment; 25 remained in CR at 12 months [2][4] - Among the 17 patients who entered the long-term follow-up study, the median duration of response (DOR) was 42.1 months, indicating ZUSDURI's potential for meaningful, lasting event-free periods [2][7] - The median Kaplan-Meier estimate of DOR for all 41 patients was 24.2 months, with a median follow-up of 35.8 months [2] Patient Demographics - The study cohort consisted of 17 patients, of which 16 (94%) were recurrent cases, highlighting the drug's relevance for patients facing repeated surgeries [4] Treatment Efficacy - ZUSDURI's long-term data emphasizes its ability to deliver sustained responses in an outpatient setting, which is particularly valuable for recurrent patients [2][3] - The study results reflect a commitment to providing innovative treatments that empower patients and physicians with more options [3] Safety Profile - Safety data were not collected during the long-term follow-up trial; however, the most commonly reported treatment-emergent adverse events in the parent OPTIMA II study included dysuria (41%), pollakiuria (21%), and hematuria (16%) [3][4]