On November 6, 2025 UroGen Pharma Ltd. (Nasdaq: URGN), a biotech company dedicated to developing and commercializing innovative solutions that treat urothelial and specialty cancers, reported robust preliminary results from its ongoing Phase 3 UTOPIA trial, demonstrating a 77.8% three-month complete response (CR) rate (95% CI, 68.3%, 85.5%) with UGN-103 (mitomycin) for intravesical solution in patients with recurrent low-grade intermediate-risk non-muscle invasive bladder cancer (LG-IR-NMIBC). This result is consistent with the 79.6% three-month CR rate (95% CI, 73.9%, 84.5%) observed following treatment with ZUSDURI in the pivotal ENVISION trial. In addition, the U.S. Food and Drug Administration (FDA) agreed that CR and durability results from the UTOPIA trial can support the submission of a New Drug Application (NDA) for UGN-103 for recurrent LG-IR-NMIBC.
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"The robust 77.8% three-month CR rate observed in the UTOPIA trial is highly encouraging and reinforces the potential of UGN-103 to deliver meaningful benefits to patients," said Liz Barrett, President and Chief Executive Officer of UroGen. "In addition, the FDA’s agreement that the UTOPIA trial can support the submission of an NDA for UGN-103 represents a significant regulatory milestone and a strong validation of our clinical strategy. Together, these achievements give us significant momentum and a clear path toward potential approval, positioning UGN-103 as a key growth driver and marking an important advancement in expanding our leadership in uro-oncology. We look forward to working closely with the FDA as we complete the UTOPIA trial and prepare for an NDA submission in 2026."
UGN-103 is designed to offer key improvements over ZUSDURI (mitomycin) for intravesical solution, the first and only FDA-approved treatment for adults with recurrent LG-IR-NMIBC. These include a shorter manufacturing process and a simplified reconstitution procedure, while maintaining UroGen’s established approach that enables prolonged drug exposure within the bladder. UroGen has two U.S. patents with claims relating to the combination of the Company’s RTGel technology combined with medac’s licensed proprietary lyophilized mitomycin formulation. These patents cover UGN-103 as well as the use of UGN-103 for the treatment of LG-IR-NMIBC and expire in December 2041.
About UTOPIA
The UTOPIA trial is a single-arm, multicenter study evaluating the efficacy and safety of UGN-103 in 99 patients across global sites. Enrolled patients received 75 mg of UGN-103 via intravesical instillation once weekly for six weeks. The primary endpoint is complete response rate at three months, with responders entering a follow-up phase of up to 12 months to assess durability of response. For more information on the UTOPIA study, please visit View Source
About UGN-103
In January 2024, UroGen entered into a licensing and supply agreement with medac to develop UGN-103 for LG-IR-NMIBC. UGN-103 is an innovative mitomycin formulation that aims to streamline manufacturing and reconstitution processes while providing intellectual property coverage until December 2041. It utilizes UroGen’s RTGel technology for prolonged mitomycin exposure.
About ZUSDURI
ZUSDURI (mitomycin) for intravesical solution is an innovative drug formulation of mitomycin approved for the treatment of adults with recurrent LG-IR-NMIBC. Utilizing UroGen’s proprietary RTGel technology (a sustained release, hydrogel-based formulation), ZUSDURI is delivered directly into the bladder by a trained healthcare professional using a urinary catheter in an outpatient setting, thereby enabling the treatment of tumors by non-surgical means.
About Non-Muscle Invasive Bladder Cancer (NMIBC)
LG-IR-NMIBC affects around 82,000 people in the U.S. every year and of those, an estimated 59,000 are recurrent. Bladder cancer primarily affects older populations with increased risk of comorbidities, with the median age of diagnosis being 73 years. Guideline recommendations for the management of NMIBC include transurethral resection of bladder tumor (TURBT) as the standard of care. Up to 70 percent of NMIBC patients experience at least one recurrence, and LG-IR-NMIBC patients are even more likely to recur and face repeated TURBT procedures. Learn more about non-muscle invasive bladder cancer at www.BladderCancerAnswers.com.
(Press release, UroGen Pharma, NOV 6, 2025, View Source [SID1234659592])