Mark P. Schoenberg
Analyst · Guggenheim
Thank you, Liz. As a practicing urologist, I've spent years managing patients with recurrent low-grade intermediate risk non-muscle invasive bladder cancer. We see the approval of ZUSDURI as a meaningful advancement in how we care for this population. And for the first time, we can offer patients and their health care providers an effective pharmacologic treatment that targets the underlying disease and offers a convenient office-based outpatient alternative to repeated surgeries. We view this as a significant shift in the standard of care. Historically, transurethral resection of bladder tumor, or TURBT, has been the only real option for patients with low-grade intermediate risk disease. TURBT is an invasive surgical procedure. It requires general anesthesia and access to an operating room, and it carries risks, especially in an older population. Patients are typically diagnosed with bladder cancer in their mid-70s, and many of these patients have comorbidities that make surgery under general anesthesia less than ideal. We also know this is a highly recurrent disease. Approximately 68% of patients experience at least 2 recurrences and 23% will have 5 or more. That means multiple surgeries under general anesthesia and an ongoing burden that takes a toll on both physical health and quality of life, not to mention the burden placed on partners, family and other caregivers. In addition, repeated TURBT procedures may be associated with an increased risk of mortality. ZUSDURI offers a new nonsurgical treatment approach. ZUSDURI is administered as an intravesical installation via urinary catheter once a week for 6 weeks in a physician's office. No operating room, no general anesthesia and minimal recovery time. In many cases, a trained nurse can perform the procedure right in the urologist's office. For patients, this means a much less disruptive experience. For medical practices, it means increased OR availability for more complex procedures and an efficient in-office option that can streamline treatment delivery. The clinical data supporting ZUSDURI are both robust and continuing to mature. In our ongoing pivotal Phase III ENVISION trial, 79% of patients achieved a complete response at 3 months following the completion of treatment. Equally important, however, is the durability of that response. In bladder cancer, long-term disease control is what truly improves outcomes and quality of life for patients. In our most recent update from ENVISION, which we shared earlier this week, we announced a 24-month duration of response of 72.2% by Kaplan-Meier estimate for patients who achieved a complete response of 3 months after the first installation of ZUSDURI. The sustained response observed offers real value to both patients and practices, allowing management of recurrence with greater confidence and extending the time between recurrences. Importantly, the median duration of response has not been reached and the event rate has not accelerated and remained steady over time. According to the published literature, the median duration of response for TURBT in this population is approximately 6 to 9 months with a substantial proportion of patients recurring within the first year. These results are further supported by the 5-year follow-up data from Phase II OPTIMA II study in both newly diagnosed and recurrent disease, which was published in the Journal of Clinical Genitourinary Cancer this past June. In that trial, of the 41 patients who achieved a complete response, the median duration of response was approximately 2 years by Kaplan-Meier estimate. Among the 17 patients who entered the 5-year extension study, the median duration of response was 3.5 years. These data contribute to the growing and consistent body of evidence demonstrating that ZUSDURI is not only effective in achieving a complete response, but also offers durable disease control over time. We are very optimistic about the emerging long-term durability profile of ZUSDURI. I'll now briefly update you on the clinical pipeline. UGN-301 is our investigational anti-CTLA4 antibody delivered via RTGel. It is currently being evaluated in the Phase I trial both as monotherapy and in combination with UGN-201, our TLR7 agonist, and with gemcitabine. We shared the latest data at the AUA meeting in April. And the safety profile continues to be favorable across both the monotherapy and combination arms. We observed clinical responses in both monotherapy and combination arms with follow-up on the combination arms ongoing to evaluate the durability of response. We expect to share updated data later this year, and we'll use those results to guide a potential decision to move into Phase II development. As Liz mentioned earlier, we're also advancing our next-generation formulations of ZUSDURI and JELMYTO. The Phase III UTOPIA trial is evaluating UGN-103, the successor to ZUSDURI, in patients with recurrent low-grade intermediate risk disease and has completed enrollment. This study is modeled closely on ENVISION. Efficacy will be measured by the complete response rate at 3 months with follow-up focused on assessing durability. We expect top line complete response data by the end of this year, and we plan to share those results with the FDA to help inform the regulatory path forward. We are also taking a similar approach with UGN-104, our next-generation formulation of JELMYTO. We recently initiated a single-arm Phase III trial and patient screening is underway. UGN-501, our recently acquired next-generation oncolytic virus candidate, is progressing through IND-enabling studies, with a Phase I trial anticipated to begin next year. I will now turn the call over to David for the commercial update.