Mark Schoenberg
Analyst · H.C. Wainwright. Please go ahead
Thank you, Liz. We are very encouraged by the progress we’ve made and equally excited about what’s to come. I can tell you first hand that the exciting in neurologic community about our recent advances is palpable. As a practicing neurologist, I'm particularly encouraged by the interest from my medical colleagues regarding the recent launch of Jelmyto and how they can incorporate this paradigm-shifting therapy into their practices. We had two virtual presentations at the AUA Annual Meeting in May. The first featured data from the Jelmyto pivotal OLYMPUS trial in patients with low-grade UTUC. The data in the presentation also published in Lancet Oncology demonstrated that 59% of low-grade UTUC patients treated with Jelmyto achieved a complete response. Based on interim data, durability at 12 months was estimated to be 84% by Kaplan-Meier analysis and median duration of response was not reached. Overall, the most frequently reported adverse events were ureteric stenosis, urinary tract infection, hematuria, flank pain, and nausea. We also shared interim data from the Phase 2b OPTIMA II trial of UGN-102 in patients with low-grade, intermediate-risk, non-muscle invasive bladder cancer. These data were also published as a supplement to the April 2020 issue of the Journal of Urology. We are pleased to share updated results as of June 19, 2020 which are consistent with our previous reports showing that 65% or 41 out of 63 patients treated with UGN-102 achieved a complete response three months after the start of therapy. In the subset of patients, the interim Kaplan-Meier analysis shows a 72.4% estimated duration of response to 12 months. This analysis includes only patients who are present for evaluation at each time point. Follow up of these patients will continue until all patients have reached the 12-month timepoint. The most common adverse events, greater than 10% were reported as mild to moderate and include dysuria, hematuria, urinary frequency, fatigue, urgency and urinary tract infection. This data continue to validate our hypothesis that increased dwell time significantly improves the effectiveness of intravesical therapy. But UTUC and non-muscle invasive bladder cancer are treated by repetitive surgical intervention, which carries associated risks in an elderly population. Much like Jelmyto, UGN-102 may have the potential to fundamentally change the way low-grade, intermediate risk non-muscle invasive bladder cancer is treated and help patients avoid recurrence of their cancer and repetitive surgeries. This time, in a much larger patient population. We have agreed to the design elements of our Phase 3 study with the FDA and are finalizing the protocol. The study will be a randomized, controlled trial in approximately 600 patients of UGN-102 with or without you TURBT versus TURBT alone in patients with low-grade, non-muscle invasive bladder cancer and intermediate risk of occurrence. Patients will be randomized to either UGN-102 plus or minus TURBT or TURBT alone. At the three-month timepoint, patients will be assessed for response. Patients who have demonstrated a complete response to either UGN-102 or TURBT will continue for long-term follow-up. Patients who demonstrate a recurrence in either arm will undergo a TURBT. Based on previous Phase 2 data generated in this population, we believe the majority of patients treated with UGN-102 will not require a TURBT at three months. The primary endpoint of the study is disease-free survival and the study is designed to conclude superiority and who are non-inferiority. We expect completion of the study within approximately three years, with the potential to stop early and prespecified interim analyses. We are excited by the robustness of the study design, which is important given the potential UGN-102 has to significantly disrupt the current treatment paradigm. We want to ensure patients have access as soon as possible. And the head-to-head comparison is expected to generate data demonstrating the value of treating patients with UGN-102 versus repetitive surgical intervention. Before I turn things over to Jeff, I want to provide a little more detail on UGN-302, a combination of UGN-201 which is our TLR 7 agonist, as a monotherapy and zalifrelimab, anti-CTLA4 antibody which we are developing in high-grade, non-muscle invasive bladder cancer. Patients with this disease are at higher risk for rapid progression with an increased risk of developing a life threatening illness. Since the disease primarily impacts people in their 60s and 70s, often with other comorbidities, non-surgical treatment options are of vital importance. The current standard of care for high-grade, non-muscle mass of bladder cancer is transurethral resection of bladder tumor or TURBT, in addition to BCG. Those who do not respond to BCG then receive alternative intravesical therapies, enroll in a clinical trial or undergo radical cystectomy, which is a complex surgery involving bladder removal and urinary tract reconstruction using a segment of the intestinal tract. This operation is associated with all of the typical risks of a major surgery and specific risks such as dehydration, electrolyte abnormalities, urinary tract infection, bowel obstruction and ureter blockage urinary tract infection, bowel obstruction, and ureter blockage. A cystectomy is associated with high rates of complication including gastrointestinal dysfunction, deep vein thrombosis, heart attacks and death. The hypothesis that the preclinical team has been working on is it combinatorial immunotherapy is feasible and meaningful when applied locally which is a very novel idea. Delivering the combination intravesically may sign step -- systemic side effects and adverse events associated with systemic immunotherapy. What we found is that a combination of UGN-201 with an anti-CTLA-4for antibody resulting smaller tumors and better survival in mice and some changes of immunological markers such as decreased T regulatory cells and increased CD8 to T-reg ratios in arm [ph] model. We think these data support advancing this program into human trials as this may represent a novel approach to managing high grade disease that has otherwise failed therapy with contemporary standards of care. As Liz mentioned, this program has generated considerable interest based on its potential to dramatically change how we treat this disease. I'd like to now turn the call over to Jeff.