Celcuity(US:CELC)2025-10-20 13:02Summary of Conference Call for Celcuity's Victoria-1 Phase 3 Clinical Trial Results Company and Industry - Company: Celcuity - Industry: Oncology, specifically focusing on advanced breast cancer treatments Key Points and Arguments Clinical Trial Overview - The Victoria-1 trial is a global Phase 3 study targeting patients with hormone receptor (HR) positive, HER2 negative advanced breast cancer, including both PIK3CA mutant and wild type patients [9][10] - The trial involved 392 patients randomized into three arms: triplet regimen (gedatolisib, palbociclib, and fulvestrant), doublet regimen (gedatolisib and fulvestrant), and control arm (fulvestrant) [10][11] Efficacy of Gedatolisib - The gedatolisib triplet regimen showed a statistically significant improvement in median progression-free survival (PFS) of 7.3 months over fulvestrant, with a median PFS of 9.3 months and a hazard ratio of 0.24, indicating a 76% reduction in the risk of disease progression or death [13][15] - The doublet regimen also demonstrated a significant improvement of 5.4 months in median PFS over fulvestrant, with a hazard ratio of 0.33, representing a 67% reduction in risk [15] - Subgroup analyses indicated that the clinical benefits of the triplet regimen were consistent across predefined groups, including patients in the U.S. and Canada, where median PFS was 19.3 months for the triplet [16][18] Safety and Tolerability - The gedatolisib regimens were generally well tolerated, with low discontinuation rates due to treatment-related adverse events: 2.3% for the triplet and 3.1% for the doublet [21] - Adverse events were primarily low grade, with no new safety signals observed. Notably, hyperglycemia rates were lower than expected, with 9.2% in the triplet and 11.5% in the doublet [22] Market Opportunity - There is an estimated 37,000 patients who progress to second-line treatment after CDK4/6 inhibitors, with approximately 60% being PIK3CA wild type, representing a significant market opportunity [23] - The potential addressable market for gedatolisib is projected to be around $5 billion, with a smoother reimbursement process for IV-administered drugs compared to oral therapies [24] Future Milestones - Celcuity plans to submit a New Drug Application (NDA) for the Victoria-1 PIK3CA wild type cohort in the current quarter, with additional data presentations expected at major medical conferences later this year [25] - Top-line data for the PIK3CA mutation cohort is anticipated by late Q1 or Q2 2026 [25] Competitive Landscape - The results from the gedatolisib regimens are positioned to potentially establish a new standard of care for patients with advanced breast cancer, especially in comparison to existing therapies like Roche's everolimus [34][35] - The differentiation of gedatolisib is emphasized, particularly for the broader patient population, as it may address the needs of approximately 85% of patients who do not have specific mutations [35] Intellectual Property and Development Strategy - Celcuity holds multiple patents related to gedatolisib, extending exclusivity until at least 2042, which includes patents for the drug formulation and dosing schedule [50][51] - The company is exploring additional clinical development opportunities, including combinations with oral SERDs and indications in earlier lines of therapy [28] Additional Important Content - The PAM pathway is highlighted as a critical target in oncology, with evidence suggesting that comprehensive blockade of this pathway is essential for effective treatment [3][4] - The trial's design and statistical analysis were structured to maximize the potential for demonstrating statistical significance in overall survival with mature follow-up data [55] This summary encapsulates the key findings and strategic insights from Celcuity's conference call regarding the Victoria-1 Phase 3 clinical trial results, emphasizing the potential impact of gedatolisib in the treatment landscape for advanced breast cancer.