Financial Data and Key Metrics Changes - In Q1 2025, Ultragenyx reported revenue of $139 million, representing a 28% increase compared to Q1 2024 [18] - The net loss for the quarter was $151 million, or $1.57 per share, with total operating expenses of $282 million [20] - Cash, cash equivalents, and marketable securities stood at $563 million as of March 31, 2025 [20] Business Line Data and Key Metrics Changes - Crysvita generated $103 million in revenue, with contributions of $41 million from North America, $55 million from Latin America and Turkey, and $7 million from Europe, marking a 25% growth over 2024 [18] - DeJolvi contributed $17 million, consistent with its expected growth trajectory, while EVKYSA generated $11 million as demand builds [19] - Mepsevii contributed $8 million as the company continues to treat patients in this ultra-rare indication [19] Market Data and Key Metrics Changes - In Latin America and Turkey, Crysvita revenue grew by 52% over 2024, driven by successful reimbursement negotiations [18] - The U.S. market for Crysvita is expected to continue growing as the company identifies new pediatric and adult patients [11] - The EMEA region saw over 260 patients treated with DERJOVY under named patient sales, with strong demand noted particularly in France [13] Company Strategy and Development Direction - The company is focused on expanding its commercial operations globally while preparing for new product launches in the U.S. and worldwide [5] - Ultragenyx is advancing multiple late-stage programs, including UX143 for osteogenesis imperfecta and GTX-102 for Angelman syndrome, with data expected in 2026 [7][26] - The company is on track to submit two Biologics License Applications (BLAs) in 2025, with one currently under review and another expected mid-year [8][9] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence that 2025 will be a transformational year, with expectations of significant revenue growth and multiple clinical data readouts [32] - The company is optimistic about the demand for its products, particularly in Latin America and the pediatric and adult XLH markets in the U.S. [21] - Management acknowledged the evolving tariff landscape but does not expect material exposure for any products, including Crysvita [23] Other Important Information - The company is actively monitoring regulatory interactions and has scheduled inspections of manufacturing facilities and clinical sites [9] - The company expects net cash used in operations to decrease in the remaining quarters of 2025, aiming for full-year GAAP profitability by 2027 [21] Q&A Session Summary Question: Insights on setrusumab and the second interim analysis - Management discussed the variability in fracture rates among patients and the statistical methods used to analyze data, emphasizing confidence in achieving significant results [35][39] Question: Likelihood of success if the study moves to a third interim read - Management expressed confidence in hitting the p-value threshold based on observed data trends and the size of the study [46][49] Question: Impact of recent CBER nomination on the rare disease space - Management noted concerns about the nomination but emphasized the importance of maintaining accelerated approval pathways for rare diseases [51][54] Question: Enrollment status for the Angelman program - Management confirmed that all global sites for the Angelman program are active and screening patients [66][68] Question: Clarification on the timing of interim data release - Management indicated that data cleaning and analysis for the interim results would take approximately eight weeks, with a commitment to timely communication of results [90][92]

Financial Data and Key Metrics Changes - In Q1 2025, the company reported revenue of $139 million, representing a 28% increase compared to Q1 2024 [15] - The net loss for the quarter was $151 million, or $1.57 per share, with total operating expenses of $282 million [18] - Cash, cash equivalents, and marketable securities stood at $563 million as of March 31, 2025 [18] - The company reaffirmed its 2025 revenue guidance of $640 million to $670 million, indicating a growth of 14% to 20% over 2024 [19] Business Line Data and Key Metrics Changes - Crysvita generated $103 million in revenue, with significant contributions from North America ($41 million), Latin America and Turkey ($55 million), and Europe ($7 million), marking a 25% growth over 2024 [16] - DeJolvi contributed $17 million, while EVKYSA and Mepsevii contributed $11 million and $8 million, respectively [17] - In Latin America and Turkey, Crysvita saw a remarkable 52% growth over 2024 [16] Market Data and Key Metrics Changes - The commercial team in Latin America reported approximately 775 patients on reimbursed therapy for Crysvita, with expectations for continued growth following successful reimbursement negotiations [8] - In the U.S., the adult patient population for Crysvita has exceeded initial expectations, contributing to revenue growth [9] - The EMEA region showed strong demand for DERJOVY, with over 260 patients treated under named patient sales [11] Company Strategy and Development Direction - The company is focused on expanding its commercial operations outside the U.S. and preparing for new product launches [3] - The development pipeline includes multiple late-stage programs, with significant progress in Phase III studies for various treatments [5] - The company is working on two separate Biologics License Applications (BLAs), with one under review and another expected to be submitted mid-2025 [6] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in 2025 being a transformational year, with expectations for substantial revenue growth and successful clinical data readouts [29] - The company is actively monitoring regulatory changes and does not anticipate material exposure from tariffs affecting its products [21] - Management highlighted the importance of continued demand for products in Latin America and the U.S. pediatric and adult markets [19] Other Important Information - The company is on track for a PDUFA action date of August 18 for the UX-111 BLA under review by the FDA [7] - The company expects net cash used in operations to decrease in the remaining quarters of 2025, aiming for full-year GAAP profitability by 2027 [19] Q&A Session Summary Question: Discussion on setrusumab and fracture reduction - Management explained the concept of variation in fracture rates among patients and its impact on study outcomes, emphasizing confidence in achieving significant results [34][36] Question: Likelihood of success in the third interim read for OI - Management expressed optimism about meeting the p-value threshold based on the study's design and patient data [44][46] Question: Impact of recent FDA appointments on the rare disease space - Management indicated that while there are concerns, they remain confident in their clinical data supporting their programs [50][52] Question: Growth drivers for Crysvita in Latin America - Management noted that patient experiences and physician engagement are key factors driving growth in the region [116]