Arrowhead Pharmaceuticals Conference Summary Company Overview - **Company**: Arrowhead Pharmaceuticals (ARWR) - **Industry**: RNA interference (RNAi) therapeutics - **Current Status**: Transitioning from R&D to commercial operations with 20 drug candidates in clinical studies or at market by the end of 2025 [3][70] Key Drug Candidate: Posaziran - **Indication**: Designed to reduce expression of APOC3 for treating familial chylomicronemia syndrome (FCS) and severe hypertriglyceridemia (SHTG) - **PDUFA Date**: November 18, 2025, for FCS population [3][4] - **Clinical Data**: - Phase III study showed an **80% reduction in triglycerides** and an **83% improvement in risk of acute pancreatitis** [5][6] - **75% of patients** achieved triglyceride levels below 880 mg/dL, and **50% below 500 mg/dL** [11][12] - **Dosing**: Administered quarterly via subcutaneous injection [5] Market Potential and Competitive Landscape - **Patient Population**: - Genetic FCS patients estimated at **1,000** in the U.S. - Phenotypic FCS patients could number **5,000 to 10,000** [13][15] - **Comparison with Competitors**: - Posaziran shows superior efficacy compared to a competitor's drug, which demonstrated a **40% reduction in triglycerides** [23][24] - Posaziran's quarterly dosing is more favorable compared to competitor's monthly dosing [23] Pricing and Payer Considerations - **Pricing Strategy**: - Positioned as a pancreatitis drug rather than a cardiovascular drug, potentially allowing for higher pricing [28][29] - Discussions ongoing with payers regarding the value proposition of reducing pancreatitis risk [32][33] - **Market Size**: - Broad market estimated at **3 to 4 million** patients with triglycerides above 500 mg/dL, with a narrower focus on those above 880 mg/dL [48] Future Developments - **Expansion Plans**: - Plans to file a supplemental NDA (sNDA) for broader SHTG population by the end of 2026 [43] - Development of a dimer approach targeting both PCSK9 and APOC3 for broader cardiovascular applications [50][51] - **Other Drug Candidates**: - Zodasiran, targeting ANGPTL3, is in Phase III for HoFH (homozygous familial hypercholesterolemia) [55] - MAPT for Alzheimer's disease expected to enter clinical trials soon [58][71] Partnership and Collaborations - **Novartis Partnership**: - Collaboration focused on CNS targets, including alpha-synuclein for neurodegenerative diseases [57][62] - Upfront payment of **$200 million** with potential milestones exceeding **$2 billion** [63] Conclusion - Arrowhead Pharmaceuticals is poised for significant growth with its lead candidate, posaziran, targeting severe hypertriglyceridemia and pancreatitis. The company is strategically positioning itself in the market while preparing for a transition to commercial operations, with multiple drug candidates in the pipeline and ongoing partnerships to enhance its therapeutic offerings [70][76]

Financial Data and Key Metrics Changes - The net loss for Q3 2025 was $175.2 million, or a loss of $1.26 per share, compared to a net loss of $170.8 million, or a loss of $1.38 per share in Q3 2024 [35] - Revenue for Q3 2025 was $27.8 million, primarily from the collaboration agreement with Sarepta, with $20 million from initial consideration and $7 million from reimbursement of collaboration costs [35][36] - Total operating expenses for Q3 2025 were $193.3 million, an increase from $176.1 million in the prior year, driven by higher R&D costs and SG&A expenses [37][38] - Cash and investments totaled $900.4 million as of June 30, 2025 [38] Business Line Data and Key Metrics Changes - The company achieved full enrollment in Phase 3 studies for clozaran, targeting severe hypertriglyceridemia, with approximately 2,200 patients enrolled across 24 countries [9][24] - The Phase 3 study for zodasiran began with the first patients enrolled in July 2025, targeting homozygous familial hypocholesterolemia [10][27] - The company is on track to meet its 2025 initiative of having 20 individual drug candidates in clinical studies or at market, with nine partnered and 11 wholly owned candidates [16] Market Data and Key Metrics Changes - The collaboration with Sarepta is expected to continue, providing capital to fund internal programs, despite Sarepta's recent setbacks [6] - The company is preparing for the US launch of clozaran, with a PDUFA date set for November 18, 2025, and has engaged with payers representing over 85% of US covered lives [29][30] Company Strategy and Development Direction - The company aims to create value through novel medicines, generate capital for development, and build a growth engine [7] - The focus is on expanding the cardiometabolic franchise and addressing unmet medical needs in various patient populations [14][31] - The company is building a commercial organization to support the launch of its products, particularly clozaran and zodasiran [21][40] Management's Comments on Operating Environment and Future Outlook - Management acknowledged the challenging biotech market but emphasized their commitment to serving patients and creating shareholder value [7] - The company is optimistic about the upcoming regulatory submissions and the potential for multiple product launches between late 2025 and 2028 [12][16] - Management expressed confidence in the collaboration with Sarepta and the potential for significant future milestones [6][36] Other Important Information - The company has made significant progress in sourcing new capital, including a $130 million upfront payment from Sanofi for rights to develop clozaran in Greater China [18][36] - The company expects to achieve a $100 million milestone payment from Sarepta and anticipates a second milestone of $200 million by the end of the year [36][38] Q&A Session Summary Question: How does the company view competitors' programs in triglyceride reduction? - Management stated that they focus on their own studies and have had positive data in their Phase 2 and Phase 3 studies, expecting to demonstrate best-in-class triglyceride reduction [44][46] Question: What are the baseline demographics for the Phase III studies? - Management confirmed that their baseline demographics are similar to those published by competitors, but emphasized the importance of focusing on adjudicated cases of pancreatitis rather than abdominal pain [52][56] Question: How does clozaran address unmet clinical needs? - Management highlighted that clozaran offers deep triglyceride reduction and is the only agent in a registrational Phase 3 study that has shown a statistically significant reduction in acute pancreatitis risk [61][62] Question: What is the expected pricing strategy for clozaran? - Management indicated that they expect clozaran to be priced higher than treatments for severe hypertriglyceridemia, but specific pricing details are still under consideration [65] Question: What is the expected timeline for the auto-injector for clozaran? - Management stated that the initial presentation will be a prefilled syringe, with development underway for an auto-injector expected to be available at launch or soon thereafter [88][89]