Summary of Arcellx (ACLX) Investor Relations Event - June 13, 2025 Company Overview - **Company**: Arcellx (ACLX) - **Event**: Investor Relations event held in Milan - **Focus**: Development of a novel cell therapy, Anitosel, targeting multiple myeloma Key Industry Insights - **Market Size**: - The second line plus market for multiple myeloma is estimated at **$12 billion** - The frontline market is projected to reach **$20 billion** - The fourth line plus population is approximately **$3.5 billion** [7][8][9] - **Market Research**: - Conducted with over **300 hematologists and oncologists** to assess market share and therapy adoption [11] - Anitosel is expected to capture a **58% market share** in 2024, increasing to **83%** in 2025 [12][13] Product Development and Clinical Trials - **Anitosel**: - A novel synthetic binder developed to address limitations of biologic-based binders, focusing on safety, scale, and manufacturability [5][6] - Strong clinical data in relapsed and refractory myeloma populations [6] - **IMMAGINE-one Study**: - Phase 2 study with **129 patients** enrolled, showing a **97% overall response rate** and **68% complete response rate** [31][33] - Median progression-free survival (PFS) of **30.2 months** and no delayed neurotoxicities reported [32][39] Launch Strategy - **Launch Timeline**: Anticipated launch of Anitosel in the U.S. in **mid to late 2026** [5] - **Market Access**: - Plans to access **80% of covered lives** within **30 days** of launch and **90% within 90 days** [21][22] - **Manufacturing Capacity**: - Expected to cover the majority of the fourth line plus population at launch, with a global potential of over **24,000 doses** [17][19] Operational Excellence - **Turnaround Time**: Expected turnaround time for Anitosel is less than **17 days**, with a high in-spec rate of **96%** [18][19] - **Partnership with Kite**: - Collaboration with Kite to leverage their expertise in cell therapy, enhancing operational efficiency and reducing costs [24][21] Financial Outlook - **Profitability**: Expected gross margins of **≥70%** at launch, with profitability anticipated at less than **$1 billion** in Anitosel sales [23][24] - **Capital Management**: As of Q1, the company has **$565 million** remaining on its balance sheet, reflecting operational efficiency [23] Safety and Efficacy - **Safety Profile**: - Anitosel demonstrated a predictable and manageable safety profile with no delayed neurotoxicities observed [39][40] - **85%** of patients experienced grade one or less cytokine release syndrome (CRS) [36] Conclusion - **Market Positioning**: Anitosel is positioned to be a leading CAR T therapy in the myeloma space, with a strong focus on patient safety, operational excellence, and market access strategies [28][29]