Summary of Lyell Immunopharma Conference Call Company Overview - **Company**: Lyell Immunopharma (NasdaqGS:LYEL) - **Focus**: Development of next-generation autologous CAR T-cell therapies for cancer treatment, targeting both hematologic malignancies and solid tumors [4][5] Key Highlights from the Call Clinical Data Presentation - **Ronacabtagene Autoleucel (Rona-cel)**: New clinical and translational data presented at the 67th American Society of Hematology (ASH) annual meeting [2][6] - **Target Indication**: Rona-cel is a dual-targeting CD19/CD20 CAR T-cell candidate aimed at treating relapsed or refractory large B-cell lymphoma [5][6] - **Clinical Trial Results**: - **Third or Later Line Setting**: - Overall response rate: 93% - Complete response rate: 76% - Median progression-free survival: 18 months [11][12] - **Second Line Setting**: - Overall response rate: 83% - Complete response rate: 61% - 70% of patients with complete response remained in complete response for six months or longer [11][24] Safety Profile - Rona-cel demonstrated a safety profile suitable for outpatient administration: - No grade 3 or higher cytokine release syndrome (CRS) reported - Grade 3 or higher immune effector cell-associated neurotoxicity syndrome (ICANS) rate was less than 5% with dexamethasone prophylaxis [11][29] Competitive Landscape - Rona-cel's clinical data suggests it may disrupt the current CD19 CAR T-cell market, which is valued at nearly $3 billion and projected to grow to over $5 billion [13][14] - Comparison with existing therapies (Yescarta and Breyanzi): - Yescarta: 72% overall response rate, 51% complete response rate, median progression-free survival of 6-7 months - Rona-cel: 93% overall response rate, 76% complete response rate, median progression-free survival of 18 months [12][14] Pipeline Expansion - **LYL273**: A new CAR T-cell candidate targeting guanylyl cyclase C (GCC) for metastatic colorectal cancer, currently in phase 1 clinical development: - Overall response rate: 67% - Disease control rate: 83% at the highest dose evaluated [39][40] - GCC is expressed in over 95% of colorectal cancers, representing a significant market opportunity projected to reach $12 billion by 2032 [43] Manufacturing and Scalability - Lyell operates its own manufacturing facility capable of producing over 1,200 CAR T-cell doses per year, ensuring scalability for clinical and commercial needs [9][40] Future Milestones - Ongoing pivotal trials for Rona-cel (Pinnacle and Pinnacle Head-to-Head) expected to provide further insights into its efficacy and safety compared to existing therapies [30][48] Additional Insights - The importance of CD62L enrichment in Rona-cel manufacturing was emphasized, leading to improved T-cell characteristics and sustained functional capacity post-infusion [31][36] - The call highlighted the need for next-generation CAR T-cell therapies to address limitations of existing treatments, particularly in high-risk patient populations [16][17] This summary encapsulates the critical points discussed during the conference call, focusing on Lyell Immunopharma's advancements in CAR T-cell therapy and its competitive positioning in the oncology market.

Core Insights - Lyell Immunopharma, Inc. reported financial results and business highlights for Q3 2025, focusing on its advanced CAR T-cell therapies for cancer treatment [1] Clinical Programs - The lead clinical program, rondecabtagene autoleucel (ronde-cel), is in pivotal trials for relapsed and/or refractory large B-cell lymphoma (LBCL) [2] - Ronde-cel has received Regenerative Medicine Advanced Therapy (RMAT) designation from the FDA for both second-line and third-line settings [2][8] - Lyell acquired global rights to LYL273, a CAR T-cell product candidate for refractory metastatic colorectal cancer (mCRC), which showed a 67% overall response rate in a Phase 1 trial [3][5] Financial Performance - The company reported a net loss of $38.8 million for Q3 2025, an improvement from a net loss of $44.6 million in Q3 2024 [12] - Research and development expenses decreased to $28.2 million in Q3 2025 from $39.5 million in Q3 2024, primarily due to reduced personnel costs [13] - Cash, cash equivalents, and marketable securities were approximately $320 million as of September 30, 2025, expected to support operations into 2027 [16] Upcoming Developments - Two pivotal trials, PiNACLE and PiNACLE – H2H, are set to advance, with patient enrollment for PiNACLE – H2H expected to begin by early 2026 [4][10] - New clinical data for ronde-cel will be presented at the upcoming ASH meeting in December 2025 [5][10] Pipeline and Manufacturing - Lyell's pipeline includes next-generation CAR T-cell therapies targeting significant unmet needs in cancer treatment [5] - The LyFE Manufacturing Center™ has the capacity to produce over 1,200 CAR T-cell doses, supporting both clinical trials and potential commercial launches [17]

Lyell Strengthens Next-Generation CAR T-Cell Pipeline with Novel GCC-Targeted Product Candidate for Metastatic Colorectal Cancer Lyell Immunopharma November 10, 2025 Forward Looking Statements Certain matters discussed in this presentation are "forward-looking statements" of Lyell Immunopharma, Inc. (hereinafter referred to as the "Company," "we," "us," or "our") within the meaning of the Private Securities Litigation Reform Act of 1995 (the "PSLRA"). All such written or oral statements made in this present ...

Core Insights - Lyell Immunopharma has acquired global rights to LYL273, a novel CAR T-cell therapy targeting guanylyl cyclase-C (GCC) for metastatic colorectal cancer (mCRC) and other GCC-expressing cancers, enhancing its solid tumor pipeline [1][9] - In a Phase 1 clinical trial, LYL273 demonstrated a 67% overall response rate and an 83% disease control rate in patients with refractory mCRC, indicating promising efficacy and a manageable safety profile [1][4][5] - The acquisition includes an upfront payment of $40 million and potential milestone payments totaling up to $675 million, along with royalties on future net sales [9] Company Developments - The Phase 1 clinical trial data showed that at the highest dose level, 67% of patients achieved an overall response, with one patient experiencing a pathological complete response [4][5] - The treatment-related adverse events were more common at the higher dose level, with cytokine release syndrome occurring in 83% of patients [5][6] - Lyell expects its cash resources to be sufficient to fund operations into 2027, supported by ongoing clinical trials and prudent expense management [10][11] Industry Context - Colorectal cancer is the second leading cause of cancer deaths globally, with a rising incidence among individuals under 55 years old, highlighting the urgent need for innovative therapies like LYL273 [2][7] - The Fast Track designation granted by the U.S. FDA for LYL273 underscores its potential as a significant advancement in treating mCRC, an area with substantial unmet medical needs [7]