Biogen Conference Call Summary Company Overview - **Company**: Biogen (NasdaqGS:BIIB) - **Date**: November 13, 2025 - **Event**: TD Cowen's 2025 I&I Summit Key Industry and Company Insights Immunology and Kidney Strategy - Biogen has reinvigorated its immunology and kidney efforts, leveraging its expertise in neuroimmunology from its historical focus on neuroscience [2][3] - The strategy aims to support a diverse product portfolio by targeting immunological pathways applicable to multiple disease indications [2][3] R&D Pipeline Structure - The ideal R&D pipeline in immunology is driven by scientific understanding, allowing for efficient early development trials and multi-indication strategies [4][5] - Biogen's approach includes starting with multiple indications simultaneously to build confidence for further expansion [5] Investor Perception - Investors currently undervalue Biogen's immunology and kidney pipeline, potentially missing the strategic rationale behind the development of drugs like felzartamab [6] - Felzartamab is positioned to address antibody-mediated rejection in kidney transplants, supported by robust clinical data [6][7] Lupus Pipeline Confidence - Biogen has two late-stage candidates for lupus: dapirolizumab pegol and litifilimab, with confidence stemming from data-driven insights and successful proof of concept studies [9][10] - The company emphasizes the importance of clinical trial execution and understanding disease management in lupus, which has historically been challenging [10][11] Ongoing Trials - The Topaz 1 and 2 trials for systemic lupus erythematosus (SLE) have completed enrollment, with data expected by the end of 2026 [14][15] - These trials are designed to test different dosing paradigms and measure various endpoints related to disease control [15][16] Key Risks and Considerations - Risks to trial success include the complexity of lupus management and the need for precise clinical trial execution [17][18] - Biogen aims to meet statistical significance and meaningful patient outcomes in its trials, focusing on reducing flares and steroid use [19][20] New Programs and Future Directions - Biogen recently introduced BIIB142, an IRAK4 degrader, which is an oral molecule with potential applications across various autoimmune diseases [32][33] - The company is exploring multi-indication strategies for this new asset and continues to build its early-stage pipeline through collaborations and acquisitions [36] Additional Insights - Biogen is committed to reducing steroid dependency in lupus patients, aligning with evolving treatment guidelines [20] - The company is optimistic about the potential of its lupus candidates to provide meaningful improvements in patient quality of life [10][11] This summary encapsulates the key points discussed during the conference call, highlighting Biogen's strategic focus on immunology and kidney disease, ongoing clinical trials, and future directions in research and development.

Core Insights - C4 Therapeutics' partner Biogen has received FDA acceptance for the IND application of BIIB142, a degrader of IRAK4 aimed at treating autoimmune diseases [1][2] - The collaboration between C4 Therapeutics and Biogen has been productive, leading to the development of multiple candidates targeting unmet medical needs [2][3] - C4 Therapeutics is set to receive a $2 million milestone payment upon the initiation of patient dosing in the BIIB142 clinical trial [2] Company Overview - C4 Therapeutics is a clinical-stage biopharmaceutical company focused on targeted protein degradation to develop innovative medicines [3] - The company utilizes its TORPEDO platform to design small-molecule medicines for challenging diseases, aiming to improve patient outcomes [3] - C4 Therapeutics' approach involves leveraging the body's natural protein recycling system to degrade disease-causing proteins, potentially overcoming drug resistance [3]