Core Insights - The company is optimistic about the progress of the new Biogen, particularly in the context of the Alzheimer's drug launch, LEQEMBI [1] Group 1: Product Development - The recent approval for subcutaneous maintenance of LEQEMBI is seen as a significant advancement for patient treatment options [1] - The company has initiated a rolling submission for subcutaneous initiation, which is expected to enhance patient accessibility to the treatment [1] - The potential for patients to use an autoinjector at home represents a shift towards more convenient treatment options, while still allowing the choice of infusion center visits [1]

Biogen FY Conference Summary Company Overview - **Company**: Biogen (NasdaqGS:BIIB) - **Date of Conference**: September 24, 2025 Key Points Alzheimer's Disease and LEQEMBI - Biogen is experiencing positive momentum with the launch of LEQEMBI, particularly following the approval for subcutaneous maintenance therapy, which offers patients the option to self-administer at home [2][10] - The company is also pursuing a rolling submission for subcutaneous initiation therapy, expected to provide patients with more treatment options [2][10] - The approval of blood-based biomarkers by the FDA is seen as a significant advancement, increasing testing and potentially improving patient outcomes [3] Revenue Growth and R&D Focus - Year-on-year revenue growth from new products is offsetting declines from multiple sclerosis (MS) products, indicating a strategic shift towards growth products [4] - Biogen is focusing on high-value, high-probability success programs in its R&D pipeline, with several late-stage programs expected to yield registrational data soon [4][5] Pipeline Developments - Biogen is advancing several programs into Phase 3 trials, including treatments for lupus and rare nephrology conditions [5][6] - The company is also exploring new modalities and collaborations, such as with Stoke Therapeutics for Dravet syndrome [6][7] TAU ASO and CELIA Study - The TAU ASO (BIIB080) is in Phase 2 trials, with hopes to demonstrate significant reductions in TAU levels and clinical benefits [11][12] - The CELIA study aims to evaluate the impact of reducing all TAU isoforms on biomarkers and clinical outcomes [12] GLP-1 and Alzheimer's - Biogen acknowledges the potential of GLP-1 therapies in addressing neuroinflammatory pathways in Alzheimer's, despite mixed results from other trials [15] AHEAD Trials - The AHEAD 3 and AHEAD 4, 5 trials are designed to address pre-symptomatic stages of Alzheimer's, focusing on preventing further amyloid accumulation and cognitive decline [17][18] SMA and SPINRAZA - Biogen continues to focus on spinal muscular atrophy (SMA) with SPINRAZA, which remains a critical therapy despite competition from gene therapies [22][23] - The company is pursuing a high-dose version of SPINRAZA and a new antisense oligonucleotide, Salinursin, with promising early data [24][25] Lupus Opportunities - Lupus is identified as a significant market opportunity, with only two biologics currently available and a high unmet need [27][28] - Biogen is advancing Dapirolizumab pegol and litifilimab through multiple Phase 3 trials, targeting different lupus manifestations [29][30] Felsardimab and Rare Kidney Indications - Felsardimab is being explored for several rare kidney conditions, with ongoing Phase 3 trials and a focus on addressing unmet needs in these areas [39][40] - The company is optimistic about the potential of Felsardimab in conditions like AMR and IgAN, despite a crowded competitive landscape [41][42] IRAK4 Program - The IRAK4 program is in early development stages, with plans for a Phase 2 program to explore its potential in various inflammatory conditions [48] Overall R&D Strategy - Biogen's R&D strategy emphasizes a diversified pipeline with multiple high-value programs, aiming for significant market impact across various therapeutic areas [50] - The company is committed to innovation and disciplined cost management while expanding its portfolio through both internal and external collaborations [50] Conclusion - Biogen is positioned for growth with a robust pipeline across neurology, immunology, and rare diseases, focusing on high unmet needs and innovative therapies [50]

Financial Performance - Total revenue increased by 7% year-over-year to $265 billion[53] - Launch products generated $252 million in revenue, a 26% increase quarter-over-quarter and a 91% increase year-over-year[53] - Non-GAAP diluted EPS increased by 4% year-over-year to $547[53] - The company generated $134 million of free cash flow, which includes a $745 million impact from Q2 2025 tax payments[53] - The company expects full-year 2025 Non-GAAP diluted EPS between $1550 and $1600, up from the previous guidance of $1450 to $1550[53] - The company expects full-year 2025 total revenue to be approximately flat at constant currency versus FY 2024, an increase from a mid-single-digit decline previously[53] Product Performance - SKYCLARYS worldwide sales reached $130 million in Q2, up 30% year-over-year and 5% quarter-over-quarter[47] - SKYCLARYS U S sales were $78 million, up 3% year-over-year and 13% quarter-over-quarter[47] - ZURZUVAE U S sales were $46 million in Q2, up 213% year-over-year and 68% quarter-over-quarter[48] - LEQEMBI worldwide sales were $160 million in Q2, excluding $35 million in stocking in China; U S sales increased 20% quarter-over-quarter to $63 million[49] Pipeline and Development - Phase 3 studies were initiated for felzartamab in IgAN and PMN, and for SKYCLARYS in pediatric FA[18] - Positive Phase 1b results for salanersen support moving to registrational status for SMA, with a Phase 3 study expected to start by early 2026[18,32] - New analyses of dapirolizumab pegol Phase 3 data in SLE show improvement in fatigue and reduction in disease activity[18]

Biogen's Strategic Direction - Biogen is broadening its portfolio across Neuro, Immunology & Rare Disease, aiming for long-term sustainable growth[4,17] - Approximately 50% of Biogen's total company revenue is projected to come from outside of MS, including Biosimilars[17] Felzartamab's Potential in Nephrology - Felzartamab targets CD38-expressing cells, offering a differentiated approach for antibody-mediated diseases[27,29] - Phase 3 programs for Felzartamab are underway, targeting Antibody Mediated Rejection (AMR), IgA Nephropathy (IgAN), and Primary Membranous Nephropathy (PMN)[106] Antibody Mediated Rejection (AMR) - Late AMR affects approximately 11,000 patients in the U S, with >75% transplant loss and a median graft survival of ~2 years after diagnosis[36,37,40] - In a Phase 2 study, Felzartamab treatment resulted in >80% biopsy late AMR resolution at week 24, compared to 20% in the placebo group[53] - A Phase 3 study for Felzartamab in late AMR is underway, with data expected in 2027[56] IgA Nephropathy (IgAN) - IgAN affects approximately 130,000 patients in the U S, with up to 40% of patients reaching end-stage kidney disease within 20 years of diagnosis[61] - Phase 2 data showed that with 5 months of Felzartamab treatment, patients had sustained clinical benefit out to 2 years, with ~50% UPCR reduction at 24 months in the 9-dose group[69,71] - A Phase 3 study for Felzartamab in IgAN is designed to demonstrate improvement in kidney function, with data expected in 2029[74] Primary Membranous Nephropathy (PMN) - PMN affects approximately 36,000 patients in the U S, with up to 40% progressing to end-stage kidney disease within 15 years[80,81,103] - Phase 2 data showed robust and sustained reductions in anti-PLA2R and improvements in both newly diagnosed/relapsed (NDR) and refractory PMN patients[103] - A Phase 3 study for Felzartamab in PMN is designed to demonstrate complete remission of proteinuria, with data expected in 2029[100]