ACELYRIN (SLRN) Earnings Call Presentation

Pipeline and Milestones - Alumis expects topline data from Phase 3 ONWARD trials for envudeucitinib in moderate-to-severe plaque psoriasis in early 1Q 2026[11] - Alumis anticipates topline data from Phase 2b LUMUS trial in systemic lupus erythematosus in 3Q 2026[11] - Alumis plans to initiate a Phase 2 clinical trial for A-005 in multiple sclerosis in 1H 2026[11] - Alumis is evaluating the development program for lonigutamab in thyroid eye disease[12] - Alumis expects Phase 1 data for its next program in 2026[12] Financial Position - Alumis had $486.3 million in cash as of June 30, 2025, providing runway into 2027[11] Envudeucitinib (TYK2 Inhibitor) - Envudeucitinib demonstrated a 15-20% increase in clinical response (PASI) with maximal target inhibition[23] - In the STRIDE trial, Envudeucitinib 40 mg BID showed a 64.1% PASI-75 response at Week 12[39] - Approximately 92% of diagnosed psoriasis patients are not treated with a biologic therapy, representing a market opportunity for Envudeucitinib[35] - Alumis is receiving $40 million near-term for Japan, <5% of Worldwide Psoriasis Market (estimated at $600M in 2024)[69] A-005 (CNS-Penetrant TYK2 Inhibitor) - A-005 achieves a CSF:Plasma (free drug) ratio of approximately 1:1, indicating full CNS penetration[75]