Annexon
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Annexon (ANNX) investor relations material

Annexon TD Cowen 46th Annual Health Care Conference summary

Complete event summary combining all related documents: earnings call transcript, report, and slide presentation.
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TD Cowen 46th Annual Health Care Conference summary3 Mar, 2026

Company overview and strategic direction

  • Focused on neuroinflammatory diseases via classical complement pathway inhibition, with three late-stage programs targeting over 10 million patients and a $10B+ commercial opportunity.

  • Key strengths include innovation and first-mover advantage in targeted indications, with challenges around market education and shifting clinical dogma.

  • Plans to create shareholder value through late-stage clinical readouts, regulatory filings, and commercial launches over the next 1–2 years.

  • Cash position exceeds $200M, providing runway into late 2027 and covering all major upcoming catalysts.

Geographic atrophy (GA) program

  • Lead asset in GA is in a 659-patient Phase III trial, with primary endpoint of best corrected visual acuity, reading out at month 15.

  • Phase II data showed significant, dose-dependent vision preservation and photoreceptor neuron protection, with a strong safety profile and minimal conversion to wet AMD.

  • Differentiated mechanism via C1q inhibition targets inflammation at the photoreceptor level, unlike C3/C5 inhibitors that act downstream.

  • Phase III design excludes advanced disease patients to maximize efficacy, based on Phase II learnings.

  • Commercial strategy emphasizes education, strong relationships with key practices, and patient outreach to drive adoption.

Guillain-Barré syndrome (GBS) program

  • Tanruprubart demonstrated landmark Phase III results, with rapid and sustained improvement in muscle strength and disability scores versus placebo and IVIG.

  • Real-world evidence (RWE) study confirmed generalizability of results to US and European populations, with additional open-label data being collected for FDA submission.

  • Market opportunity includes 7,000 US and 15,000 EU patients annually, with nearly all diagnosed patients treated, and a highly concentrated provider landscape.

  • Commercial buildout is focused on education, formulary access, and reimbursement, with pricing estimates in the $100,000–$150,000 range per course.

  • Health economic analyses are underway to support value-based pricing and demonstrate cost savings from reduced ICU and hospital stays.

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Status update18 Mar, 2026
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Status update18 Mar, 2026

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Frequently asked questions

Annexon, Inc. is a clinical-stage biopharmaceutical company engaged in discovering and developing therapeutics for autoimmune, neurodegenerative, and ophthalmic disorders. The company focuses on targeting C1q, an initiating molecule of the classical complement pathway, which plays a critical role in various disease processes, including antibody-mediated autoimmune diseases and complement-mediated neurodegeneration. Annexon's pipeline includes several product candidates such as ANX005, which is in clinical trials for Guillain-Barré syndrome, and other trials for warm autoimmune hemolytic anemia, Huntington's disease, and amyotrophic lateral sclerosis. Annexon is headquartered in Brisbane, California, and its shares are listed on the Nasdaq.

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