Annexon's ANX007: A Breakthrough in Vision Preservation for Dry AMD Patients
AInvestMonday, Oct 21, 2024 8:06 pm ET
2min read
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Annexon, Inc. recently presented promising Phase 2 data for its investigational therapy ANX007 at the American Academy of Ophthalmology (AAO) 2024 meeting. The drug demonstrated significant vision protection in patients with dry age-related macular degeneration (AMD) and less advanced geographic atrophy (GA). This article explores the potential of ANX007 as a novel treatment option for dry AMD patients.

Dry AMD is a progressive eye disease that affects millions of people worldwide, leading to vision loss and reduced quality of life. GA, an advanced form of dry AMD, is characterized by the loss of photoreceptor cells in the retina, resulting in blind spots and reduced visual acuity. Currently, there are limited treatment options available for GA, making Annexon's ANX007 a promising development in the field.

ANX007 is a first-in-class, non-pegylated antigen-binding fragment (Fab) designed to block C1q, the initiating molecule of the classical complement pathway. By inhibiting C1q, ANX007 aims to prevent the activation of the classical complement pathway, which leads to synapse loss, inflammation, and neuronal damage, ultimately resulting in vision loss.

The Phase 2 ARCHER trial was a randomized, double-masked, sham-controlled study evaluating the efficacy of ANX007 in protecting against vision loss in GA patients. Key findings from the trial demonstrated that ANX007 provided significant protection from vision loss, as measured by a loss of fewer than 15 ETDRS letters in best corrected visual acuity (BCVA). This effect was dose-dependent and increased over time, with the treatment benefit continuing during the 6-month on-treatment period.

ANX007 was also shown to protect key retinal structures, including photoreceptors and retinal pigment epithelial (RPE) cells near the fovea. Importantly, ANX007 was well-tolerated throughout the 12-month trial, with no increase in choroidal neovascularization (CNV) rates or reports of retinal vasculitis compared to the sham control.

Dr. Rahul N. Khurana, a presenter at the AAO 2024 meeting, highlighted the significance of these results, stating, "The ARCHER trial data show ANX007's ability to offer meaningful protection against vision loss in a patient population with limited treatment options."

ANX007's potential as a novel treatment option for GA patients is further supported by its Fast Track designation from the Food and Drug Administration (FDA) and Priority Medicine (PRIME) designation in the European Union. These designations reflect the potential of ANX007 to offer a major therapeutic advantage over existing treatments or benefit patients without treatment options.

In conclusion, Annexon's ANX007 has shown promising results in the Phase 2 ARCHER trial, demonstrating significant vision protection and structural protection in patients with dry AMD and less advanced GA. With its well-tolerated profile and potential to offer a major therapeutic advantage, ANX007 has the potential to become a breakthrough treatment for dry AMD patients. As the company continues to advance its registrational program, investors should keep a close eye on the progress of ANX007 and its potential impact on the dry AMD treatment landscape.
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