Safety of posterior juxtascleral depot administration of the angiostatic cortisene anecortave acetate for treatment of subfoveal choroidal neovascularization in patients with age-related macular degeneration

Abstract

Background: Anecortave acetate is a synthetic derivative of cortisol, but very specific and irreversible chemical modifications to the cortisol structure have resulted in the creation of a potent inhibitor of blood vessel growth with no evidence non-clinically or clinically of glucocorticoid receptor-mediated bioactivity. The clinical safety of Anecortave Acetate administered as a posterior juxtascleral depot every 6 months for up to 4 years is reviewed in this manuscript.

Methods: Clinical safety and efficacy of the novel angiostatic agent Anecortave Acetate for Depot Suspension was evaluated in patients with subfoveal exudative age-related macular degeneration (AMD) in a masked, randomized, dose-duration clinical trial completed in June 2003. This safety and efficacy study enrolled and treated 128 patients at 18 clinical sites in the US and EU. This was the first clinical trial of Anecortave Acetate for Depot Suspension administered as a posterior juxtascleral depot. Assessments of clinical safety were made with general physical examinations including electrocardiograms and hematology/serum chemistry/urinalysis, detailed ophthalmic evaluations with fluorescein/indocyanine green angiography and assessments of best-corrected logMAR visual acuity. All safety reports have been reviewed periodically by an Independent Safety Committee responsible for overseeing these activities.

Results: No clinically relevant safety issues related to either Anecortave Acetate for Depot Suspension or the administration procedure have been identified by an Independent Safety Committee. The most frequent safety issues reported were cataractous changes, decreased visual acuity, ptosis, ocular pain, abnormal vision and subconjunctival hemorrhage, but the majority of these were assessed as unrelated to treatment.

Conclusions: Anecortave Acetate for Depot Suspension (3, 15 and 30 mg) is clinically safe following administration and re-administration at 6-month intervals as a posterior juxtascleral depot using a specially designed curved cannula.