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Victor H. Gonzalez, Brian Berger, Roger Goldberg, Carmelina M. Gordon, Rahul N. Khurana, Raymund Angeles, Naveed Shams; Safety and Tolerability of Intravitreal Carotuximab (DE-122) in Patients With Persistent Exudative Age-Related Macular Degeneration: A Phase I Study. Trans. Vis. Sci. Tech. 2021;10(14):27. doi: https://doi.org/10.1167/tvst.10.14.27.
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Carotuximab (DE-122) is a novel endoglin antibody that exhibits potent anti-angiogenic activity. The aim of this study was to evaluate the safety and tolerability of a single intravitreal injection of four ascending doses of carotuximab in patients with persistent exudative age-related macular degeneration (AMD).
In an open-label, dose-escalating, sequential cohort study, patients with persistent exudative AMD were assigned to an intravitreal injection of carotuximab 0.5 mg, 1.0 mg, 2.0 mg, or 4.0 mg (n = 3 per group). Safety and change in central subfield thickness (CST), as measured by spectral domain–optical coherence tomography, were assessed from baseline until day 90. Rescue therapy with an anti-vascular endothelial growth factor medication was allowed on days 8, 30, and 60.
Seven patients (58%) experienced at least one adverse event (AE), including five patients (41.7%) who experienced one or more AEs in the study eye and two patients (16.7%) who experienced one or more non-ocular AEs. Posterior eye deposits were reported in one patient 2 days after receiving 1.0 mg, but they resolved spontaneously by day 43. A >50-µm reduction in CST on two consecutive visits was observed in four patients (33%), including one patient in each dose cohort.
In this study, carotuximab was generally well tolerated, with no serious AEs reported, when administered as a single intravitreal injection to patients with persistent exudative AMD.
Further characterization of the safety and efficacy of carotuximab will be needed to determine what role it may have in the treatment of exudative AMD.
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