Sriwijaya Journal of Ophthalmology
Vol. 8 No. 2 (2025): Sriwijaya Journal of Ophthalmology

Sustained Anti-VEGF Delivery via Hydrogel Implant Achieves Non-Inferior Visual and Anatomical Outcomes in Neovascular AMD: A 24-Month Randomized Controlled Trial

Habiburrahman Said (Department of Health Sciences, Phlox Institute, Palembang, Indonesia)
Oliva Azalia Putri (Department of Surgery, CMHC Research Center, Palembang, Indonesia)
Linda Purnama (Department of Ophthalmology, Phlox Institute, Palembang, Indonesia)



Article Info

Publish Date
19 Jun 2026

Abstract

Introduction: Neovascular age-related macular degeneration (nAMD) requires frequent anti-VEGF intravitreal injections, creating substantial treatment burden. This study compared the 24-month efficacy and safety of a sustained-release anti-VEGF hydrogel implant versus monthly ranibizumab in treatment-naive nAMD eyes. Methods: This prospective randomized controlled trial enrolled 126 eyes (96 patients; 30 bilateral) with treatment-naive nAMD at a private hospital in Palembang, Indonesia (January 2022–December 2024). Eyes were randomized 1:1 to a biodegradable anti-VEGF hydrogel implant (n=64) or monthly ranibizumab 0.5 mg (n=62). The primary outcome was non-inferiority of the mean best-corrected visual acuity (BCVA) change (LogMAR) at 24 months (margin: 0.10 LogMAR). Analyses used linear mixed-effects models with generalized estimating equations to account for inter-eye correlation. Results: Mean BCVA improved by −0.24±0.18 LogMAR (≈12 letters) in the hydrogel group and −0.22±0.20 LogMAR (≈11 letters) in the ranibizumab group (difference: −0.02; 95% CI: −0.09 to 0.05; p=0.578; non-inferiority confirmed). The hydrogel group required 77.8% fewer injections (4.8±1.2 vs 21.6±3.4; p<0.001). Safety profiles were comparable. Conclusion: The sustained-release anti-VEGF hydrogel implant achieved non-inferior visual and anatomical outcomes versus monthly ranibizumab while reducing injection burden by 77.8% over 24 months. Multicenter validation is warranted.

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Journal Info

Abbrev

sjo

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Health Professions Medicine & Pharmacology

Description

Sriwijaya Journal of Opthalmology (SJO) is a peer-reviewed, scientific publication that welcomes the submission of original, previously unpublished manuscripts directed to ophthalmologists and visual science specialists describing clinical investigations, clinical observations, and clinically ...