alexa Ranibizumab versus Verteporfin Photodynamic Therapy for Neovascular Age-Related Macular Degeneration: Two-Year Results of the ANCHOR Study
Ophthalmology

Ophthalmology

Journal of Clinical & Experimental Ophthalmology

Author(s): Brown DM, Michels M, Kaiser PK, Heier JS, Sy JP

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Objective The 2-year, phase III trial designated Anti-vascular endothelial growth factor (VEGF) Antibody for the Treatment of Predominantly Classic Choroidal Neovascularization (CNV) in Age-related Macular Degeneration (ANCHOR) compared ranibizumab with verteporfin photodynamic therapy (PDT) in treating predominantly classic CNV. Design Multicenter, international, randomized, double-masked, active-treatment-controlled clinical trial. Participants Patients with predominantly classic, subfoveal CNV not previously treated with PDT or antiangiogenic drugs. Intervention Patients were randomized 1:1:1 to verteporfin PDT plus monthly sham intraocular injection or to sham verteporfin PDT plus monthly intravitreal ranibizumab (0.3 mg or 0.5 mg) injection. The need for PDT (active or sham) retreatment was evaluated every 3 months using fluorescein angiography (FA). Main Outcome Measures The primary, intent-to-treat efficacy analysis was at 12 months, with continued measurements to month 24. Key measures included the percentage losing <15 letters from baseline visual acuity (VA) score (month 12 primary efficacy outcome measure), percentage gaining ≥15 letters from baseline, and mean change over time in VA score and FA-assessed lesion characteristics. Adverse events were monitored. Results Of 423 patients (143 PDT, 140 each in the 2 ranibizumab groups), the majority (≥77% in each group) completed the 2-year study. Consistent with results at month 12, at month 24 the VA benefit from ranibizumab was statistically significant (P<0.0001 vs. PDT) and clinically meaningful: 89.9% to 90.0% of ranibizumab-treated patients had lost <15 letters from baseline (vs. 65.7% of PDT patients); 34% to 41.0% had gained ≥15 letters (vs. 6.3% of PDT group); and, on average, VA was improved from baseline by 8.1 to 10.7 letters (vs. a mean decline of 9.8 letters in PDT group). Changes in lesion anatomic characteristics on FA also favored ranibizumab (all comparisons P<0.0001 vs. PDT). Overall, there was no imbalance among groups in rates of serious ocular and nonocular adverse events. In the pooled ranibizumab groups, 3 of 277 (1.1%) patients developed presumed endophthalmitis in the study eye (rate per injection = 3/5921 [0.05%]). Conclusions In this 2-year study, ranibizumab provided greater clinical benefit than verteporfin PDT in patients with age-related macular degeneration with new-onset, predominantly classic CNV. Rates of serious adverse events were low.

This article was published in Ophthalmology and referenced in Journal of Clinical & Experimental Ophthalmology

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