EFFICACY OF INTRAVITREAL INJECTION OF CONBERCEPT IN POLYPOIDAL CHOROIDAL VASCULOPATHY: Subgroup Analysis of the Aurora Study

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Abstract

Purpose:

To evaluate the efficacy of different doses of conbercept in patients with polypoidal choroidal vasculopathy in the AURORA study.

Methods:

Retrospective subgroup analyses of 12-month data from the AURORA study. Fifty-three patients (32 in 0.5-mg group and 21 in 2.0-mg group) diagnosed with polypoidal choroidal vasculopathy in AURORA study were retrospectively evaluated. Efficacy outcomes were compared between the two dosage groups.

Results:

At Month 12, mean changes in best-corrected visual acuity from baseline were 14.4 ± 14.1 letter scores for the 0.5-mg group and 14.2 ± 21.0 letter scores for the 2.0-mg group; mean central retinal thickness decreased by 104.5 ± 127.3 μm in the 0.5-mg group and 140.7 ± 127.9 μm in the 2.0-mg group; mean total macular volume decreased by 0.9 ± 2.3 mm3 and 1.0 ± 1.2 mm3 in the 0.5-mg and 2.0-mg groups, respectively. The mean subretinal fluid thickness decreased by 111.9 ± 122.5 μm and 76.3 ± 112.6 μm in the 0.5-mg and 2.0-mg groups, respectively. The mean pigment epithelial detachment height decreased by 79.3 ± 217.8 μm and 61.3 ± 161.5 μm in the 0.5-mg and 2.0-mg groups, respectively. The mean area of polyps decreased by 0.46 ± 0.76 mm2 and 0.55 ± 1.34 mm2 in the 0.5-mg and 2.0-mg groups, respectively. The mean total lesion area decreased by 2.51 ± 5.94 mm2 (P = 0.088) and 4.62 ± 5.51 mm2 in the 0.5-mg group and 2.0-mg groups, respectively. Complete regression of polyps was observed in 56.5% of patients in the 0.5-mg group and 52.9% of those in the 2.0-mg group, whereas partial regression was observed in 26.1% and 35.3% of patients in the 0.5-mg and 2.0-mg groups, respectively.

Conclusion:

Intravitreal injection of conbercept appears to significantly improve visual acuity and anatomical outcomes in patients with polypoidal choroidal vasculopathy.

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