Efficacy of Intravitreal Aflibercept Monotherapy for Submacular Hemorrhage Secondary to Neovascular Age-Related Macular Degeneration: A Prospective Clinical Trial

The prognosis of exudative age-related macular degeneration (AMD) accompanied by submacular hemorrhage is generally poor. Although anti-vascular endothelial growth factor (VEGF) has been demonstrated excellent efficacy in the treatment of exudative AMD, eyes with submacular hemorrhage were excluded from the previous well-known clinical trials. The exclusion of these patients may probably be determined by some concerns suggesting possible poor prognosis in these patients. Firstly, it was well known that subretinal hemorrhage itself induces retinal damage and degeneration. Secondly, it was not certain whether the drug penetrates through hemorrhage and stabilize to the underlying lesion or not. As a result, the efficacy in submacular hemorrhage could not be demonstrated in these clinical trials.

The efficacy of anti-VEGF therapy in eyes with submacular hemorrhage has recently been spotlighted. Several reports demonstrated significant improvement in visual acuity after anti-VEGF monotherapy, including LucentisTM, AvastinTM, or both, in eyes with exudative AMD with submacular hemorrhage. Although histopathologic evidence using animal model has not been presented, results of these clinical studies suggest that anti-VEGF may penetrates the hemorrhage and stabilize the underlying lesion. Recently, a large prospective clinical trial that evaluated the efficacy of anti-VEGF therapy in this condition showed favorable outcome. Result of this study may be published in a near future

A recently developed anti-VEGF agent eyeliaTM is also a useful treatment option for exudative AMD. The result of VIEW study clearly demonstrated that this new agent has comparable efficacy to LucentisTM using less frequent injection schedule. However, one major limitation of VIEW study was that lack of data regarding eyes with submacular hemorrhage. Investigators carefully reviewed the study protocol of VIEW study and found that lesions composed of >50% blood were excluded. In addition, investigators could not aware any report in English literature that evaluated the efficacy of eyeliaTM in exudative AMD with submacular hemorrhage.

It took almost 8 years to demonstrate the efficacy of two previously available anti-VEGF agents (LucentisTM and AvastinTM) in eyes with submacular hemorrhage. Investigators believe that a prospective study evaluating the efficacy of eyeliaTM in exudative AMD with submacular hemorrhage may help to achieve a consensus that eyeliaTM is also a useful treatment for submacular hemorrhage within a relatively short time.

The purpose of the present study was to evaluate the efficacy of Eylea in submacular hemorrhage secondary to exudative AMD.