title: Clinical Trials in Branch Retinal Vein Occlusion.
abstract: Branch retinal vein occlusion (BRVO) is the second most common retinal vascular disorder. The management of macular edema has changed considerably over time. The laser is considered the gold standard treatment for over two decades. However, visual recovery with laser is usually slow and incomplete. The advent of intravitreal agents, specifically anti-vascular endothelial growth factors (VEGF) have heralded a new era which promises rapid recovery of vision and quality of vision. Randomized clinical trials have reported optimal results with anti-VEGF agents (ranibizumab, bevacizumab, and aflibercept) compared to laser therapy or steroids. However, nearly 50% of the patients require repeat intravitreal anti-VEGF therapy up to 4 years after initiating therapy to sustain the visual gains. The adverse events (systemic and ocular) of these agents are minimal. Monotherapy with anti-VEGF agents have been found to provide better results than any combination with laser. This review article summarizes evidence from randomized controlled trials evaluating treatment options for the treatment of macular edema secondary to BRVO with a special focus on anti-VEGF therapy.
authors.affiliation: Vitreo-retina Consultant, Vasan Eye Care, Hyderabad, Telangana, India.
authors.forename: Tandava Krishnan
authors.initials: TK
authors.lastname: Panakanti
authors.affiliation: Smt. Kanuri Santhamma Retina Vitreous Centre, L.V. Prasad Eye Institute, Hyderabad, Telangana, India.
authors.forename: Jay
authors.initials: J
authors.lastname: Chhablani
mesh_terms: D020533:Angiogenesis Inhibitors / Q000627:therapeutic use*; D000068258:Bevacizumab / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D006801:Humans; D058449:Intravitreal Injections; D008269:Macular Edema / Q000188:drug therapy* / Q000503:physiopathology; D000069579:Ranibizumab / Q000627:therapeutic use; D040262:Receptors, Vascular Endothelial Growth Factor / Q000627:therapeutic use; D011993:Recombinant Fusion Proteins / Q000627:therapeutic use; D012170:Retinal Vein Occlusion / Q000188:drug therapy* / Q000503:physiopathology; D042461:Vascular Endothelial Growth Factor A / Q000037:antagonists & inhibitors; D014792:Visual Acuity / Q000187:drug effects / Q000502:physiology
chemical_list: D020533:Angiogenesis Inhibitors; D011993:Recombinant Fusion Proteins; C467484:VEGFA protein, human; D042461:Vascular Endothelial Growth Factor A; C533178:aflibercept; D000068258:Bevacizumab; D040262:Receptors, Vascular Endothelial Growth Factor; D000069579:Ranibizumab
keywords: Anti-Vascular Endothelial Growth Factors; Branch Retinal Vein Occlusion; Clinical Trials; Macular Edema