Intraocular pressure in patients with neovascular age-related macular degeneration switched to aflibercept injection after previous anti-vascular endothelial growth factor treatments

Irene Rusu, Avnish Deobhakta, Dan Yoon, Michele Lee, Jason Slakter, James Klancnik, Desmond Thompson, K. Freund

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

PURPOSE:: To assess for change in intraocular pressure (IOP) in neovascular age-related macular degeneration patients switched to aflibercept after receiving previous treatments of intravitreal bevacizumab or ranibizumab. METHODS:: This is a retrospective chart review of the first 53 patients (53 eyes) treated with at least 2 injections of 2 mg in 0.05 mL of aflibercept by March 6, 2013, after at least 2 previous injections of 0.5 mg in 0.05 mL of ranibizumab with or without previous injections of 1.25 mg in 0.05 mL of bevacizumab. The analysis was restricted to the first such sequence within each patient. The last previous anti-vascular endothelial growth factor injection before the switch to aflibercept was ranibizumab in all cases included in the study. Each person served as his or her own control. The pre-aflibercept IOP in the before state (treatment with bevacizumab or ranibizumab) was the preinjection IOP measure before dilation at the visit of the first aflibercept injection. Statistical analysis was performed using Microsoft Excel. RESULTS:: There were 41 patients who were first treated with ranibizumab followed by aflibercept and 12 patients treated with ranibizumab and bevacizumab followed by aflibercept. For each of these sequences, IOP in the treated eye during treatment with aflibercept (the after state) was computed in 3 different ways: the first IOP, the last IOP, and the mean IOP for the period when treated with aflibercept. The pooled data showed a mean pre-aflibercept (the before state) IOP of 14.87 that decreased to a mean first IOP of 14.57, mean last IOP of 13.79, and a mean IOP of 14.14 during aflibercept treatment. The inference is based on the pooled analysis. The 95% confidence interval for the differences (after minus before) were â '0.30 (â '1.12 to 0.52), â '1.08 (â '1.83 to â '0.32), and â '0.73 (â '1.30 to â '0.17) for the first, last, and mean IOPs, respectively. The corresponding P values were 0.46 for the first, 0.006 for the last, 0.01 for the mean IOP during the aflibercept treatment period. CONCLUSION:: Intraocular pressure was found to be significantly lower in patients switched to aflibercept after previous treatments with ranibizumab and/or bevacizumab. Aflibercept may have a more favorable IOP safety profile in patients previously on other anti-vascular endothelial growth factor treatments.

Original languageEnglish
Pages (from-to)2161-2166
Number of pages6
JournalRetina
Volume34
Issue number11
DOIs
StatePublished - 12 Nov 2014
Externally publishedYes

Keywords

  • aflibercept
  • bevacizumab
  • intraocular pressure
  • neovascular age-related macular degeneration
  • ranibizumab

Fingerprint

Dive into the research topics of 'Intraocular pressure in patients with neovascular age-related macular degeneration switched to aflibercept injection after previous anti-vascular endothelial growth factor treatments'. Together they form a unique fingerprint.

Cite this