Changes in intraocular pressure in study and fellow eyes in the IVAN trial

Foss, Alexander J.E., Scott, Lauren J., Rogers, Chris A., Reeves, Barney C., Ghanchi, Faruque, Gibson, Jonathan, Chakravarthy, Usha and , IVAN study group (2016). Changes in intraocular pressure in study and fellow eyes in the IVAN trial. British Journal of Ophthalmology, Online ,

Abstract

PURPOSE: To describe changes in intraocular pressure (IOP) in the 'alternative treatments to Inhibit VEGF in Age-related choroidal Neovascularisation (IVAN)' trial (registered as ISRCTN92166560). DESIGN: Randomised controlled clinical trial with factorial design. PARTICIPANTS: Patients (n=610) with treatment naïve neovascular age-related macular degeneration were enrolled and randomly assigned to receive either ranibizumab or bevacizumab and to two regimens, namely monthly (continuous) or as needed (discontinuous) treatment. METHODS: At monthly visits, IOP was measured preinjection in both eyes, and postinjection in the study eye. OUTCOME MEASURES: The effects of 10 prespecified covariates on preinjection IOP, change in IOP (postinjection minus preinjection) and the difference in preinjection IOP between the two eyes were examined. RESULTS: For every month in trial, there was a statistically significant rise in both the preinjection IOP and the change in IOP postinjection during the time in the trial (estimate 0.02 mm Hg, 95% CI 0.01 to 0.03, p<0.001 and 0.03 mm Hg, 95% CI 0.01 to 0.04, p=0.002, respectively). There was also a small but significant increase during the time in trial in the difference in IOP between the two eyes (estimate 0.01 mm Hg, 95% CI 0.005 to 0.02, p<0.001). There were no differences between bevacizumab and ranibizumab for any of the three outcomes (p=0.93, p=0.22 and p=0.87, respectively). CONCLUSIONS: Anti-vascular endothelial growth factor agents induce increases in IOP of small and uncertain clinical significance.

Publication DOI: https://doi.org/10.1136/bjophthalmol-2015-307595
Divisions: Life & Health Sciences > Ophthalmic Research Group
Life & Health Sciences
Life & Health Sciences > Optometry
Additional Information: This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Uncontrolled Keywords: Ophthalmology,Sensory Systems,Cellular and Molecular Neuroscience
Full Text Link: http://bjo.bmj.com/content/early/2016/04/12/bjophthalmol-2015-307595
Related URLs: http://www.scopus.com/inward/record.url?scp=84964692042&partnerID=8YFLogxK (Scopus URL)
Published Date: 2016-04-12
Authors: Foss, Alexander J.E.
Scott, Lauren J.
Rogers, Chris A.
Reeves, Barney C.
Ghanchi, Faruque
Gibson, Jonathan ( 0000-0002-9281-5244)
Chakravarthy, Usha
, IVAN study group

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