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Angiofibrotic response to vascular endothelial growth factor inhibition in diabetic retinal detachment: report no. 1
Journal article   Open access   Peer reviewed

Angiofibrotic response to vascular endothelial growth factor inhibition in diabetic retinal detachment: report no. 1

Elliott H Sohn, Shikun He, Leo A Kim, Hani Salehi-Had, Michael Javaheri, Christine Spee, Laurie Dustin, David R Hinton and Dean Eliott
Archives of ophthalmology (1960), Vol.130(9), pp.1127-1134
09/2012
DOI: 10.1001/archophthalmol.2012.1611
PMCID: PMC3984910
PMID: 22965588
url
https://doi.org/10.1001/archophthalmol.2012.1611View
Published (Version of record) Open Access

Abstract

OBJECTIVES To assess the effect of bevacizumab injection on connective tissue growth factor (CTGF) and vascular endothelial growth factor (VEGF) in the ocular fluids of patients with diabetic traction retinal detachment, and to determine whether intraoperative and postoperative complications are decreased in eyes given adjunctive preoperative bevacizumab injection. METHODS Twenty eyes of 19 patients were randomized to receive intravitreal bevacizumab or sham injection 3 to 7 days before vitrectomy for severe proliferative diabetic retinopathy. We collected aqueous samples before injection and at the time of vitrectomy and extracted undiluted vitreous samples. RESULTS Five eyes had decreased vascularization of membranes from preinjection to the time of vitrectomy (all in the bevacizumab treatment arm). Median visual acuities were 20/400 in control eyes at baseline and postoperative month 3 (POM3) and 8/200 in the bevacizumab-treated group at baseline and 20/100 at POM3 (P= .30 between control and bevacizumab-treated groups at POM3). All retinas were attached at POM3. Vitreous levels of VEGF were significantly lower in the bevacizumab group than in the control group (P= .03). Vitreous levels of CTGF were slightly lower in the bevacizumab group compared with the control group, but this difference was not statistically significant (P= .38). Levels of CTGF in the aqueous were strongly correlated with CTGF levels in the vitreous of controls (Spearman correlation coefficient, 0.95 [P< .001]). CONCLUSIONS Intravitreal bevacizumab injection reduces vitreous levels of VEGF and produces a clinically observable alteration in diabetic fibrovascular membranes. Ocular fluid levels of CTGF are not significantly affected within the week after VEGF inhibition. Retinal reattachment rates and visual acuity are not significantly altered by preoperative intravitreal bevacizumab injection at POM3. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT01270542.
Diabetic Retinopathy - drug therapy Prospective Studies Double-Blind Method Enzyme-Linked Immunosorbent Assay Intravitreal Injections Humans Middle Aged Male Vascular Endothelial Growth Factor A - metabolism Retinal Detachment - drug therapy Vascular Endothelial Growth Factor A - antagonists & inhibitors Diabetic Retinopathy - metabolism Bevacizumab Aqueous Humor - metabolism Angiogenesis Inhibitors - administration & dosage Antibodies, Monoclonal, Humanized - administration & dosage Vitreous Body - metabolism Adult Female Vitrectomy Visual Acuity - physiology Connective Tissue Growth Factor - metabolism Retinal Detachment - metabolism

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