Intravitreal Medications for Retinal Vein Occlusion: Systematic Review and Meta-analysis

Abstract

Purpose: To evaluate the outcomes of different intravitreal injections for the treatment of retinal vein occlusion including central retinal vein occlusion (CRVO) and branch retinal vein occlusion (BRVO).


Methods: PubMed, Cochrane, the metaRegister of ControlledTrials, and ClinicalTrials were searched for intravitreal anti-Vascular Endothelial Growth Factor (VEGF) and steroids with relevant keywords and date limitation of 2009-2018. Meta-analysis was performed on studies that met the defined inclusion criteria. Main outcomes were visual acuity (VA) and central macular thickness (CMT).


Results: Out of 681 studies, 36 articles (including 21 reporting CRVO and 15 dealing with BRVO) were selected for systematic review. All five intravitreal drugs including triamcinolone, dexamethasone, ranibizumab, bevacizumab, and aflibercept showed improvement of CMT and VA as compared to placebo or laser treatment. Six randomized controlled trials were selected for meta-analysis in RVO patients. The pooled mean difference of visual improvement between sham and ranibizumab was 12.7 Early Treatment for Diabetic Retinopathy Study (ETDRS) letters (95%CI: 11.00 to 13.2), and the pooled mean difference in CMT reduction was 221 μm (95%CI: 153 to 284); both changes were significantly in favor of ranibizumab. The pooled mean difference of visual improvement between bevacizumab and triamcinolone was 5.3 ETDRS letters in favor of bevacizumab (95%CI: 16 μm to 17.5 μm). Triamcinolone led to 68.1 μm greater CMT reduction than bevacizumab (95%CI: 58 μm to 76 μm). However, none of these differences were statistically significant.


Conclusion: Treatment with anti-VEGF agents in RVO is superior to observation. No significant difference was seen between the eyes treated with bevacizumab or triamcinolone based on these results.

Keywords:

Anti-vascular Endothelial Growth Factor; Dexamethasone; Retinal Vein Occlusion; Triamcinolone

References
1. Green WR, Chan CC, Hutchins GM, Terry JM. Central retinal vein occlusion: a prospective histopathologic study
of 29 eyes in 28 cases. Retina 1981;1:27-55.

2. Bertelsen M, Linneberg A, Christoffersen N, Vorum H, Gade E, Larsen M. Mortality in patients with central retinal vein occlusion. Ophthalmology 2014;121:637-642.

3. Elman MJ, Bhatt AK, Quinlan PM, Enger C. The risk for systemic vascular diseases and mortality in patients with central retinal vein occlusion. Ophthalmology 1990;97:1543-1548.

4. Dodson PM, Galton DJ, Hamilton AM, Blach RK. Retinal vein occlusion and the prevalence of lipoprotein abnormalities. Br J Ophthalmol 1982;66:161-164.

5. Koizumi H, Ferrara DC, Brue C, Spaide RF. Central retinal vein occlusion case-control study. Am J Ophthalmol
2007;144:858-863.

6. Wang YX, Zhang JS, You QS, Xu L, Jonas JB. Ocular diseases and 10-year mortality: the Beijing Eye Study
2001/2011. Acta Ophthalmol 2014;92:e424-e428.

7. Hayreh SS. Ocular vascular occlusive disorders: natural history of visual outcome. Prog Retin Eye Res 2014;41:1-25.

8. Glacet-Bernard A, Coscas G, Chabanel A, Zourdani A, Lelong F, Samama MM. Prognostic factors for retinal vein
occlusion: prospective study of 175 cases. Ophthalmology 1996;103:551-560.

9. Argon laser photocoagulation for macular edema in branch vein occlusion. The branch vein occlusion study
group. Am J Ophthalmol 1984;98:271-282.

10. Varma R, Bressler NM, Suner I, Lee P, Dolan CM, Ward J, et al. Improved vision-related function after ranibizumab for macular edema after retinal vein occlusion: results from the BRAVO and CRUISE trials. Ophthalmology 2012;119:2108-2118.

11. Hayreh SS, Podhajsky PA, Zimmerman MB. Branch retinal artery occlusion: natural history of visual outcome. Ophthalmology 2009;116:1188-1194.e1-e4.

12. Oxford Centre for Evidence-Based Medicine. Levels of evidence; 2009 [cited January 31, 2017.]. Available from:
http://www.cebm.net/index. aspx?o.1025.

13. Crowther M, Lim W, Crowther MA. Systematic review and meta-analysis methodology. Blood 2010;116:3140-3146.

14. Moher D, Liberati A, Tetzlaff J, Altman DG, The PG. Preferred reporting items for systematic reviews and
meta-analyses: the PRISMA statement. PLOS Med 2009;6:e1000097.

15. Ip MS, Gottlieb JL, Kahana A, Scott IU, Altaweel MM, Blodi BA, et al. Intravitreal triamcinolone for the treatment of macular edema associated with central retinal vein occlusion. Arch Ophthalmol (Chicago, Ill : 1960) 2004;122:1131-1136.

16. Braithwaite T, Nanji AA, Lindsley K, Greenberg PB. Antivascular endothelial growth factor for macular oedema
secondary to central retinal vein occlusion. Cochrane Database Syst Rev 2014:Cd007325.

17. Mohamed Q, McIntosh RL, Saw SM, Wong TY. Interventions for central retinal vein occlusion: an evidence-based systematic review. Ophthalmology 2007;114:507-519, 524.

18. Ip MS, Scott IU, VanVeldhuisen PC, Oden NL, Blodi BA, Fisher M, et al. A randomized trial comparing the efficacy and safety of intravitreal triamcinolone with observation to treat vision loss associated with macular edema secondary to central retinal vein occlusion: the Standard Care vs Corticosteroid for Retinal Vein Occlusion (SCORE) study report

5. Arch Ophthalmol (Chicago, Ill : 1960) 2009;127:1101-1114. 19. Jonas JB, Degenring RF, Kamppeter BA, Kreissig I,
Akkoyun I. Duration of the effect of intravitreal triamcinolone acetonide as treatment for diffuse diabetic macular
edema. Am J Ophthalmol 2004;138:158-160.

20. Jonas JB, Jonas RA, Neumaier M, Findeisen P. Cytokine concentration in aqueous humor of eyes with diabetic
macular edema. Retina 2012;32:2150-2157.

21. Ramezani A, Esfandiari H, Entezari M, Moradian S, Soheilian M, Dehsarvi B, et al. Three intravitreal bevacizumab versus two intravitreal triamcinolone injections in recent onset central retinal vein occlusion. Acta Ophthalmol 2014;92:e530-e539.

22. Ding X, Li J, Hu X, Yu S, Pan J, Tang S. Prospective study of intravitreal triamcinolone acetonide versus bevacizumab for macular edema secondary to central retinal vein occlusion. Retina 2011;31:838-845.

23. Haller JA, Bandello F, Belfort R, Jr., Blumenkranz MS, Gillies M, Heier J, et al. Randomized, sham-controlled
trial of dexamethasone intravitreal implant in patients with macular edema due to retinal vein occlusion. Ophthalmology 2010;117:1134-1146.e3.

24. Haller JA, Bandello F, Belfort R, Jr., Blumenkranz MS, Gillies M, Heier J, et al. Dexamethasone intravitreal implant in patients with macular edema related to branch or central retinal vein occlusion twelve-month study results. Ophthalmology 2011;118:2453-2460.

25. Bezatis A, Spital G, Hohn F, Maier M, Clemens CR, Wachtlin J, et al. Functional and anatomical results after
a single intravitreal Ozurdex injection in retinal vein occlusion: a 6-month follow-up – the SOLO study. Acta
Ophthalmol 2013;91:e340-e347.

26. Hoerauf H, Feltgen N, Weiss C, Paulus EM, SchmitzValckenberg S, Pielen A, et al. Clinical efficacy and safety
of ranibizumab versus dexamethasone for central retinal vein occlusion (COMRADE C): a European label study. Am J Ophthalmol 2016;169:258-267.

27. Gado AS, Macky TA. Dexamethasone intravitreous implant versus bevacizumab for central retinal vein occlusionrelated macular oedema: a prospective randomized comparison. Clin Exp Ophthalmol 2014;42:650-655.

28. Kinge B, Stordahl PB, Forsaa V, Fossen K, Haugstad M, Helgesen OH, et al. Efficacy of ranibizumab in patients
with macular edema secondary to central retinal vein occlusion: results from the sham-controlled ROCC study.
Am J Ophthalmol 2010;150:310-314.

29. Brown DM, Campochiaro PA, Singh RP, Li Z, Gray S, Saroj N, et al. Ranibizumab for macular edema following central retinal vein occlusion: six-month primary end point results of a phase III study. Ophthalmology 2010;117:1124-1133.e1.

30. Campochiaro PA, Brown DM, Awh CC, Lee SY, Gray S, Saroj N, et al. Sustained benefits from ranibizumab for
macular edema following central retinal vein occlusion: twelve-month outcomes of a phase III study. Ophthalmology 2011;118:2041-2049.

31. Heier JS, Campochiaro PA, Yau L, Li Z, Saroj N, Rubio RG, et al. Ranibizumab for macular edema due to retinal
vein occlusions: long-term follow-up in the HORIZON trial. ophthalmology 2012;119:802-809.

32. Thach AB, Yau L, Hoang C, Tuomi L. Time to clinically significant visual acuity gains after ranibizumab treatment for retinal vein occlusion: BRAVO and CRUISE trials. Ophthalmology 2014;121:1059-1066.

33. Kriechbaum K, Michels S, Prager F, Georgopoulos M, Funk M, Geitzenauer W, et al. Intravitreal Avastin for macular oedema secondary to retinal vein occlusion: a prospective study. Br J Ophthalmol 2008;92:518.

34. Prager F, Michels S, Kriechbaum K, Georgopoulos M, Funk M, Geitzenauer W, et al. Intravitreal bevacizumab
(Avastin) for macular oedema secondary to retinal vein occlusion: 12-month results of a prospective clinical trial.
Br J Ophthalmol 2009;93:452-456.

35. Zhang H, Liu Z-L, Sun P, Gu F. Intravitreal bevacizumab fortreatment of macular edema secondary to central retinal vein occlusion: eighteen-month results of a prospective trial. J Ocul Pharmacol Ther 2011;27:615-621.

36. Epstein DL, Algvere PV, von Wendt G, Seregard S, Kvanta A. Bevacizumab for macular edema in central retinal veinocclusion: a prospective, randomized, double-masked clinical study. Ophthalmology 2012;119:1184-1189.

37. Epstein DL, Algvere PV, von Wendt G, Seregard S, Kvanta A. Benefit from bevacizumab for macular edema in central retinal vein occlusion: twelve-month results of a prospective, randomized study. Ophthalmology 2012;119:2587- 2591.

38. Rajagopal R, Shah GK, Blinder KJ, Altaweel M, Eliott D, Wee R, et al. Bevacizumab versus ranibizumab in the
treatment of macular edema due to retinal vein occlusion: 6-month results of the CRAVE study. Ophthalmic Surg
Lasers Imaging Retina 2015;46:844-850.

39. Costa RA, Jorge R, Calucci D, Melo LA, Jr., Cardillo JA, Scott IU. Intravitreal bevacizumab (avastin) for central and hemicentral retinal vein occlusions: IBeVO study. Retina 2007;27:141-149.

40. Ferrara DC, Koizumi H, Spaide RF. Early bevacizumab treatment of central retinal vein occlusion. Am J Ophthalmol 2007;144:864-871.

41. Pai SA, Shetty R, Vijayan PB, Venkatasubramaniam G,
Yadav NK, Shetty BK, et al. Clinical, anatomic, and electrophysiologic evaluation following intravitreal bevacizumab for macular edema in retinal vein occlusion. Am J Ophthalmol 2007;143:601-606.

42. Mayer WJ, Remy M, Wolf A, Kook D, Kampik A, Ulbig M, et al. Comparison of intravitreal bevacizumab upload
followed by a dexamethasone implant versus dexamethasone implant monotherapy for retinal vein occlusion with macular edema. Ophthalmologica 2012;228:110-116.

43. Boyer D, Heier J, Brown DM, Clark WL, Vitti R, Berliner AJ, et al. Vascular endothelial growth factor Trap-Eye for
macular edema secondary to central retinal vein occlusion: six-month results of the phase 3 COPERNICUS study.
Ophthalmology 2012;119:1024-1032.

44. Brown DM, Heier JS, Clark WL, Boyer DS, Vitti R, Berliner AJ, et al. Intravitreal aflibercept injection for macular
edema secondary to central retinal vein occlusion: 1- year results from the phase 3 COPERNICUS study. Am J
Ophthalmol 2013;155:429-437.e7.

45. Heier JS, Clark WL, Boyer DS, Brown DM, Vitti R, Berliner AJ, et al. Intravitreal aflibercept injection for macular
edema due to central retinal vein occlusion: two-year results from the COPERNICUS study. Ophthalmology
2014;121:1414-1420.e1.

46. Holz FG, Roider J, Ogura Y, Korobelnik JF, Simader C, Groetzbach G, et al. VEGF Trap-Eye for macular oedema
secondary to central retinal vein occlusion: 6-month results of the phase III GALILEO study. Br J Ophthalmol
2013;97:278-284.

47. Korobelnik JF, Holz FG, Roider J, Ogura Y, Simader C, Schmidt-Erfurth U, et al. Intravitreal aflibercept injection
for macular edema resulting from central retinal vein occlusion: one-year results of the phase 3 GALILEO study.
Ophthalmology 2014;121:202-208.

48. Ogura Y, Roider J, Korobelnik JF, Holz FG, Simader C, Schmidt-Erfurth U, et al. Intravitreal aflibercept for macular edema secondary to central retinal vein occlusion: 18- month results of the phase 3 GALILEO study. Am J
Ophthalmol 2014;158:1032-1038.

49. Saishin Y, Ito Y, Fujikawa M, Sawada T, Ohji M. Comparison between ranibizumab and aflibercept for macular edema associated with central retinal vein occlusion. Jpn J Ophthalmol 2017;61:67-73.

50. Scott IU, VanVeldhuisen PC, Ip MS, Blodi BA, Oden NL, Awh CC, et al. Effect of bevacizumab vs aflibercept on
visual acuity among patients with macular edema due to central retinal vein occlusion: the SCORE2 randomized
clinical trial. JAMA 2017;317:2072-2087.

51. Casselholm de Salles M, Amren U, Kvanta A, Epstein DL. Injection frequency of aflibercept versus ranibizumab in a treat-and-extend regimen for central retinal vein occlusion: a randomized clinical trial. Retina 2019;39:1370-1376.

52. Bavbek T, Yenice O, Toygar O. Problems with attempted chorioretinal venous anastomosis by laser for nonischemic CRVO and BRVO. Ophthalmologica 2005;219:267-271.

53. Raszewska-Steglinska M, Gozdek P, Cisiecki S, Michalewska Z, Michalewski J, Nawrocki J. Pars plana
vitrectomy with ILM peeling for macular edema secondary to retinal vein occlusion. Eur J Ophthalmol 2009;19:1055- 1062.

54. Scott IU, Ip MS, VanVeldhuisen PC, Oden NL, Blodi BA, Fisher M, et al. A randomized trial comparing the efficacy and safety of intravitreal triamcinolone with standard care to treat vision loss associated with macular Edema secondary to branch retinal vein occlusion: the Standard Care vs Corticosteroid for Retinal Vein Occlusion (SCORE) study report 6. Arch Ophthalmol (Chicago, Ill : 1960) 2009;127:1115-1128.

55. Guignier B, Subilia-Guignier A, Fournier I, Ballonzoli L, Speeg-Schatz C, Gaucher D. Prospective pilot study:
efficacy of intravitreal dexamethasone and bevacizumab injections in the treatment of macular oedema associated with branch retinal vein occlusion. Ophthalmologica 2013;230:43-9.

56. Campochiaro PA, Heier JS, Feiner L, Gray S, Saroj N, Rundle AC, et al. Ranibizumab for macular edema following branch retinal vein occlusion: six-month primary end point results of a phase III study. Ophthalmology 2010;117:1102- 1112.e1.

57. Brown DM, Campochiaro PA, Bhisitkul RB, Ho AC, Gray S, Saroj N, et al. Sustained benefits from ranibizumab for macular edema following branch retinal vein occlusion: 12-month outcomes of a phase III study. Ophthalmology 2011;118:1594-1602.

58. Tadayoni R, Waldstein SM, Boscia F, Gerding H, Pearce I, Priglinger S, et al. Individualized stabilization criteriadriven ranibizumab versus laser in branch retinal vein occlusion: six-month results of BRIGHTER. Ophthalmology 2016;123:1332-1344.

59. Tan MH, McAllister IL, Gillies ME, Verma N, Banerjee G, Smithies LA, et al. Randomized controlled trial of
intravitreal ranibizumab versus standard grid laser for macular edema following branch retinal vein occlusion.
Am J Ophthalmol 2014;157:237-247.e1.

60. Pielen A, Mirshahi A, Feltgen N, Lorenz K, Korb C, Junker B, et al. Ranibizumab for Branch Retinal Vein Occlusion Associated Macular Edema Study (RABAMES): six-month results of a prospective randomized clinical trial. Acta Ophthalmol 2015;93:e29-e37.

61. Ehlers JP, Decroos FC, Fekrat S. Intravitreal bevacizumab for macular edema secondary to branch retinal vein
occlusion. Retina 2011;31:1856-1862.

62. Moradian S, Faghihi H, Sadeghi B, Piri N, Ahmadieh H, Soheilian M, et al. Intravitreal bevacizumab vs. sham
treatment in acute branch retinal vein occlusion with macular edema: results at 3 months (Report 1). Graefe Arch
Clin Exp Ophthalmol 2011;249:193-200.

63. Russo V, Barone A, Conte E, Prascina F, Stella A, Noci ND. Bevacizumab compared with macular laser grid photocoagulation for cystoid macular edema in branch retinal vein occlusion. Retina 2009;29:511-515.

64. Parodi MB, Iacono P, Bandello F. Subthreshold grid laser versus intravitreal bevacizumab as second-line therapy for macular edema in branch retinal vein occlusion recurring after conventional grid laser treatment. Graefe Arch Clin Exp Ophthalmol 2015;253:1647-1651.

65. Narayanan R, Panchal B, Das T, Chhablani J, Jalali S, Ali MH. A randomised, double-masked, controlled study of
the efficacy and safety of intravitreal bevacizumab versus ranibizumab in the treatment of macular oedema due to branch retinal vein occlusion: MARVEL Report No. 1. Br J Ophthalmol 2015;99:954-959.

66. Cekic O, Cakir M, Yazici AT, Alagoz N, Bozkurt E, Faruk Yilmaz O. A comparison of three different intravitreal
treatment modalities of macular edema due to branch retinal vein occlusion. Curr Eye Res 2010;35:925-929.

67. Higashiyama T, Sawada O, Kakinoki M, Sawada T, Kawamura H, Ohji M. Prospective comparisons of intravitreal injections of triamcinolone acetonide and bevacizumab for macular oedema due to branch retinal vein occlusion. Acta Ophthalmol 2013;91:318-324.

68. Campochiaro PA, Clark WL, Boyer DS, Heier JS, Brown DM, Vitti R, et al. Intravitreal aflibercept for macular
edema following branch retinal vein occlusion: the 24- week results of the VIBRANT study. Ophthalmology
2015;122:538-544.

69. Clark WL, Boyer DS, Heier JS, Brown DM, Haller JA, Vitti R, et al. Intravitreal aflibercept for macular edema
following branch retinal vein occlusion: 52-week results of the VIBRANT study. Ophthalmology 2016;123:330-336.

70. Ehlers JP, Kim SJ, Yeh S, Thorne JE, Mruthyunjaya P, Schoenberger SD, et al. Therapies for macular edema
associated with branch retinal vein occlusion: a report by the American Academy of Ophthalmology. Ophthalmology 2017;124:1412-1423.

71. Zacharias LC, Lin T, Migon R, Ghosn C, Orilla W, Feldmann B, et al. Assessment of the differences in pharmacokinetics and pharmacodynamics between four distinct formulations of triamcinolone acetonide. Retina 2013;33:522-531.