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Ophthalmology. 2010 Jun;117(6):1102-1112.e1. doi: 10.1016/j.ophtha.2010.02.021. Epub 2010 Apr 15.

Ranibizumab for macular edema following branch retinal vein occlusion: six-month primary end point results of a phase III study.

Author information

1
The Wilmer Eye Institute, Department of Ophthalmology and Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21287-9277, USA. pcampo@jhmi.edu

Abstract

PURPOSE:

To assess efficacy and safety of intraocular injections of 0.3 mg or 0.5 mg ranibizumab in patients with macular edema following branch retinal vein occlusion (BRVO).

DESIGN:

Prospective, randomized, sham injection-controlled, double-masked, multicenter clinical trial.

PARTICIPANTS:

A total of 397 patients with macular edema following BRVO.

METHODS:

Eligible patients were randomized 1:1:1 to receive monthly intraocular injections of 0.3 mg or 0.5 mg of ranibizumab or sham injections.

MAIN OUTCOME MEASURES:

The primary efficacy outcome measure was mean change from baseline best-corrected visual acuity (BCVA) letter score at month 6. Secondary outcomes included other parameters of visual function and central foveal thickness (CFT).

RESULTS:

Mean (95% confidence interval [CI]) change from baseline BCVA letter score at month 6 was 16.6 (14.7-18.5) and 18.3 (16.0-20.6) in the 0.3 mg and 0.5 mg ranibizumab groups and 7.3 (5.1-9.5) in the sham group (P<0.0001 for each ranibizumab group vs sham). The percentage of patients who gained > or =15 letters in BCVA at month 6 was 55.2% (0.3 mg) and 61.1% (0.5 mg) in the ranibizumab groups and 28.8% in the sham group (P<0.0001 for each ranibizumab group vs sham). At month 6, significantly more ranibizumab-treated patients (0.3 mg, 67.9%; 0.5 mg, 64.9%) had BCVA of > or =20/40 compared with sham patients (41.7%; P<0.0001 for each ranibizumab group vs sham); and CFT had decreased by a mean of 337 microm (0.3 mg) and 345 microm (0.5 mg) in the ranibizumab groups and 158 microm in the sham group (P<0.0001 for each ranibizumab group vs sham). The median percent reduction in excess foveal thickness at month 6 was 97.0% and 97.6% in 0.3 mg and 0.5 mg groups and 27.9% in the sham group. More patients in the sham group (54.5%) received rescue grid laser compared with the 0.3 mg (18.7%) and 0.5 mg (19.8%) ranibizumab groups. The safety profile was consistent with previous phase III ranibizumab trials, and no new safety events were identified in patients with BRVO.

CONCLUSIONS:

Intraocular injections of 0.3 mg or 0.5 mg ranibizumab provided rapid, effective treatment for macular edema following BRVO with low rates of ocular and nonocular safety events.

PMID:
20398941
DOI:
10.1016/j.ophtha.2010.02.021
[Indexed for MEDLINE]

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