Table 1.
Study name | n | Drug and dose | Mean IVIs | Mean f/u | Outcomes |
---|---|---|---|---|---|
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Campochiaro 2008 | 20 pt | Ranibizumab 0.3 mg (n = 10) or 0.5 mg (n = 10) | 3 | 3 m | At 3 m, median BCVA gain of 17 letters in 0.3 mg group, 14 letters in 0.5 mg group, with 93% and 89% reduction in excess ME at 3 m, respectively |
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Costa 2007 (IBeVO Study) | 7 pt | Bevacizumab 2.0 mg | 3 | 25 w | Mean BCVA (LogMAR) improved from 1.21 to 0.68 |
All I | Mean CRT improved from 730 to 260 μm | ||||
No significant adverse events Side effects = SCH and conjunctival hyperemia | |||||
| |||||
Hoeh 2009 | 27 eyes | Bevacizumab 2.5 mg | 4.1 | 61 w | At last follow up: |
VA (LogMAR) improved from baseline, 0.75+/-0.38, to 0.57+/-0.48 | |||||
Mean CRT decreased from 748+/-265 μm to 373+/-224 μm | |||||
33% (n = 9) had no ME recurrence, 30% (n = 8) had no significant response to treatment | |||||
| |||||
Hsu 2007 | 30 eyes of 29 pt | Bevacizumab 1.25 mg | 2.4 | 18 w | Improvement in Snellen BCVA from 20/394 to 20/187 at 2 m (NB n = 14 treated with IVTA > 3 m previously) |
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Iturralde 2006 | 16 eyes of 15 pt | Bevacizumab 1.25 mg | 2.8 | 3 m | BCVA improved from 1.48 at baseline to 1.05 at 1 m, 0.84 at 3 m |
CRT improved from 887 to 372 μm at 1 m | |||||
(NB n = 9 had prior treatment with IVTA) | |||||
| |||||
Kriechbaum 2008 | 8 eyes | Bevacizumab 1 mg | 4.8 | 6 m | No significant improvement at 6m:mean BCVA improved from 35 letters (20/200) to 47 letters (20/125) |
All NI | CRT reduced from 585 to 489 μm | ||||
| |||||
Moschos 2008 | 10 eyes | Bevacizumab 1.25 mg | 1 | 3 m | No improvement in mean BCVA at 3 m |
CRT reduced from 642 to 367 μm at 3 m | |||||
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Pai 2007 | 9 eyes | Bevacizumab 1.25 mg | 1 | 3 m | No significant improvement in mean BCVA, from baseline LogMAR 1.3 to 1.14 at 3 m Significant reduction in mean CRT from 615 to 252 μm |
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Pieramici 2008 | 10 eyes | Ranibizumab 0.3 mg (n = 5) or 0.5 mg (n = 5) | 4.5 | 9 m | Compared to baseline BCVA, ≥ 15 letter improvement was seen in n = 4 at 3 m, and persisted in n = 3 at 9 m |
All NI | Mean reduction in CRT from baseline was 272 μm at 3 m and 119 μm at 9 m | ||||
No effect of dose on outcome No adverse effects, but n = 1 developed severe rebound edema | |||||
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Pournaras 2008 | 8 eyes (6 NI, 2 I) | Bevacizumab 1.25 mg | 1.75 | 3.25 m | Mean BCVA (LogMAR) improved from 0.84 to 0.3 at 3 m and CRT improved from 771 to 344 μm |
No adverse events | |||||
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Prager 2009 | 8 eyes | Bevacizumab 1 mg to 2.5 mg | 8 | 12 m | BCVA improved by 7 letters (not significant). CRT reduced by 268 μm compared to baseline (P = 0.007) |
2 eyes lost to f/u | |||||
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Priglinger 2007 | 46 eyes (30 NI, 16 I) | Bevacizumab 1.25 mg | 2.96 | 6 m | Mean letter gain at 6 m was 13.9 |
At baseline vs 6 m, BCVA was < 20/200 in 52% vs 22%, 20/200 to 20/50 in 46% vs 50% and better than 20/50 in n = 1 vs 28% | |||||
CRT declined from 535 μm at baseline to 323 μm at 6 m | |||||
No adverse events | |||||
NB n = 26 had prior treatment with IVTA/RON/ PRP | |||||
| |||||
Rensch 2009 | 25 eyes All NI | Bevacizumab 1.5 mg | 3 | 6 m | Mean duration of CRVO prior to treatment was 4.2 (sd 3.6) days |
Significant improvement in mean VA(logMAR) from 0.97 (+/-0.40) at baseline to 0.69 +/-0.52 at 6 m (P = 0.015); 56% patients improved by 3 or more lines. Significant reduction in mean CRT from 530+/-152 μmat baseline to 346 +/-129 μm at 6 m (P < 0.001). | |||||
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Rouvas 2009 | 12 eyes | Ranibizumab (dose not specified) | 7.4 | 12 m | Mean CRT improved from 480+/-166 μm at baseline to 230 +/-33 μm (P < 0.001) at 12 m. Compared to baseline, n = 8 had >= 15 letter improvement in VA, n = 3 had stable VA and n = 1 had worse VA. |
9 NI, 3 I | None of the n = 9 with NICRVO converted to ischemic CRVO at 12 m | ||||
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Schaal 2007 | 18 pt | Bevacizumab 2.5 mg | 2.6±1.4 | 23 w | At last visit 73.3% had ≥ 15 letter improvement on ETDRS |
Mean CRT decreased from 921 μm to 239 μm | |||||
No complications or side effects | |||||
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Stahl 2007 | 14 eyes | Bevacizumab 1.25 mg | 1 | 8.9 w | Mean BCVA (LogMAR) improved from 0.58 at baseline to 0.30 at 3 w, 0.31 at 6 w and 0.44 at 9 w |
Mean CRT improved from 585 μm at baseline to 299 μm at 3 w, 424 μm at 6 w and 474 μm at 9 w | |||||
Treatment within 3 m of onset versus later had better visual outcome (P = 0.05) | |||||
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Wu 2010 | 44 eyes | Bevacizumab 1.25 mg or 2.5 mg | 7.2 (for 1.25 mg group) | 24 m | Mean LogMAR BCVA improved significantly by 0.35 +/-0.57 units in the 1.25 mg group*, and 0.27 +/- 0.68 units in the 2.5 mg group* |
8.1 (for 2.5 mg group) | In the 1.25 mg group, 56.8% gained 15 letters or more (ETDRS chart), and 13.6% lost 15 letters or more. CRT improved from 635+/-324 μm at baseline to 264+/-160 μm* | ||||
In the 2.5 mg group, 57.1% gained 15 letters or more (ETDRS chart), and 16.7% lost 15 letters or more. CRT improved from 528+/-213 μm at baseline to 293+/-137 μm* | |||||
* P < 0.0001, compared to baseline | |||||
No statistically significant differences between the different doses were observed |
BCVA: best-corrected visual acuity
CRT: central retinal thickness
ETDRS: Early Treatment Diabetic Retinopathy Study
f/u: follow up
I: ischemic (NB - definitions differ by author)
IVIs: intravitreal injections
IVTA: intravitreal triamcinolone
LogMAR: logarithm of minimal angle of resolution
μm: micrometers
m: months
mg: milligram
NI: non-ischemic
pt: patient
PRP: pan-retinal photocoagulation
RON: radical optic neurotomy
SCH: sub-conjunctival hemorrhage
vs: versus
w: weeks