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Hattenbach, Lars-Olof; Feltgen, Nicolas; Bertelmann, Thomas; Schmitz-Valckenberg, Steffen; Berk, Hüsnü; Eter, Nicole; Lang, Gabriele E.; Rehak, Matus; Taylor, Simon R.; Wolf, Armin; Weiss, Claudia; Paulus, Eva-Maria; Pielen, Amelie und Hörauf, Hans (2018): Head-to-head comparison of ranibizumab PRN versus single-dose dexamethasone for branch retinal vein occlusion (COMRADE-B). In: Acta Ophthalmologica, Bd. 96, Nr. 1, E10-E18

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Abstract

PurposeTo compare the efficacy and safety of ranibizumab 0.5mg versus dexamethasone 0.7mg according to their European labels in macular oedema secondary to branch retinal vein occlusion (BRVO) in a 6-month, phase IIIb, randomized trial. Methods: Patients received either monthly ranibizumab for 3months followed by Pro re nata (PRN) treatment (n=126) or a sustained-release dexamethasone implant followed by PRN sham injections (n=118). Main outcomes were mean average change in best-corrected visual acuity (BCVA) from baseline to month 1 through month 6, mean changes in BCVA and foveal centre point thickness (FCPT), and adverse events (AEs). Results: There was no difference in BCVA gains between the treatments prior to month 3. Best-corrected visual acuity (BCVA) gain with dexamethasone declined thereafter. From month 3 to month 6, mean BCVA change from baseline was significantly higher with ranibizumab than with dexamethasone [raw means (standard deviation):+16.2 (11) letters versus +9.3 (+/- 10.1) letters]. At month 6, the difference in BCVA gains from baseline was +17.3 letters in the ranibizumab versus +9.2 letters in the dexamethasone group. Patients in the ranibizumab group received a mean of 2.94 loading injections and 1.74 PRN retreatment injections, while those in the dexamethasone group received a single loading injection. Elevated intraocular pressure (IOP) and AEs were more frequent with dexamethasone than ranibizumab treatment. Conclusion: Ranibizumab PRN resulted in greater visual acuity (VA) gains in macular oedema following BRVO compared with single-dose dexamethasone over a 6-month study period, observed from month 3, when administered according to their European label. In clinical practice, retreatment with dexamethasone may be required prior to this point.

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