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JOURNAL ARTICLE

Effects of ranibizumab in patients with subfoveal choroidal neovascularization attributable to age-related macular degeneration

Simon P Rothenbuehler, David Waeber, Christian K Brinkmann, Sebastian Wolf, Ute E K Wolf-Schnurrbusch
American Journal of Ophthalmology 2009, 147 (5): 831-7
19217019

PURPOSE: To demonstrate not only prevention of vision loss but also improvement in best-corrected visual acuity (BCVA) after treatment with ranibizumab on a variable-dosing regimen over 24 months in patients with age-related macular degeneration (AMD).

DESIGN: Interventional case series.

METHODS:

SETTING: Institutional.

STUDY POPULATION: One hundred and thirty-eight eyes of 138 patients treated intravitreally with 0.5 mg ranibizumab (Lucentis; Novartis, Basel, Switzerland). Age above 50 years, BCVA 0.2 to 1.2 logarithm of the minimal angle of resolution (logMAR), primary or recurrent subfoveal choroidal neovascularization (CNV) secondary to AMD.

OBSERVATION PROCEDURES: After single initial treatment, monthly follow-up examination. Retreatment in case of one of the following: sign of subretinal fluid or intraretinal edema, increase in central retinal thickness (CRT) on optical coherence tomography (OCT), active CNV on fluorescein angiography, increase of metamorphopsia, and loss of BCVA > 5 letters on Early Treatment Diabetic Retinopathy Study (ETDRS) chart.

MAIN OUTCOME MEASURES: Compared with baseline: proportion of eyes gaining > or = 15 letters, proportion of eyes losing or gaining < 15 letters, change in CRT.

RESULTS: After 24 months, 30% of eyes gained > or = 15 letters. After 24 months, 55% of eyes lost or gained < 15 letters. Mean CRT of 386 +/- 145 microm at baseline was significantly reduced to 211 +/- 39 microm after 24 months (P = .036). Mean injection number per patient was 5.6 +/- 2.9 and 4.3 +/- 3.8 from baseline to month 12 and month 12 to 24, respectively.

CONCLUSION: Intravitreal ranibizumab on a variable-dosing regimen was effective in significantly increasing mean BVCA and reducing CRT. This beneficial outcome was achieved with a low-rate of mild ocular adverse effects among our patients.

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