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Profile of ocriplasmin and its potential in the treatment of vitreomacular adhesion

Authors Stefanini F, Maia M, Falabella P, Pfister M, Niemeyer M, Kashani A, Humayun M, Koss M

Received 14 December 2013

Accepted for publication 15 January 2014

Published 6 May 2014 Volume 2014:8 Pages 847—856

DOI https://doi.org/10.2147/OPTH.S32274

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 5


Francisco R Stefanini,1–3 Maurício Maia,1 Paulo Falabella,1–3 Marcel Pfister,2,3 Moritz Niemeyer,2 Amir H Kashani,3 Mark S Humayun,3 Michael J Koss2,3,4

1
Retina Division, Department of Ophthalmology and Visual Sciences, Federal University of Sao Paulo, Sao Paulo, Brazil; 2Doheny Eye Institute, Los Angeles, CA, USA; 3Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA; 4Department of Ophthalmology, Goethe University, Frankfurt/Main, Germany

Abstract: The recent approval by the US Food and Drug Administration of ocriplasmin for the treatment of symptomatic vitreomacular adhesion (VMA), often associated with vitreomacular traction (VMT) and macular hole (MH), has brought new attention to the field of pharmacologic vitreolysis. The need for an enzyme to split the vitreomacular interface, which is formed by a strong adhesive interaction between the posterior vitreous cortex and the internal limiting membrane, historically stems from pediatric eye surgery. This review summarizes the different anatomic classifications of posterior vitreous detachment or anomalous posterior vitreous detachment and puts these in the context of clinical pathologies commonly observed in clinical practice of the vitreoretinal specialist, such as MH, VMT, age-related macular degeneration, and diabetic macular edema. We revisit the outcome of the Phase II studies that indicated ocriplasmin was a safe and effective treatment for selected cases of symptomatic VMA and MH. Release of VMA at day 28 was achieved by 26.5% of patients in the ocriplasmin group versus 10.1% in the placebo group (P<0.001). Interestingly, for MHs, the numbers were more remarkable. Predictive factors for successful ocriplasmin treatment were identified for VMT (VMA diameter smaller than 1,500 µm) and MH (smaller than 250 µm). In comparison with the highly predictable outcome after vitrectomy, the general success rate of ocriplasmin not under clinical trial conditions has not fully met expectations and needs to be proven in real-world clinical settings. The ocriplasmin data will be compared in the future with observational data on spontaneous VMA release, will help retina specialists make more accurate predictions, and will improve outcome rates.

Keywords: ocriplasmin, microplasmin, posterior vitreous detachment, vitreomacular traction, macular hole, pharmacologic vitreolysis

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