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      Incomplete Vitreomacular Traction Release Using Intravitreal Ocriplasmin

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          Purpose: To report the clinical course of our first 7 consecutive patients treated with intravitreal ocriplasmin (Jetrea®). Methods: Retrospective case series of the first 7 patients treated with ocriplasmin between January and December 2013 at an academic tertiary care center. Results: The average age was 78.4 years (range: 63-92). Five patients were pseudophakic and 2 patients were phakic in the injected eye. The median baseline visual acuity (VA) was 20/60 (range: 20/25 to 20/200). The median 1-month postinjection VA was 20/70, with a mean loss of 2 lines of VA among all patients. None of the patients had complete resolution of their vitreomacular traction or macular hole at 1 month of follow-up. Three patients had subsequent pars plana vitrectomy and membrane peeling surgery. The mean follow-up period for those who did not undergo vitrectomy was 9 months (range: 1-13). One patient with known ocular hypertension had an increase in intraocular pressure requiring topical pressure-lowering eyedrops. There were no cases of postinjection uveitis, endophthalmitis, retinal tears, or retinal detachment. Conclusions: While ocriplasmin may be a viable pharmacological agent for vitreolysis, we present a series of patients that all had incomplete resolution of vitreomacular traction with and without full-thickness macular hole. There was an associated reduction in VA after ocriplasmin treatment at 1 month of follow-up. Careful analysis of the vitreoretinal interface and comorbid eye conditions is required to optimize outcome success with ocriplasmin.

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          Enzymatic vitreolysis with ocriplasmin for vitreomacular traction and macular holes.

          Vitreomacular adhesion can lead to pathologic traction and macular hole. The standard treatment for severe, symptomatic vitreomacular adhesion is vitrectomy. Ocriplasmin is a recombinant protease with activity against fibronectin and laminin, components of the vitreoretinal interface. We conducted two multicenter, randomized, double-blind, phase 3 clinical trials to compare a single intravitreal injection of ocriplasmin (125 μg) with a placebo injection in patients with symptomatic vitreomacular adhesion. The primary end point was resolution of vitreomacular adhesion at day 28. Secondary end points were total posterior vitreous detachment and nonsurgical closure of a macular hole at 28 days, avoidance of vitrectomy, and change in best-corrected visual acuity. Overall, 652 eyes were treated: 464 with ocriplasmin and 188 with placebo. Vitreomacular adhesion resolved in 26.5% of ocriplasmin-injected eyes and in 10.1% of placebo-injected eyes (P<0.001). Total posterior vitreous detachment was more prevalent among the eyes treated with ocriplasmin than among those injected with placebo (13.4% vs. 3.7%, P<0.001). Nonsurgical closure of macular holes was achieved in 40.6% of ocriplasmin-injected eyes, as compared with 10.6% of placebo-injected eyes (P<0.001). The best-corrected visual acuity was more likely to improve by a gain of at least three lines on the eye chart with ocriplasmin than with placebo. Ocular adverse events (e.g., vitreous floaters, photopsia, or injection-related eye pain--all self-reported--or conjunctival hemorrhage) occurred in 68.4% of ocriplasmin-injected eyes and in 53.5% of placebo-injected eyes (P<0.001), and the incidence of serious ocular adverse events was similar in the two groups (P=0.26). Intravitreal injection of the vitreolytic agent ocriplasmin resolved vitreomacular traction and closed macular holes in significantly more patients than did injection of placebo and was associated with a higher incidence of ocular adverse events, which were mainly transient. (Funded by ThromboGenics; ClinicalTrials.gov numbers, NCT00781859 and NCT00798317.).
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            Anatomical and visual outcomes following ocriplasmin treatment for symptomatic vitreomacular traction syndrome.

            To evaluate the anatomical and visual outcomes of patients treated with ocriplasmin for the treatment of symptomatic vitreomacular adhesion (sVMA), including vitreomacular traction syndrome and macular holes.
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              Initial outcomes following intravitreal ocriplasmin for treatment of symptomatic vitreomacular adhesion.

              When delivered via a single intravitreal injection, ocriplasmin can effect proteolytic resolution of symptomatic vitreomacular adhesion (VMA). The authors describe their initial clinical experience with ocriplasmin at a large academic center. Retrospective review of all patients with symptomatic VMA treated with ocriplasmin from January 2013 through May 2013 at a single center. Nineteen patients with symptomatic VMA received intravitreal ocriplasmin. Eight patients (42%) exhibited resolution of VMA. Macular holes in three of six patients (50%) closed after injection. A higher proportion of VMA resolution was observed in patients with the following baseline characteristics: age less than 65 years, focal adhesions less than or equal to 1,500 μm, presence of macular hole, phakic status, and absence of epiretinal membrane. Initial clinical outcomes using ocriplasmin in this study are consistent with those reported in the phase 3 clinical trials. Improved clinical results can be achieved with careful case selection based on specific baseline characteristics. Copyright 2013, SLACK Incorporated.

                Author and article information

                Case Reports in Ophthalmology
                S. Karger AG
                September – December 2014
                12 December 2014
                : 5
                : 3
                : 455-462
                Department of Ophthalmology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
                Author notes
                *Eric K. Chin, MD, Department of Ophthalmology, University of Iowa, 200 Hawkins Dr., Iowa City, IA 52242 (USA), E-Mail chin.eric@gmail.com
                370024 PMC4296250 Case Rep Ophthalmol 2014;5:455-462
                © 2014 S. Karger AG, Basel

                Open Access License: This is an Open Access article licensed under the terms of the Creative Commons Attribution-NonCommercial 3.0 Unported license (CC BY-NC) ( http://www.karger.com/OA-license), applicable to the online version of the article only. Distribution permitted for non-commercial purposes only. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                Page count
                Figures: 3, Tables: 2, Pages: 8
                Published: December 2014


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