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Li J, Zhao T, Sun Y. Interleukin-17A in diabetic retinopathy: The crosstalk of inflammation and angiogenesis. Biochem Pharmacol 2024; 225:116311. [PMID: 38788958 DOI: 10.1016/j.bcp.2024.116311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 05/19/2024] [Accepted: 05/21/2024] [Indexed: 05/26/2024]
Abstract
Diabetic retinopathy (DR) is a severe ocular complication of diabetes which can leads to irreversible vision loss in its late-stage. Chronic inflammation results from long-term hyperglycemia contributes to the pathogenesis and progression of DR. In recent years, the interleukin-17 (IL-17) family have attracted the interest of researchers. IL-17A is the most widely explored cytokine in IL-17 family, involved in various acute and chronic inflammatory diseases. Growing body of evidence indicate the role of IL-17A in the pathogenesis of DR. However, the pro-inflammatory and pro-angiogenic effect of IL-17A in DR have not hitherto been reviewed. Gaining an understanding of the pro-inflammatory role of IL-17A, and how IL-17A control/impact angiogenesis pathways in the eye will deepen our understanding of how IL-17A contributes to DR pathogenesis. Herein, we aimed to thoroughly review the pro-inflammatory role of IL-17A in DR, with focus in how IL-17A impact inflammation and angiogenesis crosstalk.
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Affiliation(s)
- Jiani Li
- Department of Ophthalmology, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, China
| | - Tantai Zhao
- Department of Ophthalmology, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, China
| | - Yun Sun
- Department of Ophthalmology, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, China.
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2
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Karimi M, Abrishami M, Farzadnia M, Kamali H, Malaekeh-Nikouei B. In-situ forming biodegradable implants for sustained Fluocinolone acetonide release to the posterior eye: In-vitro and in-vivo investigations in rabbits. Int J Pharm 2024; 654:123973. [PMID: 38458402 DOI: 10.1016/j.ijpharm.2024.123973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/02/2024] [Accepted: 03/03/2024] [Indexed: 03/10/2024]
Abstract
Delivering medication to the posterior segment of the eye presents a significant challenge. Intravitreal injection has emerged as the preferred method for drug delivery to this area. However, current injectable non-biodegradable implants for fluocinolone acetonide (FA) require surgical removal after prolonged drug release, potentially affecting patient compliance. This study aimed to develop an in-situ forming biodegradable implant (ISFBI) optimal formulation containing PLGA504H and PLGA756S (50:50 w/w%) with the additive NMP solvent. The goal was to achieve slow and controlled release of FA over a two-month period with lower burst release, following a single intravitreal injection. Through morphology, rheology, stability and in-vitro release evaluations, the optimal formulation demonstrated low viscosity (0.12-1.25 Pa. s) and sustained release of FA at a rate of 0.36 µg/day from the third day up to two months. Furthermore, histopathology and in-vivo studies were conducted after intravitreal injection of the optimal formulation in rabbits' eye. Pharmacokinetic analysis demonstrated mean residence time (MRT) of 20.02 ± 0.6 days, half-life (t1/2) of 18.80 ± 0.4 days, and clearance (Cl) of 0.29 ± 0.03 ml/h for FA in the vitreous humor, indicating sustained and slow absorption of FA by the targeted retinal tissue from vitrea over the two-month period and eliminating through the anterior section of the eye, as revealed by its presence in the aqueous humor. Additionally, FA exhibited no detection in the blood and no evidence of systemic side effects or damage on the retinal layer and other organs. Based on these findings, it can be concluded that in-situ forming injectable biodegradable PLGA implants can show promise as a long-acting and controlled-release system for intraocular drug delivery.
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Affiliation(s)
- Malihe Karimi
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mojtaba Abrishami
- Department of Ophthalmology, Eye Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Farzadnia
- Department of Pathology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Kamali
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Bizhan Malaekeh-Nikouei
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
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3
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Sapowadia A, Ghanbariamin D, Zhou L, Zhou Q, Schmidt T, Tamayol A, Chen Y. Biomaterial Drug Delivery Systems for Prominent Ocular Diseases. Pharmaceutics 2023; 15:1959. [PMID: 37514145 PMCID: PMC10383518 DOI: 10.3390/pharmaceutics15071959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/26/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Ocular diseases, such as age-related macular degeneration (AMD) and glaucoma, have had a profound impact on millions of patients. In the past couple of decades, these diseases have been treated using conventional techniques but have also presented certain challenges and limitations that affect patient experience and outcomes. To address this, biomaterials have been used for ocular drug delivery, and a wide range of systems have been developed. This review will discuss some of the major classes and examples of biomaterials used for the treatment of prominent ocular diseases, including ocular implants (biodegradable and non-biodegradable), nanocarriers (hydrogels, liposomes, nanomicelles, DNA-inspired nanoparticles, and dendrimers), microneedles, and drug-loaded contact lenses. We will also discuss the advantages of these biomaterials over conventional approaches with support from the results of clinical trials that demonstrate their efficacy.
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Affiliation(s)
- Avin Sapowadia
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Delaram Ghanbariamin
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Libo Zhou
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Qifa Zhou
- Department of Biomedical Engineering and Ophthalmology, University of Southern California, Los Angeles, CA 90089, USA
| | - Tannin Schmidt
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Ali Tamayol
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Yupeng Chen
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
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4
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Hashida N, Nishida K. Recent advances and future prospects: current status and challenges of the intraocular injection of drugs for vitreoretinal diseases. Adv Drug Deliv Rev 2023; 198:114870. [PMID: 37172783 DOI: 10.1016/j.addr.2023.114870] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 04/07/2023] [Accepted: 05/07/2023] [Indexed: 05/15/2023]
Abstract
Effective drug therapy for vitreoretinal disease is a major challenge in the field of ophthalmology; various protective systems, including anatomical and physiological barriers, complicate drug delivery to precise targets. However, as the eye is a closed cavity, it is an ideal target for local administration. Various types of drug delivery systems have been investigated that take advantage of this aspect of the eye, enhancing ocular permeability and optimizing local drug concentrations. Many drugs, mainly anti-VEGF drugs, have been evaluated in clinical trials and have provided clinical benefit to many patients. In the near future, innovative drug delivery systems will be developed to avoid frequent intravitreal administration of drugs and maintain effective drug concentrations for a long period of time. Here, we review the published literature on various drugs and administration routes and current clinical applications. Recent advances in drug delivery systems are discussed along with future prospects.
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Affiliation(s)
- Noriyasu Hashida
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan.
| | - Kohji Nishida
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan; Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University Graduate School of Medicine, Osaka, Japan
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5
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Mushtaq Y, Mushtaq MM, Gatzioufas Z, Ripa M, Motta L, Panos GD. Intravitreal Fluocinolone Acetonide Implant (ILUVIEN ®) for the Treatment of Retinal Conditions. A Review of Clinical Studies. Drug Des Devel Ther 2023; 17:961-975. [PMID: 37020801 PMCID: PMC10069638 DOI: 10.2147/dddt.s403259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/22/2023] [Indexed: 04/07/2023] Open
Abstract
Fluocinolone acetonide (FAc) intravitreal implant (Iluvien®) is a corticosteroid implant indicated for the treatment of diabetic macular oedema (DMO) in patients who have previously received conventional treatment without good response, non-infectious posterior uveitis, and as an off-label treatment of the macular oedema secondary to retinal vein occlusion. FAc is a non-biodegradable 0.19 mg intravitreal implant which is designed to release FAc over 3 years at a rate of approximately 0.2 mcg per day. The aim of this review is to describe the special pharmacological properties of Iluvien and display the outcomes of the most important clinical trials and real-world studies regarding its efficacy and safety for the management of the above retinal disorders.
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Affiliation(s)
- Yusuf Mushtaq
- Department of Ophthalmology, Queen’s Medical Centre, Nottingham University Hospitals NHS Trust & School of Medicine, University of Nottingham, Nottingham, UK
| | - Maryam M Mushtaq
- Department of Acute Medicine, Luton and Dunstable University Hospitals NHS Trust, Luton, UK
| | - Zisis Gatzioufas
- Department of Ophthalmology, Basel University Hospital & University of Basel School of Medicine, Basel, Switzerland
| | - Matteo Ripa
- Ophthalmology Unit, “Fondazione Policlinico Universitario A. Gemelli IRCCS”, Rome, Italy
| | - Lorenzo Motta
- Department of Ophthalmology, William Harvey Hospital, East Kent Hospitals University NHS Foundation Trust, Kent, UK
| | - Georgios D Panos
- Department of Ophthalmology, Queen’s Medical Centre, Nottingham University Hospitals NHS Trust & School of Medicine, University of Nottingham, Nottingham, UK
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6
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El Rayes EN, Leila M. Visual function and retinal morphological changes after single suprachoroidal delivery of fluocinolone acetonide (Iluvien®) implant in eyes with chronic diabetic macular edema. Int J Retina Vitreous 2023; 9:20. [PMID: 36991493 PMCID: PMC10053734 DOI: 10.1186/s40942-023-00458-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 03/21/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND To assess the efficacy and safety of supra-choroidal (SC) Iluvien in the management of chronic diabetic macular edema (DME). METHODS A retrospective interventional non-comparative consecutive case series including patients with chronic DME who received an SC Iluvien implant. All patients had persistent central macular thickness (CMT) ≥ 300µ after previous treatment with anti-vascular endothelial growth factor (VEGF) agents or laser photocoagulation. The main outcome measures were improvement of best-corrected visual acuity (BCVA), reduction of CMT, and detection of ocular hypertension/glaucoma or cataract formation. Friedman's two-way ANOVA was used to analyze BCVA, intraocular pressure (IOP), and DME across different time points. P-value = 0.05. RESULTS The study included 12 eyes of 12 patients. Six patients (50%) were males. The median age was 58 years (range 52-76 years). The median duration of DM was 13 years (range 8-20 years). Ten patients (83.3%) were phakic and 2 patients (17%) were pseudophakic. The median pre-operative BCVA was 0.07 (range 0.05-0.8). The median pre-operative CMT was 544µ (range 354-745µ). The median pre-operative IOP was 17 mmHg (range 14-21mmHg). The median follow-up period was 12 months, range (12-42). Post-operatively, the median final BCVA was 0.15 (range 0.03-1), p 0.02, the median CMT was 404µ (range 213-747), p 0.4 and the median IOP was 19.5 mmHg (range 15-22), p 1. Two out of 10 phakic patients (20%) developed nuclear sclerosis grade I by 12 months. Six patients (50%) developed a transient rise in IOP < 10 mmHg from the baseline that resolved within 3 weeks with antiglaucoma drops. CONCLUSION SC Iluvien is potentially effective in improving visual function, reducing macular edema, and reducing the incidence of steroid-induced cataracts and glaucoma.
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Affiliation(s)
- Ehab N El Rayes
- Retina department, Research Institute of Ophthalmology (RIO), 35 Salah Salem St., (El Borg), Suite 702, El-Obour bldg., Cairo, 11371, Egypt.
| | - Mahmoud Leila
- Retina department, Research Institute of Ophthalmology (RIO), 35 Salah Salem St., (El Borg), Suite 702, El-Obour bldg., Cairo, 11371, Egypt
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Battaglia LS, Dorati R, Maestrelli F, Conti B, Gabriele M, Di Cesare Mannelli L, Selmin F, Cosco D. Repurposing of parenterally administered active substances used to treat pain both systemically and locally. Drug Discov Today 2022; 27:103321. [PMID: 35850432 DOI: 10.1016/j.drudis.2022.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 06/24/2022] [Accepted: 07/12/2022] [Indexed: 12/15/2022]
Abstract
Pain is a constant in our lives. The efficacy of drug therapy administered by the parenteral route is often limited either by the physicochemical characteristics of the drug itself or its adsorption-distribution-metabolism-excretion (ADME) mechanisms. One promising alternative is the design of innovative drug delivery systems that can improve the pharmacokinetics |(PK) and/or reduce the toxicity of traditionally used drugs. In this review, we discuss several products that have been approved by the main regulatory agencies (i.e., nano- and microsystems, implants, and oil-based solutions), highlighting the newest technologies that govern both locally and systemically the delivery of drugs. Finally, we also discuss the risk assessment of the scale-up process required, given the impact that this approach could have on drug manufacturing. Teaser: The management of pain by way of the parenteral route can be improved using complex drug delivery systems (e.g., micro- and nanosystems) which require high-level assessment and shorten the regulatory pathway.
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Affiliation(s)
- Luigi S Battaglia
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - Rossella Dorati
- Department of Drug Science, University of Pavia, Pavia, Italy
| | | | - Bice Conti
- Department of Drug Science, University of Pavia, Pavia, Italy
| | - Mirko Gabriele
- Patheon Italia SPA, Thermo Fisher Scientific, Ferentino, Italy; President Elect, PDA Italy Chapter
| | - Lorenzo Di Cesare Mannelli
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Section of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Francesca Selmin
- Department of Pharmaceutical Science, University of Milan, Milan, Italy.
| | - Donato Cosco
- Department of Health Sciences, Magna Græcia University of Catanzaro, Catanzaro, Italy
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8
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Farhat W, Yeung V, Ross A, Kahale F, Boychev N, Kuang L, Chen L, Ciolino JB. Advances in biomaterials for the treatment of retinoblastoma. Biomater Sci 2022; 10:5391-5429. [PMID: 35959730 DOI: 10.1039/d2bm01005d] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Retinoblastoma is the most common primary intraocular malignancy in children. Although traditional chemotherapy has shown some success in retinoblastoma management, there are several shortcomings to this approach, including inadequate pharmacokinetic parameters, multidrug resistance, low therapeutic efficiency, nonspecific targeting, and the need for adjuvant therapy, among others. The revolutionary developments in biomaterials for drug delivery have enabled breakthroughs in cancer management. Today, biomaterials are playing a crucial role in developing more efficacious retinoblastoma treatments. The key goal in the evolution of drug delivery biomaterials for retinoblastoma therapy is to resolve delivery-associated obstacles and lower nonlocal exposure while ameliorating certain adverse effects. In this review, we will first delve into the historical perspective of retinoblastoma with a focus on the classical treatments currently used in clinics to enhance patients' quality of life and survival rate. As we move along, we will discuss biomaterials for drug delivery applications. Various aspects of biomaterials for drug delivery will be dissected, including their features and recent advances. In accordance with the current advances in biomaterials, we will deliver a synopsis on the novel chemotherapeutic drug delivery strategies and evaluate these approaches to gain new insights into retinoblastoma treatment.
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Affiliation(s)
- Wissam Farhat
- Department of Ophthalmology, Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA.
| | - Vincent Yeung
- Department of Ophthalmology, Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA.
| | - Amy Ross
- Department of Ophthalmology, Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA.
| | - Francesca Kahale
- Department of Ophthalmology, Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA.
| | - Nikolay Boychev
- Department of Ophthalmology, Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA.
| | - Liangju Kuang
- Department of Ophthalmology, Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA.
| | - Lin Chen
- Department of Ophthalmology, Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA. .,Department of Ophthalmology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China.,Department of Optometry and Visual Science, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Joseph B Ciolino
- Department of Ophthalmology, Schepens Eye Research Institute of Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA.
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9
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Sadeghi A, Ruponen M, Puranen J, Cao S, Ridolfo R, Tavakoli S, Toropainen E, Lajunen T, Ranta VP, van Hest J, Urtti A. Imaging, quantitation and kinetic modelling of intravitreal nanomaterials. Int J Pharm 2022; 621:121800. [DOI: 10.1016/j.ijpharm.2022.121800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/15/2022] [Accepted: 04/30/2022] [Indexed: 12/01/2022]
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10
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McGregor F, Dick AD, Burke T. Achieving Quiescence with Fluocinolone Implants. Case Rep Ophthalmol 2021; 12:356-362. [PMID: 34054484 PMCID: PMC8136321 DOI: 10.1159/000513221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 11/19/2020] [Indexed: 11/19/2022] Open
Abstract
Persistent anterior uveitis causing cystoid macular oedema may necessitate either intraocular or systemic immunosuppression. This case report highlights how a newly licenced treatment, fluocinolone acetonide (Iluvien<sup>®</sup>, Alimera Sciences Ltd., England, UK) achieves quiescence in refractory and steroid-dependent disease and in the presence of an acute relapse.
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Affiliation(s)
| | | | - Tomas Burke
- Bristol Eye Hospital, Bristol, United Kingdom
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11
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Pacella F, Pacella E, Trovato Battagliola E, Malvasi M, Scalinci SZ, Turchetti P, Salducci M, Lucchino L, Arrico L. Efficacy and safety of intravitreal Fluocinolone Acetonide microimplant (ILUVIEN ®) in patients with chronic diabetic macular edema: 1 year follow-up. Eur J Ophthalmol 2021; 32:11206721211020203. [PMID: 34030511 DOI: 10.1177/11206721211020203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE Evaluate the efficacy and safety of intravitreal 0.19 mg fluocinolone acetonide (FAc) micro implant in patients with chronic diabetic macular edema (cDME). METHODS Prospective study recruiting subjects with cDME. Inclusion criteria: cDME for at least 2 years documented with OCT imaging; pseudophakia; previous treatments with laser photocoagulation and intravitreal injections of anti-VEGF and/or dexamethasone. Exclusion criteria: phakia; ocular hypertension; tractional component visible on OCT; glaucoma; previous vitrectomy. Outcome measures included best-corrected visual acuity (BVCA), intraocular pressure (IOP), and central macular thickness (CMT), measured 1, 3, 6, and 12 months post-injection. Data were compared with the Friedman test and significance was set at p < 0.05. RESULTS A total of 18 eyes with a median duration of cDME of 45 months (25-118 months). The 77% of subjects either maintained or improved their BVCA. About 17% and 33% of subjects showed an improvement of 15 ETDRS letters or more at 3 and 12 months respectively. The 17% and 28% of subjects showed a CMT <250 microns at 3 and 12 months, respectively. The median change in CMT thickness was of -370 and -373.5 microns at 3 and 12 months post-injection respectively (p-value is 0.025). Changes in median IOP at 3 and 12 months post-injection were not statistically significant (p-value is 0.210). Ocular hypertension (OHT) was detected in two eyes (11%). CONCLUSION The FAc micro implant has proved efficacy in improving and/or maintaining BVCA in 77% of patients with cDME up to 12 months post-injection. Ocular hypertension is the most common side effect but responds well to topical therapy.
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Affiliation(s)
- Fernanda Pacella
- Department of Sense Organs, La Sapienza University of Rome, Rome, Italy
| | - Elena Pacella
- Department of Sense Organs, La Sapienza University of Rome, Rome, Italy
| | | | | | | | - Paolo Turchetti
- National Institute for Health, Migration and Poverty (INMP/NIHMP), Rome, Italy
| | - Mauro Salducci
- Department of Sense Organs, La Sapienza University of Rome, Rome, Italy
| | - Luca Lucchino
- Department of Sense Organs, La Sapienza University of Rome, Rome, Italy
| | - Loredana Arrico
- Department of Sense Organs, La Sapienza University of Rome, Rome, Italy
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12
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Off-Label Use of 0.19 mg Fluocinolone Acetonide Intravitreal Implant: A Systematic Review. J Ophthalmol 2021; 2021:6678364. [PMID: 34055398 PMCID: PMC8149232 DOI: 10.1155/2021/6678364] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 05/07/2021] [Indexed: 11/18/2022] Open
Abstract
Corticosteroids are used in a variety of ophthalmological diseases. One challenge faced by ophthalmologists is to deliver corticosteroids to the posterior segment of the eye with efficacy and safety. Sustained-release corticosteroid implants may be the answer to this problem. The 0.19 mg fluocinolone acetonide (FAc) implant (Iluvien®) releases FAc for 36 months, and it is approved for the treatment of diabetic macular edema (DME) and noninfectious uveitis. We decided to do a systematic review to acknowledge in which other diseases FAc implant is being used off-label. A literature search was performed in the following three electronic databases: PubMed, Scopus, and Web of Science (from January 1st, 2000, to September 20th, 2020), using the following query: (“Fluocinolone Acetonide” OR Iluvien®) AND (“eye” OR “ocular” OR “intravitreal).” A total of 11 papers were included, and the use of FAc implant was analyzed in the following diseases: radiation-induced maculopathy (RM); paraneoplastic visual syndromes (melanoma-associated retinopathy (MAR) and cancer-associated retinopathy (CAR)); Sjogren's syndrome-related keratopathy; retinal vein occlusion (RVO); cystoid macular edema (CME); diabetic retinal neurodegeneration (DRN); and retinitis pigmentosa (RP). FAc implant may be a potential treatment for these diseases; however, the level of scientific evidence of the included studies in this review is limited. Further studies with larger cohorts and longer follow-ups are needed to validate this data.
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13
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Kodjikian L, Baillif S, Creuzot-Garcher C, Delyfer MN, Matonti F, Weber M, Mathis T. Real-World Efficacy and Safety of Fluocinolone Acetonide Implant for Diabetic Macular Edema: A Systematic Review. Pharmaceutics 2021; 13:pharmaceutics13010072. [PMID: 33430389 PMCID: PMC7827527 DOI: 10.3390/pharmaceutics13010072] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/24/2020] [Accepted: 01/04/2021] [Indexed: 12/18/2022] Open
Abstract
To assess real-world outcomes of fluocinolone acetonide (FAc) implant in treating diabetic macular edema (DME), a systematic literature review was conducted on PubMed in order to identify publications assessing the efficacy and safety of the FAc implant in DME in daily practice. Case reports and randomized controlled trials were excluded. Twenty-two observational real-world studies analyzing a total of 1880 eyes were included. Mean peak visual gain was +8.7 letters (11.3 months post-FAc injection) and was greater for lower baseline best corrected visual acuity (BCVA) and for more recent DME. Mean central retinal thickness (CRT) decreased 34.3% from baseline. 77.0% of the analyzed studies reported both BCVA improvement of at least five letters and a CRT decrease by 20% or more. Rescue therapy was needed more frequently when FAc was administered for chronic DME. FAc-induced ocular hypertension was reported in 20.1% of patients but only 0.6% needed surgery. Cataract extraction was performed in 43.2% of phakic patients. Adequate patient selection is essential for optimal FAc response and better safety profile. Currently positioned as second- or third-line treatment in the management algorithm, FAc implant decreases treatment burden and provides better letter gain when administered for more recent DME.
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Affiliation(s)
- Laurent Kodjikian
- Department of Ophthalmology, Croix-Rousse University Hospital, Hospices Civils de Lyon, University of Lyon 1, 69004 Lyon, France;
- CNRS-UMR 5510 Mateis, University of Lyon 1, 69100 Villeurbane, France
- Correspondence: ; Tel.: +33-(0)4-26-10-94-31
| | - Stephanie Baillif
- Department of Ophthalmology, Pasteur 2 University Hospital, 06000 Nice, France;
| | - Catherine Creuzot-Garcher
- Department of Ophthalmology, Dijon-Bourgogne University Hospital, 21000 Dijon, France;
- Eye and Nutrition Research Group, CSGA, UMR1324 INRA, 6265 CNRS, Burgundy, 21000 Dijon, France
| | - Marie-Noëlle Delyfer
- Department of Ophthalmology, Bordeaux 2 University Hospital, 33000 Bordeaux, France;
- Bordeaux Population Health Research Center, Team LEHA, 33000 Bordeaux, France
| | - Frédéric Matonti
- Monticelli Paradis Center, 13000 Marseille, France;
- Institut de Neurosciences de la Timone-UMR 7289, University of Aix-Marseille, 13000 Marseille, France
| | - Michel Weber
- Department of Ophthalmology, Nantes University Hospital, 44000 Nantes, France;
- Clinical Investigation Centre CIC1413, INSERM and Nantes University Hospital, 44000 Nantes, France
| | - Thibaud Mathis
- Department of Ophthalmology, Croix-Rousse University Hospital, Hospices Civils de Lyon, University of Lyon 1, 69004 Lyon, France;
- CNRS-UMR 5510 Mateis, University of Lyon 1, 69100 Villeurbane, France
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Alzaabi M, Taguri AH, Elbarky A. Anterior migration of intravitreal fluocinolone acetonide (Iluvien®) implant in a pseudophakic eye with intact posterior capsule. Am J Ophthalmol Case Rep 2020; 20:100922. [PMID: 32995665 PMCID: PMC7501052 DOI: 10.1016/j.ajoc.2020.100922] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 08/28/2020] [Accepted: 09/02/2020] [Indexed: 12/03/2022] Open
Abstract
Purpose To describe a case of spontaneous anterior migration of intravitreal fluocinolone acetonide (Iluvien®) implant in a pseudophakic eye with intact posterior capsule. Observation A 60-year old woman with proliferative diabetic retinopathy underwent uneventful pars plana vitrectomy and phacoemulsification with posterior chamber intraocular lens (PCIOL) implants in both eyes. She developed diabetic macular edema (DME) in her right eye which failed to respond to repeated intravitreal injections of Aflibercept 2mg/0.05ml (Eylea®). The patient received an intravitreal Iluvien® implant to treat the recalcitrant DME after she showed a favorable temporary response to dexamethasone intravitreal implant (Ozurdex™).Six months later she presented with pain in the right eye due to elevated intraocular pressure (IOP). The Iluvien® implant was found to be dislodged into the anterior chamber (AC) in the presence of an intact posterior capsule and stable PCIOL implant. The migrated Iluvien implant was removed and IOP was controlled with a glaucoma drainage valve as it failed to respond to maximum anti-glaucoma medication. Conclusions and Importance Intravitreal Iluvien® implant could migrate into the AC in a previously vitrectomized eyes in the presence of an intact posterior capsule.
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Affiliation(s)
- Manal Alzaabi
- Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
- Corresponding author.
| | | | - Ahmed Elbarky
- Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
- Assistant Professor of Ophthalmology in Benha Faculty of Medicine, Egypt
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Estebainha R, Goldhardt R, Falcão M. A New Approach for Diabetic Macular Edema Treatment: review of clinical practice results with 0.19 mg fluocinolone acetonide intravitreal implant including vitrectomized eyes. CURRENT OPHTHALMOLOGY REPORTS 2020; 8:1-10. [PMID: 32346496 PMCID: PMC7188023 DOI: 10.1007/s40135-020-00225-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE OF REVIEW Fluocinolone acetonide is a synthetic fluorinated glucocorticoid. It has selective and potent agonist properties by binding to the cytosolic glucocorticoid receptor with high affinity; it is devoid of mineralocorticoid activity. Two extended-release (i.e. lasting up to 3 years) drug delivery systems containing fluocinolone acetonide (FAc) have been approved by the FDA for intravitreal use: Retisert ® (Bausch&Lomb, New Jersey, USA) and Iluvien ® (Alimera Sciences, Atlanta, USA). The former contains 0.59 mg of FAc, which is approved for the treatment of chronic noninfectious posterior segment uveitis. The latter contains a dose of 0.19 mg of FAc and is approved for the treatment of diabetic macular edema and here we review the results published in the clinical literature relating to its use in the treatment of diabetic macular edema (DME). RECENT FINDINGS The 0.19 mg FAc implant (Iluvien®) is a new approved treatment approach for DME. It is a non-biodegradable implant that continuously releases a microdose of FAc into the vitreous cavity for up to three years. It is effective in chronic DME with the added value of decreasing the treatment burden of multiple intravitreal injections. Recently, clinical practice studies are reporting its efficacy and safety profile (intra-ocular pressure rise and cataract), as well as its use in clinical setting not included in clinical trial such as vitrectomized eyes. SUMMARY The FAc implant has demonstrated in clinical practice results that mirror the results of the clinical trials efficacy wise. Regarding its safety profile, cataract is a common complication, however, intra-ocular pressure rises may be lower than the ones reported in trials. The implant has shown effectiveness in vitrectomized eyes. An increasing evidence of real-world studies have supported utility of the implant in DME patients. It's extended-release format for up to 3 years benefits to the patient and carer as it means fewer injections and visits to the clinic.
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Affiliation(s)
| | - Raquel Goldhardt
- Miami Veterans Administration Medical Center, 1201 NW 16th St, Miami, FL 33125
- Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami, 900 NW 17th Street, Miami, FL, 33136
| | - Manuel Falcão
- Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Portugal
- Ophthalmology Department of Centro Hospitalar São João, Porto, Portugal
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16
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Cicinelli MV, Cavalleri M, Lattanzio R, Bandello F. The current role of steroids in diabetic macular edema. EXPERT REVIEW OF OPHTHALMOLOGY 2020. [DOI: 10.1080/17469899.2020.1729743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Maria Vittoria Cicinelli
- Department of Ophthalmology, Scientific Institute San Raffaele, Vita-Salute University, Milan, Italy
| | - Michele Cavalleri
- Department of Ophthalmology, Scientific Institute San Raffaele, Vita-Salute University, Milan, Italy
| | - Rosangela Lattanzio
- Department of Ophthalmology, Scientific Institute San Raffaele, Vita-Salute University, Milan, Italy
| | - Francesco Bandello
- Department of Ophthalmology, Scientific Institute San Raffaele, Vita-Salute University, Milan, Italy
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17
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Cooper RC, Yang H. Hydrogel-based ocular drug delivery systems: Emerging fabrication strategies, applications, and bench-to-bedside manufacturing considerations. J Control Release 2019; 306:29-39. [PMID: 31128143 PMCID: PMC6629478 DOI: 10.1016/j.jconrel.2019.05.034] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/19/2019] [Accepted: 05/21/2019] [Indexed: 12/14/2022]
Abstract
The physiological barriers of the eye pose challenges to the delivery of the array of therapeutics for ocular diseases. Hydrogels have been widely explored for medical applications and introduce possible solutions to overcoming the medication challenges of the ocular environment. While the innovations in drug encapsulation and release mechanisms, biocompatibility, and treatment duration have become highly sophisticated, the challenge of widespread application of hydrogel formulations in the clinic is still apparent. This article reviews the latest hydrogel formulations and their associated chemistries for use in ocular therapies, spanning from external anterior to internal posterior regions of the eye in order to evaluate the state of recent research. This article discusses the utility of hydrogels in soft contact lens, wound dressings, intraocular lens, vitreous substitutes, vitreous drug release hydrogels, and cell-based therapies for regeneration. Additional focus is placed on the pre-formulation, formulation, and manufacturing considerations of the hydrogels based on individual components (polymer chains, linkers, and therapeutics), final hydrogel product, and required preparations for clinical/commercial applications, respectively.
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Affiliation(s)
- Remy C Cooper
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Hu Yang
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA, USA; Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA, USA; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, USA.
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19
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Pons-Faudoa FP, Ballerini A, Sakamoto J, Grattoni A. Advanced implantable drug delivery technologies: transforming the clinical landscape of therapeutics for chronic diseases. Biomed Microdevices 2019; 21:47. [PMID: 31104136 PMCID: PMC7161312 DOI: 10.1007/s10544-019-0389-6] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Chronic diseases account for the majority of all deaths worldwide, and their prevalence is expected to escalate in the next 10 years. Because chronic disorders require long-term therapy, the healthcare system must address the needs of an increasing number of patients. The use of new drug administration routes, specifically implantable drug delivery devices, has the potential to reduce treatment-monitoring clinical visits and follow-ups with healthcare providers. Also, implantable drug delivery devices can be designed to maintain drug concentrations in the therapeutic window to achieve controlled, continuous release of therapeutics over extended periods, eliminating the risk of patient non-compliance to oral treatment. A higher local drug concentration can be achieved if the device is implanted in the affected tissue, reducing systemic adverse side effects and decreasing the challenges and discomfort of parenteral treatment. Although implantable drug delivery devices have existed for some time, interest in their therapeutic potential is growing, with a global market expected to reach over $12 billion USD by 2018. This review discusses implantable drug delivery technologies in an advanced stage of development or in clinical use and focuses on the state-of-the-art of reservoir-based implants including pumps, electromechanical systems, and polymers, sites of implantation and side effects, and deployment in developing countries.
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Affiliation(s)
- Fernanda P Pons-Faudoa
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX, 77030, USA
- School of Medicine and Health Sciences, Tecnologico de Monterrey, Avenida Eugenio Garza Sada 2501, 64849, Monterrey, NL, Mexico
| | - Andrea Ballerini
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX, 77030, USA
- Department of Oncology and Onco-Hematology, University of Milan, Via Festa del Perdono 7, 20122, Milan, Italy
| | - Jason Sakamoto
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX, 77030, USA
| | - Alessandro Grattoni
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX, 77030, USA.
- Department of Surgery, Houston Methodist Hospital, 6550 Fannin Street, Houston, TX, 77030, USA.
- Department of Radiation Oncology, Houston Methodist Hospital, 6550 Fannin Street, Houston, TX, 77030, USA.
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Massa H, Nagar AM, Vergados A, Dadoukis P, Patra S, Panos GD. Intravitreal fluocinolone acetonide implant (ILUVIEN®) for diabetic macular oedema: a literature review. J Int Med Res 2018; 47:31-43. [PMID: 30556449 PMCID: PMC6384476 DOI: 10.1177/0300060518816884] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Diabetic macular oedema (DMO) is a common complication of diabetic retinopathy and may lead to severe visual loss. In this review, we describe the pathophysiology of DMO and review current therapeutic options such as macular laser photocoagulation, anti-vascular endothelial growth factor agents, and steroid implants with a focus on the new fluocinolone acetonide implant, ILUVIEN®. The results of the Fluocinolone Acetonide in Diabetic Macular Edema (FAME) studies are also presented together with the results of real-world studies to support the clinical use of ILUVIEN® in achieving efficient resolution of DMO and improving vision and macular anatomy in this challenging group of patients.
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Affiliation(s)
- Horace Massa
- 1 Department of Ophthalmology, Geneva University Hospitals, Geneva, Switzerland.,*These authors contributed equally to this work
| | - Anindyt M Nagar
- 2 Eye Treatment Centre, Whipps Cross University Hospital, Barts Health NHS Trust, London, UK.,*These authors contributed equally to this work
| | - Athanasios Vergados
- 2 Eye Treatment Centre, Whipps Cross University Hospital, Barts Health NHS Trust, London, UK
| | - Panagiotis Dadoukis
- 2 Eye Treatment Centre, Whipps Cross University Hospital, Barts Health NHS Trust, London, UK
| | - Sudeshna Patra
- 2 Eye Treatment Centre, Whipps Cross University Hospital, Barts Health NHS Trust, London, UK
| | - Georgios D Panos
- 2 Eye Treatment Centre, Whipps Cross University Hospital, Barts Health NHS Trust, London, UK
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Affiliation(s)
- Georgios D Panos
- Eye Treatment Centre, 156708Whipps Cross University Hospital, Barts Health NHS Trust, London, UK
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ILM peeling in nontractional diabetic macular edema: review and metanalysis. Int Ophthalmol 2017; 38:2709-2714. [PMID: 29090356 DOI: 10.1007/s10792-017-0761-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 10/23/2017] [Indexed: 01/30/2023]
Abstract
PURPOSE To evaluate the effect of internal limiting membrane (ILM) peeling during vitrectomy for nontractional diabetic macular edema. METHODS PUBMED, MEDLINE and CENTRAL were reviewed using the following terms (or combination of terms): diabetic macular edema, nontractional diabetic macular edema, internal limiting membrane peeling, vitrectomy, Müller cells. Randomized and nonrandomized studies were included. The eligible studies compared anatomical and functional outcomes of vitrectomy with or without ILM peeling for tractional and nontractional diabetic macular edema. Postoperative best-corrected visual acuity and central macular thickness were considered, respectively, the primary and secondary outcomes. Meta-analysis on mean differences between vitrectomy with and without ILM peeling was performed using inverse variance method in random effects. RESULTS Four studies with 672 patients were eligible for analysis. No significant difference was found between postoperative best-corrected visual acuity or best-corrected visual acuity change of ILM peeling group compared with nonpeeling group. There was no significant difference in postoperative central macular thickness and central macular thickness reduction between the two groups. CONCLUSIONS The visual acuity outcomes in patients affected by nontractional diabetic macular edema using pars plana vitrectomy with ILM peeling versus no ILM peeling were not significantly different. A larger prospective and randomized study would be necessary.
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