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Huang L, Flaxel C, Suhler E, Lin P. Two Cases of Chronic Central Serous Chorioretinopathy Successfully Treated with Systemic Interferon Alpha. Ocul Immunol Inflamm 2024; 32:1465-1474. [PMID: 37450492 PMCID: PMC10787811 DOI: 10.1080/09273948.2023.2226206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/03/2023] [Accepted: 06/12/2023] [Indexed: 07/18/2023]
Abstract
Chronic central serous chorioretinopathy (CSCR) is a sight threatening disease that can lead to legal blindness. Verteporfin photodynamic therapy is the main treatment for chronic CSCR, however, there has been a critical worldwide shortage of verteporfin. Other medical treatments have been attempted with variable efficacy. Interferons have shown efficacy in treating uveitis and associated macular edema. We report 2 cases of treatment refractory chronic CSCR successfully treated with subcutaneous injection of interferon alpha with significant anatomical and functional improvement. To our knowledge, this is the first report observing the therapeutic potential of systemic interferon alpha in the treatment of chronic CSCR. A large randomized controlled clinical trial would help to better evaluate the safety and efficacy of systemic PEG-IFNα2a in treating chronic CSCR, and further define the optimal dose, treatment interval and duration.
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Affiliation(s)
- Lingling Huang
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
| | - Christina Flaxel
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
| | - Eric Suhler
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
- Veterans Affairs Portland Health Care System, Portland, OR, USA
| | - Phoebe Lin
- Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
- Cole Eye Institute, Cleveland Clinic, Cleveland, OH, USA
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Chauhan K, Tyagi M. Update on non-infectious uveitis treatment: anti-TNF-alpha and beyond. FRONTIERS IN OPHTHALMOLOGY 2024; 4:1412930. [PMID: 39157460 PMCID: PMC11327136 DOI: 10.3389/fopht.2024.1412930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Accepted: 07/16/2024] [Indexed: 08/20/2024]
Abstract
Non-infectious uveitis (NIU) encompasses a range of conditions marked by inflammation within various layers of the eye. NIU is a significant contributor to irreversible vision loss among the working-age population in developed countries. The aim of treating uveitis is to manage inflammation, prevent its recurrences and to restore or salvage vision. Presently, the standard treatment protocol for NIU involves initiating corticosteroids as the primary therapeutic agents, although more aggressive approaches and steroid sparing agent may be necessary in certain cases. These advanced treatments option include synthetic immunosuppressants like antimetabolites, calcineurin inhibitors and alkylating agents. For patients who exhibit an intolerance or resistance to corticosteroids and conventional immunosuppressive therapies, biologic agents have emerged as a promising alternative. Notably, among the biologic treatments evaluated, TNF-α inhibitors, anti-CD20 therapy and alkylating agents have shown considerable efficacy. In this review, we delve into the latest evidence surrounding the effectiveness of biologic therapy and introduce novel therapeutic strategies targeting immune components as potential avenues for advancing treatment of NIU.
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Affiliation(s)
- Khushboo Chauhan
- Saroja A Rao Centre for Uveitis, L V Prasad Eye Institute, Hyderabad, India
- Smt. Kanuri Santhamma Centre for Vitreo-Retinal Diseases, L V Prasad Eye Institute, Hyderabad, India
| | - Mudit Tyagi
- Saroja A Rao Centre for Uveitis, L V Prasad Eye Institute, Hyderabad, India
- Smt. Kanuri Santhamma Centre for Vitreo-Retinal Diseases, L V Prasad Eye Institute, Hyderabad, India
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Green MB, Butler NJ. Topical and Subcutaneous Interferon-Alpha for the Treatment of Refractory Inflammatory Macular Edema. Ocul Immunol Inflamm 2024:1-7. [PMID: 39012757 DOI: 10.1080/09273948.2024.2374439] [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: 07/13/2023] [Accepted: 06/25/2024] [Indexed: 07/18/2024]
Abstract
PURPOSE To evaluate the efficacy of topical interferon alpha-2b (tIFN a2b) and subcutaneous pegylated interferon alpha-2a (peg-IFN a2a) in the treatment of refractory pseudophakic (PME) and uveitic (UME) macular edema. METHODS Retrospective case series of patients with PME or UME that was non-responsive to conventional therapies. Topical IFN a2b drops (1 MIU/ml) were commenced four times a day. Non-responders were offered treatment with subcutaneous peg-IFN a2a starting at 180 mcg weekly. RESULTS Seven eyes of seven patients (three UME and four PME) were treated with tIFN a2b. Three eyes had complete ME resolution with tIFN treatment after a mean of 2.66 weeks (range 1-4 weeks) and no recurrence after a mean total course of 11.33 weeks (range 5-20 weeks). Two cases (both PME) had partial responses to tIFN treatment and two cases (both UME) failed to respond. Of the four eyes that incompletely responded to tIFN (treatment range 6 weeks to 4 months), three were treated with peg-IFN a2a, which invariably led to complete and sustained ME resolution. Adverse effects from topical treatment were mild and consisted mainly of superficial irritation. Adverse effects of subcutaneous treatment included nausea, vomiting, anorexia, and leukopenia, though none limited treatment. CONCLUSIONS Topical IFNa-2b appears safe and effective in isolation or in conjunction with topical steroids for the treatment of inflammatory macular edema (IME) in about half of patients in our small series. All partial and non-responders had complete disease resolution with systemic IFN. Topical IFN a2b should be considered in patients with refractory IME.
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Affiliation(s)
- Michael B Green
- Department of Ophthalmology, Boston Medical Center, Boston, Massachusetts, USA
- Department of Ophthalmology, VA Boston Health Care System Jamaica Plain Campus, Boston, Massachusetts, USA
| | - Nicholas J Butler
- Department of Ophthalmology, Boston Medical Center, Boston, Massachusetts, USA
- Department of Ophthalmology, VA Boston Health Care System Jamaica Plain Campus, Boston, Massachusetts, USA
- Department of Ophthalmology, Massachusetts Eye and Ear, Boston, Massachusetts, USA
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De Simone L, Gentile P, Aldigeri R, Mastrofilippo V, Bolletta E, Gozzi F, Adani C, Salvarani C, Cimino L. Effectiveness of Pegylated Interferon Alpha-2a in Post-Uveitic Macular Edema Previously Responding to Non-Pegylated Interferon. Ocul Immunol Inflamm 2024; 32:678-682. [PMID: 37093910 DOI: 10.1080/09273948.2023.2195494] [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: 09/20/2022] [Accepted: 03/21/2023] [Indexed: 04/25/2023]
Abstract
PURPOSE To evaluate the efficacy of pegylated interferon (PEG-IFN) alpha-2a to treat post-uveitic relapsing macular edema (ME) after withdrawal of non-PEG IFN alpha-2a or 2b to maintain treatment efficacy. METHODS This retrospective study investigated subjects with post-uveitic ME who received weekly subcutaneous PEG-IFN alpha-2a injections. Comparisons between baseline central macular thickness (CMT) and best-corrected visual acuity (BCVA) and those at all follow-up visits were made. RESULTS Six patients (nine eyes) were treated and followed up for six months. CMT (mean [standard deviation]) decreased from 375[117] to 283[39] μm after one month (p < 0.001), remaining significantly lower up to the final follow-up visit at six months (275[38] μm, p = 0.008), and BCVA (0.21[0.16] logMAR at baseline) showed an improvement of 0.12[0.11] logMAR (p = 0.026) at six months. Neither recurrences nor any serious adverse events were recorded. CONCLUSIONS Post-uveitic ME patients were effectively and safely treated with PEG-IFN alpha-2a.
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Affiliation(s)
- L De Simone
- Ocular Immunology Unit, Azienda USL-IRCCS of Reggio Emilia, Reggio Emilia, Italy
| | - P Gentile
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - R Aldigeri
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - V Mastrofilippo
- Ocular Immunology Unit, Azienda USL-IRCCS of Reggio Emilia, Reggio Emilia, Italy
| | - E Bolletta
- Ocular Immunology Unit, Azienda USL-IRCCS of Reggio Emilia, Reggio Emilia, Italy
| | - F Gozzi
- Ocular Immunology Unit, Azienda USL-IRCCS of Reggio Emilia, Reggio Emilia, Italy
| | - C Adani
- Ocular Immunology Unit, Azienda USL-IRCCS of Reggio Emilia, Reggio Emilia, Italy
| | - C Salvarani
- Department of Surgery, Medicine, Dentistry and Morphological Sciences, with Interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
- Division of Rheumatology, Azienda USL-IRCCS of Reggio Emilia, Reggio Emilia, Italy
| | - L Cimino
- Ocular Immunology Unit, Azienda USL-IRCCS of Reggio Emilia, Reggio Emilia, Italy
- Department of Surgery, Medicine, Dentistry and Morphological Sciences, with Interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
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Afarid M, Azimi A, Meshksar A, Sanie-Jahromi F. Interferons in vitreoretinal diseases; a review on their clinical application, and mechanism of action. Int Ophthalmol 2024; 44:223. [PMID: 38727788 DOI: 10.1007/s10792-024-03144-3] [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: 03/01/2023] [Accepted: 04/11/2024] [Indexed: 07/12/2024]
Abstract
PURPOSE This review investigates the therapeutic benefits of interferons (IFNs) in vitreoretinal diseases, focusing on their regulatory roles in innate immunological reactions and angiogenesis. The study aims to categorize the clinical outcomes of IFN applications and proposes a molecular mechanism underlying their action. METHODS A systematic review was conducted using MEDLINE/PubMed, Web of Science, EMBASE, and Google Scholar databases to identify randomized clinical trials, case series, and case-control studies related to IFNs' impact on vitreoretinal diseases (1990-2022). The data synthesis involved an in-depth analysis of the anti-inflammatory and anti-angiogenesis effects of IFNs across various studies. RESULTS Our findings indicate that IFNs exhibit efficacy in treating inflammation-associated vitreoretinal disorders. However, a lack of sufficient evidence exists regarding the suitability of IFNs in angiogenesis-associated vitreoretinal diseases like choroidal neovascularization and diabetic retinopathies. The synthesis of data suggests that IFNs may not be optimal for managing advanced stages of angiogenesis-associated disorders. CONCLUSION While IFNs emerge as promising therapeutic candidates for inflammation-related vitreoretinal diseases, caution is warranted in their application for angiogenesis-associated disorders, especially in advanced stages. Further research is needed to elucidate the nuanced molecular pathways of IFN action, guiding their targeted use in specific vitreoretinal conditions.
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Affiliation(s)
- Mehrdad Afarid
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Zand Boulevard, Poostchi Street, Shiraz, Iran
| | - Ali Azimi
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Zand Boulevard, Poostchi Street, Shiraz, Iran
| | - Aidin Meshksar
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Zand Boulevard, Poostchi Street, Shiraz, Iran
| | - Fatemeh Sanie-Jahromi
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Zand Boulevard, Poostchi Street, Shiraz, Iran.
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Heiligenhaus A, Bertram B, Baquet-Walscheid K, Becker M, Deuter C, Ness T, Ostrowski A, Pleyer U. [Non-infectious anterior uveitis : S1 guideline of the German Society of Ophthalmology (DOG) and the German Professional Association of Ophthalmologists (BVA). Version: 13.12.2023]. DIE OPHTHALMOLOGIE 2024:10.1007/s00347-024-02007-7. [PMID: 38438812 DOI: 10.1007/s00347-024-02007-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/02/2024] [Indexed: 03/06/2024]
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Xue YQ, Xiao JA, Chen Y. Frequency and Treatment Regimens of Macular Edema in 1946 Consecutive Patients with Noninfectious Uveitis at a Tertiary Ophthalmic Center in Shaanxi, China. Ophthalmol Ther 2023; 12:2609-2619. [PMID: 37440091 PMCID: PMC10441883 DOI: 10.1007/s40123-023-00763-4] [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: 04/19/2023] [Accepted: 06/22/2023] [Indexed: 07/14/2023] Open
Abstract
INTRODUCTION We investigated the frequency of uveitic macular edema (UME) in patients with different types of noninfectious uveitis and present the primary treatment methods for UME at a specialized eye center in Shaanxi Province, China. METHODS We conducted a retrospective, noninterventional, observational survey involving 1946 patients with noninfectious uveitis (2816 eyes). The collected data included sex, age of uveitis onset, age of UME onset, anatomical classification of uveitis, and the treatment administered to UME patients. RESULTS Of the 1946 patients with noninfectious uveitis, 929 (47.74%) were male and 1017 (52.26%) were female. The average age of all participants in the study was 42.19 ± 15.34 years, with average age at uveitis onset of 39.50 ± 15.52 years. Among the patients, 1003 (51.54%), 239 (12.28%), 410 (21.07%), and 294 (15.11%) had anterior uveitis, intermediate uveitis, posterior uveitis, and panuveitis, respectively. UME was observed in 134 (6.89%) of the uveitis patients. The average age of UME patients was 47.33 ± 17.17 years, with average age at uveitis onset of 45.78 ± 17.20 years. Out of the 134 UME patients, 3 (0.30%), 15 (6.28%), 47 (11.46%), and 69 (23.47%) had anterior uveitis, intermediate uveitis, posterior uveitis, and panuveitis, respectively. Among them, 37 were lost to follow-up, 44 received adalimumab (ADA) combined with low-dose prednisone and with or without conventional immunosuppressants, 19 received interferon-α2a therapy, 14 received intravitreal corticosteroid injections (such as dexamethasone implant or fluocinolone acetonide), 11 received low-dose corticosteroids combined with conventional immunosuppressants, 5 received only oral prednisone, and 4 received repeated peribulbar or subconjunctival injections of triamcinolone acetonide. CONCLUSIONS At our tertiary ophthalmic center in Shaanxi Province, China, only 6.89% of patients with noninfectious uveitis were diagnosed with UME. The primary treatment modality for UME in our center is ADA, in accordance with treatment guidelines and the Chinese medical insurance reimbursement system.
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Affiliation(s)
- Yan-Qi Xue
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated People's Hospital of Northwest University, No 21, Jiefang Road, Xi'an, 710004, Shaanxi, China
| | - Jin-An Xiao
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated People's Hospital of Northwest University, No 21, Jiefang Road, Xi'an, 710004, Shaanxi, China
| | - Ying Chen
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated People's Hospital of Northwest University, No 21, Jiefang Road, Xi'an, 710004, Shaanxi, China.
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Driban M, Kedia N, Arora S, Chhablani J. Novel pharmaceuticals for the management of retinal vein occlusion and linked disorders. Expert Rev Clin Pharmacol 2023; 16:1125-1139. [PMID: 37933706 DOI: 10.1080/17512433.2023.2277882] [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: 08/09/2023] [Accepted: 10/27/2023] [Indexed: 11/08/2023]
Abstract
INTRODUCTION Retinal vein occlusion (RVO) is the second leading cause of blindness from retinal vascular disease behind diabetic retinopathy. Anti-vascular endothelial growth factor (VEGF) and glucocorticoid therapy are the cornerstones of pharmaceutical treatment for RVO. There is considerable interest in developing new pharmaceuticals in and out of these two classes to reduce costs, lower injection burden, and treat the occlusion itself, rather than the complications. AREAS COVERED In this review, we discuss novel pharmaceuticals for the treatment of RVO outside of current standard of care. We performed a comprehensive literature search encompassing pharmaceuticals that have recently been approved or have shown promising results in early clinical trials or animal models. EXPERT OPINION Anti-VEGF therapy remains the most efficacious treatment for RVO with a very favorable side effect profile. New biosimilars reduce costs while maintaining efficacy. Novel glucocorticoids may be a useful therapy in patients for whom anti-VEGF therapy has failed, or as an adjunct. Pharmaceuticals in other drug classes, particularly those with neuroprotective or regenerative properties, as well as those geared toward treating the occlusion itself, represent exciting options for early RVO therapy, but are likely years away from clinical relevance.
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Affiliation(s)
- Matthew Driban
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Nikita Kedia
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Supriya Arora
- Bahamas Vision Center and Princess Margaret Hospital, Nassau, New Providence, Bahamas
| | - Jay Chhablani
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Aksu-Ceylan N, Cebeci Z, Altinkurt E, Kir N, Oray M, Tugal-Tutkun I. Interferon Alpha-2a for the Treatment of Cystoid Macular Edema Secondary to Acute Retinal Necrosis. Ocul Immunol Inflamm 2022; 30:1788-1797. [PMID: 34348058 DOI: 10.1080/09273948.2021.1957121] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
PURPOSE To report the results of interferon (IFN) α-2a treatment in patients with cystoid macular edema (CME) secondary to acute retinal necrosis (ARN). METHODS We reviewed the records of seven patients (eight eyes) who received IFNα-2a for post-ARN CME. The initial dose of IFNα-2a was 3 MIU/day and it could be tapered down to 3 MIU twice a week. Efficacy was assessed by central macular thickness (CMT) on spectral-domain optical coherence tomography and visual acuity. RESULTS Age range of seven patients (four men, three women) was 36-74 years. Mean CMT decreased from 477.9 ± 167.5 μm to 367.3 ± 120.5 μm at first week, and vision improved up to five lines in five eyes. CME relapsed after cessation of IFNα-2a in all and improved following reinstitution of treatment. Treatment was discontinued in one patient because of depression. Three patients electively discontinued treatment due to poor tolerability or lack of functional improvement. CONCLUSION IFNα-2a is an effective therapeutic option for post-ARN CME, though side effects such as fatigue, elevated liver enzymes, neutropenia, and depression may limit tolerability. Lower initial doses may be a better tolerated.
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Affiliation(s)
- Nihan Aksu-Ceylan
- Istanbul Faculty of Medicine, Department of Ophthalmology, Istanbul University, Istanbul, Turkey
| | - Zafer Cebeci
- Istanbul Faculty of Medicine, Department of Ophthalmology, Istanbul University, Istanbul, Turkey
| | - Emre Altinkurt
- Istanbul Faculty of Medicine, Department of Ophthalmology, Istanbul University, Istanbul, Turkey
| | - Nur Kir
- Istanbul Faculty of Medicine, Department of Ophthalmology, Istanbul University, Istanbul, Turkey
| | - Merih Oray
- Istanbul Faculty of Medicine, Department of Ophthalmology, Istanbul University, Istanbul, Turkey
| | - Ilknur Tugal-Tutkun
- Istanbul Faculty of Medicine, Department of Ophthalmology, Istanbul University, Istanbul, Turkey
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Zhang J, Yan H, Li J, Li B. Aqueous Humor Factors' Predictive Effects in Treating Refractor Macular Edema: An Overview. J Interferon Cytokine Res 2022; 42:515-524. [PMID: 36036998 DOI: 10.1089/jir.2022.0082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The refractory macular edema (RME) seriously affects the patient's vision due to its repetition and ineffective drug response. RME is mainly related to the inflammatory pathway and angiogenesis pathway. At present, microglia activation and angiogenesis have also been widely focused on. With the promotion of the concept of precision diagnosis and treatment, intraocular fluid is becoming a popular evidence-based method. The detection and evaluation of aqueous humor factors can provide more accurate evidences and guidance for the treatment of RME. The purpose of this article is to review the treatment prediction and assessment progress of aqueous humor cytokines for the RME, giving evidence to provide a basis for expanding the diagnosis and treatment ideas of RME and guiding the development of personalized medical treatment.
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Affiliation(s)
- Jie Zhang
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Hui Yan
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jing Li
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Bing Li
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
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Ferreira LB, Smith AJ, Smith JR. Biologic Drugs for the Treatment of Noninfectious Uveitis. Asia Pac J Ophthalmol (Phila) 2021; 10:63-73. [PMID: 33481396 DOI: 10.1097/apo.0000000000000371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
ABSTRACT The management of noninfectious uveitis is constantly evolving. A new "biologic era" in treatment began after the effectiveness of tumor necrosis factor-alpha blocking drugs was demonstrated in rheumatologic inflammatory diseases. The goal of specific immunomodulation with a biologic drug is to target inflammation at the molecular level with a low rate of serious adverse events. The purpose of this review is to summarize current knowledge of biologic drugs in the treatment of noninfectious uveitis by describing clinical studies and recent pharmacological developments.
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Affiliation(s)
| | - Anthony J Smith
- College of Medicine & Public Health, Flinders University, Adelaide, Australia
- Clinical Immunology and Allergy Unit, Flinders Medical Centre, Adelaide, Australia
| | - Justine R Smith
- College of Medicine & Public Health, Flinders University, Adelaide, Australia
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