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Spartalis C, Stübiger N, Spitzer MS, Bartsch U, Atiskova Y. The Challenge of Treating the Severest Forms of Chronic Noninfectious Posterior and Panuveitis. Klin Monbl Augenheilkd 2023. [PMID: 37494271 DOI: 10.1055/a-2074-9102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
BACKGROUND Noninfectious posterior and panuveitis may exhibit a chronic relapsing clinical course and are challenging to treat. Most affected patients are continuously treated with systemic immunosuppressive therapy, which is potentially associated with significant adverse side effects. METHODS A cohort of 18 patients presenting with severe noninfectious posterior or panuveitis were evaluated with respect to the clinical course of the disease, with particular focus on best-corrected visual acuity (BCVA), treatment duration, remission rates, reported negative side effects, and the necessity for switching medication. RESULTS The mean follow-up was 27.8 months. Although BCVA improved significantly, complete or partial remission was observed in only 66.7% of patients. Of the patients, 72.2% underwent a change in medical treatment due to either adverse events or inefficacy of medication. CONCLUSION Despite new immunosuppressive therapies, effective treatment of severe noninfectious posterior and panuveitis remains a major challenge. We discuss the urgent need for novel treatment strategies in order to prevent systemic adverse effects, and to improve visual outcome and quality of life.
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Affiliation(s)
| | - Nicole Stübiger
- Ophthalmology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Martin S Spitzer
- Ophthalmology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Udo Bartsch
- Ophthalmology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
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2
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Hasan N, Chawla R, Shaikh N, Kandasamy S, Azad SV, Sundar MD. A comprehensive review of intravitreal immunosuppressants and biologicals used in ophthalmology. Ther Adv Ophthalmol 2022; 14:25158414221097418. [PMID: 35602659 PMCID: PMC9121505 DOI: 10.1177/25158414221097418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 04/11/2022] [Indexed: 12/18/2022] Open
Abstract
Systemic immunosuppressants and biologicals have been a valuable tool in the
treatment of inflammatory diseases and malignancies. The safety profile of these
drugs has been debatable, especially in localized systems, such as the eye. This
has led to the search for fairly local approaches, such as intravitreal,
subconjunctival, and topical route of administration. Immunosuppressants have
been used as a second-line drug in patients intolerable to corticosteroids or
those who develop multiple recurrences on weaning corticosteroids. Similarly,
biologicals have also been used as the next line of therapy, when adequate
control of inflammation could not be attained or immunosuppressants were
contraindicated to patients. Intravitreal immunosuppressants, such as
methotrexate and sirolimus, have been extensively studied in noninfectious
posterior uveitis, whereas limited studies have established the efficacy of
intravitreal biologicals, such as infliximab and adalimumab. Most of these drugs
have shown good safety profile and tolerability in animal studies alone and have
not been studied further in human subjects. However, most of the studies in
literature are single-case reports or case series which limits the level of
evidence. In this comprehensive review, we discuss the mechanism of action,
pharmacodynamics, pharmacokinetics, indications, efficacy, and side effects of
different intravitreal immunosuppressants and biologicals that have been studied
in literature.
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Affiliation(s)
- Nasiq Hasan
- All India Institute of Medical Sciences, New Delhi, New Delhi, India
| | - Rohan Chawla
- Associate Professor, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, New Delhi 110029, India
| | - Nawazish Shaikh
- All India Institute of Medical Sciences, New Delhi, New Delhi, India
| | | | | | - M. Dheepak Sundar
- All India Institute of Medical Sciences, New Delhi, New Delhi, India
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Weigelt CM, Zippel N, Fuchs H, Rimpelä AK, Schönberger T, Stierstorfer B, Bakker RA, Redemann NH. Characterization and Validation of In Vitro and In Vivo Models to Investigate TNF-α-Induced Inflammation in Retinal Diseases. Transl Vis Sci Technol 2022; 11:18. [PMID: 35579886 PMCID: PMC9123507 DOI: 10.1167/tvst.11.5.18] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Purpose Inflammation is implicated in the etiology of diverse retinopathies including uveitis, age-related macular degeneration or diabetic retinopathy. Tumor necrosis factor alpha (TNF-α) is a well-known proinflammatory cytokine that is described as a biomarker for inflammation in diverse retinopathies and therefore emerged as an interesting target to treat inflammation in the eye by neutralizing anti-TNF-α antibodies. Methods Recently, we have demonstrated that Adeno-associated virus (AAV)–mediated expression of human TNF-α in the murine eye induces retinal inflammation including vasculitis and fibrosis, thereby mimicking human disease-relevant pathologies. In a proof-of-mechanism study, we now tested whether AAV-TNF-α induced pathologies can be reversed by neutralizing TNF-α antibody treatment. Results Strikingly, a single intravitreal injection of the TNF-α antibody golimumab reduced AAV-TNF-α–induced retinal inflammation and retinal thickening. Furthermore, AAV-TNF-α–mediated impaired retinal function was partially rescued by golimumab as revealed by electroretinography recordings. Finally, to study TNF-α-induced vasculitis in human in vitro cell culture assays, we established a monocyte-to-endothelium adhesion co-culture system. Indeed, also in vitro TNF-α induced monocyte adhesion to human retinal endothelial cells, which was prevented by golimumab. Conclusions Overall, our study describes valuable in vitro and in vivo approaches to study the function of TNF-α in retinal inflammation and demonstrated a preclinical proof-of-mechanism treatment with golimumab. Translational Relevance The AAV-based model expressing human TNF-α allows us to investigate TNF-α–driven pathologies supporting research in mechanisms of retinal inflammation.
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Affiliation(s)
- Carina M Weigelt
- Cardiometabolic Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Nina Zippel
- Cardiometabolic Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Holger Fuchs
- Cardiometabolic Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Anna-Kaisa Rimpelä
- Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Tanja Schönberger
- Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Birgit Stierstorfer
- Nonclinical Drug Safety, Boehringer Ingelheim Pharma GmbH & Co.KG, Biberach, Germany
| | - Remko A Bakker
- Cardiometabolic Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Norbert H Redemann
- Cardiometabolic Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
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Donmez O, Yaman A, Ozturk T, Aktas S, Altun ZS, Yılmaz O. The efficacy of systemic and intravitreal infliximab treatments in an endotoxin-induced uveitis model. Cutan Ocul Toxicol 2019; 38:360-369. [PMID: 31213109 DOI: 10.1080/15569527.2019.1632883] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Purpose: To compare the efficacy of systemic and intravitreal infliximab treatments in an experimental endotoxin-induced uveitis (EIU) model. Methods: Twenty-eight white New Zealand rabbits were equally divided into 4 groups. Group 1 received an intravitreal injection of 0.1 cc saline, group 2 received an intravitreal injection of 2 µg/0.1 cc lipopolysaccharide (LPS), group 3 received an intravitreal injection of 2 µg/0.1 cc LPS and 2 mg/0.1 cc infliximab, and group 4 received intravitreal injection of 2 µg/0.1 cc LPS and intravenous injection of 5 mg/kg infliximab. Clinical, biochemical (aqueous and vitreous humour protein levels and TNF-α concentrations), and histopathological evaluations were performed. Results: The clinical examination score was lower in group 4 than in group 2 (p = 0.006); but there was no significant difference between groups 2 and 3 (Bonferroni correction, p = 0.016). No statistically significant difference was found among groups 2, 3, and 4 for aqueous humour protein levels (p > 0.05). Significantly higher aqueous humour concentrations of TNF-α was measured in group 3 comparing to both group 1 and 4 (p = 0.003 and p = 0.002, respectively). No significant difference was found in vitreous protein levels or TNF-α concentrations among all study groups (Bonferroni correction, p = 0.026 and p = 0.101, respectively). Histopathological evaluation of the uveal tissue and anterior chamber reaction revealed the highest inflammation in group 3 (p < 0.001). In group 4, histopathological evaluation of uveal tissue was lower than in groups 2 and 3 (p < 0.001 and p = 0.001, respectively); whereas there was no difference in anterior chamber inflammation between groups 2 and 4 (p = 1.00). Conclusion: Intravitreal 2 mg/0.1 cc infliximab injection exacerbated inflammation in an EIU model; whereas systemic infliximab treatment at a dose of 5 mg/kg suppressed inflammation effectively and rapidly.
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Affiliation(s)
- Oya Donmez
- Department of Ophthalmology, Bayindir Kavaklidere Hospital , Ankara , Turkey
| | - Aylin Yaman
- Department of Ophthalmology, Dokuz Eylul University School of Medicine , Izmir , Turkey
| | - Taylan Ozturk
- Department of Ophthalmology, Dokuz Eylul University School of Medicine , Izmir , Turkey
| | - Safiye Aktas
- Department of Basic Oncology, Oncology Institute, Dokuz Eylul University School of Medicine , Izmir , Turkey
| | - Zekiye Sultan Altun
- Department of Basic Oncology, Oncology Institute, Dokuz Eylul University School of Medicine , Izmir , Turkey
| | - Osman Yılmaz
- Department of Experimental Animal Laboratory, Dokuz Eylul University School of Medicine , Izmir , Turkey
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Leal I, Rodrigues FB, Sousa DC, Romão VC, Duarte GS, Carreño E, Dick AD, Marques-Neves C, Costa J, Fonseca JE. Efficacy and safety of intravitreal anti-tumour necrosis factor drugs in adults with non-infectious uveitis - a systematic review. Acta Ophthalmol 2018; 96:e665-e675. [PMID: 29577629 DOI: 10.1111/aos.13699] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Accepted: 12/09/2017] [Indexed: 12/29/2022]
Abstract
Anti-tumour necrosis factor (TNF) drugs have been extensively used in non-infectious uveitis (NIU), when corticosteroids or conventional immunosuppressive drugs cannot adequately control inflammation or intolerable side-effects occur. However, systemic anti-TNF therapies are also associated with a myriad of side-effects. Therefore, intravitreal administration of anti-TNF biologics has been employed to minimize patient morbidity and systemic adverse effects, while maintaining therapeutic effectivity. We undertook a systematic review to determine evidence of efficacy and safety of intravitreal administration of anti-TNF drugs in adults with NIU. We conducted this systematic review according to the PRISMA guidelines. The protocol was registered with PROSPERO (CRD42016041946). We searched CENTRAL, MEDLINE and EMBASE, from inception to April 2017, as well as clinical trial registries and grey literature. The qualitative analysis included all studies of adult patients with a diagnosis of NIU and who received intravitreal anti-TNF drugs with a 4-week minimum follow-up. A total of 4840 references were considered for title and abstract screening. Seven full texts were screened, and five studies were considered for analysis. All studies were open-label, single-centre, prospective, non-randomized, interventional case series with a follow-up between 4 and 26 weeks, employing either adalimumab in two studies and infliximab in three. Three studies showed a treatment effect of anti-TNF intravitreal injections, while one study revealed short-term improvement and one study revealed no efficacy of anti-TNF intravitreal therapy. None of the studies reported ocular adverse effects but only two studies included electrophysiological assessment in the safety analysis and no study assessed systemic human anti-drug antibodies. The available evidence is not sufficiently robust to conclude about the clinical effectivity of intravitreal anti-TNF in NIU and so no recommendation can be made. In conclusion, intravitreal injection of anti-TNF antibodies remains a possible treatment option to be explored through robust clinical investigation.
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Affiliation(s)
- Inês Leal
- Department of Ophthalmology; Hospital de Santa Maria-CHLN; Lisbon Academic Medical Centre; Lisboa Portugal
- Department of Ophthalmology; Faculdade de Medicina; Universidade de Lisboa; Lisboa Portugal
- Centro de Estudos das Ciências da Visão; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
| | - Filipe B Rodrigues
- Laboratory of Clinical Pharmacology and Therapeutics; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
- Clinical Pharmacology Unit; Instituto de Medicina Molecular; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
- Huntington's Disease Centre; University College London; London UK
| | - David Cordeiro Sousa
- Department of Ophthalmology; Hospital de Santa Maria-CHLN; Lisbon Academic Medical Centre; Lisboa Portugal
- Department of Ophthalmology; Faculdade de Medicina; Universidade de Lisboa; Lisboa Portugal
- Centro de Estudos das Ciências da Visão; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
| | - Vasco C Romão
- Department of Rheumatology; Hospital de Santa Maria-CHLN; Lisbon Academic Medical Centre; Lisbon Portugal
- Rheumatology Research Unit; Instituto de Medicina Molecular; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
| | - Gonçalo S Duarte
- Laboratory of Clinical Pharmacology and Therapeutics; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
- Clinical Pharmacology Unit; Instituto de Medicina Molecular; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
| | - Ester Carreño
- Clinical Research Unit; Bristol Eye Hospital NHS Foundation Trust; Bristol UK
| | - Andrew D Dick
- Clinical Research Unit; Bristol Eye Hospital NHS Foundation Trust; Bristol UK
- School of Clinical Sciences; Faculty of Medicine and Dentistry; University of Bristol; Bristol UK
- National Institute for Health Research Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology; London UK
| | - Carlos Marques-Neves
- Department of Ophthalmology; Hospital de Santa Maria-CHLN; Lisbon Academic Medical Centre; Lisboa Portugal
- Department of Ophthalmology; Faculdade de Medicina; Universidade de Lisboa; Lisboa Portugal
- Centro de Estudos das Ciências da Visão; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
| | - João Costa
- Laboratory of Clinical Pharmacology and Therapeutics; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
- Clinical Pharmacology Unit; Instituto de Medicina Molecular; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
- Evidence Based Medicine Centre; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
- Portuguese Collaborating Centre of the Cochrane Iberoamerican Network; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
| | - João Eurico Fonseca
- Department of Rheumatology; Hospital de Santa Maria-CHLN; Lisbon Academic Medical Centre; Lisbon Portugal
- Rheumatology Research Unit; Instituto de Medicina Molecular; Faculdade de Medicina; Universidade de Lisboa; Lisbon Portugal
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Ozer EK, Goktas MT, Kilinc I, Toker A, Bariskaner H, Ugurluoglu C, Iskit AB. Infliximab alleviates the mortality, mesenteric hypoperfusion, aortic dysfunction, and multiple organ damage in septic rats. Can J Physiol Pharmacol 2017; 95:866-872. [DOI: 10.1139/cjpp-2016-0628] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Tumor necrosis factor-alpha (TNF-α) is a pivotal mediator that triggers inflammatory process, oxidative stress, and multiple organ injury in sepsis. We investigated the effects of infliximab on survival, mesenteric artery blood flow (MBF), vascular reactivity, and oxidative and inflammatory injuries in cecal ligation and puncture (CLP)-induced sepsis. Wistar rats were divided into Sham, CLP, Sham+infliximab, and CLP+infliximab subgroups. Twenty-four hours before the operations, rats were injected intraperitoneally with infliximab (7 mg/kg) or vehicle (saline; 1 mL/kg). Twenty hours after the operations, MBF and phenylephrine responses of isolated aortic rings were measured. Tissue damages were examined biochemically and histopathologically. Furthermore, survival rates were monitored throughout 96 h. Infliximab improved survival, mesenteric perfusion, and aortic function after CLP. Increases of serum AST, ALT, LDH, BUN, Cr, and inflammatory cytokines (tumor necrosis factor-alpha, interleukin-1 beta, and interleukin-6) induced by CLP were blocked by infliximab. Infliximab prevented malondialdehyde elevations in septic liver, lung, spleen, and kidney tissues, as well as glutathione reductions in septic liver, spleen, and kidney tissues. Protective effects of infliximab on multiple organ damage were also observed histopathologically. Infliximab showed protective effects in sepsis due to its improvement effects on mesenteric perfusion, aortic function, and its anti-inflammatory and antioxidative effects.
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Affiliation(s)
- Erdem Kamil Ozer
- Department of Pharmacology, Faculty of Medicine, Selcuk University, Konya, Turkey
| | - Mustafa Tugrul Goktas
- Department of Pharmacology, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey
| | - Ibrahim Kilinc
- Department of Biochemistry, Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Aysun Toker
- Department of Biochemistry, Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Hulagu Bariskaner
- Department of Pharmacology, Faculty of Medicine, Selcuk University, Konya, Turkey
| | - Ceyhan Ugurluoglu
- Department of Pathology, Faculty of Medicine, Selcuk University, Konya, Turkey
| | - Alper Bektas Iskit
- Department of Pharmacology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Abstract
Therapy for autoimmune ophthalmic disease is currently evolving. The improved understanding of the abnormal immune response in the various forms of uveitis has resulted in targeted therapy. The aberrations of the immune system have been characterized by atypical cell populations, cytokine expression, and cell-cell interactions. Different patterns of cytokine expression have now been delineated in the abnormal uveal tract with exaggerated and/or abnormal expression of TNF, IL-1, IL-2, IL-6, and IL-17. The development of therapies for other conditions in which these cytokines play an important role has resulted in the availability of biological agents that have been adopted for use in the therapy for uveitis. Adalimumab and infliximab have been the best studied anti-TNF agents and indeed have now been recommended by an expert panel as first-line treatment of ocular manifestations of Behçet's disease and second-line treatment for other forms of uveitis (Levy-Clarke et al. (Ophthalmology, 2013). Other anti-TNF agents have been studied as well. Daclizumab, a monoclonal antibody directed against the IL-2 receptor, has also demonstrated utility in treating uveitis as have some of the anti-IL1 agents. Gevokizumab has been granted orphan drug designation for the treatment of resistant forms of uveitis. Therapies affecting IL-6, including tocilizumab are being studied, and available medications that block antigen presenting cell and T cell interaction such as abatacept have been reported to be effective in uveitis. Interferons as well as rituximab have also been evaluated in small studies. Although these biologic therapies have provided a larger armamentarium to treat uveitis, challenges remain. Uveitis is not a single illness; rather, it is a manifestation of many potential systemic diseases that may have very specific individual therapeutic targets. Identifying and characterizing these underlying diseases is not always achieved, and more importantly, the most effective therapies for each entity have not been defined.
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Salazar-Méndez R, Yilmaz T, Cordero-Coma M. Moving forward in uveitis therapy: preclinical to phase II clinical trial drug development. Expert Opin Investig Drugs 2015; 25:195-214. [DOI: 10.1517/13543784.2016.1128893] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Pascual-Camps I, Hernández-Martínez P, Monje-Fernández L, Dolz-Marco R, Gallego-Pinazo R, Wu L, Arévalo JF, Díaz-Llopis M. Update on intravitreal anti-tumor necrosis factor alpha therapies for ocular disorders. J Ophthalmic Inflamm Infect 2014; 4:26. [PMID: 25825604 PMCID: PMC4372686 DOI: 10.1186/s12348-014-0026-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 09/24/2014] [Indexed: 12/31/2022] Open
Abstract
Tumor necrosis factor alpha (TNF-?) is an important pro-inflammatory cytokine associated with a variety of ocular diseases. The currently available TNF-? inhibitors are etanercept, infliximab, adalimumab, golimumab, and certolizumab. Experimental and clinical studies on the intravitreal use of these agents have been reported with etanercept, infliximab, and adalimumab: etanercept has shown limited efficacy in scarce reports; infliximab has been associated with local safety concerns but appears to benefit certain cases; adalimumab has shown no efficacy in cases of age-related macular degeneration (AMD) or diabetic macular edema (DME), but the combination with bevacizumab may be effective in refractory cases of macular diseases. Further preclinical and clinical studies are warranted in order to be able to obtain a more robust conclusion on the use of intravitreal TNF-? inhibitors.
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Affiliation(s)
- Isabel Pascual-Camps
- Department of Ophthalmology, University and Polytechnic Hospital La Fe, Av. Fernando Abril Martorell, n° 106, Valencia, 46026, Spain
| | - Pablo Hernández-Martínez
- Department of Ophthalmology, University and Polytechnic Hospital La Fe, Av. Fernando Abril Martorell, n° 106, Valencia, 46026, Spain
| | - Laura Monje-Fernández
- Department of Ophthalmology, University Hospital Complex, Alto de Nava s/n, Leon, 24071, Spain
| | - Rosa Dolz-Marco
- Department of Ophthalmology, University and Polytechnic Hospital La Fe, Av. Fernando Abril Martorell, n° 106, Valencia, 46026, Spain
| | - Roberto Gallego-Pinazo
- Department of Ophthalmology, University and Polytechnic Hospital La Fe, Av. Fernando Abril Martorell, n° 106, Valencia, 46026, Spain
| | - Lihteh Wu
- Instituto de Cirugía Ocular, Paseo Colón, San José, PO BOX 3971-1000, Costa Rica
| | - J Fernando Arévalo
- Retina Division, Wilmer Eye Institute, Johns Hopkins University School of Medicine, 600 N Wolfe St, Baltimore 21287, MD, USA ; Vitreoretinal Division, King Khaled Eye Specialist Hospital, Al Arubah Rd, Umm AL Hamam AL Gharbi, Riyadh 12329, Saudi Arabia
| | - Manuel Díaz-Llopis
- Faculty of Medicine, University of Valencia, Av Blasco Ibañez, 15, Valencia, 46010, Spain
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