Efficacy and safety of adalimumab in the treatment of non-infectious uveitis: a meta-analysis and systematic review

Diagnosis and Treatment of Uveitis in Children: A Summary of the Latest Data from a 5-Year Literature Review (2018-2023)

Pediatric uveitis has a low incidence. It is very diverse in its presentation and is often the first sign of a severe systemic disease. The pediatric population poses a special therapeutic and diagnostic challenge due to the potentially adverse effects of therapeutic agents on the young body and difficult cooperation with the patient during the examination, as well as the increased risk of complications that can lead to severe disability. The most commonly diagnosed type of uveitis is non-infectious, with first-line therapy consisting of systemic corticosteroids followed by disease-modifying drugs (methotrexate (MTX), mycophenolate mofetil (MMF), and cyclosporin A (CsA)). In severe, refractory cases, biologic therapy is used. The authors reviewed the current literature on the etiology, diagnostic tools, and treatment of uveitis in the pediatric population covering the years 2018-2023, presenting current methods of modern diagnosis and treatment. The reason for writing this article was the need to update the knowledge on uveitis, driven by the increasing prevalence of autoimmune uveitis in the pediatric population. This trend presents significant challenges in diagnosing and treating the disease, as well as managing its complications. Correctly identifying the pathogenetic factor of uveitis can facilitate the diagnosis of the systemic disease underlying the ocular infection and enable the timely implementation of systemic treatment. Furthermore, the emergence of new diagnostic methods necessitates a revision and update of ophthalmic knowledge, essential for both ophthalmologists and other specialists involved in the treatment of uveitis.

Efficacy, retention rate and safety of adalimumab treatment in patients with non-infectious uveitis and scleritis: a real-world, retrospective, single-centre study

OBJECTIVES

To evaluate the outcomes of adalimumab (ADA) treatment of patients with non-infectious uveitis and scleritis, focusing on efficacy, retention rate, and safety.

METHODS

This retrospective, clinical cohort study included 62 patients (104 eyes) with active ocular inflammation treated with ADA. Primary outcomes were efficacy and cumulative drug retention rate (DRR) of ADA. The secondary outcomes included changes in ocular inflammatory parameters, changes in best-corrected visual acuity (BCVA) and central macular thickness (CMT), corticosteroid-sparing effect, impact of concomitant use of disease-modifying antirheumatic drug (DMARD) and ADA as first or ≥2nd biotherapy line on DRR, and adverse events.

RESULTS

Forty-five patients (72.6%) achieved inactive disease at the end of follow-up. DRR at 6, 12, 24, and 48 months was 96.8%, 89.2%, 63.1%, and 63.1%, respectively. Of the 18 patients whose bi-weekly ADA treatment was escalated to weekly ADA due to primary or secondary inefficacy, 10 patients had inactive disease finally. BCVA improved (p < 0.001) and CMT decreased (p < 0.001) significantly at 6, 12, and 24 months after ADA therapy compared to baseline. Percentage of patients treated with ≥10 mg/day corticosteroid (61.3% vs. 6.4%) and DMARDs combined with ADA (46.8% vs. 37.1%) were lower at 6 months than at baseline. Concomitant DMARDs (p = 0.579) and use of ADA as first or ≥2nd biotherapy line (p = 0.527) had no significant effect on DRR. Most common adverse event was tuberculosis-related infections.

CONCLUSIONS

ADA seems to be effective and safe with good DRR to control ocular inflammation. Escalation to weekly ADA treatment may be an effective option in patients with primary or secondary inefficacy.

Long-term efficacy, safety, and cumulative retention rate of antitumor necrosis factor-alpha treatment for patients with Behcet's uveitis: A systematic review and meta-analysis

AIM

This study aims to evaluate the long-term efficacy, safety, and cumulative retention rate of antitumor necrosis factor-alpha (anti-TNF-α) therapy for patients with Behcet's uveitis (BU) using meta-analysis.

METHODS

We searched the Web of Science and PubMed databases for eligible studies up to December 1, 2022. The quality of each identified study was assessed using the Joanna Briggs Institute's case series literature quality assessment tool. Statistical analysis was conducted using Stata 16.0 software with a random-effects model.

RESULTS

Twelve studies comprising 1156 patients with BU were included in our analysis. We found that 85.0% of patients achieved ocular inflammation remission after receiving anti-TNF-α treatment, with a 95% confidence interval (CI) ranging from 78.7% to 90.5%. Additionally, 77.4% (95% CI: 57.5%-92.5%) experienced an improvement in visual acuity (VA). Moreover, the pooled dose reduction of glucocorticoids (GCs) was 11.08 mg (95% CI: -13.34 mg to -8.83 mg). Throughout the follow-up period, the cumulative retention rate of the medication was 67.3% (95% CI: 53.7%-79.6%). Serious adverse events occurred in 5.8% (95% CI: 3.1%-8.9%) of cases, with the three most common types being severe infusion or injection reactions (2.7%; 95% CI: 0.8%-5.4%), tuberculosis (1.3%; 95% CI: 0.0%-3.9%), and bacterial pneumonia (1.3%; 95% CI: 0.1%-3.4%). Subgroup analysis revealed that ocular inflammation remission rates were 89.3% (95% CI: 81.2%-95.5%) for adalimumab treatment and 83.7% (95% CI: 75.3%-90.8%) for infliximab treatment. The drug retention rate after adalimumab therapy was 70.3% (95% CI: 62.0%-78.0%) compared to 66.4% (95% CI: 48.6%-82.2%) for infliximab treatment. Furthermore, the incidence of severe infusion or injection reactions was 2.2% (95% CI: 0.1%-5.8%) following adalimumab treatment and 3.5% (95% CI: 0.7%-7.7%) following infliximab treatment.

CONCLUSIONS

Anti-TNF-α therapy represents an effective treatment for BU patients with favorable safety profile and high drug retention rate and a potential advantage of adalimumab over infliximab in terms of ocular inflammation remission, drug retention, and the incidence of severe infusion or injection reactions.

The Humira in Ocular Inflammations Taper (HOT) Study

PURPOSE

To assess factors that impact the risk of relapse in patients with noninfectious uveitis (NIU) who undergo adalimumab tapering after achieving remission.

DESIGN

Retrospective study.

METHODS

In this multicenter study, patients with NIU were treated with adalimumab and subsequently tapered. Patient demographics, type of NIU, onset and duration of disease, the period of inactivity before tapering adalimumab, and the tapering schedule were collected. The primary outcome measures were independent predictors of the rate of uveitis recurrence after adalimumab tapering.

RESULTS

Three hundred twenty-eight patients were included (54.6% female) with a mean age of 34.3 years. The mean time between disease onset and initiation of adalimumab therapy was 35.2 ± 70.1 weeks. Adalimumab tapering was commenced after a mean of 100.8 ± 69.7 weeks of inactivity. Recurrence was observed in 39.6% of patients at a mean of 44.7 ± 61.7 weeks. Patients who experienced recurrence were significantly younger than those without recurrence (mean 29.4 years vs 37.5 years, P = .0005), and the rate of recurrence was significantly higher in younger subjects (hazard ratio [HR] = 0.88 per decade of increasing age, P = .01). The lowest rate of recurrence was among Asian subjects. A faster adalimumab taper was associated with an increased recurrence rate (HR = 1.23 per unit increase in speed, P < .0005). Conversely, a more extended period of remission before tapering was associated with a lower rate of recurrence (HR = 0.97 per 10-weeks longer period of inactivity, P = .04).

CONCLUSIONS

When tapering adalimumab, factors that should be considered include patient age, race, and duration of disease remission on adalimumab. A slow tapering schedule is advisable.

Efficacy and Safety of Adalimumab in Patients with Behçet Uveitis: A Systematic Review and Meta-Analysis

PURPOSE

To examine the long-term efficacy and safety of adalimumab (ADA) in patients with Behçet uveitis (BU).

METHODS

A systematic review and meta-analysis of observational studies was performed. Pooled results are presented as mean difference or standardized mean difference (std diff) and 95% confidence intervals (CI). Visual acuity (VA), intraocular inflammation grade, central macular thickness, corticosteroid (CS) sparing effect and adverse events were evaluated.

RESULTS

Ten studies were included finally for quantitative and qualitative synthesis. ADA therapy resulted in 0.124 (95%CI: 0.084, 0.165) logMAR improvement in VA. In addition, ADA therapy resulted in decreased grade of intraocular inflammation [std diff, -1.187 (95%CI: -1.508, -0.866)] and macular thickness [std diff, -0.564 (95%CI: -0.843, -0.286)] and caused a decrease in CS dosage [std diff, -1.809 (95%CI: -2.420, -1.198)]. The pooled rate of overall adverse events for ADA in 301 patients was 8.5% (95%CI: 0.039, 0.177).

CONCLUSION

ADA is an efficient therapy that improves VA and controls intraocular inflammation, macular edema and retinal vasculitis. As the disease exposure time increased, improvement in VA was less. The safety and CS-sparing effect of ADA were demonstrated with few adverse effects. The results provided evidence that ADA can be used safely and efficiently as the first-line drug in patients with BU.

Effectiveness and Safety of Weekly Adalimumab for Non-Infectious Chronic Anterior Uveitis in Children

PURPOSE

Non-infectious chronic anterior uveitis (CAU) remains a therapeutic challenge. The purpose of this study was to analyze the effectiveness and safety of weekly dosing of adalimumab in children with non-infectious refractory CAU. Methods: Demographic and clinical data of children followed by non-infectious CAU treated with adalimumab were retrospectively reviewed.

RESULTS

Of the 42 children with CAU, 27/42 (64.3%) were treated with adalimumab. Escalation to weekly dosing of adalimumab was necessary for 11/27 children (40.7%). After 3 and 6 months, 7/11 children (63.6%) met the composite endpoint of inflammation control improvement. Children requiring weekly adalimumab had initially more severe uveitis: anterior chamber cells (p = 0.02), aqueous flare (p = 0.02), and presence of macular edema (p = 0.007). No children had serious systemic side effects.

CONCLUSION

Weekly adalimumab in children with refractory CAU appears to be an effective and safe treatment for inflammation control and corticosteroid sparing, and an alternative before biologic switching. Controlled studies are needed.

Predictive Factors for Magnetic Resonance Imaging Changes Suggestive of Demyelination in Adult Patients with Uveitis Scanned Prior to Commencing Adalimumab Therapy

PURPOSE

To report the predictive clinical factors for abnormal magnetic resonance imaging (MRI) scans suggestive of demyelination by analysis of MRI's performed for adult non-infectious uveitic patients prior to commencing adalimumab therapy.

METHODS

Retrospective case review of 240 patients was conducted in a single tertiary institution between November 2017 and March 2020. Aetiology of underlying disease, clinical characteristics, and MRI outcomes were analysed.

RESULTS

The presence of bilateral idiopathic intermediate uveitis (IIU) (p = .0048) and neurological symptoms (p = .028) were highly predictive of an abnormal MRI strongly suggestive of demyelination (MRSSD); 5 out of 64 scans (7.8%) with these clinical characteristics had MRSSD.

CONCLUSIONS

Tumor necrosis factor antagonist-induced demyelination is a concern in adalimumab use. We propose an MRI screening protocol to identify those at high risk of demyelination; positive results can be maximised by screening all patients with IIU and those with neurological symptoms.

Multiple Sclerosis in a Patient with Intermediate Uveitis and Juvenile Idiopathic Arthritis Treated with Adalimumab: A Case Report

PURPOSE

To report a case of multiple sclerosis (MS) development in a patient with Juvenile Idiopathic Arthritis (JIA) and bilateral intermediate uveitis (IU) treated with Adalimumab.

CASE REPORT

A 21-year-old Colombian woman diagnosed with JIA and bilateral refractory IU treated with methotrexate and Adalimumab with difficult control of the disease and multiple ocular complications. Eight years after starting Adalimumab, the patient presented paresthesia in the left upper limb. Radiologic findings in the brain and cervical spine MRI confirmed the diagnosis of MS.

CONCLUSIONS

We reported the first case of MS development in a patient with JIA treated with Adalimumab and the third in a patient with noninfectious uveitis treated with anti-TNFα. It remains uncertain whether MS is secondary to anti-TNFα therapy or is linked to a polyautoimmunity phenomenon.

Noninfectious Uveitis in Rheumatology: Patterns, Treatment, and Outcomes

OBJECTIVES

The present study aimed to determine the pattern and cause of noninfectious uveitis in rheumatology practice. The secondary objective was to identify the pattern of treatment and outcomes.

MATERIALS AND METHODS

This retrospective cross-sectional study was conducted in the Department of Rheumatology, National Hospital and Medical Centre, Lahore, Pakistan. After receiving consent, electronic medical records (EMRs) of all patients with a diagnosis of noninfectious uveitis (NIU) from November 2019 to January 2023 were reviewed, and a total of 52 patients labeled as having noninfectious uveitis were identified. The collected data included age at diagnosis, anatomical location of uveitis, associated systemic disease, used medications, and outcomes. All cases had been diagnosed and assessed mutually by a rheumatologist and an ophthalmologist using the International Uveitis Study Group classification system to classify the pattern of uveitis by location, clinical course, and laterality and rule out the possibility of other ophthalmologic diseases. Disease activity was defined using the Standardization of Uveitis Nomenclature (SUN) guidelines. Data was analyzed on SPSS Statistics version 23 (IBM Corp, Armonk, NY, USA).

RESULTS

The mean age of the patients in this study was 36.02 ± 43.31 years, with 31 (59.6%) male patients. Anterior uveitis was the most common type observed among the patients at 55.8%, panuveitis was found in 25%, intermediate uveitis and posterior uveitis were seen in 9.6% each. Based on laterality, unilateral eye involvement was identified in 53.8% of patients. Spondyloarthritis (SpA) and idiopathic uveitis were observed in 34.6% and 28.8%, respectively. In this study, 28 (54.9%) patients were on conventional disease-modifying antirheumatic drugs (cDMARDDs), and 23 (45.1%) were on biological DMARDs. In the biologics group, 82% of patients were in remission in comparison to 60% in the cDMARDs group.

CONCLUSION

To the best of our knowledge, this is the first report on noninfectious uveitis in the Pakistani population. The study concluded that anterior uveitis is the most common type of uveitis and is more common in males. Spondyloarthropathy is one of the most common underlying systemic diseases. Human leukocyte antigen (HLA)-B27 is associated more with uveitis. Biologics are more effective than cDMARDs in controlling the disease. Collaborative work between different specialties resulted in early diagnosis of underlying systemic disease, better management plans, and disease outcomes. To obtain further details on noninfectious uveitis, a population-based study is needed in Pakistan.

Comparison of infliximab with adalimumab for the treatment of non-infectious uveitis: a systematic review and meta-analysis

PURPOSE

To compare the efficacy and safety of infliximab with that of adalimumab in the treatment of non-infectious uveitis (NIU).

METHODS

We searched for relevant studies in the PubMed, Embase, ClinicalTrials.gov, Cochrane Library databases, Grey Matters, Grey Literature Report, OpenGrey, China National Knowledge Infrastructure (CNKI), and Wan Fang databases up to September 2022. The incidences of complete remission of inflammation, response to therapy, adverse events and corticosteroid-sparing effect were evaluated.

RESULTS

Eleven clinical trials covering 1459 NIU patients were included. Complete remission of inflammation after therapy was achieved in 161 (37.5%) patients in the infliximab group and 151 (39.6%) patients in the adalimumab group. These two groups were not significantly different (P = 0.37). Four studies reported response to anti-TNF therapy involving 449 patients, of whom 241/272 (88.6%) treated with infliximab and 153/177 (86.4%) treated with adalimumab achieved partial or complete remission of inflammation. No significant difference was observed between the two cohorts in terms of response to therapy (P = 0.86). There was no significant difference between infliximab and adalimumab with regard to corticosteroid-sparing effect (P = 0.58). The pooled effect size (P = 0.001) showed a statistically significant difference, with the incidence of adverse events being 17.91% for infliximab and 12.12% for adalimumab.

CONCLUSION

Our systematic review and meta-analysis of 11 studies suggests that infliximab and adalimumab have similar therapeutic efficacy and corticosteroid-sparing effect in patients with NIU. However, adalimumab has a marginal advantage over infliximab in terms of adverse events. Large-scale RCTs with a longer follow-up are required to further evaluate these two anti-TNF-α agents in patients with NIU.

Therapeutic Outcomes of Non-Infectious Scleritis Treated with Tumor Necrosis Factor-Alpha Inhibitors

PURPOSE

We determine the efficacy of tumor necrosis factor-α (TNF) inhibitors in establishing scleritis quiescence.

METHODS

We conducted a multicenter retrospective chart review of patients with non-infectious scleritis treated with a TNF inhibitor for at least 6 months. The primary endpoint was scleritis quiescence at 6 months. Secondary endpoints included scleritis quiescence at 12 months, TNF inhibitor effects on concurrent doses of systemic corticosteroids and visual acuity outcomes at 6 and 12 months.

RESULTS

At 6 months, 82.2% (37/45) of subjects obtained scleritis quiescence with TNF inhibition. At 12 months, 76.2% (32/42) of subjects remained quiescent. Baseline daily corticosteroid use (21.5 ± 21.6 mg) decreased to 5.4 ± 8.3 mg by 6 months (p < 0.0001) and 2.8 ± 6.1 mg by 12 months (p < 0.001). There was no significant difference between the baseline and 6-month BCVA (p = 0.52).

CONCLUSIONS

TNF inhibitors are an effective scleritis therapy with significant systemic corticosteroid sparing effect.

Therapeutic Response After Immunosuppressive Drug Prescription in Non-infectious Uveitis: A Survival Analysis

INTRODUCTION

To identify factors affecting the response rate to immunosuppressive drugs (ISDs) in patients with non-infectious uveitis (NIU).

METHODS

This longitudinal retrospective cohort study included patients from the Hospital Clinico San Carlos Uveitis Clinic diagnosed with NIU from 1992 to 2016. Subjects were followed up from ISD prescription until the achievement of good therapeutic response (GTR), ISD treatment change, or up to 12 months. GTR was defined as the complete resolution of the eye inflammatory manifestations with a corticosteroid dose ≤ 10 or ≤ 5 mg per day of prednisone or equivalent (GTR10 and GTR5, respectively) maintained for at least 28 days. Kaplan-Meier curves were estimated for GTR. Demographic, clinical, and treatment-related factors were analyzed using Cox robust regression.

RESULTS

A total of 73 patients (100 episodes of ISD prescription) were analyzed. In 44 and 41 episodes, GTR10 and GTR5 were achieved, respectively. A lower hazard for both GTRs was associated with uveitic macular edema at prescription and with a higher "highest oral corticosteroid dose prescribed in the year before ISD prescription". GTR10 was higher if cyclosporine was prescribed (compared to other ISDs), and if a higher number of ISDs had been previously prescribed. GTR5 hazard was lower for patients with posterior uveitis or if the ISDs were prescribed before 2008, and higher if periocular corticosteroids had been administered before ISD prescription, or if the duration of the posterior segment activity was shorter.

CONCLUSIONS

Factors associated with GTR to ISDs may help to identify patients with NIUs who could benefit from a thorough follow-up.

The Large Hellenic Study of Uveitis: Diagnostic and Therapeutic Algorithms, Complications, and Final Outcome

PURPOSE

The purpose of this study is to present the diagnostic and therapeutic algorithms, complications, and final outcome in the management of uveitic patients at a tertiary academic referral center.

DESIGN

Observational study.

METHODS

Analysis of the archives of 6191 uveitic patients at the Ocular Inflammation Service of the Department of Ophthalmology of the University Hospital of Ioannina in Greece from 1991 to 2020.

RESULTS

During the 30 years of the study, the diagnostic ability climbed from 45.43% (1991-1995) to 73.4% (2016-2020). This improvement was linked to several factors including the increase in the number of diagnostic paracenteses for the analysis of intraocular fluids, the range and quality of laboratory blood tests, the multimodal ophthalmic imaging, the proper use of nonophthalmic imaging, and the multidisciplinary approach. The degree of uveitis-related complications was related to the severity and cause of inflammation, the recurrence rate, inappropriate treatment, and the prolonged or initially inactive inflammation. The 3 most common complications included cataract, macular edema, and glaucoma. Apart from the modern treatments and surgical techniques, the 3-month preoperative control of inflammation played a critical role in the surgical outcomes. The percentage of patients with a successful outcome increased from 72% (2001-2005) to 90.50% (2016-2020). The center's experience, prompt referral, patient's compliance, and regular follow-ups are associated with a better outcome. The analysis of the results allowed the development of diagnostic and therapeutic algorithms.

CONCLUSIONS

Developing diagnostic and therapeutic algorithms allows for the efficient management of uveitis, leading to better visual outcome and therefore a better quality of life.

Efficacy of Tacrolimus in Uveitis, and the Usefulness of Serum Tacrolimus Levels in Predicting Disease Control. Results from a Single Large Center

AIMS

To evaluate the efficacy of tacrolimus in patients with noninfectious uveitis, as well as the usefulness of serum tacrolimus concentration measurements in predicting disease control.

METHODS

A retrospective review was carried out on 71 eligible patients from a single specialist uveitis center for minimum 1-year follow-up. Analysis was carried out on disease activity, visual acuity, and trough serum tacrolimus concentrations (STC).

RESULTS

At 1-year follow-up, disease control was achieved in 49 patients (69.0%), this was significantly more likely in patients with trough STC levels above 5 ng/mL (88% vs 53%, p = .002). There was a significant reduction in oral prednisolone (dose ≥7.5 mg, 86% vs 54%, p < .0001). Tacrolimus was discontinued in 12 patients (17%) due to side effects.

DISCUSSION

In this study cohort, oral tacrolimus was effective and well tolerated in the treatment of noninfectious uveitis. Trough STC between 5 ng/mL and 10 ng/ml was associated with better disease control at 1-year follow-up.

Clinical benefits and potential risks of adalimumab in non-JIA chronic paediatric uveitis

Purpose

To describe the treatment results with adalimumab in chronic paediatric uveitis, not associated with juvenile idiopathic arthritis (JIA).

Methods

Medical records of children with non‐JIA‐uveitis were reviewed retrospectively. Children without an underlying systemic disease were pre‐screened with brain magnetic resonance imaging (MRI) to exclude white matter abnormalities/demyelination.

Results

Twenty‐six patients were pre‐screened with brain MRI, of whom adalimumab was contraindicated in six patients (23%) with non‐anterior uveitis. Forty‐three patients (81 eyes) were included. Disease inactivity was achieved in 91% of the patients after a median of three months (3–33). Best‐corrected visual acuity (BCVA) improved from 0.16 ± 0.55 logarithm of the minimum angle of resolution (logMAR) at baseline to 0.05 ± 0.19 logMAR at 24 months (p = 0.015). The median dosage of systemic corticosteroids was reduced to 0 mg/day at 24 months of follow‐up (versus 10 mg/day at baseline; p < 0.001). Adalimumab was discontinued in thirteen children due to ineffectiveness (n = 8), side effects (n = 1), long‐term inactivity of uveitis (n = 3) or own initiative (n = 1). Relapse of uveitis occurred in 19 (49%) patients, 5 (26%) of them without an identifiable cause.

Conclusion

Adalimumab is effective in the treatment of non‐JIA‐uveitis in paediatric patients by achieving disease inactivity in the majority of the patients, improving BCVA and decreasing the dose of corticosteroids. Adverse events and side effects are limited. Pre‐screening with MRI of the brain is recommended in paediatric patients with intermediate and panuveitis.

TNF-α in Uveitis: From Bench to Clinic

Uveitis is an inflammation of the iris, ciliary body, vitreous, retina, or choroid, which has been shown to be the first manifestation of numerous systemic diseases. Studies about the immunopathogenesis and treatment of uveitis are helpful to comprehend systemic autoimmune diseases, and delay the progression of systemic autoimmune diseases, respectively. Tumor necrosis factor-alpha (TNF-α), a pleiotropic cytokine, plays a pivotal role in intraocular inflammation based on experimental and clinical data. Evidence of the feasibility of using anti-TNF-α agents for uveitis management has increased. Although there are numerous studies on TNF-α in various autoimmune diseases, the pathological mechanism and research progress of TNF-α in uveitis have not been reviewed. Therefore, the objective of this review is to provide a background on the role of TNF-α in the immunopathogenesis of uveitis, as well as from bench to clinical research progress, to better guide TNF-α-based therapeutics for uveitis.

Efficacy and Safety of Adalimumab in Noninfectious Uveitis: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Background: Patients with noninfectious uveitis (NIU) are at risk of systemic side effects of long-term glucocorticoid therapy and uncontrolled inflammatory complications. In urgent need to identify more aggressive therapies, adalimumab (ADA) may be the right choice.

Objectives: To summarize the current evidence from randomized controlled trials (RCTs) regarding the efficacy and safety of ADA in the treatment of NIU.

Methods: We searched Pubmed, Embase, Web of Science, Cochrane Library databases, and Clinical Trials Registry for qualifying articles from their inception to November 19, 2020, with no language restriction. Randomized controlled trials comparing ADA with conventional routine treatment in noninfectious uveitis patients of any age, gender, or ethnicity were included. The primary outcome was the time to treatment failure (TF). The secondary outcomes were the change in best-corrected visual acuity (BCVA), change in the anterior chamber (AC) cell grade, change in vitreous haze (VH) grade, and adverse events (AEs).

Main results: The six studies comprised 605 participants in all, and the sample size of each study ranged from 16 to 225. The overall pooled results of the primary outcome (HR = 0.51; 95% CI, 0.41 to –0.63) showed that ADA nearly halved the risk of treatment failure compared to placebo for NIU patients. The pooled mean difference of change in BCVA was -0.05 (95% CI, −0.07 to −0.02). The pooled mean difference of change in AC cell grade and VH grade was −0.29 (95% CI, −0.62 to −0.05) and −0.21 (95% CI, −0.32 to −0.11), respectively. The incidence of AEs in the ADA group was numerically higher than that of AEs in the placebo group (2,237 events and 9.40 events per patient-year, equivalent to 1,257 events and 7.79 events per patient-year).

Conclusion: This meta-analysis of six RCTs further confirmed that ADA considerably lowered the risk of treatment failure or visual loss, and moderately reduced AC cell grades and VH grades with slightly more AEs, as compared to placebo. ADA is both effective and safe in treating NIU.

Systematic Review Registration: [https://clinicaltrials.gov], identifier [CRD42020217909].

The Effect of Adalimumab in Korean Patients with Refractory Noninfectious Uveitis

We sought to analyze the efficacy of adalimumab in active noninfectious uveitis, and evaluate its efficacy and safety for the management of refractory noninfectious uveitis in Korean patients. A retrospective observational study was conducted. A total of 23 eyes of 14 Korean patients with noninfectious uveitis refractory to conventional treatment, including corticosteroid and immunosuppressive agents, were treated with adalimumab between December 2017 and February 2020. The primary outcomes were vitreous haziness grades, anterior chamber cell grades, and central macular thickness measured prior to injection and at 1, 3, 6, and 12 months after the first adalimumab injection. Among the 23 eyes, 14 eyes (60.9%) were diagnosed with panuveitis and 9 eyes (39.1%) with posterior uveitis [mean follow-up period: 22.3 months (7-27)]. The most common etiologic diagnoses requiring adalimumab injection were Behçet's disease (9 eyes, 39.1%), followed by undifferentiated inflammation (6 eyes, 26.1%), Vogt-Koyanagi-Harada disease (3 eyes, 13.0%), psoriasis (2 eyes, 8.7%), serpiginous chorioretinopathy (2 eyes, 8.7%), and systemic lupus erythematosus (1 eye, 4.3%). At the 1-year follow-up after the first injection, anterior chamber cell grade decreased from 0.5±0.4 to 0.3±0.4, and vitreous haziness grade decreased from 1.1±1.1 to 0.3±0.5 (p<0.05). Central macular thickness improved from 347.2±98.1 μm to 264.3±61.1 μm (p<0.05). Adalimumab injection in patients with refractory noninfectious uveitis decreased the anterior chamber cell grade, vitreous haziness grade, and central macular thickness with no severe side effect. Overall, adalimumab injection may, therefore, be an effective and relatively safe treatment modality for noninfectious uveitis in Korean patients.

Biotherapies in Uveitis

Non-infectious uveitis (NIU) represents one of the leading causes of blindness in developed countries. The therapeutic strategy aims to rapidly control intra-ocular inflammation, prevent irremediable ocular damage, allow corticosteroid sparing and save the vision, and has evolved over the last few years. Anterior NIU is mostly managed with topical treatment in adults. However, for intermediate, posterior and pan-uveitis, notably when both eyes are involved, systemic treatment is usually warranted. Biotherapies are recommended in case of inefficacy or non-tolerance of conventional immunosuppressive drugs in non-anterior NIU. Anti-tumor necrosis factor alpha (anti-TNF-α) agents are by far the most widely used, especially adalimumab (ADA) and infliximab (IFX). In case of sight-threatening uveitis in Behçet's disease or in case of risk of severe recurrences, respectively IFX and ADA may be recommended as first-line therapy. Many questions are left unanswered; how long to treat NIU, how to discontinue anti-TNF-α agents, what biologic to use in case of anti-TNF-α failure? The objective of this review is to present an updated overview of knowledge on the use of biological treatments in NIU.

Dual-acting therapeutic proteins for intraocular use

Intravitreally injected antibody-based medicines have revolutionised the treatment of retinal disease. Bispecific and dual-functional antibodies and therapeutic proteins have the potential to further increase the efficacy of intraocular medicines.

Effectiveness and Safety of Anti-Tumor Necrosis Factor-Alpha Agents Treatment in Behcets' Disease-Associated Uveitis: A Systematic Review and Meta-Analysis

Purpose

We conducted a systematic review and meta-analysis to determine the effectiveness and safety of anti-tumor necrosis factor-alpha (TNF-α) agents in the treatment of Behcets’ disease (BD)-associated uveitis.

Method

Three electronic databases, Embase, MEDLINE, and the Cochrane Library, were searched for eligible papers focusing on the anti-TNF-α agents treatment in BD-associated uveitis with at least 6 months follow-up time. A systematic review and meta-analysis was conducted on selected papers with appropriate clinical and methodological homogeneity. The effectiveness outcomes included inflammation remission, visual acuity (VA) improvement, central macular thickness (CMT) decrease, corticosteroid (CS)-sparing effects, and the safety outcomes included minor and severe drug-related adverse events (AEs).

Result

From Jan 2010 to Dec 2019, there were 504 records produced in total, in which 18 clinical trials were selected for meta-analysis (15 trials were retrospective studies, and 3 were prospective studies). The number of patients in each study ranged from 11 to 163 and the mean follow-up time from 0.9 to 6.44 years. During the follow-up, the pooled inflammation remission rate was 68% with a 95% confidence interval (CI) of 0.59–0.79, VA improvement rate was 60% (95% CI 0.47–0.77), CMT decrease was 112.70 μm (95% CI 72.8–153.0 μm). The proportions of patients who had CS-suspended and CS-tapered reached 38% (95% CI 0.23–0.65) and 34% (95% CI 0.16–0.70), respectively. The severe AEs were reported but not common, which included severe infusion reactions, pneumonia, bacteremia, tuberculosis, melanoma, and lymphoma.

Conclusion

Anti-TNF-α agents treatment has high effectiveness including efficient inflammation remission, satisfactory VA improvement, obvious CMT reduction, and significant CS-sparing effects. Although some drug-related AEs were reported, the incidence of severe AEs was acceptable. Anti-TNF-α agents treatment is a promising option for controlling BD-associated uveitis.

A review of ocular adverse events of biological anti-TNF drugs

The recent introduction of biological agents has revolutionized the treatment of chronic immune-inflammatory diseases; however, this new therapy did not come without significant side effects.Through large controlled studies indicating decrease in the number of uveitis flares, the role of TNF inhibitors therapy for non-infectious uveitis gained more ground. Paradoxically to its therapeutic effect, there are reports associating these drugs with the onset or recurrence of inflammatory eye disease.A number of studies have suggested possible roles for anti-TNF-α agents in precipitating or worsening an underlying inflammatory process, including the hypothesis of a disequilibrium in cytokine balance, but to date the mechanisms responsible for these adverse events are not fully understood.A PubMed literature search was performed using the following terms: ophthalmic complication, uveitis, inflammatory eye disease, optic neuritis, neuropathy, adverse events, anti-TNF, TNF alpha inhibitor, infliximab, etanercept, adalimumab, golimumab, certolizumab, and biologics. The data presented in this study was mainly derived from the use of TNF inhibitors in rheumatology, essentially because these drugs have been used for a longer period in this medical field.Many of the ocular adverse events reported on this review may be considered a paradoxical effect of anti-TNF therapy. We found a variety of data associating new onset of uveitis with anti-TNF therapy for rheumatic conditions, predominantly under etanercept.In conclusion, although there is increasing data on ocular adverse events, it remains to be seen whether the suggested link between TNF inhibitors and the onset of ocular inflammation is substantiated by more quality data. Nevertheless, the awareness of potential treatment side effects with anti-TNF should be highlighted.

Recent advances in slow and sustained drug release for retina drug delivery

INTRODUCTION

Striking recent advance has occurred in the field of medical retina, greatly because intraocular drugs have been developed, enhancing their clinical efficacy while avoiding systemic side-effects. However, the burden of repeated intraocular administration makes limits the optimal efficacy of treatments, prompting the development of new drugs with prolonged half-life or of sustained drug delivery systems.

AREAS COVERED

In this review, we describe the various drugs and drug delivery systems that have reached the clinical stage and those that are in clinical development and we discuss the limitations to clinical translation.

EXPERT OPINION

Substantial fundamental work is still required to build guidelines on optimal animal models for ocular pharmacokinetics and safety studies depending on the target disease site and the on the type of therapeutic compounds. The effects of a drug administered as a bolus at high concentration in the vitreous might differ from those resulting from the sustained release of a lower concentration, and no delivery platform can be simply adapted to any drug. For the treatment of retinal diseases, development of therapeutic compounds should integrate from its early conception, the combination of an active drug with a specific drug delivery system, administered by a specific route.

Targets of immunomodulation in bacterial endophthalmitis

Bacterial infection of the posterior segment of the eye (endophthalmitis) leads to a robust host response that often results in irreversible damage to the layers of the retina, significant vision loss, and in some patients, enucleation of the globe. While a great deal of effort has gone into understanding the role of bacterial virulence factors in disease initiation and propagation, it is becoming increasingly clear that the host response to infection plays a major role in causing the damage associated with endophthalmitis. Researchers have identified the host receptors which detect infecting organisms and initiate the cascade of events that result in inflammation. This inflammation may damage nonregenerative tissues of the eye while attempting to clear the infection. Both Gram-positive and Gram-negative bacteria can cause endophthalmitis. These organisms initiate an immune response by activating toll-like receptor (TLR) pathways. Once an inflammatory response is initiated, the expression of immunomodulators, such as proinflammatory chemokines and cytokines, affect the recruitment of PMNs and other inflammatory cells into the eye. We and others have reported that knockout mice that do not express specific inflammatory pathways and molecules have an attenuated response to infection and retain significant retinal function. These findings suggest that host immune mediators are important components of the response to infections in the posterior segment of the eye, and the timing and level of their production may be related to the severity of the damage and the ultimate visual outcome. If that is the case, a better understanding of the complex and often redundant role of these pathways and inflammatory mediators may identify host molecules as potential anti-inflammatory therapeutic targets. This review highlights potential anti-inflammatory targets during acute inflammation in endophthalmitis, compares and contrasts those with findings in other models of ocular inflammation, and translates current immunomodulatory strategies for other types of infection and inflammation to this blinding disease. Given the poor visual outcomes seen in patients treated with antibiotics alone or in combination with corticosteroids, immunomodulation in addition to antibiotic therapy might be more effective in preserving vision than current regimens.