Safety Outcomes of Brolucizumab in Neovascular Age-Related Macular Degeneration: Results From the IRIS Registry and Komodo Healthcare Map

Corneal Opacity in the United States: An American Academy of Ophthalmology IRIS® Registry (Intelligent Research in Sight) Study

PURPOSE

Vision loss associated with opacification of the cornea is one of the leading causes of blindness globally. However, the epidemiological data pertaining to the demographics, associated etiological causes and reduced vision in corneal opacity patients continue to be sparse. This study assesses the case frequencies, underlying etiologies, and vision outcomes in patients diagnosed with corneal opacity, in the United States.

DESIGN

Retrospective cohort study PARTICIPANTS: Patients in the IRIS® Registry (Intelligent Research in Sight) who were diagnosed with corneal opacity between January 1st, 2013, and November 30th, 2020.

METHODS

The IRIS Registry contains demographic and clinical data of 79,887,324 patients who presented to eye clinics during the study period. We identified patients with corneal opacity using International Classification of Disease (ICD) codes (ICD-9, and -10) of "371" (corneal scar) and "H17" (corneal opacity), respectively. The analyzed data included demographic parameters included age, sex, race, ethnicity, and geographical location. We evaluated clinical data including laterality, etiology, disease descriptors, and best-corrected visual acuity (VA) up to 1 year before the onset (± 30 days), at the time of diagnosis, and at one year following diagnosis (± 30 days).

MAIN OUTCOME MEASURES

Case frequencies, etiology, and vision outcomes in patients diagnosed with corneal opacity.

RESULTS

We identified 5,220,382 patients who were diagnosed with corneal opacity and scars using H17 (ICD-10) and 371.0 (ICD-9) codes over seven years. The case frequency of corneal opacity during the study period was 6,535 cases per 100,000 patients (6.5%). The mean age of the patients was 63.36±18.14 years and the majority were female (57.6%). In the cohort, 38.39% and 30.00% of patients had bilateral and unilateral corneal opacity, respectively. Most of the patients were White (69.13%), followed by Black or African American (6.84%), Asian (2.45%), American Indian or Alaska Native(0.34%), Native Hawaii or other Pacific Islander(0.19%). Among the patients with corneal opacity, 7.34% had Hispanic or Latino ethnicity. The primary etiologies associated with corneal opacity included corneal dystrophies (64.66%) followed by edema (18.25%), ulcer (7.78%), keratoconjunctivitis (7.18%), degeneration (5.62%), neovascularization (6.27%), and trauma (5.28%). Visual acuity of the patients significantly worsened due to corneal opacity (0.46±0.74 logMAR; ∼20/58 in Snellen) and did not improve to the baseline (0.37±0.68 logMAR, ∼20/46 in Snellen) post-management (0.43±0.77 logMAR, ∼20/54 in Snellen). The multiple linear regression analysis showed worse vision outcomes in females (compared to males), and Asian, Black or African American, and American Indian or Alaska Native (compared to White) patients. Additionally, worse vision outcomes were observed in patients with opacity associated with corneal malformation, degenerative disorders, edema, injury, and ulcer compared to those with hereditary corneal dystrophy.

CONCLUSIONS

Our study shows that the corneal opacity was diagnosed in 6.5% of the patients in the IRIS Registry and it was primarily associated with corneal dystrophies. The final vision outcomes in corneal opacity patients were significantly worse compared to baseline. The worse vision outcomes were associated with sociodemographic differences that might be associated with disparities in access, utilization, and care patterns.

Efficacy and safety of Brolucizumab for neovascular age-related macular degeneration: a systematic review and meta-analysis

Background

To evaluate the efficacy and safety of Brolucizumab for neovascular age-related macular degeneration (n-AMD) through a systematic review and meta-analysis.

Materials and Methods

Cochrane, PubMed, Embase, and Web of Science databases were comprehensively searched for relevant studies. Stata and RevMan5.4 were applied for meta-analysis and risk of bias assessment. Data on the best-corrected visual acuity (BCVA), central subfield thickness (CSFT), presence of intraretinal fluid (IRF) and/or subretinal fluid (SRF), participants with ≥1 serious adverse events, and participants with ≥1 adverse events were analyzed.

Results

Six studies were finally included. Meta-analysis showed statistical differences in BCVA [SMD = -0.65, 95% CI [-0.17 to -0.23], P < 0.05], the presence of IRF and/or SRF [RR = 0.67, 95% CI [0.56-0.79], P < 0.05], and the safety of participants with ≥1 serious adverse events [RR = 0.57, 95% CI [0.39-0.84], P < 0.05] between the experimental group and the control group. However, no statistical differences were observed in CSFT [SMD = -1.16, 95% CI [-2.79 to 0.47], P > 0.05] or the safety of participants with ≥1 adverse events [RR = 1.07, 95% CI [0.97-1.17], P > 0.05].

Conclusions

Compared to other anti-VEGF drugs such as Aflibercept and Ranibizumab, intravitreal injection of 6 mg Brolucizumab is more effective and safer for n-AMD, especially in the presence of IRF and/or SRF, and for participants with ≥1 serious adverse events.

Systemic Arterial and Venous Thrombotic Events Associated With Anti-Vascular Endothelial Growth Factor Injections: A Meta-Analysis

PURPOSE

To compare the risk of systemic arteriovenous thrombotic events between intravitreal anti-vascular endothelial growth factor (anti-VEGF) and sham injections.

DESIGN

Random-effects meta-analysis.

METHODS

A systematic search was performed on OVID MEDLINE, Embase, and Cochrane Library from January 2005 to August 2023. Our inclusion criteria were randomized controlled trials (RCTs) reporting on systemic arteriovenous events for standard dose intravitreal anti-VEGF agents for any indication.

RESULTS

A total of 20 RCTs reporting on 12,833 eyes were included. There was no significant difference in the risk of any thrombotic event between bevacizumab 1.25 mg and ranibizumab 0.5 mg (Risk ratio (RR) = 0.96, 95% CI = 0.52-1.75, P = .89). There was no significant difference between bevacizumab and ranibizumab when restricting to arterial thrombotic events (RR= 0.88, 95% CI = 0.60-1.30, P = .53) or venous thrombotic events (RR = 1.99, 95% CI =86 0.68-5.82], P = .21). The risk of arterial thrombotic events was similar between aflibercept and bevacizumab (RR = 1.11, 95% CI = 0.60-2.07, P = .74), between aflibercept and ranibizumab (RR= 0.77, 95% CI = 0.49-1.21, P = .26), between brolucizumab and aflibercept (RR= 0.67, 95% CI = 0.32-1.38, P = .27), and between aflibercept and faricimab (RR = 0.96, 95% CI = 0.43-2.17, P = .93). Compared to sham, neither dose of ranibizumab (0.5 mg or 0.3 mg) showed a higher risk of arterial thrombotic events.

CONCLUSIONS

There was a similar risk of systemic arteriovenous thrombotic adverse events between anti-VEGF agents and between ranibizumab and sham injections.

Real-world evidence for brolucizumab efficacy in age-related macular degeneration and central serous chorioretinopathy patients

Real-world studies concerning different populations are valuable and bring new information regarding different regimens of Brolucizumab injections and their adverse reactions. The present study investigates the efficacy of a pro-re-nata regimen (PRN) for neovascular Age-related Macular Degeneration (nAMD). Separate from the main statistics we report the use of Brolucizumab in central serous chorioretinopathy (CSC). A retrospective observational single-center study was conducted on 82 eyes treated with Brolucizumab between 2021 and 2023, for nAMD. Patients were injected at intervals of at least 2 months after the loading phase. In 9 (3-20) months follow-up, only 0.26 % adverse reactions were noticed, with good resolution of retinal fluid (significant reduction of CST on SD-OCT, -72.50μ, p < 0.05), especially for subretinal fluid. 54 % of the eyes remained fluid-free. The interval of injection (INTOI, a parameter calculated by averaging the results of the division of the follow-up period to the number of injections received by each patient) was 2.68 (corresponding to an injection interval of 11 weeks). This could become an important parameter for the characterization of Brolucizumab and any other anti-VEGF therapy and could provide a more precise interval of injection in the future. Four patients also received Brolucizumab for the treatment of chronic CSC (3 doses each). All showed good response, 3 of them remaining fluid-free.

Long-term efficacy and safety of brolucizumab in neovascular age-related macular degeneration: A multicentre retrospective real-world study

PURPOSE

To investigate the long-term efficacy and safety of intravitreal brolucizumab (BRZ) injections in patients with typical neovascular age-related macular degeneration (typical nAMD) and polypoidal choroidal vasculopathy (PCV).

METHODS

This multicentre retrospective study included 401 eyes of 398 patients with nAMD who received BRZ injection(s), with a follow-up duration of ≥12 months. Changes in best-corrected visual acuity (BCVA), retinal fluid evaluation and central subfield thickness (CST) on optical coherence tomography were assessed. The efficacy of BRZ was compared between typical nAMD and PCV groups.

RESULTS

Analyses were conducted with 280 eyes of 278 patients with typical nAMD and 121 eyes of 120 patients with PCV (mean age, 71.1 ± 8.6 years). 29 eyes (7.2%) were treatment naïve. The mean follow-up period was 15.3 ± 2.8 months; the mean number of BRZ injections within 1 year was 4.5 ± 1.7. BCVA was maintained during the follow-up period, and CST significantly improved from the first injection month and was maintained for 12 months in both the typical nAMD and PCV groups. The dry macula proportion increased from 2.7% at baseline to 56.1% at 1 month and 42.9% at 12 months. Among the 18 eyes that underwent indocyanine green angiography both before and after treatment, 10 (55.6%) showed polyp regression. Overall, the incidence of intraocular inflammation (IOI), retinal vasculitis and occlusive retinal vasculitis was 9.4% (38 eyes), 1.2% (5 eyes) and 0.5% (2 eyes), respectively. IOI occurred from the first to the sixth injections, with an average IOI onset of 28.5 ± 1.4 days. All eyes achieved IOI resolution, although the two eyes with occlusive retinal vasculitis showed a severe visual decline after IOI resolution.

CONCLUSION

Brolucizumab was effective in maintaining BCVA and managing fluid in eyes with nAMD for up to 1 year, exhibiting a high polyp regression rate. However, the not uncommon incidence of IOI and the severe visual decline caused by the rare occlusive retinal vasculitis following BRZ treatment underscore the importance of careful monitoring and timely management.

Real-World Safety Outcomes with Brolucizumab in Neovascular Age-Related Macular Degeneration: Findings from the IRIS® Registry

INTRODUCTION

To assess real-world safety outcomes for adults with neovascular age-related macular degeneration (nAMD) treated with brolucizumab from the US-based IRIS® (Intelligent Research in Sight) Registry.

METHODS

In this retrospective study, 18,312 eyes (15,998 patients) treated with ≥ 1 intravitreal brolucizumab injections between 8 October 2019 (US launch date for brolucizumab) and 7 October 2021 were followed up for ≤ 2 years after first injection (index date). The study assessed the predefined incident ocular adverse events of intraocular inflammation (IOI), retinal vasculitis (RV), and retinal vascular occlusion (RO).

RESULTS

Overall, 614/18,312 eyes (3.4%) experienced any IOI, RV, and/or RO event. Median (interquartile range [IQR]) time to an event was 84 (42-167) days; 77.4% of events (475/614) occurred within 6 months after index date. Median (IQR) number of brolucizumab injections before an event was 2 (1-4). For eyes with an adverse event and visual acuity (VA) data (n = 406), median (IQR) change in Early Treatment of Diabetic Retinopathy Study (ETDRS) letters from pre-event VA was 0 (- 7 to + 5) at the 6-month follow-up; 50 eyes (12.3%) had a VA loss of 10 or more ETDRS letters. Risk of an event (hazard ratio [95% confidence interval]) was decreased in eyes from male patients (0.61 [0.53-0.71]), from older patients (0.83 [0.76-0.90]), from treatment-naive patients (0.51 [0.38-0.69]), and from patients who started brolucizumab in the second year after launch (0.68 [0.53-0.86] vs. first year).

CONCLUSION

In this large real-world brolucizumab safety study, 3.4% of eyes experienced an IOI, RV, and/or RO event. Among eyes that experienced an adverse event for which VA data were available, median ETDRS vision change was 0 letters (IQR - 7 to + 5).

Visual outcomes of intraocular inflammation after brolucizumab injection in Japanese patients with neovascular age-related macular degeneration

PURPOSE

This study investigates the visual outcomes of neovascular age-related macular degeneration (nAMD) patients who developed intraocular inflammation (IOI) after intravitreal brolucizumab injection (IVBr).

METHODS

We studied 285 eyes of 279 cases diagnosed with nAMD and focused on 18 eyes (6.3%) of 17 cases which developed IOI after IVBr. IVBr was performed either on the initial treatment or for switching of other anti-vascular endothelial growth factor agents during January 2020 to December 2021. We evaluated clinical features and the course of treatment of a 6-month follow-up after IOI occurred.

RESULTS

Of 17 cases, 9 cases were male, 8 cases were female. Baseline logarithm of the minimum angle of resolution(logMAR) best-corrected visual acuity (BCVA) was 0.36, BCVA before IOI occurred was 0.30, and BCVA when IOI occurred was 0.43. 16 eyes (88.9%) had symptoms such as visual loss or floaters when IOI occurred. On the other hand, the remaining 2 eyes (11.1%) had no symptoms. 11 eyes (61.1%) had only IOI, while the remaining 7 eyes (38.9%) had IOI and perivascular sheathing. Steroid sub-tenon injection was performed on 1 eye (5.6%), steroid eye drops were used in 11 eyes (61.1%), and 6 eyes (33.3%) were followed-up without treatment. Neovascular AMD recurred in 16 eyes (88.9%) after IOI occurred and were treated with aflibercept. VA at 3 and 6 months after IOI occurred were significantly improved to 0.34 and 0.30, respectively (P = 0.09 at 3 months and P = 0.02 at 6 months). The symptoms of patients were improved in all cases. We were able to stop steroid treatment in all cases.

CONCLUSIONS

IOI occurred in 6.3% of nAMD patients after IVBr treatment. All of which showed significant improvement from logMAR of 0.43 to 0.30 with steroid treatment or without any treatment. We should consider the possibility of IOI after IVBr as a complication, however, they have a relatively good prognosis if treated at an early stage.

Evaluating photodynamic therapy versus brolucizumab as a second-line treatment for polypoidal choroidal vasculopathy

BACKGROUND

To compare the one-year outcomes between intravitreal brolucizumab (IVBr) monotherapy and photodynamic therapy (PDT) as a second-line treatment in patients with polypoidal choroidal vasculopathy (PCV) who did not respond to first-line therapy.

METHODS

This case-control study included eyes with PCV that do not respond to aflibercept or ranibizumab. The patients were retrospectively registered. We compared outcomes, including best-corrected visual acuity (BCVA), anatomical results, and the need for additional treatments, between IVBr and a combination therapy using PDT as second-line treatments for refractory PCV, after adjusting for potential confounders. We analyzed E-values to evaluate the robustness of the results against unmeasured confounders.

RESULTS

Twenty-two eyes received IVBr, and twenty-four underwent PDT. No apparent differences were observed in BCVA and central macular thickness (CMT) changes from baseline between the groups (IVBr vs. PDT: BCVA, 0.01 ± 0.47 logMAR vs. 0.04 ± 0.18 logMAR, P-value = 0.756; CMT: - 36.3 ± 99.4 μm vs. - 114.7 ± 181.4 μm, P-value = 0.146). Only in the PDT group, five eyes (20.8%) did not require additional treatment after the second-line treatment, the adjusted odds ratio indicating no further treatment needed was 11.98 (95% confidence interval: 1.42-2070.07, P-value = 0.019). The E-value for the adjusted odds ratio was 23.44.

CONCLUSIONS

Both second-line treatments for PCV exhibited similar visual and anatomical outcomes. Only in the PDT-treated eyes were there some patients who did not require further treatment after second-line therapy.

Perspectives on the currently available pharmacotherapy for wet macular degeneration

INTRODUCTION

Wet age-related macular degeneration (w-AMD) is a leading cause of visual impairment globally, with its prevalence expected to rise alongside increasing life expectancy. The current standard treatment involves frequent intravitreal injections of anti-VEGF agents, which although revolutionary, pose significant burdens on both patients and healthcare services.

AREAS COVERED

This review explores current and emerging pharmaceutical treatments for w-AMD, focusing on their pharmacokinetics, pharmacodynamics, efficacy, and safety. Promising developments include extending treatment intervals with newer anti-VEGF agents like brolucizumab and faricimab, biosimilars offering cost-effective options, and exploring innovative drug delivery methods such as subretinal gene therapy. Combination therapies, gene therapies, and novel agents like KSI-301 and OPT-302 show potential for improving treatment outcomes and reducing treatment burden.

EXPERT OPINION

While current treatments for w-AMD have significantly advanced with the advent of anti-VEGF therapies, their limitations in terms of treatment burden and incomplete responses have spurred research into diverse alternative approaches. These innovative strategies offer hope for improving patient outcomes and reducing healthcare burdens, suggesting a promising future for w-AMD management.

INCIDENCE AND RISK FACTORS OF INTRAOCULAR INFLAMMATION AFTER BROLUCIZUMAB TREATMENT IN JAPAN: A Multicenter Age-Related Macular Degeneration Study

PURPOSE

To investigate the incidence of intraocular inflammation (IOI) and its risk factors following intravitreal injections of brolucizumab for neovascular age-related macular degeneration in Japan.

METHODS

A total of 1,351 Japanese consecutive patients with neovascular age-related macular degeneration who were treated with brolucizumab from May 2020 to May 2022 at 14 institutions were examined. The variables analyzed were the number of brolucizumab injections, time to onset of IOI, and risk factors.

RESULTS

Intraocular inflammation developed in 152 eyes (11.3%). Retinal vasculitis and/or retinal occlusion occurred in 53 eyes (3.9%). Ninety-four patients received bilaterally, bilateral IOI occurred in five patients (5.3%). Sixteen eyes (1.2%) had irreversible visual acuity loss and nine eyes (0.67%) had visual loss of three lines or more due to retinal vasculitis and/or retinal occlusion. The cumulative IOI incidence was 4.5%, 10.3%, and 12.2% at 30, 180, and 365 days (1-year), respectively. History of IOI (including retinal vasculitis) and/or retinal occlusion (odds ratio [OR], 5.41; P = 0.0075) and female sex (OR, 1.99; P = 0.0004) were significantly associated with IOI onset.

CONCLUSION

The 1-year cumulative incidence of IOI in Japanese neovascular age-related macular degeneration patients treated with brolucizumab was 12.2%. History of IOI (including retinal vasculitis) and/or retinal occlusion and female sex were significant risk factors.

Comparison of functional and morphologic changes between brolucizumab and faricimab in neovascular age-related macular degeneration

PURPOSE

This study aimed to compare functional and morphologic changes in the loading phase between patients with treatment-naïve macular neovascularization (MNV) due to neovascular age-related macular degeneration (nAMD) treated with either intravitreal brolucizumab (IVBr) or intravitreal faricimab (IVF) injections in a clinical setting.

METHODS

We retrospectively studied 92 consecutive eyes of 90 patients with neovascular nAMD who were scheduled to receive IVBr (42 eyes of 41 patients) or IVF (50 eyes of 49 patients) injections between October 2021 and December 2022. All patients received three consecutive monthly injections of 6.0 mg/0.05 mL brolucizumab or 6.0 mg/0.05 mL faricimab. The best-corrected visual acuity (BCVA), central foveal thickness (CFT), and central choroidal thickness (CCT) at baseline and 1, 2, and 4 months after the initial treatment were measured and compared between the groups.

RESULTS

Thirty-seven eyes in IVBr group and forty-seven eyes in IVF group who finished treatments in the loading phase were assessed at the follow-up examination. The BCVA, CFT, and CCT changed significantly after loading phase in both groups (P < 0.05 for both comparisons). The IVBr group had more rapid improvement of the BCVA (P = 0.037) at 1 month than the IVF group, but there was no difference at 4 months (P = 0.367). The CFT and CCT decreases tended to be greater in the IVBr group than in the IVF group throughout the follow-up period. Of the five eyes excluded from the IVBr group, one eye (2.4%) each had intraocular inflammation (IOI) and was a non-responder, and two eyes (4.8%) had retinal pigment epithelial tears after treatment. Of the three eyes excluded from the IVF group, two eyes (4.0%) did not respond to the treatment.

CONCLUSIONS

Both IVBr and IVF injections were well-tolerated and improved the VA in treatment-naïve patients with MNV due to nAMD after a loading phase, although IVBr caused a trend toward faster visual improvements in the BCVA. The IVBr group also had greater reductions of the CFT and CCT than the IVF group. However, the potential for adverse events and no response to treatment with each drug are considerations.

Factors Associated With Intraocular Inflammation in Neovascular Age-Related Macular Degeneration Patients Treated With Brolucizumab

Purpose

To identify factors associated with intraocular inflammation (IOI) in patients with neovascular age-related macular degeneration (nAMD) treated with brolucizumab.

Methods

In this prospective observational study, we collected aqueous humor samples from 96 eyes of 96 patients receiving treatment with brolucizumab; IOI subsequently developed in 19 eyes of 19 patients. To identify cytokines upregulated in eyes with subsequent development of IOI, we compared the aqueous humor cytokine levels between the IOI and non-IOI groups. We also collected plasma from 20 patients who developed IOI and 20 age- and sex-matched controls to identify differences in plasma biomarkers and the subfraction of CD4+ cells. Using stepwise variable selection and multivariate binary regression analysis, we developed an algorithm that accurately assessed the likelihood of IOI occurrence.

Results

The IOI group showed elevated aqueous humor levels of P-selectin (584 vs. 324 pg/mL, P = 0.013), TNF-α (0.89 vs. 0.60 pg/mL, P = 0.018), and IL-1α (2.0 vs. 1.4 pg/mL, P = 0.035) compared with the non-IOI group. Serum MMP-9 concentrations were higher in the IOI group than the non-IOI group (18,310 vs. 13,450 pg/mL, P = 0.029). Furthermore, the percentage of Th2 cells was significantly decreased in the IOI compared with the non-IOI group (3.1% vs. 4.2%, P = 0.013). The receiver operating characteristic curves for the optimal models showed an area under the curve ranging from 0.71 to 0.89, indicating good performance.

Conclusions

The combination of elevated concentrations of multiple aqueous humor cytokines and of serum MMP-9 and a lower number of plasma Th2 cells is associated with brolucizumab-related IOI in patients with nAMD.

Imaging Features of Retinal Vasculitis and/or Retinal Vascular Occlusion after Brolucizumab Treatment in the Postmarketing Setting

Purpose

The aim of this analysis was to characterize the spectrum of inflammatory changes arising from brolucizumab use in routine clinical practice.

Design

Retrospective analysis of fluorescein angiography (FA), fundus photography (FP) and OCT images taken at the time of adverse event.

Subjects

Brolucizumab-treated patients with neovascular age-related macular degeneration with retinal vasculitis (RV) and/or retinal vascular occlusion (RO) reported to Novartis Patient Safety between February 2020 and January 2021.

Methods

Ocular images were reviewed by an external reading center using predefined grading lists for FA, FP, and OCT.

Main Outcome Measures

Classification of images, the most common imaging features of RV and/or RO by each imaging modality, and the anatomical location of the adverse event in relation to the macula.

Results

Gradable images (N = 475; 222 eyes; 198 patients) were classified as RV only (n = 72); RO only (n = 9), RV + RO (n = 63); posterior segment intraocular inflammation (n = 31); or none by imaging (n = 47). Of the 144 eyes with RV and/or RO, the most common imaging features were vascular leakage on FA, perivascular sheathing on FP, and hyperreflective dots in the vitreous humor on OCT. Retinal vascular occlusion was mainly branched and arterial, affecting multiple vessels.

Conclusions

Although no distinct inflammatory phenotype pathognomonic to brolucizumab-related inflammation was identified, this study increases our understanding of the spectrum of posterior segment inflammatory changes that may occur in brolucizumab-treated neovascular age-related macular degeneration patients, highlighting the potential value of widefield retinal imaging and angiography to detect these inflammatory adverse events.

Financial Disclosures

Proprietary or commercial disclosure may be found after the references.

Gains in the current understanding of managing neovascular AMD with brolucizumab

BACKGROUND

Unresolved retinal fluid and high injection burden are major challenges for patients with neovascular age-related macular degeneration. Brolucizumab addresses these challenges by providing robust vision gains and superior fluid resolution, with the potential for longer treatment intervals. Brolucizumab has been associated with adverse events of retinal vasculitis and retinal vascular occlusion typically in the presence of intraocular inflammation (IOI). To define the incidence of the adverse events, Novartis convened an external safety review committee, which found a rate of 4.6% for definite or probable IOI, 3.3% for retinal vasculitis, and 2.1% for retinal vascular occlusion in the HAWK and HARRIER trials. Novartis also established a coalition to explore 4 areas regarding the adverse events: root cause, patient characterization, event mitigation and vigilance, and treatment protocols for the adverse events. Based on the coalition findings, a risk mitigation framework was developed. Prior to initiating treatment with brolucizumab, it is important to weigh the potential benefit against risk of adverse events and to consider patient risk factors such as prior history of IOI and/or retinal vascular occlusion. To mitigate the potential for IOI-related adverse events, it is important to conduct a thorough dilated eye examination before each injection and closely monitor patients throughout treatment. Patients should be educated on symptoms of IOI to monitor for. Brolucizumab should not be injected in the presence of active IOI. If an adverse event is identified, prompt and intensive treatment should be considered.

CONCLUSION

Progress has been made in understanding how to mitigate IOI-related adverse events following treatment with brolucizumab.

One-Year and 18-Month Outcomes in nAMD Patient Eyes Switched to Brolucizumab Alone versus to Brolucizumab Alternating with Other Anti-VEGF Agents

Objective

Retrospective, real-world study to evaluate visual acuity (VA), anti-vascular endothelial growth factor (anti-VEGF) injection intervals, and central macular thickness (CMT) in neovascular age-related macular degeneration (nAMD) eyes switched to brolucizumab only or to brolucizumab alternating with another anti-VEGF.

Methods

The overall study population comprised eyes that were given ≥1 brolucizumab injection between 1 October 2019 and 30 November 2021. The brolucizumab-only (BRO) cohort consisted of prior anti-VEGF-treated eyes treated exclusively with ≥3 brolucizumab injections over ≥12 or ≥18 months; the alternating brolucizumab (ALT) cohort comprised prior anti-VEGF-treated eyes treated with ≥2 brolucizumab injections and ≥1 other anti-VEGF over ≥12 or ≥18 months.

Results

A total of 482 eyes received ≥1 brolucizumab injection during the study period. Mean VA changes from baseline were -1.1±15.1 letters (BRO cohort; n = 174) and 1.3±13.0 letters (ALT cohort; n = 47) at Month 12, and 0.0±13.5 letters (BRO cohort; n = 95) and -7.3±17.2 letters (ALT cohort; n = 29) at Month 18. Mean changes in injection intervals were +26.9±48.1 days (BRO cohort) and +11.1±17.3 days (ALT cohort) at Month 12 and +36.3±52.3 days (BRO cohort) and +14.0±19.9 days (ALT cohort) at Month 18. Mean changes in CMT were -35.2±108.1 μm (BRO cohort) and -31.5±91.2 μm (ALT cohort) at Month 12 and -38.9±75.0 μm (BRO cohort) and -9.0±59.9 μm (ALT cohort) at Month 18. Intraocular inflammation-related adverse events were recorded in 22/482 (4.6%) eyes.

Conclusion

Treatment with either brolucizumab alone or brolucizumab alternating with another anti-VEGF can preserve vision, reduce CMT, and extend anti-VEGF injection intervals in patients with nAMD.

Detection and Management of Intraocular Inflammation after Brolucizumab Treatment for Neovascular Age-Related Macular Degeneration

PURPOSE

To present interim descriptive insights from the OCTOPUS and SWIFT studies on incidence, clinical features, management, and outcomes of intraocular inflammation (IOI), vasculitis, and occlusive vasculitis with brolucizumab treatment (Beovu, Novartis) in patients with neovascular age-related macular degeneration (nAMD) who were anti-VEGF naive or pretreated with anti-VEGFs (ranibizumab or aflibercept).

DESIGN

OCTOPUS (NCT04239027) and SWIFT (NCT04264819) studies are prospective phase IIIb single-arm, open-label, multicenter studies assessing brolucizumab.

SUBJECTS

Anti-VEGF naive (OCTOPUS) and pretreated (SWIFT) patients with nAMD.

METHODS

Interim prespecified analysis on the efficacy end point provided an opportunity to analyze IOI-related safety. Reports of IOI-related adverse events (AEs) were reviewed, and AE images and clinical features and outcomes of each case were analyzed by a review committee.

RESULTS

Of 505 brolucizumab-treated eyes/patients with median brolucizumab treatment of 8.8 months, 53 eyes demonstrated at least 1 IOI-related AE. The incidence of overall IOI-related AEs was 10.5%; among these events, the incidence was 7.1% for IOI only without retinal involvement and 3.4% for IOI with retinal involvement (2.0% with vasculitis, 1.4% with vascular occlusion with or without vasculitis). Incidence was similar in naive and pretreated patients. Before the onset of the first IOI-related AE, eyes received a median of 2 brolucizumab injections; 81.1% of IOI-related AEs occurred during the loading phase (median, 25.0 days from the last brolucizumab injection). At AE onset, most frequently reported symptoms were floaters (52.8%) and blurred or decreased vision (37.8%). Of the 86.8% of AEs that were treated, most were treated with topical corticosteroids (75.5%), 28.3% by systemic corticosteroids, and 26.8% by intraocular corticosteroids. No severe vision loss was reported for the 7 nontreated AEs. Overall, the median best-corrected visual acuity (BCVA) change at IOI-related AEs resolution from baseline was 1 letter (range, -74 to +32 letters), and 2 patients with occlusive vasculitis had BCVA loss ≥ 15 letters due to IOI-related AEs. All eyes permanently discontinued brolucizumab after the first IOI-related AE.

CONCLUSIONS

This analysis highlights the need for monitoring and education of patients to report any signs of IOI-related events immediately when being treated with brolucizumab. IOI should be treated promptly and intensely with corticosteroids.

FINANCIAL DISCLOSURE(S)

Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.

INTRAOCULAR INFLAMMATION INCIDENCE AFTER INTRAVITREAL BROLUCIZUMAB INJECTION FOR EXUDATIVE AGE-RELATED MACULAR DEGENERATION

PURPOSE

We evaluated the clinical outcomes of intraocular inflammation (IOI) of eyes with neovascular age-related macular degeneration (AMD) injected with brolucizumab in our tertiary referral center.

METHODS

A retrospective case series for which clinical records of all eyes that received intravitreal brolucizumab at Bascom Palmer Eye Institute between December 1, 2019, and April 1, 2021, were reviewed.

RESULTS

There were 345 eyes of 278 patients who received 801 brolucizumab injections. IOI was detected in 16 eyes of 13 patients (4.6%). In those patients, baseline Logarithm of Minimu Angle of Resolution (logMAR) best-corrected visual acuity was 0.32 0.2 (20/42), while it was 0.58 0.3 (20/76) at IOI presentation. The mean number of injections among eyes experiencing IOI was 2.4, and the interval between the last brolucizumab injection and IOI presentation was 20 days. There was no known case of retinal vasculitis. Management of IOI included topical steroids in seven eyes (54%), topical and systemic steroids in five eyes (38%), and observation in one eye (8%). Best-corrected visual acuity returned to baseline and inflammation resolved in all eyes by the last follow-up examination.

CONCLUSION

Intraocular inflammation after brolucizumab injection for neovascular AMD was not uncommon. Inflammation resolved in all eyes by the last follow-up visit.

Real-World Frequency and Management of Ocular Adverse Events in Eyes with Neovascular Age-Related Macular Degeneration Treated with Brolucizumab

INTRODUCTION

Intraocular inflammation (IOI)-related adverse events (AEs) that may result in severe vision loss have been associated with the anti-vascular endothelial growth factor brolucizumab. In this study, we investigate the timing, management and resolution of IOI-related AEs in a large cohort of patients treated with at least one injection of brolucizumab in routine clinical practice.

METHODS

Retrospective review of medical records from patients with neovascular age-related macular degeneration treated with ≥ 1 brolucizumab injection between October 2019 and November 2021 at the Retina Associates of Cleveland, Inc. clinics.

RESULTS

Of the 482 eyes included in the study, IOI-related AEs occurred in 22 (4.6%) eyes. Four (0.8%) eyes developed retinal vasculitis (RV) and of these, 2 (0.4%) had concomitant retinal vascular occlusion (RO). Most eyes [14/22 (64%)] developed the AE within 3 months and 4/22 (18%) within 3-6 months of the first brolucizumab injection. The median [interquartile range (IQR)] time from the last brolucizumab injection to development of the IOI-related AE was 13 (4-34) days. At the time of event, 3 (0.6%) eyes with IOI (no RV/RO) developed severe vision loss of ≥ 30 ETDRS letters, and a further 5 (1.0%) eyes (1 with IOI + RV, 1 with IOI + RV + RO) developed moderate vision loss of ≥ 15 letters compared with their last visual acuity (VA) prior to the AE. The median (IQR) vision loss was -6.8 (-19.9, -0.0) letters. Taking the best VA at either 3 or 6 months after AE resolution (or stability for occlusive events), VA decreased by ≥ 5 letters compared with prior to the AE in 3 (14%) of the 22 affected eyes, and was preserved (< 5-letter loss) in 18 (82%) eyes.

CONCLUSIONS

In this real-world study, most IOI-related AEs occurred early after brolucizumab treatment initiation. With appropriate monitoring and management of IOI-related AEs, vision loss associated with brolucizumab may be limited.

Faricimab in neovascular AMD: first report of real-world outcomes in an independent retina clinic

PURPOSE

Assess short-term real-world outcomes in neovascular aged-related macular degeneration (nAMD) treated with novel faricimab.

METHODS

Retrospective case series of nine patients with nAMD (11 eyes) treated with faricimab between May and November 2022. Treatment-naïve patients and non-naïve patients underwent logMAR best corrected visual acuity (BCVA), optical coherence tomography (OCT) DRI OCT-1 Triton (Topcon Corp, Tokyo, Japan), ultra-widefield (UWF) and fundus autofluorescence (FAF) (California Optomap, Optos plc, Dunfermline, Scotland, UK). Previous treatment intervals, number of intravitreal injections, sub/intra retinal fluid (SRF/IRF), central retinal thickness (CRT) and presence/changes in pigment epithelial detachments (PEDs) were recorded.

RESULTS

Mean baseline BCVA and CRT values of patients who switched from other agents were 0.612 ± 0.75 logMAR and 256.16 ± 12.98 µm respectively, with a mean 36-day previous treatment interval. The median number of other previous anti-VEGF intravitreal injections was 8. Mean BCVA at one month significantly improved to 0.387 ± 0.54 logMAR, as well as CRT values which decreased to 245.43 ± 15.34 µm. In the 3 naïve patients, mean baseline BVCA and CRT values were 0.33 ± 0.29 and 874.67 ± 510.86 µm, respectively. At one month follow-up, mean BCVA improved to 0.30 ± 0.29 logMAR and mean CRT was 536.04 ± 36.15 µm. Overall, a significant improvement in BCVA of 0.21 ± 41 logMAR and 238.44 ± 114.9 µm was achieved at one month after the first faricimab intravitreal injection. In addition, a complete resolution of SRF was observed in 6 out of 8 eyes (75%) and of IRF in 2 out of 3 eyes (66.67%), respectively. Drusenoid PED morphology changes were observed in all patients and no drug-related adverse events were observed.

CONCLUSION

Real-world outcomes showed improvement in BCVA and anatomic parameters at an early timepoint, demonstrating the efficacy and durability of faricimab in nAMD patients. Larger numbers of patients and longer follow-up are needed to determine whether the loading dose is required in all, what percentage of patients experience an improvement, and whether improvement it is maintained.

Efficacy, Safety, and Durability of Brolucizumab: An 8-Month Post-Marketing Surveillance Analysis

Importance

Brolucizumab (Beovu®) is an anti-vascular endothelial growth factor (anti-VEGF) agent approved for the treatment of neovascular age-related macular degeneration (nvAMD). Brolucizumab was marketed for its noninferiority to aflibercept and its potential for greater durability. However, post-marketing utilization has been tempered by safety concerns.

Objective

We evaluate the visual and anatomic efficacy of brolucizumab, examine changes in treatment intervals after switching to brolucizumab, and estimate the incidence of drug-related adverse events in the real world.

Design Setting and Participants

This was a retrospective consecutive case series of 626 eyes (543 patients) with nvAMD treated with 1438 brolucizumab injections at a single retina practice between 10/1/2019 and 5/15/2020.

Main Outcomes and Measures

Changes in visual acuity (VA); anatomic outcomes assessed by optical coherence tomography (OCT) including central subfield thickness (CST), macular volume (MV), presence of intraretinal fluid (IRF), subretinal fluid (SRF), and serous pigment epithelial detachment (sPED) on foveal line scans; treatment intervals before and after receiving brolucizumab; and the incidence of brolucizumab-related adverse events.

Results

The majority of eyes (N = 531, 89.7%) had received prior anti-VEGF therapy with aflibercept, ranibizumab, and/or bevacizumab. VA improved in treatment-naïve eyes (+3.7 letters, p = 0.04), and was maintained in previously treated eyes. There were significant improvements in all anatomic outcomes in both groups (p < 0.001). We observed a 4.8% incidence of intraocular inflammation (IOI) and a 0.6% incidence of retinal vasculitis. The average treatment interval increased from 6.3 to 6.8 weeks (p = 0.001).

Conclusions and Relevance

Brolucizumab treatment was associated with VA improvement in naïve eyes and maintenance of VA in previously treated eyes. Switching to brolucizumab was associated with improved anatomic outcomes and extended treatment intervals in most eyes. We observed a similar incidence of IOI and a lower incidence of retinal vasculitis compared to the Safety Review Committee's analysis of HAWK and HARRIER.

One-Year Brolucizumab Outcomes in Neovascular Age-Related Macular Degeneration from a Large United States Cohort in the IRIS® Registry

PURPOSE

To evaluate visual acuity (VA) and injection intervals in patients with neovascular age-related macular degeneration (nAMD) after 12 months of brolucizumab therapy in clinical practice.

DESIGN

Retrospective cohort study.

PARTICIPANTS

Adults in the United States-based IRIS® Registry (Intelligent Research in Sight) with nAMD who received brolucizumab exclusively for 12 months (2308 eyes of 2079 patients).

METHODS

Observational study of eyes with a first injection of brolucizumab (index), followed by 2 or more brolucizumab injections over the following 12 months without switching to another anti-vascular endothelial growth factor (VEGF) agent.

MAIN OUTCOME MEASURES

Primary outcomes were change in best recorded VA and, for eyes receiving prior anti-VEGF therapy (treatment-experienced eyes), the difference between the brolucizumab injection interval at 12 months and the anti-VEGF injection interval before switching. The interval before switching was defined as the time between the prior anti-VEGF and index brolucizumab injections; brolucizumab interval was the time between the closest injection to day 365 and the preceding injection. Secondary outcomes included incident adverse events.

RESULTS

Overall VA at index was 61.6 ± 18.4 Early Treatment Diabetic Retinopathy Study letters; 83.7% of treatment-naive eyes (184/220) and 86.1% of treatment-experienced eyes (1797/2088) showed stable (< 10 letters gained or lost) or improved (≥ 10 letters gained) VA at 12 months. Among treatment-experienced eyes receiving a prior anti-VEGF injection within 365 days before index, 29.5% (594/2015) showed an interval before switching of 8 weeks or more (mean, 7.6 ± 5.5 weeks), whereas 83.1% (1734/2015) showed a brolucizumab injection interval at 12 months of 8 weeks or more (mean, 10.3 ± 4.0 weeks). In all, 77.1% of treatment-experienced eyes (1554/2015) showed an interval extension of 1 week or more; of these, 55.4% (861/1554) showed an extension of 4 weeks or more.

CONCLUSIONS

In this community-based study, at 12 months, brolucizumab treatment prolonged the interval between anti-VEGF injections for most treatment-experienced eyes, particularly those with shorter intervals before switching, while maintaining or improving VA. With careful balancing of the benefits and risks, switching to brolucizumab treatment may offer the advantage of extending the treatment interval for patients with a high anti-VEGF therapy burden.

FINANCIAL DISCLOSURE(S)

Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.

Ophthalmology at the Forefront of Big Data Integration in Medicine: Insights from the IRIS Registry Database

Ophthalmology stands at the vanguard of incorporating big data into medicine, as exemplified by the integration of The Intelligent Research in Sight (IRIS) Registry. This synergy cultivates patient-centered care, demonstrates real world efficacy and safety data for new therapies, and facilitates comprehensive population health insights. By evaluating the creation and utilization of the world's largest specialty clinical data registry, we underscore the transformative capacity of data-driven medical paradigms, current shortcomings, and future directions. We aim to provide a scaffold for other specialties to adopt big data integration into medicine.

Clinical features and associated factors of intraocular inflammation following intravitreal brolucizumab as switching therapy for neovascular age-related macular degeneration

PURPOSE

The aim of this study is to explore the clinical features and associated factors of intraocular inflammation (IOI) following intravitreal brolucizumab (IVBr) administration for neovascular age-related macular degeneration (nAMD).

METHODS

This retrospective study included 87 eyes from 87 Japanese patients with nAMD who were followed up for 5 months after the initial administration of IVBr as switching therapy. Clinical pictures of IOI post-IVBr and changes in best corrected visual acuity (BCVA) at 5 months were evaluated between eyes with and without IOI (non-IOI). The association between IOI and baseline factors (age, sex, BCVA, hypertension, and/or arteriosclerotic changes in the fundus, subretinal hyperreflective material [SHRM], and macular atrophy) was evaluated.

RESULTS

Of the 87 eyes, 18 (20.6%) developed IOI and 2 (2.3%) developed retinal artery occlusion. There were 9 (50%) cases of posterior or pan-uveitis among eyes with IOI. The mean interval from initial IVBr administration to IOI was 2 months. The mean changes in logMAR BCVA at 5 months were significantly worse in IOI eyes than in non-IOI eyes (0.09 ± 0.22 vs. - 0.01 ± 0.15, P = 0.03). There were 8 (44.4%) and 7 (10.1%) cases of macular atrophy and 11 (61.1%) and 13 (18.8%) cases of SHRM in the IOI and non-IOI groups, respectively. SHRM and macular atrophy were significantly associated with IOI (P = 0.0008 and P = 0.002, respectively).

CONCLUSION

In IVBr therapy for nAMD, eyes with SHRM and/or macular atrophy should be observed more meticulously, given the increased risk of developing IOI, which is associated with insufficient BCVA gain.

Functional Outcomes of Brolucizumab-Induced Intraocular Inflammation Involving the Posterior Segment-A Meta-Analysis and Systematic Review

Early poor outcomes of intraocular inflammation (IOI) after intravitreal brolucizumab (IVB) have negatively affected the use of brolucizumab in clinical routine. We wished to identify factors related to the treatment details of IOI involving the posterior segment resulting from IVB for neovascular AMD (nAMD), if these were reported in detail. Articles were retrieved from PubMed, Scopus, ClinicalTrials, and CENTRAL using the following search terms: <Brolucizumab> AND <AMD> AND <intraocular inflammation>. The risk of bias was rated using the JBI Critical Appraisal Tool. We included 31 reports (41 patients and 46 eyes). Patients were 75.9 ± 8.5 years, and 58.5% were female. IOI occurred 41.7 ± 37.5 (median 37.0) days after treatment initiation with 2.0 ± 1.3 (1-6) IVB injections. A mean change in visual acuity of -14.6 ± 21.0 (median -6.5) letters was reported. The mean time from first IOI signs to the initiation of any anti-inflammatory treatment was 3.3 ± 6.2 days, with 63% of the patients receiving systemic corticosteroids as standard treatment. Finally, a period effect was observed, with a change in visual acuity of -25.3 ± 27.1 and -2.6 ± 7.3 letters in the chronologically first and last third, respectively, of treated eyes (effect size: r = 0.71; p = 0.006). Functional outcomes markedly improved with increasing experience in managing IOI.

RETINAL VASCULITIS OR VASCULAR OCCLUSION AFTER BROLUCIZUMAB FOR NEOVASCULAR AGE-RELATED MACULAR DEGENERATION: A Systematic Review of Real-World Evidence

PURPOSE

Retinal vasculitis or vascular occlusion (RV/RO) have been reported after brolucizumab for neovascular age-related macular degeneration. This systematic literature review evaluated RV/RO events after brolucizumab in real-world practice.

METHODS

Systematic literature searches identified 89 publications; 19 were included.

RESULTS

Publications described 63 patients (70 eyes) with an RV/RO event following brolucizumab. Mean age was 77.6 years and 77.8% of patients were women; 32 eyes (45.7%) received one brolucizumab injection before RV/RO. Mean (range) time to event from last brolucizumab injection was 19.4 (0-63) days, with 87.5% of events occurring within 30 days. Among eyes with preevent and postevent visual acuity (VA) assessments, 22/42 eyes (52.4%) showed unchanged (±0.08 logMAR) or improved vision from last recorded preevent assessment at latest follow-up, whereas 15/42 eyes (35.7%) showed ≥0.30 logMAR (≥15 letters) VA reduction. Patients with no VA loss were on average slightly younger and had a higher proportion of nonocclusive events.

CONCLUSION

Most RV/RO events reported after brolucizumab in early real-world practice occurred in women. Among eyes with VA measurements, approximately half experienced VA loss; overall, about one-third had VA reduction of ≥0.30 logMAR at latest follow-up, with indications of regional variations.

Anti-vascular endothelial growth factor for diabetic macular oedema: a network meta-analysis

Background

Diabetic macular oedema (DMO) is a common complication of diabetic retinopathy. Antiangiogenic therapy with anti-vascular endothelial growth factor (anti-VEGF) can reduce oedema, improve vision, and prevent further visual loss. These drugs have replaced laser photocoagulation as the standard of care for people with DMO. In the previous update of this review, we found moderate-quality evidence that, at 12 months, aflibercept was slightly more effective than ranibizumab and bevacizumab for improving vision in people with DMO, although the difference may have been clinically insignificant (less than 0.1 logarithm of the minimum angle of resolution (logMAR), or five Early Treatment Diabetic Retinopathy Study (ETDRS) letters, or one ETDRS line).

Objectives

The objective of this updated review was to compare the effectiveness and safety of the different anti-VEGF drugs in RCTs at longer followup (24 months).

Search methods

We searched various electronic databases on 8 July 2022.

Selection criteria

We included randomised controlled trials (RCTs) that compared any anti-angiogenic drug with an anti-VEGF mechanism of action versus another anti-VEGF drug, another treatment, sham, or no treatment in people with DMO.

Data collection and analysis

We used standard Cochrane methods for pairwise meta-analysis and we augmented this evidence using network meta-analysis (NMA) methods. We used the Stata 'network' meta-analysis package for all analyses. We used the CINeMA (Confidence in Network Meta-Analysis) web application to grade the certainty of the evidence.

Main results

We included 23 studies (13 with industry funding) that enrolled 3513 people with DMO (median central retinal thickness (CRT) 460 microns, interquartile range (IQR) 424 to 482) and moderate vision loss (median best-corrected visual acuity (BCVA) 0.48 logMAR, IQR 0.42 to 0.55. One study that investigated ranibizumab versus sham and one study that mainly enrolled people with subclinical DMO and normal BCVA were not suitable for inclusion in the efficacy NMA. Consistent with the previous update of this review, we used ranibizumab as the reference drug for efficacy, and control (including laser, observation, and sham) as the reference for systemic safety. Eight trials provided data on the primary outcome (change in BCVA at 24 months, in logMAR: lower is better). We found no evidence of a difference between the following interventions and ranibizumab alone: aflibercept (mean difference (MD) -0.05 logMAR, 95% confidence interval (CI) -0.12 to 0.02; moderate certainty); bevacizumab (MD -0.01 logMAR, 95% CI -0.13 to 0.10; low certainty), brolucizumab (MD 0.00 logMAR, 95% CI -0.08 to 0.07; low certainty), ranibizumab plus deferred laser (MD 0.00 logMAR, 95% CI -0.11 to 0.10; low certainty), and ranibizumab plus prompt laser (MD 0.03 logMAR, 95% CI -0.04 to 0.09; very low certainty). We also analysed BCVA change at 12 months, finding moderate-certainty evidence of increased efficacy with brolucizumab (MD -0.07 logMAR, 95%CI -0.10 to -0.03 logMAR), faricimab (MD -0.08 logMAR, 95% CI -0.12 to -0.05), and aflibercept (MD -0.07 logMAR, 95 % CI -0.10 to -0.04) compared to ranibizumab alone, but the difference could be clinically insignificant. Compared to ranibizumab alone, NMA of six trials showed no evidence of a difference with aflibercept (moderate certainty), bevacizumab (low certainty), or ranibizumab with prompt (very low certainty) or deferred laser (low certainty) regarding improvement by three or more ETDRS lines at 24 months. There was moderate-certainty evidence of greater CRT reduction at 24 months with brolucizumab (MD -23 microns, 95% CI -65 to -1 9) and aflibercept (MD -26 microns, 95% CI -53 to 0.9) compared to ranibizumab. There was moderate-certainty evidence of lesser CRT reduction with bevacizumab (MD 28 microns, 95% CI 0 to 56), ranibizumab plus deferred laser (MD 63 microns, 95% CI 18 to 109), and ranibizumab plus prompt laser (MD 72 microns, 95% CI 25 to 119) compared with ranibizumab alone. Regarding all-cause mortality at the longest available follow-up (20 trials), we found no evidence of increased risk of death for any drug compared to control, although effects were in the direction of an increase, and clinically relevant increases could not be ruled out. The certainty of this evidence was low for bevacizumab (risk ratio (RR) 2.10, 95% CI 0.75 to 5.88), brolucizumab (RR 2.92, 95% CI 0.68 to 12.58), faricimab (RR 1.91, 95% CI 0.45 to 8.00), ranibizumab (RR 1.26, 95% CI 0.68 to 2.34), and very low for conbercept (RR 0.33, 95% CI 0.01 to 8.81) and aflibercept (RR 1.48, 95% CI 0.79 to 2.77). Estimates for Antiplatelet Trialists Collaboration arterial thromboembolic events at 24 months did not suggest an increase with any drug compared to control, but the NMA was overall incoherent and the evidence was of low or very low certainty. Ocular adverse events were rare and poorly reported and could not be assessed in NMAs.

Authors' conclusions

There is limited evidence of the comparative efficacy and safety of anti-VEGF drugs beyond one year of follow-up. We found no clinically important differences in visual outcomes at 24 months in people with DMO, although there were differences in CRT change. We found no evidence that any drug increases all-cause mortality compared to control, but estimates were very imprecise. Evidence from RCTs may not apply to real-world practice, where people in need of antiangiogenic treatment are often under-treated, and the individuals exposed to these drugs may be less healthy than trial participants.

Differential diagnosis of endophthalmitis after intravitreal drug injection for age related macular degeneration: Sterile vs. infectious

The recent release of brolucizumab and the development of new antiangiogenic molecules as abicipar pegol has increased the interest towards inflammatory complications after intravitreal drug injection. Those drugs are associated to a higher rate of inflammatory adverse events compared to classic drugs. In this context it is essential to differentiate between sterile and infectious cases for a fast and effective treatment. The clinical similarities between infectious and sterile cases, the high rate of culture negative patients and the heterogeneity in the terminology used are obstacles for a correct diagnosis and report of these complications. Sterile cases appear early after the injection, before 48 hours; or 20 days after in brolucizumab-related vasculitis cases. Infectious cases show up around the third day after injection and up to a week after it. A severe visual impairment, severe pain, severe hyperemia, hypopyon and a more severe intraocular inflammatory process are signs of a likely infectious origin. If the cause of the inflammation is uncertain we must follow up the patient closely or "tap and inject" antimicrobial agents in order to prevent the eventual complications of an infectious endophthalmitis. On the other hand, sterile endophthalmitis might be observed in mild cases or treated with steroids according to the severity of the inflammation.

Targeting angiogenesis in oncology, ophthalmology and beyond

Angiogenesis is an essential process in normal development and in adult physiology, but can be disrupted in numerous diseases. The concept of targeting angiogenesis for treating diseases was proposed more than 50 years ago, and the first two drugs targeting vascular endothelial growth factor (VEGF), bevacizumab and pegaptanib, were approved in 2004 for the treatment of cancer and neovascular ophthalmic diseases, respectively. Since then, nearly 20 years of clinical experience with anti-angiogenic drugs (AADs) have demonstrated the importance of this therapeutic modality for these disorders. However, there is a need to improve clinical outcomes by enhancing therapeutic efficacy, overcoming drug resistance, defining surrogate markers, combining with other drugs and developing the next generation of therapeutics. In this Review, we examine emerging new targets, the development of new drugs and challenging issues such as the mode of action of AADs and elucidating mechanisms underlying clinical benefits; we also discuss possible future directions of the field.

Efficacy and Safety of Brolucizumab, Aflibercept, and Ranibizumab for the Treatment of Patients with Visual Impairment Due to Diabetic Macular Oedema: A Systematic Review and Network Meta-Analysis

INTRODUCTION

Key clinical guidelines recommend anti-vascular endothelial growth factor (VEGF) therapy as first-line treatment for visual impairment due to diabetic macular oedema (DMO). A systematic literature review (SLR) and network meta-analysis (NMA) were conducted comparing the relative efficacy of the anti-VEGF brolucizumab with a focused network of the most relevant comparator dosing regimens approved in countries other than the USA (aflibercept, ranibizumab). The safety and tolerability of brolucizumab were also assessed.

METHODS

A broad SLR was conducted to identify randomised controlled trials to ensure all relevant potential comparators were captured. Identified studies were refined to those appropriate for inclusion in the NMA. A Bayesian NMA was conducted comparing brolucizumab 6 mg (every 12 [Q12W]/every 8 weeks [Q8W]) with relevant aflibercept 2 mg and ranibizumab 0.5 mg regimens.

RESULTS

Fourteen studies were included in the NMA. At 1-year follow-up, the various aflibercept 2 mg and ranibizumab 0.5 mg regimens were mostly comparable with brolucizumab 6 mg Q12W/Q8W across key visual and anatomical outcomes, except brolucizumab 6 mg was favoured over ranibizumab 0.5 mg every 4 weeks (Q4W) for the change from baseline (CFB) in best-corrected visual acuity (BCVA), and BCVA loss/gain of pre-specified numbers of letters, and over ranibizumab 0.5 mg pro re nata for CFB in diabetic retinopathy severity scale, and retinal thickness. At year 2, where data were available, brolucizumab 6 mg showed similar results across efficacy outcomes versus all other anti-VEGFs. In most cases, discontinuation rates (all cause, and due to adverse events [AE]) and serious and overall rates of AEs excluding ocular inflammatory events were similar (in unpooled and pooled-treatment analyses) versus comparators.

CONCLUSION

Brolucizumab 6 mg Q12W/Q8W was comparable or superior to aflibercept 2 mg and ranibizumab 0.5 mg regimens for various visual and anatomical efficacy outcomes and discontinuation rates.

Pharmacokinetic and Pharmacodynamic Rationale for Extending VEGF Inhibition Increasing Intravitreal Aflibercept Dose

BACKGROUND

The effects of various dosages and treatment regimens on intravitreal aflibercept concentrations and the proportion of free vascular endothelial growth factor (VEGF) to total VEGF were evaluated using a drug and disease assessment model. The 8 mg dosage received specific attention.

METHODS

A time-dependent mathematical model was developed and implemented using Wolfram Mathematica software v12.0. This model was used to obtain drug concentrations after multiple doses of different aflibercept dosages (0.5 mg, 2 mg, and 8 mg) and to estimate the time-dependent intravitreal free VEGF percentage levels. A series of fixed treatment regimens were modeled and evaluated as potential clinical applications.

RESULTS

The simulation results indicate that 8 mg aflibercept administered at a range of treatment intervals (between 12 and 15 weeks) would allow for the proportion of free VEGF to remain below threshold levels. Our analysis indicates that these protocols maintain the ratio of free VEGF below 0.001%.

CONCLUSIONS

Fixed q12-q15 (every 12-15 weeks) 8 mg aflibercept regimens can produce adequate intravitreal VEGF inhibition.

Faricimab for the Treatment of Diabetic Macular Edema and Neovascular Age-Related Macular Degeneration

Nowadays; intravitreal anti-vascular endothelial growth factor (VEGF) drugs are considered the first-line therapeutic strategy for treating macular exudative diseases; including wet age-related macular degeneration (w-AMD) and diabetic macular edema (DME). Despite the important clinical achievements obtained by anti-VEGF drugs in the management of w-AMD and DME; some limits still remain; including high treatment burden; the presence of unsatisfactory results in a certain percentage of patients and long-term visual acuity decline due to complications such as macular atrophy and fibrosis. Targeting the angiopoietin/Tie (Ang/Tie) pathway beyond the VEGF pathway may be a possible therapeutic strategy; which may has the potential to solve some of the previous mentioned challenges. Faricimab is a new; bispecific antibody targeting both VEGF-A and the Ang-Tie/pathway. It was approved by FDA and; more recently; by EMA for treating w-AMD and DME. Results from phase III trials TENAYA and LUCERNE (w-AMD) and RHINE and YOSEMITE (DME) have shown the potential of faricimab to maintain clinical efficacy with more prolonged treatment regimens compared to aflibercept (12 or 16 weeks) with a a good safety profile.

Incidence, clinical features, risk factors, and outcomes of Intraocular inflammation following Brolucizumab in Indian eyes - A multicentric study

Purpose

To report the incidence, clinical features, potential risk factors, and outcomes of intraocular inflammation (IOI) following brolucizumab in Indian eyes.

Methods

All consecutive patients diagnosed with brolucizumab-induced IOI from 10 centers in eastern India between October 2020 and April 2022 were included.

Results

Of 758 injections given during the study period across centers, 13 IOI events (1.7%) were recorded attributable to brolucizumab. The IOI occurred after the first dose in two eyes (15%) (median 45 days after brolucizumab), second dose in six eyes (46%) (median = 8.5 days), and third dose (39%) in the remaining five eyes (median 7 days). Reinjections of brolucizumab were administered at a median interval of 6 weeks (interquartile range = 4-10 weeks) in the 11 eyes, where IOI occurred after the second or third dose. Eyes that experienced IOI after the third dose had received a significantly greater number of previous antivascular endothelial growth factor injections (median = 8) compared to those who developed it after the first or second dose (median = 4) (P = 0.001). Anterior chamber cells were seen in almost all eyes (n = 11, 85%), while peripheral retinal hemorrhages were seen in two eyes, and one eye showed branch artery occlusion. Two-thirds of patients (n = 8, 62%) recovered with a combination of topical and oral steroids, while remaining recovered with topical steroids alone. Irreversible visual loss was not seen in any eye, and median vision recovered to pre-IOI levels by 3 months' time point.

Conclusion

Brolucizumab-induced IOI was relatively rare, occurring in 1.7% of eyes, was more common after the second or third injection, especially in those who required frequent reinjections every 6 weeks, and occurred earlier with increasing number of previous brolucizumab injections. Continued surveillance is necessary even after repeated doses of brolucizumab.

A Treat-and-Extend Regimen of Intravitreal Brolucizumab for Exudative Age-Related Macular Degeneration Refractory to Aflibercept: A 12-Month Result

We aimed to investigate whether a treat-and-extend regimen of intravitreal brolucizumab (6.0 mg/0.05 mL) is effective for eyes with exudative age-related macular degeneration (AMD) refractory to aflibercept for 12 months. Sixty eyes from 56 patients receiving brolucizumab for exudative AMD refractory to aflibercept were included. Patients received a mean of 30.1 aflibercept administrations for a mean 67.9-month follow-up. All patients exhibited exudation on optical coherence tomography (OCT) despite regular 4-8 weeks of aflibercept administration. Visit 1 was scheduled at the same interval from the last aflibercept injection to the baseline. The treatment interval was extended or shortened by 1-2 weeks depending on the presence or absence of exudation on OCT. After switching to brolucizumab, the follow-up interval significantly extended at 12 months (before switching: 7.6 ± 3.8 weeks vs. at 12 months: 12.1 ± 6.2 weeks, p = 1.3 × 10^-7). Forty-three percent of the eyes achieved a dry macula at 12 months after switching. However, the best-corrected visual acuity did not improve at any visit. Morphologically, the central retinal thickness and subfoveal choroidal thickness significantly decreased from baseline at 12 months (p = 3.6 × 10^-3 and 1.0 × 10^-3, respectively). Switching to brolucizumab can be considered to extend the treatment interval in eyes with exudative AMD refractory to aflibercept.

Brolucizumab in Neovascular Age-Related Macular Degeneration and Diabetic Macular Edema: Ophthalmology and Diabetology Treatment Aspects

Anti-vascular endothelial growth factor (anti-VEGF) therapies have become the standard of care in the treatment of neovascular age-related macular degeneration (nAMD) and diabetic macular edema (DME), resulting in a remarkable decrease in disease-related vision loss. However, the need for regular injections places a significant burden on patients, caregivers, and the healthcare system and improvements in vision may not be maintained long term. As a result of its drying potency and duration of action, brolucizumab, an intravitreal anti-VEGF therapy approved for the treatment of nAMD and DME, could decrease injection frequency for patients and provide an efficacious treatment; however, balancing its benefits and risks can be challenging. There have been reports of intraocular inflammation (IOI) in patients treated with brolucizumab, which, if left untreated, may result in severe vision loss. Recent evidence, however, indicates that early recognition of IOI and prompt and aggressive systemic corticosteroid treatment in response to posterior segment involvement can lead to favorable outcomes in these relatively rare but severe cases. A series of consensus meetings were conducted in 2022 between Swiss medical retina experts and diabetologists, discussing the current data for brolucizumab and exploring various challenges to its use, including the associated risk of IOI. The outcome is a collation of practical insights and guidance for ophthalmologists on the use of brolucizumab in patients with nAMD and DME, including patient selection and assessment, treatment regimen and monitoring, and the recognition and management of adverse events.

Defining incidence and complications of fibrolamellar liver cancer through tiered computational analysis of clinical data

The incidence and biochemical consequences of rare tumor subtypes are often hard to study. Fibrolamellar liver cancer (FLC) is a rare malignancy affecting adolescents and young adults. To better characterize the incidence and biochemical consequences of this disease, we combined a comprehensive analysis of the electronic medical record and national payer data and found that FLC incidence is likely five to eight times higher than previous estimates. By employing unsupervised learning on clinical laboratory data from patients with hyperammonemia, we find that FLC-associated hyperammonemia mirrors metabolic dysregulation in urea cycle disorders. Our findings demonstrate that advanced computational analysis of rich clinical datasets can provide key clinical and biochemical insights into rare cancers.

Review on the Safety and Efficacy of Brolucizumab for Neovascular Age-Related Macular Degeneration From Major Studies and Real-World Data

Frequent antivascular endothelial growth factor injections in neovascular age-related macular degeneration (nAMD) often lead to poor compliance and suboptimal outcomes. A longer-acting agent has been a pressing unmet need until recently. Brolucizumab, an antivascular endothelial growth factor agent, is a single-chain antibody fragment approved by the US Food and Drug Administration (FDA) on October 8, 2019, for treating nAMD. It delivers more molecules at equivalent volumes of aflibercept, thus achieving a longer-lasting effect. We reviewed literature published in English between January 2016 and October 2022 from MEDLINE, PubMed, Cochrane database, Embase, and Google scholar using the keywords: "Brolucizumab, real-world data, intraocular inflammation (IOI), safety, and efficacy". Brolucizumab showed reduced injection frequency, better anatomic outcomes, and noninferior vision gains compared with aflibercept in HAWK and HARRIER studies. However, post hoc studies on brolucizumab revealed a higher-than-expected incidence of IOI, leading to the early termination of 3 studies: MERLIN, RAPTOR, and RAVEN for nAMD, branch retinal vein occlusion, and central retinal vein occlusion, respectively. Contrastingly real-world data showed encouraging outcomes in terms of fewer IOI cases. The subsequent amendment of the treatment protocol resulted in reduced IOI. Thereafter US FDA approved its use in diabetic macular edema on June 1, 2022. Based on major studies and real-world data, this review shows that brolucizumab is effective for treating naive and refractory nAMD. The risk of IOI is acceptable and manageable, but proper preinjection screening and high-vigilance care of IOI are needed. More studies are warranted to evaluate further the incidence, best prevention, and treatment measures for IOI.

Efficacy and safety of brolucizumab in age-related macular degeneration: A systematic review of real-world studies

Intravitreally injected anti-vascular endothelial growth factor (anti-VEGF) agents are first-line treatment for neovascular age-related macular degeneration (nAMD). Phase 3 trials demonstrated non-inferiority of anti-VEGF therapy with brolucizumab compared with aflibercept in best corrected visual acuity (BCVA) gains, with superior anatomical outcomes after brolucizumab. The purpose of the review was to summarize real-world efficacy and safety data on brolucizumab in patients with nAMD. The review protocol was registered with PROSPERO (ID: CRD42021290530). We conducted systematic searches in Embase, Medline and key ophthalmology congress websites (19 October 2021). Original reports of efficacy and/or safety in patients receiving brolucizumab to treat nAMD in clinical practice were eligible. The descriptive summary includes reports describing at least 10 brolucizumab-treated eyes. In total, 2907 brolucizumab-treated eyes from 26 studies were included. Outcomes were available for treatment-naive eyes (six studies), eyes switched to brolucizumab from other anti-VEGFs (16 studies), and/or treatment-naive and switch eyes combined (eight studies). Follow-up time points ranged from 4 weeks to 1 year post-brolucizumab initiation. For BCVA, significant improvements compared with brolucizumab initiation were reported in four of six studies in treatment-naive eyes (mean BCVA improvement, range: +3.7 to +11.9 Early Treatment Diabetic Retinopathy Study [ETDRS] letters) and in three of 12 studies in switch eyes (range: +9.0 to +15 ETDRS letters) (all p < 0.05); remaining studies reported no significant post-brolucizumab BCVA changes. For central subfield thickness (CST), improvements post-brolucizumab initiation were reported in all six studies in treatment-naive eyes (mean CST improvement, range: -113.4 to -150.1 μm) and in eight of 11 studies in switch eyes (range: -26 to -185.7 μm) (all p < 0.05). The 14 studies reporting on intraretinal, subretinal and/or total fluid observed improvements post-brolucizumab initiation. The four studies comparing treatment intervals observed extension of the interval between injections after switching to brolucizumab from other anti-VEGFs. Incidence of intraocular inflammation ranged from 0% to 19%. In conclusion, real-world efficacy and safety data concur with brolucizumab pivotal trials. Additionally, reduction of disease activity in anti-VEGF switch eyes was demonstrated by fluid reduction and/or visual acuity gain, along with prolongation of the interval between injections.

Factors Linked to Injection Interval Extension in Eyes with Wet Age-Related Macular Degeneration Switched to Brolucizumab

PURPOSE

To evaluate factors associated with anti-VEGF injection interval extension in patients with neovascular age-related macular degeneration (nAMD) switched to brolucizumab.

DESIGN

Retrospective observational cohort study.

PARTICIPANTS

Adults in the US-based Intelligent Research in Sight (IRIS) Registry with nAMD who switched from another anti-VEGF agent (treatment-experienced) to brolucizumab-only treatment for at least 12 months in the time period of 10/08/2019 through 11/26/2021.

METHODS

Univariate and multivariable analyses were used to examine associations of demographic and clinical characteristics with the likelihood of interval extension following switch to brolucizumab therapy.

MAIN OUTCOME MEASURES

Eyes were classified as either "extenders" or "non-extenders" at 12 months. "Extenders" were eyes that achieved (i) an extension of ≥ 2 weeks in the brolucizumab injection interval at 12 months versus the pre-switch interval (time between the last known prior anti-VEGF injection and first ["index"] brolucizumab injection) and (ii) stable (< 10 letters gained or lost) or improved (≥ 10 letters gained) visual acuity (VA) at 12 months compared with VA at index.

RESULTS

Of the 2015 eyes among 1890 patients that switched to brolucizumab, 1186 eyes (58.9%) were "extenders". In univariate analyses, demographic and clinical characteristics were comparable between extenders and non-extenders, except that extenders had a shorter pre-switch interval compared with non-extenders (mean 5.9 ± 2.1 versus 10.1 ± 7.6 weeks, respectively). The multivariable logistic regression model showed that a shorter pre-switch interval was significantly and positively associated with interval extension with brolucizumab therapy (adjusted odds ratio 5.6 for pre-switch interval of <8 weeks compared with ≥8 weeks; 95% confidence interval 4.5-6.9; P <0.001), and that eyes with an index VA of 40-65 letters were significantly less likely to be extenders than eyes in the higher (better) index VA categories.

CONCLUSIONS

Length of the pre-switch treatment interval was the characteristic most strongly associated with successful interval extension with brolucizumab. Treatment-experienced patients who required more frequent injections (i.e., shorter pre-switch intervals) showed the greatest extensions when switching to brolucizumab. With careful consideration of the benefits/risks, brolucizumab may be a valuable treatment option for patients whose treatment burden is higher due to the need for frequent injections.

The Role of Inflammation in Age-Related Macular Degeneration: Updates and Possible Therapeutic Approaches

Age-related macular degeneration (AMD) is a common retinal disease characterized by complex pathogenesis and extremely heterogeneous characteristics. Both in "dry" and "wet" AMD forms, the inflammation has a central role to promote the degenerative process and to stimulate the onset of complications. AMD is characterized by several proinflammatory stimuli, cells and mediators involved, and metabolic pathways. Nowadays, inflammatory biomarkers may be unveiled and analyzed by means of several techniques, including laboratory approaches, histology, immunohistochemistry, and noninvasive multimodal retinal imaging. These methodologies allowed to perform remarkable steps forward for understanding the role of inflammation in AMD pathogenesis, also offering new opportunities to optimize the diagnostic workup of the patients and to develop new treatments. The main goal of the present paper is to provide an updated scenario of the current knowledge regarding the role of inflammation in "dry" and "wet" AMD and to discuss new possible therapeutic strategies.

Novel Approaches in the Drug Development and Delivery Systems for Age-Related Macular Degeneration

The number of patients with ocular disorders has increased due to contributing factors such as aging populations, environmental changes, smoking, genetic abnormalities, etc. Age-related macular degeneration (AMD) is one of the common ocular disorders which may advance to loss of vision in severe cases. The advanced form of AMD is classified into two types, dry (non-exudative) and wet (exudative) AMD. Although several therapeutic approaches are explored for the management of AMD, no approved therapy can substantially slow down the progression of dry AMD into the later stages. The focus of researchers in recent times has been engaged in developing targeted therapeutic products to halt the progression and maintain or improve vision in individuals diagnosed with AMD. The delivery of anti-VEGF agents using intravitreal therapy has found some success in managing AMD, and novel formulation approaches have been introduced in various studies to potentiate the efficacy. Some of the novel approaches, such as hydrogel, microspheres, polymeric nanoparticles, liposomes, implants, etc. have been discussed. Apart from this, subretinal, suprachoroidal, and port delivery systems have also been investigated for biologics and gene therapies. The unmet potential of approved therapeutic products has contributed to several patent applications in recent years. This review outlines the current treatment options, outcomes of recent research studies, and patent details around the novel drug delivery approach for the treatment of AMD.

The Treatment Patterns with Brolucizumab in Germany (REALIZE) Study: A Retrospective Cohort Study Based on Longitudinal Prescription Data

INTRODUCTION

This study describes real-world treatment patterns in Germany for brolucizumab, an anti-vascular endothelial growth factor (anti-VEGF) therapy for neovascular age-related macular degeneration (nAMD).

METHODS

This single-arm retrospective cohort study used German patient-level prescription data. Patients aged ≥ 50 years, who received ≥ 1 brolucizumab prescription in one eye only (unilateral) and had a minimum of 12 months follow-up were included. Three cohorts were defined from the overall population: anti-VEGF treatment-naive patients ("treatment-naive"); anti-VEGF treatment-experienced patients ("treatment-experienced"); and of the treatment-experienced cohort, patients persistent on brolucizumab for 12 months ("treatment-experienced persistent"), i.e. who received ≥ 2 brolucizumab injections and did not discontinue or use other anti-VEGF agents in that period. Descriptive statistics were used to analyse patient characteristics and injection intervals.

RESULTS

A total of 2089 patients with at least 12 months follow-up and one brolucizumab injection were analysed. Most were female (58.1%), aged 80+ years (54.7%). A total of 539 (25.8%) were treatment-naive, 1550 (74.2%) treatment-experienced and, of those, 787 (50.8%) were persistent. Overall, the median (interquartile range, IQR) number of brolucizumab injections during the 12 months follow-up was 5.0 (3.0-8.0). In the treatment-naive and treatment-experienced sub-cohorts it was 5.0 (3.0-8.0) and 5.0 (3.0-9.0) injections, respectively. In the treatment-experienced persistent cohort the median (IQR) number of injections was 8.0 (5.0-10.0). In this same cohort, the median (IQR) treatment interval between anti-VEGF injections before switch to brolucizumab was 5.1 (4.0-8.0) weeks, whilst the brolucizumab interval at 12 months after switch was 8.0 (6.0-11.9) weeks. Of treatment-experienced patients, 67% extended their treatment interval and those with pre-switch intervals less than 6 weeks (< q6w), in particular, had meaningful treatment interval extensions.

CONCLUSION

Patients who switched to brolucizumab had a median treatment interval extension of about 3 weeks at 12 months. These results show that treatment with brolucizumab has the potential to reduce treatment burden in patients with nAMD in routine clinical practice.

Big data in corneal diseases and cataract: Current applications and future directions

The accelerated growth in electronic health records (EHR), Internet-of-Things, mHealth, telemedicine, and artificial intelligence (AI) in the recent years have significantly fuelled the interest and development in big data research. Big data refer to complex datasets that are characterized by the attributes of "5 Vs"-variety, volume, velocity, veracity, and value. Big data analytics research has so far benefitted many fields of medicine, including ophthalmology. The availability of these big data not only allow for comprehensive and timely examinations of the epidemiology, trends, characteristics, outcomes, and prognostic factors of many diseases, but also enable the development of highly accurate AI algorithms in diagnosing a wide range of medical diseases as well as discovering new patterns or associations of diseases that are previously unknown to clinicians and researchers. Within the field of ophthalmology, there is a rapidly expanding pool of large clinical registries, epidemiological studies, omics studies, and biobanks through which big data can be accessed. National corneal transplant registries, genome-wide association studies, national cataract databases, and large ophthalmology-related EHR-based registries (e.g., AAO IRIS Registry) are some of the key resources. In this review, we aim to provide a succinct overview of the availability and clinical applicability of big data in ophthalmology, particularly from the perspective of corneal diseases and cataract, the synergistic potential of big data, AI technologies, internet of things, mHealth, and wearable smart devices, and the potential barriers for realizing the clinical and research potential of big data in this field.

Real-World Experience Using Intravitreal Brolucizumab Alone or in Combination with Aflibercept in the Management of Neovascular Age-Related Macular Degeneration

Purpose

To evaluate real-world experience using intravitreal brolucizumab (IVBr), alone or in combination with aflibercept, in eyes with neovascular age-related macular degeneration (nAMD) treated previously with other inhibitors of VEGF (anti-VEGF).

Methods

This was a retrospective study of all eyes with nAMD treated with IVBr on a treat-and-extend protocol at a single center. Best-corrected visual acuity (BCVA), optical coherence tomography (OCT) at baseline and final visit, and drug-related adverse events were analyzed. Eyes with recurrent macular fluid on IVBr every 8 weeks were treated with a combination therapy alternating between IVBr and aflibercept every month.

Results

Among 52 eyes (40 patients) on IVBr, all had been previously treated with other anti-VEGF therapy, with 73% having persistent macular fluid. After a mean follow-up of 46.2±27.4 weeks on IVBr, the mean treatment interval for intravitreal therapy increased to 8.8±2.1 weeks on IVBr from a baseline of 6.1±3.1 weeks (p<0.001). Macular fluid decreased and BCVA was stable/improved in 61.5% of eyes on IVBr. Ten eyes with increased macular fluid on IVBr monotherapy when extended to every 8 weeks were treated with combination therapy alternating between IVBr and aflibercept every 4 weeks. In these eyes, 80% had improved macular fluid on OCT and 70% stable or improved BCVA after a median follow-up of 53 weeks on combination therapy. Mild intraocular inflammation developed in four eyes, all occurring on IVBr monotherapy, and none had associated vision loss.

Conclusion

In the real world, IVBr used to treat eyes with nAMD previously treated with other anti-VEGF therapies appears to be well tolerated and associated with an improvement in macular fluid, stabilization of BCVA, and/or increase in intravitreal treatment interval. Combination therapy alternating between IVBr and aflibercept monthly appears to be well tolerated and can be considered for eyes with macular fluid on IVBr every 8 weeks.

Brolucizumab in Neovascular Age-Related Macular Degeneration - Indian Real-World Experience: The BRAILLE Study - Fifty-Two-Week Outcomes

Purpose

To report the 52-week real-world efficacy and safety outcomes of brolucizumab therapy for neovascular age-related macular degeneration (nAMD) in Indian eyes.

Patients and Methods

A retrospective, multicentre chart analysis of 82 eyes of 82 patients with nAMD (switch therapy: 65 eyes; treatment-naïve: 17 eyes) with 52-week follow-up data was performed. Pro-re-nata re-treatment was offered based on visual and tomographic criteria. Changes in best-corrected visual acuity (BCVA), intraretinal fluid (IRF), subretinal fluid (SRF), central-subfield thickness (CST), and pigment epithelial detachment (PED) were the key outcome measures, coupled with the safety profile.

Results

The mean age of the study population was 67.65 (±10.67) years, with 57 male patients (69.5%). The study's mean number of injections was 4.8 (± 0.77). After brolucizumab therapy, the BCVA improved significantly at weeks 4 (P<0.001), and maintained up to week 52 (P<0.001). The CST also reduced significantly at all the visits (Baseline: 413.6 ± 64.6 µm; 52-week: 292.37 ± 13.5 µm; P<0.001). Significantly fewer eyes demonstrated residual SRF (P<0.001) and IRF (P<0.001) at all visits, starting with week 12 and continuing until week 52. The PED resolution was significant from week 24 through week 52 (P=0.004). Each of the 82 eyes received four injections of brolucizumab, with 63.4% (52 eyes) receiving a fifth dose and only 17.1% requiring a sixth. Mild intraocular inflammation (IOI) was seen in three eyes (3.66%) that resolved conservatively. One patient (1.2%) developed mild fever that subsided with oral medications.

Conclusion

The 52-week BRAILLE study demonstrates that brolucizumab is effective and safe in nAMD eyes in a real-world setting. Brolucizumab treatment can reduce the therapeutic burden in patients with nAMD due to its rapid, sustained efficacy and favourable safety profile.

Targeted Nanotherapies for the Posterior Segment of the Eye: An Integrative Review on Recent Advancements and Challenges

The eye is a one-of-a-kind sensory organ with intricate anatomy and physiology. It is protected by a variety of barriers, ranging from static barriers to dynamic barriers. Although these barriers are very effective at protecting the eye from exogenous substances and external stress, they are highly compromised by various vision-impairing diseases of both the anterior and the posterior segment of the eye. Due to ocular elimination systems and intricate obstacles that selectively limit drug entry into the eye, effective drug delivery to the posterior segment of the eye (PSE) continues to be a challenge in ophthalmology. Since more than half of the most debilitating eye illnesses are thought to originate in the posterior segment (PS), understanding the physiology and clearance mechanism of the eye could help design improved formulations that could be noninvasive and intended for targeted posterior segment therapeutics. Moreover, the major drawback associated with the conventional drug delivery system to PSE is minimal therapeutic drug concentration in the desired ocular tissue and life-threatening ophthalmic complications. One possible approach that can be implemented to overcome these ocular barriers for efficient ocular therapy, non-invasive and targeted drug action to the posterior tissues is by designing nanomedicines. This review summarizes the recent non-invasive and patient compliant advances in designing nanomedicines targeting PSE. The various routes and pathways of drug administration to the ocular tissue are also summarized.