Prechoroidal Cleft Regression After Switch to Intravitreal Brolucizumab

Prechoroidal cleft changes after intravitreal injections of Faricimab in treatment-naïve and nonresponders-to-aflibercept patients: A case series

PURPOSE

To describe the clinical and optical coherence tomography (OCT) changes of prechoroidal cleft in treatment-naïve and non-naïve neovascular age-related macular degeneration (nAMD) treated with Faricimab intravitreal injections.

METHODS

A case series (4 eyes from 4 patients).

RESULTS

Cases 1 and 2 were diagnosed with treatment-naïve nAMD. Case 1 showed minimal prechoroidal cleft persistence after treatment with visual acuity stabilization. Case 2 showed prechoroidal cleft resolution, followed by its recurrence with neovascular reactivation. Cases 3 and 4 had a history of nAMD unresponsive to Aflibercept therapy. In Case 3, prechoroidal cleft reappearance occurred simultaneously to neovascular reactivation. In Case 4 prechoroidal cleft resolved rapidly after switching to Faricimab, but this was complicated by the development of a retinal pigment epithelium (RPE) tear.

CONCLUSION

In this report, we highlight the importance of prechoroidal cleft as a negative prognostic OCT biomarker despite the increasingly proved efficacy of Faricimab. Pigment epithelium detachment height may correlate with the size of prechoroidal cleft and macular neovascularization (MNV) activity. Further studies are needed to better elucidate the prognostic significance of prechoroidal cleft after Faricimab therapy.

Faricimab efficacy in type 1 macular neovascularization: AI-assisted quantification of pigment epithelium detachment (PED) volume reduction over 12 months in Naïve and switch eyes

BACKGROUND

This study evaluates the efficacy of intravitreal Faricimab in reducing pigment epithelium detachment (PED) and fluid volumes in both treatment-naïve eyes and eyes unresponsive to anti-VEGF mono-therapies, all diagnosed with type 1 macular neovascularization (T1 MNV) over a period of 12-month.

METHODS

A retrospective, single-center cohort study was conducted at the Jules Gonin Eye Hospital, Lausanne, Switzerland. Clinical records of treatment-naïve and non-responder switch patients presenting T1 MNV secondary to neovascular age-related macular degeneration (nAMD) from September 2022 to March 2023 were reviewed. Patients received a loading dose of three monthly Faricimab injections followed by a treat-and-extend (T&E) regimen. Multimodal imaging, including structural OCT and AI-assisted analysis, was used to quantify PED volumes and related fluid biomarkers at baseline, 3-month, 6-month, and 12-month follow-up. Statistical analyses included linear mixed models to evaluate differences and trends in intraretinal (IRF), subretinal fluid (SRF) and PED volumes.

RESULTS

65 eyes of 65 patients were enrolled (female: 70.7%; mean age = 80.7yrs, SD = 6.9yrs). 80% had received anti-VEGF treatment (Switch group) and 20% were treatment-Naïve at baseline. At 12 months, intravitreal treatments were more frequent in the Switch group (mean number = 8.3 vs. 6.0; p = 0.009). BCVA improved at the 12-month follow-up in Naïve eyes (+ 6.9 ETDRS letters from baseline, p = 0.053) and was maintained in Switch eyes. No cases of intraocular inflammation were observed. Significant reduction in SRF and IRF volumes were noted in both groups. A significant reduction in PED volume was observed over the follow-up period in both groups (mean slope = -206 nL, 95%CL = -273/-138; p-value < 0.001).

CONCLUSIONS

Intravitreal Faricimab significantly reduced PED volumes in both treatment-Naïve and non-responder Switch patients over 12 months. The study highlights Faricimab's potential as an effective treatment option for T1 MNV in nAMD, offering significant improvements in PED volume and related fluid biomarkers.

Predictors of 24-month onset of macular fibrosis in type 3 macular neovascularisation

AIMS

To explore prognostic multimarker models for progression to macular fibrosis (MF) over 24 months specific to type 3 macular neovascularisation (T3 MNV).

METHODS

This retrospective, exploratory, single-centre, cohort study comprised 65 eyes of 43 Caucasian patients with treatment naive T3 MNV, all with a 24-month follow-up post anti-VEGF therapy using a strict pro-re-nata (PRN) regimen. Data on demographic features, clinical findings, frequency of intravitreal treatments and optical coherence tomography biomarkers were collected at baseline and after 12 and 24 months of follow-up. Logistic regression models (LRM) and receiver-operating curve (C-index) analyses were performed to evaluate the prognostic ability of the studied biomarkers in discriminating between MF affected and unaffected patients.

RESULTS

At final follow-up, MF was present in 46.2% of eyes. Subretinal hyper-reflective material (SHRM) and subretinal pigment epithelium multilaminar hyper-reflectivity (multilaminae) emerged as significant predictors for MF, with adjusted odds ratios (OR) of 18.0 (95% CL 13.4 to 24.1) and 11.8 (95% CL 8.66 to 16.0), respectively. Additionally, the presence of multifocal lesions (OR 0.04, 95% CL 0.01 to 0.30) appeared to decrease the likelihood of MF. C-indexes for the selected LRMs ranged between 0.92 and 0.88, indicating a comparably high discriminant ability. Despite consistent treatment schedules between the two groups (MF: median intravitreal treatment (IVT) number=10.5, IQR=7; non-MF: median IVT=10, IQR=6), a decline in best-corrected visual acuity was noted in the group with MF onset over the 24-month follow-up (-13.0 ETDRS letters; 95% CL -22.1 to -3.9; p=0.006).

CONCLUSION

Our study identifies SHRM and multilaminae as relevant predictors of 24-month onset of MF in patients with T3 MNV. These findings enrich our understanding of the development of MF in T3 MNV and can guide improved risk prognostication. Future research should consider larger samples and prospective designs to validate these predictors.

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.

[Efficacy of brolucizumab in the treatment of retinal pathologies: a review of post-marketing studies]

Brolucizumab, an angiogenesis inhibitor, is a single-chain fragment of a humanized antibody used to treat neovascular age-related macular degeneration (nAMD) and diabetic macular edema (DME). Although registration studies are the primary source of information on the new drug, post-marketing studies allow for further exploration and expansion of previous knowledge about its effectiveness, safety, and dosing regimens. This study summarizes the experience with brolucizumab from real-world clinical practice studies. A systematic literature review was conducted to identify articles published up to April 2024 that investigated the use of brolucizumab in the treatment of retinal vasogenic diseases, revealing the high effectiveness of brolucizumab compared to other angiogenesis inhibitors in the treatment of patients with nAMD and DME, including those who were treatment-naïve and those resistant to ongoing therapy, as well as patients with changes in the vitreoretinal interface. A significant advantage of brolucizumab is its ability to reduce the number of injections and extend the intervals between them up to 16 weeks. Study results demonstrate substantial improvements in anatomical and functional outcomes compared to previously existing and newly emerging angiogenesis inhibitors. Its ability to stabilize disease progression, achieve better disease control, and reduce injection frequency makes brolucizumab an attractive option for both first-line therapy and as a switching drug, highlighting its potential for expanded indications.