scholarly journals The Efficacy of Conbercept in Polypoidal Choroidal Vasculopathy: A Systematic Review

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Yimin Wang ◽  
Mengxi Shen ◽  
Jinwei Cheng ◽  
Xiaodong Sun ◽  
Peter K. Kaiser
Keyword(s):  
Systematic Review ◽  
Polypoidal Choroidal Vasculopathy ◽  
Randomized Clinical Trials ◽  
Meta Analysis ◽  
Random Effect ◽  
Fixed Effect Model ◽  
Age Related Macular Degeneration ◽  
Age Related ◽  
Significant Difference ◽  
Choroidal Vasculopathy

Topic. The aim of this study is to evaluate the efficacy of conbercept in PCV, which will optimize the management for PCV patients. Clinical Relevance. The use of antivascular endothelial growth factor (VEGF) therapy in polypoidal choroidal vasculopathy (PCV), a subtype of neovascular age-related macular degeneration (nAMD), has been well established in randomized clinical trials. This meta-analysis has evaluated the efficacy of a novel anti-VEGF agent, conbercept, in the management of PCV using ranibizumab and aflibercept as the reference agents. Methods. Thirty studies with 1308 eyes were identified and included in this study. The primary outcome measures were best-corrected visual acuity (BCVA), and secondary outcomes were optical coherence tomography characteristics and polyp regression rates. The pooled results were calculated by the random-effect or fixed-effect model according to the heterogeneity of the data. Results. Despite a large standard deviation in means (SMD) improvement for BCVA and central retinal thickness (CRT) in the conbercept group, there was no statistically significant difference in the other outcomes compared to ranibizumab and aflibercept. However, there was a greater polyp regression rate in the conbercept group at 12 months. Conclusions. This systematic review indicates that conbercept may achieve similar BCVA and CRT improvements as ranibizumab and aflibercept, with a superior rate of polyp regression at 12 months.

scholarly journals Efficacy Comparison of Intravitreal Anti-VEGF Therapy for Three Subtypes of Neovascular Age-Related Macular Degeneration: A Systematic Review and Meta-Analysis

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Jianqing Li ◽  
Jiayi Xu ◽  
Yiyi Chen ◽  
Jiaju Zhang ◽  
Yihong Cao ◽  
...  
Keyword(s):  
Systematic Review ◽  
Macular Degeneration ◽  
Meta Analysis ◽  
Age Related Macular Degeneration ◽  
Cochrane Library ◽  
Anti Vegf ◽  
Age Related ◽  
Significant Difference ◽  
The Mean

Purpose. Intravitreal antivascular endothelial growth factor (anti-VEGF) therapy has been widely used for the treatment of neovascularization (NV) secondary to age-related macular degeneration (AMD). This study aimed to compare the efficacy among different subtypes of neovascular age-related macular degeneration (nAMD). Methods. PubMed, Embase, and the Cochrane Library were searched for eligible studies. We performed meta-analysis using Review Manager 5.3 and Stata/SE 12.0. Results. A total of 24 studies met our inclusion criteria and were included in the systematic review. At 3 months, the mean logarithm of the minimum angle of resolution (logMAR) improvements were −0.09, −0.18, and −0.23 for type 1, 2, and 3, respectively, while the mean macular thickness (MT) changes were −104.83, −130.76, and −196.29 μm. At 12 months, the mean changes in Early Treatment of Diabetic Retinopathy Study (ETDRS) letters were 6.38, 8.12, and 9.37, while the MT decrease was 126.51, 126.52, and 139.85 μm, respectively. However, statistically significant difference was only found between type 1 and 3 in vision improvement, both in the short term (p=0.0002) and long term (p=0.01). Conclusions. The reactivity to VEGF inhibitors varied among different subtypes of nAMD. The efficacy of intravitreal anti-VEGF therapy in type 3 nAMD was statistically better than type 1 when considering vision improvement at 3 and 12 months. Thus, the lesion subtype is a predictor for the treatment outcome which can help guide prognosis.

scholarly journals Investigation of the Trend of Selecting Anti-Vascular Endothelial Growth Factor Agents for the Initial Treatment of Neovascular Age-Related Macular Degeneration and Polypoidal Choroidal Vasculopathy

2021 ◽  
Vol 10 (16) ◽  
pp. 3580
Author(s):  
Jae-Hui Kim ◽  
Jong-Woo Kim ◽  
Chul-Gu Kim
Keyword(s):  
Macular Degeneration ◽  
Initial Treatment ◽  
Polypoidal Choroidal Vasculopathy ◽  
Age Related Macular Degeneration ◽  
Age Related ◽  
Significant Difference ◽  
Treatment Naïve ◽  
Treatment Agent ◽  
Type 3 ◽  
Choroidal Vasculopathy

BACKGROUND: This study aimed to investigate the trend of selecting ranibizumab and aflibercept for the initial treatment of neovascular age-related macular degeneration (AMD) and polypoidal choroidal vasculopathy (PCV). METHODS: This was a retrospective study that included 460 patients who were diagnosed with treatment-naïve neovascular AMD and PCV and were initially treated with either ranibizumab or aflibercept. The patients were divided into two groups: the ranibizumab group (n = 96) and the aflibercept group (n = 324). The patients’ characteristics and the proportion of the subtypes of macular neovascularization (MNV) were compared between the two groups. RESULTS: Patients in the ranibizumab group were significantly older (mean 74.3 ± 8.4 years) than those in the aflibercept group (mean 70.4 ± 8.8 years; p < 0.001). In the ranibizumab group, the proportions of type 1 or 2 MNV, type 3 MNV, and PCV were 50.0%, 27.1%, and 22.9%, respectively. In the aflibercept group, the proportions were 35.2%, 6.8%, and 58.0%, respectively. There was a significant difference in the proportion of MNV subtypes between the ranibizumab and aflibercept groups (p < 0.001). Ranibizumab was used in 54.2% of patients with type 3 MNVs. However, in patients with PCV, aflibercept was used in 89.5% of patients. CONCLUSIONS: Ranibizumab was preferred as an initial treatment agent in older patients and those with type 3 MNV, whereas aflibercept was highly preferred in patients with PCV. The different characteristics and efficacy of the two agents may have partially contributed to this trend.

scholarly journals Genetic Variants Affecting Anti-VEGF Drug Response in Polypoidal Choroidal Vasculopathy Patients: A Systematic Review and Meta-Analysis

Genes ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1335
Author(s):  
Xando Díaz-Villamarín ◽  
David Blánquez-Martínez ◽  
Ana Pozo-Agundo ◽  
Ana María Pérez-Gutiérrez ◽  
José Ignacio Muñoz-Ávila ◽  
...  
Keyword(s):  
Systematic Review ◽  
Treatment Response ◽  
Genetic Variants ◽  
Polypoidal Choroidal Vasculopathy ◽  
Drug Response ◽  
Meta Analysis ◽  
Age Related Macular Degeneration ◽  
Anti Vegf ◽  
Arms2 A69s ◽  
Choroidal Vasculopathy

Polypoidal choroidal vasculopathy (PCV) is usually regarded as a subtype of choroidal neovascularization (CNV) that is secondary to age-related macular degeneration (AMD) characterized by choroidal vessel branching, ending in polypoidal lesions. Despite their close association, PCV and neovascular AMD have shown differences, especially regarding patients’ treatment response. Currently, antivascular endothelial growth factor (anti-VEGF) drugs, such as ranibizumab, bevacizumab and aflibercept, have demonstrated their efficacy in CNV patients. However, in PCV, anti-VEGF treatments have shown inconclusive results. Many genetic polymorphisms have been associated with a variable response in exudative/wet AMD patients. Thus, the aim of this study is to explore the genetic variants affecting anti-VEGF drug response in PCV patients. In this regard, we performed a systematic review and meta-analysis. We found four variants (CFH I62V, CFH Y402H, ARMS2 A69S, and HTRA1-62A/G) that have been significantly related to response. Among them, the ARMS2 A69S variant is assessed in our meta-analysis. In conclusion, in order to implement anti-VEGF pharmacogenetics in clinical routines, further studies should be performed, distinguishing physio-pathogenic circumstances between PCV and exudative AMD and the combined effect on treatment response of different genetic variants.

scholarly journals Polypoidal Choroidal Vasculopathy Treatment: Photodynamic Therapy, Anti-VEGF Monotherapy or Combination. Review of Clinical Studies

2019 ◽  
Vol 16 (2) ◽  
pp. 151-158
Author(s):  
E. K. Pedanova ◽  
A. V. Doga
Keyword(s):  
Photodynamic Therapy ◽  
Polypoidal Choroidal Vasculopathy ◽  
Randomized Clinical Trials ◽  
Antiangiogenic Therapy ◽  
Age Related Macular Degeneration ◽  
Long Term Results ◽  
Anti Vegf ◽  
Age Related ◽  
Number Of Patients ◽  
Choroidal Vasculopathy

Polypoidal choroidal vasculopathy (PCV) is a rare subtype of neovascular age-related macular degeneration (AMD), its specific features are abnormal branching vascular network with aneurysmal dilatations (polyps), it can be diagnosed in indocyanine green angiography. PCV differs from typical AMD by some ophthalmoscopic manifestations, multimodal imaging data as angiography, OCT with the ability to visualize the choroid, OCT-angiography and expression of VEGF. Despite the different response to antiangiogenic therapy, the presence of pathological neovascularization requires anti-VEGF treatment for both AMD types. In this review, we summarize the latest literature data on the treatment of polyphoidal choroidal vasculopathy: anti-VEGF monotherapy, photodynamic monotherapy, and their combinations. Special attention is paid to the results of multicenter randomized clinical trials with a large number of patients evaluating efficacy of Ranibizumab and Aflibercept (EVEREST 2 and PLANET). The short-term and long-term results of treatment are presented, taking into account the dosing regimens, the number of required injections and the requirement for a combination of anti-VEGF monotherapy with photodynamic therapy. The results of randomized clinical trial are providing high level evidence to guide clinical specialists in choosing the most appropriate therapy for PCV.

Treat and extend versus fixed regimen in neovascular age related macular degeneration: A systematic review and meta-analysis

2020 ◽  
pp. 112067212096469
Author(s):  
Matteo Fallico ◽  
Andrew J Lotery ◽  
Antonio Longo ◽  
Teresio Avitabile ◽  
Vincenza Bonfiglio ◽  
...  
Keyword(s):  
Macular Degeneration ◽  
Randomized Clinical Trials ◽  
Random Effect ◽  
Pooled Analysis ◽  
Age Related Macular Degeneration ◽  
Treat And Extend ◽  
Age Related ◽  
Significant Difference ◽  
The Mean ◽  
Number Of Injections

Purpose: To compare efficacy of treat and extend (T&E) versus fixed regimen treatment protocols in neovascular age-related macular degeneration (nAMD). Methods: Randomized clinical trials (RCTs) comparing T&E versus fixed regimen protocols for nAMD were systematically searched. Primary outcome was to compare the mean best corrected visual acuity (BCVA) change in T&E regimen versus fixed regimen. Secondary outcomes were change in the mean optical coherence tomography (OCT) central retinal thickness (CRT) and mean number of injections. Standardized mean difference (SMD) along with 95% confidence intervals (CIs) were calculated. Random-effect models were used for meta-analyses. Results: Four RCTs were included, with a total of 649 and 621 eyes in the T&E and fixed regimen cohort at 12 months, and 267 and 249 eyes at 24 months. Pooled analysis of mean BCVA change included all four RCTs at 12 months and two RCTs at 24 months, showing no difference between the two groups (12-month: SMD = 0.08, 95% CI: −0.20 to 0.35, p = 0.55; 24-month: SMD = 0.04, 95% CI: −0.13 to 0.21, p = 0.64). Pooled analysis of OCT CRT change at 12 months included three studies, showing no difference between the two groups (SMD = 0.03, 95% CI: −0.46 to 0.51, p = 0.91). Pooled analysis of mean injection number included all four RCTs at 12 months and two RCTs at 24 months, showing significant difference between the two groups (12-month: SMD = −1.11, 95% CI: −1.67 to −0.56, p < 0.001; 24-month: SMD = −1.34, 95% CI: −1.54 to −1.15, p < 0.001). Conclusion: A T&E regimen proved as effective as a fixed dosage regimen throughout a 24-month follow-up and with a lower number of injections.

The Effects of Qigong for Adults with Chronic Pain: Systematic Review and Meta-Analysis

2015 ◽  
Vol 43 (08) ◽  
pp. 1525-1539 ◽  
Author(s):  
Zhenggang Bai ◽  
Zhen Guan ◽  
Yuan Fan ◽  
Chuan Liu ◽  
Kehu Yang ◽  
...  
Keyword(s):  
Systematic Review ◽  
Chronic Pain ◽  
Clinical Trials ◽  
Randomized Clinical Trials ◽  
Meta Analysis ◽  
Random Effect ◽  
Waiting List ◽  
Significant Difference ◽  
And Control ◽  
General Care

A systematic review was conducted to evaluate the effectiveness of qigong as a treatment for chronic pain. Five electronic databases were searched from their date of establishment until July 2014. The review included 10 randomized clinical trials (RCTs) that compared the impacts of qigong on chronic pain with waiting list or placebo or general care. Random effect models and standard mean differences were used to present pain scores. A total of 10 RCTs met inclusion criteria. There was a statistically significant difference on reducing chronic pain between internal qigong and control (SMD: [Formula: see text]1.23 95% [Formula: see text], [Formula: see text]), external qigong and general care (SMD: [Formula: see text]1.53 95% [Formula: see text]), external qigong and placebo (SMD: [Formula: see text]0.51 95% [Formula: see text]), and internal qigong for chronic neck pain at 6 months (SMD: [Formula: see text]1.00 95% [Formula: see text]). The differences between external qigong and control, external qigong and waiting list, internal qigong and waiting list, and external for premenstrual syndromes were not significant. This study showed that internal qigong generated benefits on treating some chronic pain with significant differences. External qigong showed nonsignificant differences in treating chronic pain. Higher quality randomized clinical trials with scientific rigor are needed to establish the effectiveness of qigong in reducing chronic pain.

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