Ranibizumab Injection for Corneal Neovascularization Refractory to Bevacizumab Treatment

Vascular endothelial growth factor inhibitor is an emerging therapeutic modality for various ocular diseases with neovascularization (NV). However, for corneal NV, controversy remains regarding whether bevacizumab or ranibizumab is superior. A 32-year-old female diagnosed with herpetic keratoconjunctivitis with refractory corneal NV despite two previous subconjunctival and intrastromal bevacizumab injections, received two subconjunctival and intrastromal ranibizumab injections. Six months postoperatively, there was significant regression of the neovascular area and vessel caliber. Here, the authors report a case of improvement in corneal NV with subconjunctival and intrastromal ranibizumab injections, which was previously refractory to bevacizumab injection. The findings may suggest a new prospect in treating corneal NV.     

玻璃体腔内注射雷珠单抗治疗湿性AMD的护理

目的 总结玻璃体腔内注射雷珠单抗治疗湿性AMD的护理经验。方法 对30例湿性AMD患者行玻璃体腔内注射雷珠单抗注射液治疗,总结术前、术中及术后护理实施经验。结果 全组手术过程顺利,术后未出现严重并发症,30例31眼患者术后随访视力提高26眼（83.9%）,视力不变5眼,患者术后满意度100%。结论 玻璃体腔内注射雷珠单抗治疗湿性AMD,在治疗过程中需术前给予细致的指导和心理护理,做好术前检查,术中严格无菌操作,术后叮嘱患者定期随访,以确保疗效。     

雷珠单抗玻璃体腔注射辅助显微手术治疗对新生血管性青光眼患者血管内皮生长因子和血小板衍生生长因子含量的影响

目的研究雷珠单抗玻璃体腔注射辅助显微手术治疗对新生血管性青光眼(NVG)患者血管内皮生长因子(VEGF)和血小板衍生生长因子(PDGF)含量的影响。方法对我院32例(32眼)NVG患者资料进行回顾和分析,所有患者接受玻璃体腔注射雷珠单抗、小梁切除术和全视网膜光凝治疗。比较患者治疗前后眼压、视力、VEGF和PDGF,记录术后并发症和治疗成功率。结果 32例患者随访(8.57±1.69)个月,小梁切除术后1周、1个月、3个月、6个月眼压显著低于注药前,差异具有统计学意义(P0.05);术后末次随访视力较注药前显著提高(P0.05),视力提高率90.63%;患者注药后5 d和小梁切除术后1周、1个月、3个月、6个月房水、玻璃体液的VEGF和PDGF水平较注药前显著降低,差异具有统计学意义(P0.05);小梁切除术后前房出血率6.25%,包裹性滤过泡率6.25%,脉络膜脱落率3.13%;术后6个月手术成功率93.75%。结论雷珠单抗玻璃体腔注射辅助用于小梁切除术和全视网膜光凝治疗,可显著降低NVG患者VEGF和PDGF水平,降低眼压、提高视力,安全有效。     

Long-Term Stability of Anti-Vascular Endothelial Growth Factor (a-VEGF) Biologics Under Physiologically Relevant Conditions and Its Impact on the Development of Long-Acting Delivery Systems

The port delivery system with ranibizumab (PDS) is an investigational long-acting drug delivery system for the continuous release of ranibizumab, an anti-VEGF biologic, in the vitreous humor. The efficacy of the PDS implant relies on the maintenance of long-term drug stability under physiological conditions. Herein, the long-term stability of three anti-VEGF biologics - ranibizumab, bevacizumab and aflibercept - was investigated in phosphate buffered saline (PBS) at 37 °C for several months. Comparison of stability profiles shows that bevacizumab and aflibercept are increasingly prone to aggregation whereas ranibizumab undergoes minimal aggregation. Ranibizumab also shows the smallest loss in antigen binding capacity after long-term incubation in PBS. Even though the aggregated forms of bevacizumab and aflibercept bind to VEGF, the consequences of aggregation on immunogenicity, implant function and efficacy are unknown. These results highlight the importance of maintaining long-term drug stability under physiologically relevant conditions which is necessary for achieving efficacy with an in vivo continuous drug delivery device such as the PDS implant.     

雷珠单抗治疗视网膜分支静脉阻塞继发黄斑水肿过程中玻璃体的状态变化及其对疗效影响

目的 探讨雷珠单抗治疗视网膜分支静脉阻塞继发黄斑水肿（branch retinal vein occlusion-macular edema,BRVO-ME）过程中玻璃体状态的动态变化及其对疗效的影响。方法 回顾性分析2021年2—6月在中国科学技术大学附属第一医院眼科接受玻璃体腔注射雷珠单抗治疗的初诊BRVO-ME病人35例35眼,根据间接眼底镜,B超及光学相干断层扫描（optical coherence to-mography,OCT）结果对玻璃体状态进行评估,分为无PVD组17例,局限VMA组5例,广泛VMA组7例,完全PVD组6例。各组病人连续3月每月注射雷珠单抗1次,随访4个月以上,在每次注射1月后观察病人的玻璃体状态、黄斑厚度（central macular thick-ness,CMT）和最佳矫正视力（best corrected visual acuity,BCVA）。结果 35眼在治疗后BCVA和CMT均显著好转。各组病人在注药1次,2次,3次后的BCVA均差异无统计学意义。在第1次注药后,局限VMA组的CMT[452.00(433.50,591.50)μm]与无PV...     

阿柏西普和雷珠单抗治疗糖尿病性黄斑水肿的疗效

目的:比较阿柏西普和雷珠单抗治疗糖尿病性黄斑水肿(DME)的疗效。方法:前瞻性随机对照试验。纳入2020-06/2021-09于我院确诊的非增殖期糖尿病视网膜病变合并DME的患者35例60眼,均采用3+PRN方案行玻璃体腔注射治疗,其中17例30眼接受阿柏西普治疗(阿柏西普组),18例30眼接受雷珠单抗治疗(雷珠单抗组)。随访12mo,观察两组患者中心凹厚度(CMT)和最佳矫正视力(BCVA)情况,记录玻璃体腔注射次数和并发症发生情况。结果:治疗后1、3、6、12mo,阿柏西普组CMT和BCVA均明显优于雷珠单抗组(均P<0.001)。随访期间,阿柏西普组玻璃体腔注射次数少于雷珠单抗组(4.23±0.86次vs 6.40±0.97次,P<0.05),两组患者均未出现药物相关不良反应、眼内感染、血管栓塞等严重并发症。结论:阿柏西普和雷珠单抗治疗DME均具有明确的疗效和安全性,相较于雷珠单抗,阿柏西普可能是DME患者更有效和方便的治疗选择。