抗VEGF治疗眼新生血管性疾病(2)
2.3 ranibizumab(商品名为lucentis)
于2006获得美国FDA批准,是第二代人源化的抗VEGF 重组鼠单克隆抗体片断。可与VEGF所有异构体结合及其降解产物并使其失去活性,由于分子量小,能很好地穿透视网膜,药物经玻璃体腔内注射可大部分到达视网膜内。玻璃体注射除治疗AMD外,对于ROP[17],视网膜中央及分支静脉阻塞[18]以及新生血管性青光眼均显示良好的疗效,但同样也存在一些并发症[19~21],包括眼内炎、视网膜脱离、外伤性白内障、眼内感染和眼内压升高、视网膜色素上皮层撕裂、动脉血栓。
目前临床上应用的抗VEGF药物均为非选择性抑制VEGF-A的全部亚型或VEGF165的完整片断,不能靶向性抑制病理性新生血管,势必会干扰正常血管的构建,引起新的并发症。相比之下,一些新的抗VEGF药物,如VEGF-Trap,Cand5,Bevasiranib,PTK787等更为特异性地、高效性地阻断病理性新生血管,减少非选择性抗VEGF的副作用,正在进行Ⅰ~Ⅲ期临床试验,显示出良好的应用前景。VEGF-Trap是一种强力VEGF受体阻断剂,VEGF Trap与单克隆抗体相比,对VEGF有着更强的亲和力。Cand5和Bevasiranib是利用siRNA技术开发的药物,2006年美国基因治疗协会的年度会议上介绍了Ⅱ期临床试验结果,这项试验为随机双盲,有129名较为严重的湿性AMD患者参加,全部患者均显示出了疗效,而且未出现任何严重的药物副作用及毒性反应。
, http://www.100md.com
给药途径是引起并发症的一个主要原因,在治疗角膜新生血管时主要是结膜下注射[22],引起并发症的几率小,在治疗眼后段新生血管如AMD时主要采用玻璃体腔内注射,一般需要每月1次,多次玻璃体腔内注射带来的并发症风险大大增加,因此,临床上在再次注射前联合眼部OCT检查,评估前次治疗效果和再次发生渗漏的危险性是有必要的[23,24]。
[参考文献]
[1]Brown DM, Regillo CD.Anti-VEGF agents in the treatment of neovascular age-related macular degeneration: applying clinical trial results to the treatment of everyday patients[J]. 2007,144(4):627-637.
[2]Boyer DS, Antoszyk AN, Awh CC,et al. Subgroup analysis of the MARINA Study of ranibizumab in neovascular age-related macular degeneration[J].Ophthalmology,2007,114:246-252.
, 百拇医药
[3]Heier JS, Antoszyk AN, Pavan PR, et al. Ranibizumab for the treatment of neovascular age-related macular degeneration: a PHASEⅠ/Ⅱ multicenter, controlled, multidose study[J].Ophthalmology, 2006,113:632.
[4]Mackiewicz J, Mańkowska A, Dolar-Szczasny J,et al. Intravitreal bevacizumab (Avastin) iniections for neovascular age-related macular degeneration (AMD)——preliminary results[J]. Klin Oczna,2007,109(4-6):146-149.
[5]Kaiser PK, Blodi BA, Shapiro H, et al.Angiographic and optical coherence tomographic results of the MARINA study of ranibizumab in neovascular age-related macular degeneration[J].Ophthalmology,2007,114(10):1868-1875.
, http://www.100md.com
[6]Brown DM, Kaiser PK, Michels M,et al.ANCHOR study group. Ranibizumab versus verteporfin for neovascular age-related macular degeneration[J]. N Engl J Med,2006,355:1432-1444.
[7]Spaide RF, Laud K, Fine HF, et al. Intravitreal bevacizumab treatment of choroidal neovascularization secondary to age-related macular degeneration[J]. Retina ,2006,26:383-390.
[8]Furlani BA, Meyer CH, Rodrigues EB, et al. Emerging pharmacotherapies for diabetic macular edema[J]. Expert Opin Emerg Drugs,2007,12(4):591-603.
, 百拇医药
[9]Ambati BK, Nozaki M, Singh N, et al. Corneal avascularity is due to soluble VEGF receptor-1[J].Nature,2006,443(7114):993-997.
[10]Alikacem N, Yoshizawa T, Nelson KD,et al.Quantitative MR imaging study of intravitreal sustained release of VEGF in rabbits[J]. Invest Ophthalmol Vis Sci,2000,41(6):1561-1569.
[11]Pieh C, Agostini H, Buschbeck C,et al.VEGF-A, VEGFR-1, VEGFR-2 and Tie 2 levels in plasma of premature infants: Relationship to retinopathy of prematurity[J].Br J Ophthalmol,2008,11:(Epub ahead of print).
[12]Andreoli, Christopher M,Miller, et al.Anti-vascular endothelial growth factor therapy for ocular neovascular disease[J].Current Opinion in Ophthalmology,18(6):502-508., http://www.100md.com(罗 灵 张卯年)
于2006获得美国FDA批准,是第二代人源化的抗VEGF 重组鼠单克隆抗体片断。可与VEGF所有异构体结合及其降解产物并使其失去活性,由于分子量小,能很好地穿透视网膜,药物经玻璃体腔内注射可大部分到达视网膜内。玻璃体注射除治疗AMD外,对于ROP[17],视网膜中央及分支静脉阻塞[18]以及新生血管性青光眼均显示良好的疗效,但同样也存在一些并发症[19~21],包括眼内炎、视网膜脱离、外伤性白内障、眼内感染和眼内压升高、视网膜色素上皮层撕裂、动脉血栓。
目前临床上应用的抗VEGF药物均为非选择性抑制VEGF-A的全部亚型或VEGF165的完整片断,不能靶向性抑制病理性新生血管,势必会干扰正常血管的构建,引起新的并发症。相比之下,一些新的抗VEGF药物,如VEGF-Trap,Cand5,Bevasiranib,PTK787等更为特异性地、高效性地阻断病理性新生血管,减少非选择性抗VEGF的副作用,正在进行Ⅰ~Ⅲ期临床试验,显示出良好的应用前景。VEGF-Trap是一种强力VEGF受体阻断剂,VEGF Trap与单克隆抗体相比,对VEGF有着更强的亲和力。Cand5和Bevasiranib是利用siRNA技术开发的药物,2006年美国基因治疗协会的年度会议上介绍了Ⅱ期临床试验结果,这项试验为随机双盲,有129名较为严重的湿性AMD患者参加,全部患者均显示出了疗效,而且未出现任何严重的药物副作用及毒性反应。
, http://www.100md.com
给药途径是引起并发症的一个主要原因,在治疗角膜新生血管时主要是结膜下注射[22],引起并发症的几率小,在治疗眼后段新生血管如AMD时主要采用玻璃体腔内注射,一般需要每月1次,多次玻璃体腔内注射带来的并发症风险大大增加,因此,临床上在再次注射前联合眼部OCT检查,评估前次治疗效果和再次发生渗漏的危险性是有必要的[23,24]。
[参考文献]
[1]Brown DM, Regillo CD.Anti-VEGF agents in the treatment of neovascular age-related macular degeneration: applying clinical trial results to the treatment of everyday patients[J]. 2007,144(4):627-637.
[2]Boyer DS, Antoszyk AN, Awh CC,et al. Subgroup analysis of the MARINA Study of ranibizumab in neovascular age-related macular degeneration[J].Ophthalmology,2007,114:246-252.
, 百拇医药
[3]Heier JS, Antoszyk AN, Pavan PR, et al. Ranibizumab for the treatment of neovascular age-related macular degeneration: a PHASEⅠ/Ⅱ multicenter, controlled, multidose study[J].Ophthalmology, 2006,113:632.
[4]Mackiewicz J, Mańkowska A, Dolar-Szczasny J,et al. Intravitreal bevacizumab (Avastin) iniections for neovascular age-related macular degeneration (AMD)——preliminary results[J]. Klin Oczna,2007,109(4-6):146-149.
[5]Kaiser PK, Blodi BA, Shapiro H, et al.Angiographic and optical coherence tomographic results of the MARINA study of ranibizumab in neovascular age-related macular degeneration[J].Ophthalmology,2007,114(10):1868-1875.
, http://www.100md.com
[6]Brown DM, Kaiser PK, Michels M,et al.ANCHOR study group. Ranibizumab versus verteporfin for neovascular age-related macular degeneration[J]. N Engl J Med,2006,355:1432-1444.
[7]Spaide RF, Laud K, Fine HF, et al. Intravitreal bevacizumab treatment of choroidal neovascularization secondary to age-related macular degeneration[J]. Retina ,2006,26:383-390.
[8]Furlani BA, Meyer CH, Rodrigues EB, et al. Emerging pharmacotherapies for diabetic macular edema[J]. Expert Opin Emerg Drugs,2007,12(4):591-603.
, 百拇医药
[9]Ambati BK, Nozaki M, Singh N, et al. Corneal avascularity is due to soluble VEGF receptor-1[J].Nature,2006,443(7114):993-997.
[10]Alikacem N, Yoshizawa T, Nelson KD,et al.Quantitative MR imaging study of intravitreal sustained release of VEGF in rabbits[J]. Invest Ophthalmol Vis Sci,2000,41(6):1561-1569.
[11]Pieh C, Agostini H, Buschbeck C,et al.VEGF-A, VEGFR-1, VEGFR-2 and Tie 2 levels in plasma of premature infants: Relationship to retinopathy of prematurity[J].Br J Ophthalmol,2008,11:(Epub ahead of print).
[12]Andreoli, Christopher M,Miller, et al.Anti-vascular endothelial growth factor therapy for ocular neovascular disease[J].Current Opinion in Ophthalmology,18(6):502-508., http://www.100md.com(罗 灵 张卯年)