scholarly journals Vascular endothelial growth factor inhibitors for retinopathy of prematurity

2020 ◽  
Vol 20 (4) ◽  
pp. 216-220
Author(s):  
O.V. Zhukova ◽  
◽  
I.A. Mal’tseva ◽  
A.V. Zolotarev ◽  
◽  
...  

The article addresses current treatment modalities for threshold retinopathy of prematurity (ROP) and aggressive posterior retinopathy of prematurity (APROP), in particular, intravitreal administration of vascular endothelial growth factor (VEGF) inhibitors. The results of multicenter clinical trials evaluating pegaptanib, bevacizumab, and ranibizumab are discussed. The clinical effect of intravitreal anti-VEGF drugs was compared to the efficacy of laser retinal photocoagulation. In children with ROP, anti-VEGF drugs are equal or even superior to the conventional laser retinal photocoagulation in terms of clinical efficacy. No negative effects of anti-VEGF drugs on ocular tissues or vasculature development in premature children were demonstrated. Moreover, several studies show the potential efficacy of intravitreal anti-VEGF drugs plus avascular zone photocoagulation for APROP. Finally, our experience with intravitreal ranibizumab for threshold ROP and plus disease in a patient who was followed-up for subsequent 9 years is described.Keywords: retinopathy of prematurity, plus disease, aggressive posterior retinopathy of prematurity, anti-VEGF drugs, ranibizumab.For citation: Zhukova O.V., Mal’tseva I.A., Zolotarev A.V. Vascular endothelial growth factor inhibitors for retinopathy of prematurity. Russian Journal of Clinical Ophthalmology. 2020;20(4):216–220. DOI: 10.32364/2311-7729-2020-20-4-216-220.

2021 ◽  
Author(s):  
Jeany Q. Li ◽  
Ulrich Kellner ◽  
Birgit Lorenz ◽  
Andreas Stahl ◽  
Tim U. Krohne

Zusammenfassung Hintergrund Durch Verbesserungen in der neonatologischen Versorgung von Frühgeborenen und die Entwicklung neuer Behandlungsmöglichkeiten der Frühgeborenenretinopathie („retinopathy of prematurity“ [ROP]) haben sich die Anforderungen an das ROP-Screening seit der Veröffentlichung der letzten Fassung der deutschen Leitlinie zum ROP-Screening im Jahr 2008 verändert. Auf Grundlage aktueller Studiendaten wurde die Leitlinie in 2020 grundlegend überarbeitet und in einer aktualisierten Fassung veröffentlicht. Ziel Dieser Artikel fasst die wichtigsten Änderungen in der neuen Leitlinie zusammen. Ergebnisse Die Altersgrenze für einen Screeningeinschluss wurde für Kinder ohne zusätzliche Risikofaktoren auf ein Gestationsalter von unter 31 Wochen gesenkt. Die Mindestdauer für eine Sauerstoffsupplementation, die einen Einschluss in das Screening bei Frühgeborenen erforderlich macht, wurde auf über 5 Tage angehoben. Eine Behandlung bei ROP in Zone II kann nun schon bei jedem Stadium 3 mit Plus-Symptomatik unabhängig von der Anzahl der betroffenen Uhrzeiten erfolgen. Für die Nachkontrollen nach Anti-VEGF („vascular endothelial growth factor“)-Therapie wurden Kriterien zur Frequenz und Dauer definiert. Das verbindliche Dokument für diese und weitere neue Empfehlungen ist die Leitlinie selber. Schlussfolgerungen Die Empfehlungen der Leitlinie ermöglichen eine zuverlässige Identifikation von Kindern mit ROP-Risiko für den Einschluss in das Screening und eine rechtzeitige Erkennung fortgeschrittener Krankheitsstadien für die Therapieeinleitung, um so Erblindung durch ROP zu verhindern.


2012 ◽  
Vol 06 (05) ◽  
pp. 296
Author(s):  
Yoreh Barak ◽  
Mark A Ihnen ◽  
Shlomit Schaal ◽  
◽  
◽  
...  

Vascular endothelial growth factor (VEGF) plays a pivotal role in stimulating the growth of pathological subretinal choroidal neovascularisation (CNV). The increased production of VEGF and subsequent CNV formation can occur in degenerative, inflammatory and vascular diseases of the retina and choroid, often leading to severe visual impairment. Anti-VEGF agents which are readily available today are much better, more potent and longer acting in comparison with previous treatment modalities and therefore have dramatically improved the prognosis of patients with CNV. There are four intravitreal anti-VEGF pharmacotherapies proven by large prospective, multicentre, randomised trials to be effective in the treatment of age-related macular degeneration (AMD)-related CNV: pegaptanib (Macugen®, Eyetech Pharmaceuticals, Palm Beach Gardens, FL), ranibizumab (Lucentis®, Genentech, Inc., South San Francisco, CA), bevacizumab (Avastin®, Genentech, Inc., South San Francisco, CA) and VEGF Trap-Eye (Eylea® Regeneron, Tarrytown, NY). However, there are still many challenges and unanswered questions regarding the optimal anti-VEGF pharmacotherapy agent, the best clinical treatment regimen, the most effective dosage, the optimal injection frequency and the duration of treatment. The heavy burden of frequent injections on the elderly patient population and physicians begs for a simpler way of drug administration or development of more potent compounds.


2012 ◽  
Vol 05 (02) ◽  
pp. 107
Author(s):  
Yoreh Barak ◽  
Mark A Ihnen ◽  
Shlomit Schaal ◽  
◽  
◽  
...  

Vascular endothelial growth factor (VEGF) plays a pivotal role in stimulating the growth of pathologic subretinal choroidal neovascularization (CNV). The increased production of VEGF and subsequent CNV formation can occur in degenerative, inflammatory, and vascular diseases of the retina and choroid, often leading to severe visual impairment. Anti-VEGF agents which are readily available today are much better, more potent, and longer acting in comparison with previous treatment modalities, and therefore have dramatically improved the prognosis of patients with CNV. There are four intravitreal anti-VEGF pharmacotherapies proven by large prospective, multicenter, randomized trials to be effective in the treatment of age-related macular degeneration (AMD)-related CNV: pegaptanib (Macugen®, Eyetech Pharmaceuticals, Palm Beach Gardens, FL), ranibizumab (Lucentis®, Genentech, Inc., South San Francisco, CA), bevacizumab (Avastin®, Genentech, Inc., South San Francisco, CA), and VEGF Trap-Eye (Eylea® Regeneron, Tarrytown, NY). However, there are still many challenges and unanswered questions regarding the optimal anti-VEGF pharmacotherapy agent, the best clinical treatment regimen, the most effective dosage, the optimal injection frequency, and the duration of treatment. The heavy burden of frequent injections on the elderly patient population and physicians begs for a simpler way of drug administration or development of more potent compounds.


2016 ◽  
Vol 11 (4) ◽  
pp. 212-220
Author(s):  
Nataliya Nikolaevna Sadovnikova ◽  
N. V Prisich ◽  
V. V Brzhesky

Laser photocoagulation of avascular retina remains the standard method for the treatment of retinopathy of prematurity (RP). At the same time, the outcomes of combined multi-stage surgical interventions on the patients presenting with this condition leave much to be desired. In the present review, we have undertaken the analysis of more than 50 articles related to the use of antibodies against the vascular endothelial growth factor (Anti-VEGF) that were published during the period from 2005 to 2015; the analysis included the use of the “off-label” medications as the potentially promising method for the treatment of retinopathy of prematurity. In the overwhelming majority of the studies, the use of anti-VEGF therapy as monotherapy or in the combination with conventional laser photocoagulation has been shown to be efficient for the treatment of stage III+ of the active period of retinopathy of prematurity. One of the important advantages of monotherapy is it does not cause the irreversible destruction of the peripheral retina, in contrast to the action of laser photocoagulation. Moreover, the intravitreal administration of the inhibitors of angiogenesis does not interfere with the growth of blood vessels in the peripheral retina as demonstrated by fluorescein angiography and electroretinography. At the same time, the results of certain published investigations give evidence of the important role played by the vascular endothelial growth factor in the processes of angiogenesis, glomerulogenesis, and alveolarization during the normal lung development. In addition, it has been demonstrated that bevacizumab can migrate from the vitreous body and penetrate into the systemic circulation where it causes the reduction of the serum VEGF levels in the infants presenting with retinopathy of prematurity. In connection with this, the majority of the authors emphasize the necessity of further investigations (based on the results of monitoring the concentration of serum VEGF) for the evaluation of the safety of such medications, their potential long-term effects on other organs and systems in the course of their development as well as possible adverse reactions they are likely to induce. Some problems related to the timing and dosage of the intravitreal administration of the inhibitors of angiogenesis remain a matter of controversy.


2019 ◽  
Vol 7 (27) ◽  
pp. 58-63
Author(s):  
Camilo Pena-Hernandez ◽  
Rubayat Rahman ◽  
Subhanudh Thavaraputta ◽  
Nishi Garg

Angiogenesis has been known for decades to be an essential step in cancer growth. Inrecent years, the vascular endothelial growth factor (VEGF) family was identified as a crucialstimulus (and product by tumors) for neovascularization, nutrition, oxygen delivery, andmetastatic dissemination; VEGF inhibition currently has an important role in cancer therapy.The development and increased use of VEGF inhibitors has led to the identification of sideeffects and renal complications. Vascular endothelial growth factor is produced by renalpodocytes to maintain a healthy endothelium, mesangium, and tubular structures. With thedisruption of nutritional processes in the kidney, there can be renal injury starting at the cellularlevel and referred to by some experts as anti-VEGF nephropathy (hypertension, thromboticmicroangiopathy, proteinuria, renal failure).Here we present the case of a man with renal cell carcinoma who was treated with surgicalresection and later started on sunitinib. He developed several acute and chronic medicalproblems, including some related to anti-VEGF toxicity.


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