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https://www.readbyqxmd.com/read/29148965/nonclinical-safety-assessment-of-anti-factor-d-key-strategies-and-challenges-for-the-nonclinical-development-of-intravitreal-biologics
#1
Vladimir Bantseev, Rebecca Erickson, Douglas Leipold, Caroline Amaya, Paul E Miller, Helen Booler, Evan A Thackaberry
PURPOSE: The nonclinical toxicology program described here was designed to characterize the safety profile of anti-factor D (AFD; FCFD4514S, lampalizumab) to support intravitreal (ITV) administration in patients with geographic atrophy (GA). METHODS: The toxicity of AFD was assessed in a single-dose and 6-month repeat-dose study in monkeys at doses up to 10 mg/eye. Toxicity was assessed by clinical ophthalmic examinations, intraocular pressure measurements, ocular photography, electroretinography, fluorescein angiography, optical coherence tomography, and anatomic pathology...
November 17, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29148864/morphologic-criteria-of-lesion-activity-in-neovascular-age-related-macular-degeneration-a-consensus-article
#2
Stefania Miotto, Nicola Zemella, Elena Gusson, Giacomo Panozzo, Sandro Saviano, Giuseppe Scarpa, Giorgio Boschi, Stefano Piermarocchi
Intravitreal antivascular endothelial growth factor drugs represent the current standard of care for neovascular age-related macular degeneration (nAMD). Individualized treatment regimens aim at obtaining the same visual benefits of monthly injections with a reduced number of injections and follow-up visits, and, consequently, of treatment burden. The target of these strategies is to timely recognize lesion recurrence, even before visual deterioration. Early detection of lesion activity is critical to ensure that clinical outcomes are not compromised by inappropriate delays in treatment, but questions remain on how to effectively monitor the choroidal neovascularization (CNV) activity...
November 17, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29148027/sequential-tissue-plasminogen-activator-pneumatic-displacement-and-anti-vegf-treatment-for-submacular-hemorrhage
#3
Handan Bardak, Yavuz Bardak, Yeşim Erçalık, Burak Erdem, Gökhan Arslan, Semrin Timlioglu
PURPOSE: To report the results of our sequential intravitreal (IV) tissue plasminogen activator (tPA), pneumatic displacement (PD), and IV anti-vascular endothelial growth factor (VEGF) treatment in patients with neovascular age-related macular degeneration (nAMD)-related submacular hemorrhage (SMH). METHODS: A total of 16 eyes of 16 patients with SMH of less than 15 days duration were included in this retrospective pilot study. The tPA was applied on the day of diagnosis, and PD was performed the following day...
November 4, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29146732/mir-539-5p-inhibits-experimental-choroidal-neovascularization-by-targeting-cxcr7
#4
Yifan Feng, Jing Wang, Yuanzhi Yuan, Xi Zhang, Minqian Shen, Fei Yuan
Stromal cell-derived factor-1 (SDF-1) has been previously confirmed to participate in the formation of choroidal neovascularization (CNV) via its receptor, CXC chemokine receptor (CXCR) 4; CXCR7 is a recently identified receptor for SDF-1. The molecular mechanisms and therapeutic value of CXCR7 in CNV remain undefined. In this study, experimental CNV was induced by laser photocoagulation in Brown-Norway pigmented rats, and aberrant CXCR7 overexpression was detected in the retinal pigment epithelial/choroid/sclera tissues of laser-injured eyes...
November 16, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29146648/economic-evaluation-of-an-e-mental-health-intervention-for-patients-with-retinal-exudative-diseases-who-receive-intraocular-anti-vegf-injections-e-pseye-protocol-for-a-randomised-controlled-trial
#5
Hilde P A van der Aa, Ger H M B van Rens, Frank D Verbraak, Machteld Bosscha, Marc A Koopmanschap, Hannie C Comijs, Pim Cuijpers, Ruth M A van Nispen
INTRODUCTION: Because of the great potential of vascular endothelial growth factor inhibitors (anti-VEGF) for retinal exudative diseases, an increased number of patients receives this treatment. However, during this treatment, patients are subjected to frequent invasive intravitreal injections, and the effects on reversing the process of vision loss are uncertain, which may have negative consequences for patients' mental health. One in three patients experience at least mild symptoms of depression/anxiety...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29142888/effect-of-intravitreal-injection-of-bevacizumab-on-acute-central-serous-chorioretinopathy-patients-who-visited-feiz-hospital-during-2014-2015-period
#6
Mohamad Reza Akhlaghi, Cobra Nasrollahi, Seyed Mohamad Namgar, Farzan Kianersi, Ali Reza Dehghani, Reza Arefpour
Background: Aim of this clinical trial is the evaluation of the effect of intravitreal injection of bevacizumab on acute central serous chorioretinopathy (CSC). Materials and Methods: In a nonrandomized clinical trial, 36 CSC eyes (with <1-month disease history) were examined. Initially, all the patients underwent posterior and anterior segment examinations as well as complete eye examination to evaluate the best spectacle-corrected visual acuity (BSCVA). Then, optical coherence tomography was performed to confirm the diagnosis...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/29142567/outcomes-of-intravitreal-bevacizumab-and-macular-photocoagulation-for-treatment-of-diabetic-macular-edema-in-a-tertiary-care-eye-hospital-karachi
#7
Adil Salim Jafri, Aziz-Ur-Rehman, Abdul Haleem Mirani, Saleh Memon
Objective: To study the outcomes of intravitreal injection of Bevacizumab and laser photocoagulation in the treatment of diabetic macular edema (DME). Methods: Seventy-two eyes of 59 patients with diabetic macular edema were divided into two groups of 41 eyes (Group-A) and 31 eyes (Group-B). Subjects in group-A were treated with three intravitreal injections of Bevacizumab (IVB), and that of group-B with macular photocoagulation. Duration of study was 9 months. Follow up pattern for both groups was1, 2, 3 and 6 months...
September 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29141079/visual-function-response-to-ocriplasmin-for-the-treatment-of-vitreomacular-traction-and-macular-hole-the-oasis-study
#8
Benedicte Lescrauwaet, Luc Duchateau, Thomas Verstraeten, Timothy L Jackson
Purpose: To assess the effect of ocriplasmin on visual function response (VFR) measured using visual acuity (VA) and vision-related quality of life, and to quantify the association between release of vitreomacular adhesion (VMA) at day 28 and VFR. Methods: Prespecified analysis of secondary endpoints from a randomized controlled trial. Of 220 participants with symptomatic VMA/vitreomacular traction (VMT), including VMT associated with a macular hole up to 400 μm, 146 received a single intravitreal injection of 125 μg ocriplasmin and 74 a sham injection...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29138543/location-of-submacular-hemorrhage-as-a-predictor-of-visual-outcome-after-intravitreal-ranibizumab-for-age-related-macular-degeneration
#9
Dimitrios Karagiannis, Irini Chatziralli, Konstantinos Kaprinis, Ilias Georgalas, Efstratios Parikakis, Panagiotis Mitropoulos
Purpose: To evaluate the anatomical and functional outcomes in patients with submacular hemorrhage (SMH) due to age-related macular degeneration (AMD) treated with ranibizumab, and to evaluate the potential role of the SMH location in the final outcome after treatment. Methods: Participants in this study were 12 treatment-naïve patients with SMH due to neovascular AMD who were treated with intravitreal ranibizumab and had at least 12 months' follow-up. All patients underwent best-corrected visual acuity measurement and optical coherence tomography at baseline and at every visit posttreatment, while fluorescein angiography was done at baseline and at the discretion of the physician thereafter...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/29137019/optical-coherence-tomography-angiography-in-patients-with-diabetic-retinopathy-treated-with-anti-vegf-intravitreal-injections-case-report
#10
Katarzyna Michalska-Małecka, Anna Heinke Knudsen
PURPOSE: To present optical coherence tomography angiography (OCTA) features in patients with diabetic retinopathy (DR) at the baseline and in response to treatment with anti-VEGF intravitreal injections. To investigate the role of OCTA in management of patients with DR. METHODS: Retrospective case series showing primary outcomes of 3 patients with DR and diabetic macular edema. Patients were injected intravitreally a loading phase of 3 monthly 2.0 mg aflibercept, followed by 2 injections bimonthly (5 injections in total)...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29135941/the-small-heat-shock-protein-%C3%AE-crystallin-b-shows-neuroprotective-properties-in-a-glaucoma-animal-model
#11
Fabian Anders, Aiwei Liu, Carolina Mann, Julia Teister, Jasmin Lauzi, Solon Thanos, Franz H Grus, Norbert Pfeiffer, Verena Prokosch
Glaucoma is a neurodegenerative disease that leads to irreversible retinal ganglion cell (RGC) loss and is one of the main causes of blindness worldwide. The pathogenesis of glaucoma remains unclear, and novel approaches for neuroprotective treatments are urgently needed. Previous studies have revealed significant down-regulation of α-crystallin B as an initial reaction to elevated intraocular pressure (IOP), followed by a clear but delayed up-regulation, suggesting that this small heat-shock protein plays a pathophysiological role in the disease...
November 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29135889/comparison-of-resolution-of-vitreomacular-traction-after-ocriplasmin-treatment-or-vitrectomy
#12
Paula Scholz, Vasilena Sitnilska, Jelka Hess, Matthias Becker, Stephan Michels, Sascha Fauser
PURPOSE: To compare the functional and morphologic outcome of patients with vitreomacular traction (VMT) treated with either ocriplasmin treatment or vitrectomy. METHODS: Retrospective case series of patients treated with ocriplasmin or vitrectomy for VMT. OUTCOME MEASURES: resolution of VMT, change in outer retinal thickness, integrity of ellipsoid zone, subretinal fluid formation, and best-corrected visual acuity 2 weeks and 4 months after treatment...
November 9, 2017: Retina
https://www.readbyqxmd.com/read/29135888/exit-strategy-in-a-treat-and-extend-regimen-for-exudative-age-related-macular-degeneration
#13
Petra Arendt, Siqing Yu, Marion R Munk, Andreas Ebneter, Sebastian Wolf, Martin S Zinkernagel
PURPOSE: To evaluate the outcome of an exit strategy in a treat-and-extend regimen for neovascular age-related macular degeneration. METHODS: Five hundred and ninety-eight eyes of 488 patients with neovascular age-related macular degeneration receiving intravitreal anti-vascular endothelial growth factor injections according to a treat-and-extend regimen were included in this retrospective study. A treat-and-extend regimen with either interval extension by 2 weeks or shortening by 1 week was used...
November 9, 2017: Retina
https://www.readbyqxmd.com/read/29135801/timing-and-outcome-of-surgery-for-persistent-macular-hole
#14
Rutul Patel, Mahesh Gopalakrishnan, Anantharaman Giridhar
PURPOSE: To evaluate the efficacy and optimum timing for resurgery in case of persistent macular hole (MH). METHODS: Twenty-five eyes of 25 patients who underwent fluid-air exchange with intravitreal C3F8 for persistent MH after vitrectomy + internal limiting membrane peeling + SF6 were included in the study. Best-corrected visual acuity, optical coherence tomography features including base diameter and configuration of MH, and time duration between the two surgeries were noted...
November 10, 2017: Retina
https://www.readbyqxmd.com/read/29135319/crosslinking-enzyme-lysyl-oxidase-modulates-scleral-remodeling-in-form-deprivation-myopia
#15
Ying Yuan, Min Li, Qingzhong Chen, Rao Me, Yunjie Yu, Qing Gu, Guangsen Shi, Bilian Ke
PURPOSE: Scleral remodeling causes the excessive ocular elongation that underlies myopia. Lysyl oxidase (LOX), a copper-containing amine oxidase, can catalyze collagen and elastin crosslinking. The purpose of this study was to investigate the role of LOX in scleral remodeling in form-deprivation myopia (FDM). METHODS: Seventy-five guinea pigs were randomly divided into five groups as follows: a normal control group, an FDM group, an FDM plus β-aminopropionitrile (BAPN) group, an FDM plus TGF-β1 (TGF-β1) group, and an FDM plus vehicle group...
November 14, 2017: Current Eye Research
https://www.readbyqxmd.com/read/29134820/pharmacokinetics-of-intravitreal-anti-vegf-drugs-in-vitrectomized-versus-non-vitrectomized-eyes
#16
Magdalena Edington, Julie Connolly, Ngaihang Victor Chong
Introduction The review aims to discuss effects of vitrectomy on pharmacokinetics of anti-vascular endothelial growth factor (anti-VEGF) agents, and attempt to provide treatment guidance. Areas Covered An Embase search was conducted using the terms 'anti-VEGF', 'pegaptanib', 'ranibizumab', 'bevacizumab', 'aflibercept', 'pharmacokinetics', 'half-life', 'clearance', 'metabolism', 'vitrectomy', 'vitrectomized'. Published data regarding the pharmacokinetic properties of the above drugs and the effect of vitrectomy in animal and human eyes was reviewed...
November 14, 2017: Expert Opinion on Drug Metabolism & Toxicology
https://www.readbyqxmd.com/read/29134696/refractive-changes-after-intravitreal-ranibizumab-injections-for-diabetic-macular-oedema
#17
Irini Chatziralli, Athanasios Chatzipantelis, Eleni Dimitriou, Evgenia Mpourouki, George Theodossiadis, Panagiotis Theodossiadis
PURPOSE: The purpose of this study was to evaluate refractive changes after intravitreal ranibizumab injections for the treatment of diabetic macular oedema. METHODS: Participants in this retrospective study were 35 patients (35 eyes) with diabetic macular oedema, who received intravitreal ranibizumab injections. Spherical equivalent refractive power was evaluated before treatment and at least one month after the last injection where no fluid existed. Demographic characteristics, visual acuity, central retinal thickness and the number of injections were recorded and analysed...
November 14, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29134694/intracorneal-haemorrhage-after-intravitreal-injections
#18
Aditi G Dastidar, Ravi D Barbhaya, Chinmayi Vyas, Kumar Saurabh, Rupak Roy
No abstract text is available yet for this article.
November 14, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29134182/high-dose-2-5-mg-intravitreal-bevacizumab-as-rescue-therapy-for-persistent-postradiation-cystoid-macular-edema
#19
Mohammed Ali Khan, Arman Mashayekhi, Kyle Ferguson, Jerry A Shields, Carol L Shields
Background/Aims: To investigate the efficacy of intravitreal high-dose (2.5 mg/0.1 mL) bevacizumab as rescue therapy for postradiation cystoid macular edema (CME) resistant to standard-dose (1.25 mg/0.05 mL) bevacizumab. Methods: Retrospective, interventional case series. Results: Fifteen eyes of 15 patients were included. Eyes were treated with a mean of 10 standard-dose (1.25 mg) bevacizumab injections but failed to show CME resolution. Following 3 monthly treatments of high-dose (2...
September 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29133669/severe-gemella-haemolysans-endophthalmitis-following-ranibizumab-intravitreal-injection
#20
Silvia Olivia Salceanu, Sarah Levy, Richard Cunningham, Kwabena Frimpong-Ansah
Gemella haemolysans is a commensal of the upper respiratory tract that is rarely involved in ocular pathology. We present a unique case of endophthalmitis with negative cultures and positive 16s ribosomal ribonucleic acid gene sequencing showing G. haemolysans infection after an intravitreal ranibizumab injection for wet age-related macular degeneration.
November 2017: Indian Journal of Ophthalmology
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