View clinical trials related to Age-Related Macular Degeneration.
Filter by:The purpose of the study is to investigate whether the efficacy of Lucentis treatment for exudative age-related macular degeneration is associated with VEGF and HTRA1 DNA polymorphisms
The purpose of this study is to determine if polymorphisms at rs11200638 on HTRA1 and rs1061170 on CFH are associated with an accelerated progression to advanced AMD (wet AMD or GA) in patients with early AMD (soft confluent drusen>120 microns ) in the study eye, and with either early AMD or advanced AMD in the non-study eye.
The current norm in clinical practice for the treatment of choroidal neovascular membranes (CNVM) secondary to Age-related Macular Degeneration(AMD) involves monthly injections of Ranibizumab until the disease is stabilized. At this point, most physicians tend to follow one of two treatment regimens. 'Treat -and-observe' entails regular follow-up of stable patients, with treatment thereafter only in the presence of disease recurrence. Alternatively, in a 'treat-and-extend' dosing strategy, intervals between treatments are extended as long as disease remains stable. Many clinicians, who employ a treat-and-extend dosing regimen, do not extend their treatment intervals beyond 3 months. However, it is possible that the subgroup of patients on every three months 'treat-and-extend' dosing may represent a uniquely, stable population that would perform particularly well on an observational regimen with regular follow-up. We hypothesize that there will be a low CNVM recurrence rate in wet AMD patients stable on every three months Ranibizumab dosing ('treat-and-extend'), who begin a treat-and-observe protocol.
This study will determine whether a drug called sirolimus is safe to give to people with geographic atrophy (GA) and if it can help preserve vision in patients. GA is an advanced form of dry age-related macular degeneration (AMD). AMD affects the macula, the central part of the retina at the back of the eye needed for sharp, clear vision. There are two types of AMD, wet and dry. In dry AMD, cells in the macula die. GA may be partially caused by inflammation. Sirolimus helps prevent inflammation and therefore may help people with GA. Researchers want to see whether sirolimus can help prevent vision loss in people with GA. People at least 56 years of age who have GA related to AMD in both eyes may be eligible for this study. This study requires at least 8 visits to the National Eye Institute over 1 year. Study visits will be every 2 months for 1 year. Participants will undergo the following procedures: - Participants will be screened with a medical history and physical exam. They will also have blood and urine tests, and eye exams. One eye will be selected as the study eye to receive the sirolimus injections. - Participants will have a sirolimus injection into the study eye at the first visit and every 2 months thereafter unless contraindicated. There will be a follow-up eye exam 1 month after the first injection.
This study is conducted in 3 stages. Stage 1 is an open-label, dose-escalation assessment of the safety of AGN-150998 administered as a single intravitreal injection to patients with advanced exudative Age-related Macular Degeneration (AMD). Stage 2 and Stage 3 are randomized, double-masked, comparisons of the safety and treatment effects on retinal edema and best-corrected visual acuity (BCVA) of AGN-150998 and ranibizumab in treatment-naive patients with exudative AMD. Study medication is administered as needed in Stage 2 and with a fixed-dosing schedule in Stage 3. The study objectives are (1) to identify the highest tolerated dose of AGN-150998, (2) to assess the safety and duration of treatment effects on retinal edema and BCVA, and (3) to characterize the systemic pharmacokinetic profile of AGN-150998.
Age Related Macular Degeneration (AMD) is the leading cause of blindness in North America. This condition causes a progressive loss of central vision, the part of your vision that allows you to read, drive and see images in sharp detail directly in front of you. The wet form of AMD is characterized by the growth and leakage of small blood vessels into the choroid layer of the eye, or the back of the eye. These leaking blood vessels disrupt the structure and function of the eye, causing loss of vision, particularly the sharp vision created by the macula area of the eye. Currently, the best treatment for wet AMD is a series of injections of an anti-vascular endothelial growth factor (anti-VEGF) drug, ranibizumab (Lucentis). The clinical response to treatment is varied. Approximately 70% of patients see a moderate vision gain (3-line gain on a visual acuity chart), but there are 30% who do not see a similar improvement in vision. There is no way to identify those patients who will respond with significant vision gain versus those who will not experience moderate vision gain. Recent research into AMD has demonstrated that genetic mutations are proving to be key risk factors for patients developing wet AMD, with up to 80% of wet AMD cases explained by inherited genetic variations. Scientists have theorized that there may be a genetic difference between those patients who see significant responses to treatment and those who do not. The investigators will be testing participant's genetic profile using the Macula Risk test and following their progress through the standard treatment for wet AMD over the course of this study. This study aims to demonstrate the association between known genetic variations and patient responses to treatment.
This is a pilot, prospective, interventional, case-control study investigating aqueous levels of vascular endothelial growth factor (VEGF) in eyes with AMD-related neovascularization treated with intravitreal bevacizumab at the Medical Retina Department, University of Molise, Campobasso.
ForeseeHome, an FDA-approved home device, was specifically designed for unsupervised Preferential-Hyperacuity-Perimeter (PHP) testing of Age Related Macular Degeneration (AMD) patients at home by characterizing central and paracentral metamorphopsia . The purpose of the current study is to evaluate if, in post-treatment patients, PHP parameters as measured with the ForeseeHome are in agreement with clinical decisions and retinal characteristics as measured with optical coherence tomography (OCT).
Purpose To evaluate the cataractogenic effect of intravitreal ranibizumab with the use of Lens Opacity Classification System III (LOCS III). Settings Cases with a diagnosis of wet AMD were included in this university practice based prospective study. Methods All cases had monthly injections of intravitreal ranibizumab in the first 3 months; subsequently an OCT-guided pro re nata injection regimen has been adopted. All cases had a comprehensive eye examination and LOCS III evaluation at baseline and 1, 3, 6 and 12 months after the initial injection. Examination outcomes and change from baseline in LOCS III grades at 12 months were recorded. Results Eighteen eyes of 13 cases (7 female, 6 male) were included in this study. The mean age at the baseline was 75,3 + 6,6 years. A mean of 3,4 + 0,7 injections were given on each eye. Mean follow-up was 13,83 + 2,33 months. Baseline mean visual acuity improved from 1,04 + 0,10 logMAR units to 0,76 + 0,26 logMAR units after 3 injections (P < 0.05). At the 12th month of follow-up mean visual acuity was 0,71 + 0,27 logMAR units. According to LOCS III grades none of the cases had a prominent change in nuclear color, nuclear opalescence, cortical and posterior subcapsular opacification throughout the follow-up. IOP remained stable at all follow-up points. No complications were recorded throughout the study. Conclusion Intravitreal ranibizumab is an efficient treatment in wet AMD. Results of LOCS III assessments in this pilot study suggest that intravitreal ranibizumab has no effect on the progression of lens opacity.
The purpose of this study is to compare the effectiveness of intravitreal bevacizumab injection (IVBI) with respect to simple observation in patients with subfoveal choroidal neovascularisation (CNV) secondary to age-related macular degeneration (AMD) presenting at baseline with best corrected visual acuity (BCVA) less than 20/200.